4 * Copyright 1998 Eric Kohl
5 * Copyright 2000 Eric Kohl for CodeWeavers
6 * Copyright 2003 Maxime Bellenge
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 * - Imagelist support (partially).
24 * - Callback items (under construction).
25 * - Hottrack support (partially).
26 * - Custom draw support (including Notifications).
27 * - Drag and Drop support (including Notifications).
29 * - Use notification format
30 * - Correct the order maintenance code to preserve valid order
40 #include "wine/unicode.h"
46 #include "imagelist.h"
49 #include "wine/debug.h"
51 WINE_DEFAULT_DEBUG_CHANNEL(header);
61 INT iOrder; /* see documentation of HD_ITEM */
63 BOOL bDown; /* is item pressed? (used for drawing) */
64 RECT rect; /* bounding rectangle of the item */
65 DWORD callbackMask; /* HDI_* flags for items that are callback */
71 HWND hwndNotify; /* Owner window to send notifications to */
72 INT nNotifyFormat; /* format used for WM_NOTIFY messages */
73 UINT uNumItem; /* number of items (columns) */
74 INT nHeight; /* height of the header (pixels) */
75 HFONT hFont; /* handle to the current font */
76 HCURSOR hcurArrow; /* handle to the arrow cursor */
77 HCURSOR hcurDivider; /* handle to a cursor (used over dividers) <-|-> */
78 HCURSOR hcurDivopen; /* handle to a cursor (used over dividers) <-||-> */
79 BOOL bCaptured; /* Is the mouse captured? */
80 BOOL bPressed; /* Is a header item pressed (down)? */
81 BOOL bDragging; /* Are we dragging an item? */
82 BOOL bTracking; /* Is in tracking mode? */
83 POINT ptLButtonDown; /* The point where the left button was pressed */
84 INT iMoveItem; /* index of tracked item. (Tracking mode) */
85 INT xTrackOffset; /* distance between the right side of the tracked item and the cursor */
86 INT xOldTrack; /* track offset (see above) after the last WM_MOUSEMOVE */
87 INT nOldWidth; /* width of a sizing item after the last WM_MOUSEMOVE */
88 INT iHotItem; /* index of hot item (cursor is over this item) */
89 INT iHotDivider; /* index of the hot divider (used while dragging an item or by HDM_SETHOTDIVIDER) */
90 INT iMargin; /* width of the margin that surrounds a bitmap */
92 HIMAGELIST himl; /* handle to an image list (may be 0) */
93 HEADER_ITEM *items; /* pointer to array of HEADER_ITEM's */
94 INT *order; /* array of item IDs indexed by order */
95 BOOL bRectsValid; /* validity flag for bounding rectangles */
100 #define DIVIDER_WIDTH 10
101 #define HOT_DIVIDER_WIDTH 2
102 #define MAX_HEADER_TEXT_LEN 260
103 #define HDN_UNICODE_OFFSET 20
104 #define HDN_FIRST_UNICODE (HDN_FIRST-HDN_UNICODE_OFFSET)
106 #define HDI_SUPPORTED_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP|HDI_IMAGE|HDI_ORDER)
107 #define HDI_UNSUPPORTED_FIELDS (HDI_FILTER)
108 #define HDI_UNKNOWN_FIELDS (~(HDI_SUPPORTED_FIELDS|HDI_UNSUPPORTED_FIELDS|HDI_DI_SETITEM))
109 #define HDI_COMCTL32_4_0_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP)
111 #define HEADER_GetInfoPtr(hwnd) ((HEADER_INFO *)GetWindowLongPtrW(hwnd,0))
113 static BOOL HEADER_PrepareCallbackItems(HWND hwnd, INT iItem, INT reqMask);
114 static void HEADER_FreeCallbackItems(HEADER_ITEM *lpItem);
116 static const WCHAR themeClass[] = {'H','e','a','d','e','r',0};
117 static WCHAR emptyString[] = {0};
119 static void HEADER_DisposeItem(HEADER_ITEM *lpItem)
123 Free(lpItem->pszText);
127 static void HEADER_StoreHDItemInHeader(HEADER_ITEM *lpItem, UINT mask, HDITEMW *phdi, BOOL fUnicode)
129 if (mask & HDI_UNSUPPORTED_FIELDS)
130 FIXME("unsupported header fields %x\n", (mask & HDI_UNSUPPORTED_FIELDS));
132 if (mask & HDI_BITMAP)
133 lpItem->hbm = phdi->hbm;
135 if (mask & HDI_FORMAT)
136 lpItem->fmt = phdi->fmt;
138 if (mask & HDI_LPARAM)
139 lpItem->lParam = phdi->lParam;
141 if (mask & HDI_WIDTH)
142 lpItem->cxy = phdi->cxy;
144 if (mask & HDI_IMAGE)
146 lpItem->iImage = phdi->iImage;
147 if (phdi->iImage == I_IMAGECALLBACK)
148 lpItem->callbackMask |= HDI_IMAGE;
150 lpItem->callbackMask &= ~HDI_IMAGE;
157 Free(lpItem->pszText);
158 lpItem->pszText = NULL;
161 if (phdi->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */
163 LPWSTR pszText = (phdi->pszText != NULL ? phdi->pszText : emptyString);
165 Str_SetPtrW(&lpItem->pszText, pszText);
167 Str_SetPtrAtoW(&lpItem->pszText, (LPSTR)pszText);
168 lpItem->callbackMask &= ~HDI_TEXT;
172 lpItem->pszText = NULL;
173 lpItem->callbackMask |= HDI_TEXT;
178 inline static LRESULT
179 HEADER_IndexToOrder (HWND hwnd, INT iItem)
181 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
182 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
183 return lpItem->iOrder;
188 HEADER_OrderToIndex(HWND hwnd, WPARAM wParam)
190 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
191 INT iorder = (INT)wParam;
193 if ((iorder <0) || iorder >= infoPtr->uNumItem)
195 return infoPtr->order[iorder];
199 HEADER_ChangeItemOrder(HEADER_INFO *infoPtr, INT iItem, INT iNewOrder)
201 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
204 TRACE("%d: %d->%d\n", iItem, lpItem->iOrder, iNewOrder);
205 if (lpItem->iOrder < iNewOrder)
207 memmove(&infoPtr->order[lpItem->iOrder],
208 &infoPtr->order[lpItem->iOrder + 1],
209 (iNewOrder - lpItem->iOrder) * sizeof(INT));
211 if (iNewOrder < lpItem->iOrder)
213 memmove(&infoPtr->order[iNewOrder + 1],
214 &infoPtr->order[iNewOrder],
215 (lpItem->iOrder - iNewOrder) * sizeof(INT));
217 infoPtr->order[iNewOrder] = iItem;
218 nMin = min(lpItem->iOrder, iNewOrder);
219 nMax = max(lpItem->iOrder, iNewOrder);
220 for (i = nMin; i <= nMax; i++)
221 infoPtr->items[infoPtr->order[i]].iOrder = i;
224 /* Note: if iItem is the last item then this function returns infoPtr->uNumItem */
226 HEADER_NextItem(HWND hwnd, INT iItem)
228 return HEADER_OrderToIndex(hwnd, HEADER_IndexToOrder(hwnd, iItem)+1);
232 HEADER_PrevItem(HWND hwnd, INT iItem)
234 return HEADER_OrderToIndex(hwnd, HEADER_IndexToOrder(hwnd, iItem)-1);
238 HEADER_SetItemBounds (HWND hwnd)
240 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
246 infoPtr->bRectsValid = TRUE;
248 if (infoPtr->uNumItem == 0)
251 GetClientRect (hwnd, &rect);
254 for (i = 0; i < infoPtr->uNumItem; i++) {
255 phdi = &infoPtr->items[HEADER_OrderToIndex(hwnd,i)];
256 phdi->rect.top = rect.top;
257 phdi->rect.bottom = rect.bottom;
259 phdi->rect.right = phdi->rect.left + ((phdi->cxy>0)?phdi->cxy:0);
260 x = phdi->rect.right;
265 HEADER_Size (HWND hwnd, WPARAM wParam)
267 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
269 infoPtr->bRectsValid = FALSE;
274 static void HEADER_GetHotDividerRect(HWND hwnd, HEADER_INFO *infoPtr, RECT *r)
276 INT iDivider = infoPtr->iHotDivider;
277 if (infoPtr->uNumItem > 0)
281 if (iDivider < infoPtr->uNumItem)
283 lpItem = &infoPtr->items[iDivider];
284 r->left = lpItem->rect.left - HOT_DIVIDER_WIDTH/2;
285 r->right = lpItem->rect.left + HOT_DIVIDER_WIDTH/2;
289 lpItem = &infoPtr->items[HEADER_OrderToIndex(hwnd, infoPtr->uNumItem-1)];
290 r->left = lpItem->rect.right - HOT_DIVIDER_WIDTH/2;
291 r->right = lpItem->rect.right + HOT_DIVIDER_WIDTH/2;
293 r->top = lpItem->rect.top;
294 r->bottom = lpItem->rect.bottom;
299 GetClientRect(hwnd, &clientRect);
301 r->right = r->left + HOT_DIVIDER_WIDTH/2;
307 HEADER_DrawItem (HWND hwnd, HDC hdc, INT iItem, BOOL bHotTrack)
309 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
310 HEADER_ITEM *phdi = &infoPtr->items[iItem];
312 INT oldBkMode, cxEdge = GetSystemMetrics(SM_CXEDGE);
313 HTHEME theme = GetWindowTheme (hwnd);
316 TRACE("DrawItem(iItem %d bHotTrack %d unicode flag %d)\n", iItem, bHotTrack, (infoPtr->nNotifyFormat == NFR_UNICODE));
318 if (!infoPtr->bRectsValid)
319 HEADER_SetItemBounds(hwnd);
322 if (r.right - r.left == 0)
323 return phdi->rect.right;
326 int state = (phdi->bDown) ? HIS_PRESSED :
327 (bHotTrack ? HIS_HOT : HIS_NORMAL);
328 DrawThemeBackground (theme, hdc, HP_HEADERITEM, state,
330 GetThemeBackgroundContentRect (theme, hdc, HP_HEADERITEM, state,
334 if (GetWindowLongW (hwnd, GWL_STYLE) & HDS_BUTTONS) {
336 DrawEdge (hdc, &r, BDR_RAISEDOUTER,
337 BF_RECT | BF_FLAT | BF_MIDDLE | BF_ADJUST);
340 DrawEdge (hdc, &r, EDGE_RAISED,
341 BF_RECT | BF_SOFT | BF_MIDDLE | BF_ADJUST);
344 DrawEdge (hdc, &r, EDGE_ETCHED, BF_BOTTOM | BF_RIGHT | BF_ADJUST);
354 /* Set the colors before sending NM_CUSTOMDRAW so that it can change them */
355 SetTextColor (hdc, (bHotTrack && !theme) ? COLOR_HIGHLIGHT : COLOR_BTNTEXT);
356 SetBkColor(hdc, GetSysColor(COLOR_3DFACE));
358 nmcd.hdr.hwndFrom = hwnd;
359 nmcd.hdr.idFrom = GetWindowLongPtrW (hwnd, GWLP_ID);
360 nmcd.hdr.code = NM_CUSTOMDRAW;
361 nmcd.dwDrawStage = CDDS_PREPAINT | CDDS_ITEM | CDDS_ITEMPOSTERASE;
363 nmcd.dwItemSpec = iItem;
365 nmcd.uItemState = phdi->bDown ? CDIS_SELECTED : 0;
366 nmcd.lItemlParam = phdi->lParam;
368 SendMessageW (infoPtr->hwndNotify, WM_NOTIFY, nmcd.hdr.idFrom, (LPARAM)&nmcd);
370 if (phdi->fmt & HDF_OWNERDRAW) {
373 dis.CtlType = ODT_HEADER;
374 dis.CtlID = GetWindowLongPtrW (hwnd, GWLP_ID);
376 dis.itemAction = ODA_DRAWENTIRE;
377 dis.itemState = phdi->bDown ? ODS_SELECTED : 0;
381 dis.itemData = phdi->lParam;
382 oldBkMode = SetBkMode(hdc, TRANSPARENT);
383 SendMessageW (infoPtr->hwndNotify, WM_DRAWITEM,
384 (WPARAM)dis.CtlID, (LPARAM)&dis);
385 if (oldBkMode != TRANSPARENT)
386 SetBkMode(hdc, oldBkMode);
389 UINT rw, rh, /* width and height of r */
390 *x = NULL, *w = NULL; /* x and width of the pic (bmp or img) which is part of cnt */
391 /* cnt,txt,img,bmp */
396 HEADER_PrepareCallbackItems(hwnd, iItem, HDI_TEXT|HDI_IMAGE);
397 cw = tw = iw = bw = 0;
398 rw = r.right - r.left;
399 rh = r.bottom - r.top;
402 HBRUSH hbr = CreateSolidBrush(GetBkColor(hdc));
403 RECT rcBackground = r;
405 rcBackground.right -= cxEdge;
406 rcBackground.left += cxEdge;
407 FillRect(hdc, &rcBackground, hbr);
410 if (phdi->fmt & HDF_STRING) {
413 DrawTextW (hdc, phdi->pszText, -1,
414 &textRect, DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_CALCRECT);
415 cw = textRect.right - textRect.left + 2 * infoPtr->iMargin;
418 if ((phdi->fmt & HDF_IMAGE) && (infoPtr->himl)) {
419 iw = infoPtr->himl->cx + 2 * infoPtr->iMargin;
424 if ((phdi->fmt & HDF_BITMAP) && (phdi->hbm)) {
425 GetObjectW (phdi->hbm, sizeof(BITMAP), (LPVOID)&bmp);
426 bw = bmp.bmWidth + 2 * infoPtr->iMargin;
436 /* align cx using the unclipped cw */
437 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_LEFT)
439 else if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_CENTER)
440 cx = r.left + rw / 2 - cw / 2;
447 if (cx + cw > r.right)
450 tx = cx + infoPtr->iMargin;
451 /* since cw might have changed we have to recalculate tw */
452 tw = cw - infoPtr->iMargin * 2;
456 if (phdi->fmt & HDF_BITMAP_ON_RIGHT) {
457 /* put pic behind text */
458 *x = cx + tw + infoPtr->iMargin * 3;
460 *x = cx + infoPtr->iMargin;
461 /* move text behind pic */
467 /* since we're done with the layout we can
468 now calculate the position of bmp which
469 has no influence on alignment and layout
471 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_RIGHT)
472 bx = cx - bw + infoPtr->iMargin;
474 bx = cx + cw + infoPtr->iMargin;
478 HDC hClipDC = GetDC(hwnd);
479 HRGN hClipRgn = CreateRectRgn(r.left, r.top, r.right, r.bottom);
480 SelectClipRgn(hClipDC, hClipRgn);
483 HDC hdcBitmap = CreateCompatibleDC (hClipDC);
484 SelectObject (hdcBitmap, phdi->hbm);
485 BitBlt (hClipDC, bx, r.top + ((INT)rh - bmp.bmHeight) / 2,
486 bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY);
487 DeleteDC (hdcBitmap);
491 ImageList_DrawEx (infoPtr->himl, phdi->iImage, hClipDC,
492 ix, r.top + ((INT)rh - infoPtr->himl->cy) / 2,
493 infoPtr->himl->cx, infoPtr->himl->cy, CLR_DEFAULT, CLR_DEFAULT, 0);
496 DeleteObject(hClipRgn);
497 ReleaseDC(hwnd, hClipDC);
500 if (((phdi->fmt & HDF_STRING)
501 || (!(phdi->fmt & (HDF_OWNERDRAW|HDF_STRING|HDF_BITMAP|
502 HDF_BITMAP_ON_RIGHT|HDF_IMAGE)))) /* no explicit format specified? */
503 && (phdi->pszText)) {
504 oldBkMode = SetBkMode(hdc, TRANSPARENT);
507 DrawTextW (hdc, phdi->pszText, -1,
508 &r, DT_LEFT|DT_END_ELLIPSIS|DT_VCENTER|DT_SINGLELINE);
509 if (oldBkMode != TRANSPARENT)
510 SetBkMode(hdc, oldBkMode);
512 HEADER_FreeCallbackItems(phdi);
515 return phdi->rect.right;
519 HEADER_DrawHotDivider(HWND hwnd, HDC hdc)
521 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
525 HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
526 brush = CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT));
527 FillRect(hdc, &r, brush);
532 HEADER_Refresh (HWND hwnd, HDC hdc)
534 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
535 HFONT hFont, hOldFont;
540 HTHEME theme = GetWindowTheme (hwnd);
542 /* get rect for the bar, adjusted for the border */
543 GetClientRect (hwnd, &rect);
545 if (infoPtr->bDragging)
546 ImageList_DragShowNolock(FALSE);
548 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
549 hOldFont = SelectObject (hdc, hFont);
551 /* draw Background */
552 if (infoPtr->uNumItem == 0 && theme == NULL) {
553 hbrBk = GetSysColorBrush(COLOR_3DFACE);
554 FillRect(hdc, &rect, hbrBk);
558 for (i = 0; x <= rect.right && i < infoPtr->uNumItem; i++) {
559 int idx = HEADER_OrderToIndex(hwnd,i);
560 if (RectVisible(hdc, &infoPtr->items[idx].rect))
561 HEADER_DrawItem (hwnd, hdc, idx, infoPtr->iHotItem == i);
562 x = infoPtr->items[idx].rect.right;
565 if ((x <= rect.right) && (infoPtr->uNumItem > 0)) {
568 DrawThemeBackground (theme, hdc, HP_HEADERITEM, HIS_NORMAL, &rect,
572 if (GetWindowLongW (hwnd, GWL_STYLE) & HDS_BUTTONS)
573 DrawEdge (hdc, &rect, EDGE_RAISED, BF_TOP|BF_LEFT|BF_BOTTOM|BF_SOFT|BF_MIDDLE);
575 DrawEdge (hdc, &rect, EDGE_ETCHED, BF_BOTTOM|BF_MIDDLE);
579 if (infoPtr->iHotDivider != -1)
580 HEADER_DrawHotDivider(hwnd, hdc);
582 if (infoPtr->bDragging)
583 ImageList_DragShowNolock(TRUE);
584 SelectObject (hdc, hOldFont);
589 HEADER_RefreshItem (HWND hwnd, HDC hdc, INT iItem)
591 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
592 HFONT hFont, hOldFont;
594 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
595 hOldFont = SelectObject (hdc, hFont);
596 HEADER_DrawItem (hwnd, hdc, iItem, infoPtr->iHotItem == iItem);
597 SelectObject (hdc, hOldFont);
602 HEADER_InternalHitTest (HWND hwnd, LPPOINT lpPt, UINT *pFlags, INT *pItem)
604 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
610 GetClientRect (hwnd, &rect);
614 if (PtInRect (&rect, *lpPt))
616 if (infoPtr->uNumItem == 0) {
617 *pFlags |= HHT_NOWHERE;
623 /* somewhere inside */
624 for (iCount = 0; iCount < infoPtr->uNumItem; iCount++) {
625 rect = infoPtr->items[iCount].rect;
626 width = rect.right - rect.left;
631 if (PtInRect (&rect, *lpPt)) {
632 if (width <= 2 * DIVIDER_WIDTH) {
633 *pFlags |= HHT_ONHEADER;
635 TRACE("ON HEADER %d\n", iCount);
638 if (HEADER_IndexToOrder(hwnd, iCount) > 0) {
640 rcTest.right = rcTest.left + DIVIDER_WIDTH;
641 if (PtInRect (&rcTest, *lpPt)) {
643 *pFlags |= HHT_ONDIVOPEN;
644 *pItem = HEADER_PrevItem(hwnd, iCount);
645 TRACE("ON DIVOPEN %d\n", *pItem);
649 *pFlags |= HHT_ONDIVIDER;
650 *pItem = HEADER_PrevItem(hwnd, iCount);
651 TRACE("ON DIVIDER %d\n", *pItem);
657 rcTest.left = rcTest.right - DIVIDER_WIDTH;
658 if (PtInRect (&rcTest, *lpPt)) {
659 *pFlags |= HHT_ONDIVIDER;
661 TRACE("ON DIVIDER %d\n", *pItem);
665 *pFlags |= HHT_ONHEADER;
667 TRACE("ON HEADER %d\n", iCount);
672 /* check for last divider part (on nowhere) */
673 rect = infoPtr->items[infoPtr->uNumItem-1].rect;
674 rect.left = rect.right;
675 rect.right += DIVIDER_WIDTH;
676 if (PtInRect (&rect, *lpPt)) {
678 *pFlags |= HHT_ONDIVOPEN;
679 *pItem = infoPtr->uNumItem - 1;
680 TRACE("ON DIVOPEN %d\n", *pItem);
684 *pFlags |= HHT_ONDIVIDER;
685 *pItem = infoPtr->uNumItem-1;
686 TRACE("ON DIVIDER %d\n", *pItem);
691 *pFlags |= HHT_NOWHERE;
698 if (lpPt->x < rect.left) {
700 *pFlags |= HHT_TOLEFT;
702 else if (lpPt->x > rect.right) {
704 *pFlags |= HHT_TORIGHT;
707 if (lpPt->y < rect.top) {
709 *pFlags |= HHT_ABOVE;
711 else if (lpPt->y > rect.bottom) {
713 *pFlags |= HHT_BELOW;
718 TRACE("flags=0x%X\n", *pFlags);
724 HEADER_DrawTrackLine (HWND hwnd, HDC hdc, INT x)
730 GetClientRect (hwnd, &rect);
732 hOldPen = SelectObject (hdc, GetStockObject (BLACK_PEN));
733 oldRop = SetROP2 (hdc, R2_XORPEN);
734 MoveToEx (hdc, x, rect.top, NULL);
735 LineTo (hdc, x, rect.bottom);
736 SetROP2 (hdc, oldRop);
737 SelectObject (hdc, hOldPen);
742 * Convert a HDITEM into the correct format (ANSI/Unicode) to send it in a notify
745 * [I] infoPtr : the header that wants to send the notify
746 * [O] dest : The buffer to store the HDITEM for notify. It may be set to a HDITEMA of HDITEMW
747 * [I] src : The source HDITEM. It may be a HDITEMA or HDITEMW
748 * [I] fSourceUnicode : is src a HDITEMW or HDITEMA
749 * [O] ppvScratch : a pointer to a scratch buffer that needs to be freed after
750 * the HDITEM is no longer in use or NULL if none was needed
752 * NOTE: We depend on HDITEMA and HDITEMW having the same structure
754 static void HEADER_CopyHDItemForNotify(HEADER_INFO *infoPtr, HDITEMW *dest,
755 HDITEMW *src, BOOL fSourceUnicode, LPVOID *ppvScratch)
760 if (src->mask & HDI_TEXT && src->pszText != LPSTR_TEXTCALLBACKW) /* covers TEXTCALLBACKA as well */
762 if (fSourceUnicode && infoPtr->nNotifyFormat != NFR_UNICODE)
764 dest->pszText = NULL;
765 Str_SetPtrWtoA((LPSTR *)&dest->pszText, src->pszText);
766 *ppvScratch = dest->pszText;
769 if (!fSourceUnicode && infoPtr->nNotifyFormat == NFR_UNICODE)
771 dest->pszText = NULL;
772 Str_SetPtrAtoW(&dest->pszText, (LPSTR)src->pszText);
773 *ppvScratch = dest->pszText;
778 static UINT HEADER_NotifyCodeWtoA(UINT code)
780 /* we use the fact that all the unicode messages are in HDN_FIRST_UNICODE..HDN_LAST*/
781 if (code >= HDN_LAST && code <= HDN_FIRST_UNICODE)
782 return code + HDN_UNICODE_OFFSET;
788 HEADER_SendSimpleNotify (HWND hwnd, UINT code)
790 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
793 nmhdr.hwndFrom = hwnd;
794 nmhdr.idFrom = GetWindowLongPtrW (hwnd, GWLP_ID);
797 return (BOOL)SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
798 (WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
802 HEADER_SendHeaderNotifyT (HWND hwnd, UINT code, INT iItem, INT mask, HDITEMW *lpItem)
804 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
810 /* lpItem == NULL means that we should take the actual data from the item */
813 FIXME("(): invalid parameters - lpItem == NULL and (mask & HDI_TEXT)\n");
817 nmitem.cxy = infoPtr->items[iItem].cxy;
818 nmitem.hbm = infoPtr->items[iItem].hbm;
819 nmitem.pszText = NULL;
820 nmitem.cchTextMax = 0;
821 nmitem.fmt = infoPtr->items[iItem].fmt;
822 nmitem.lParam = infoPtr->items[iItem].lParam;
823 nmitem.iOrder = infoPtr->items[iItem].iOrder;
824 nmitem.iImage = infoPtr->items[iItem].iImage;
828 nmhdr.hdr.hwndFrom = hwnd;
829 nmhdr.hdr.idFrom = GetWindowLongPtrW (hwnd, GWLP_ID);
830 nmhdr.hdr.code = (infoPtr->nNotifyFormat == NFR_UNICODE ? code : HEADER_NotifyCodeWtoA(code));
833 nmhdr.pitem = lpItem;
835 return (BOOL)SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
836 (WPARAM)nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
840 * Prepare callback items
841 * depends on NMHDDISPINFOW having same structure as NMHDDISPINFOA
842 * (so we handle the two cases only doing a specific cast for pszText).
843 * Checks if any of the required field are callback. If there are sends a
844 * NMHDISPINFO notify to retrieve these items. The items are stored in the
845 * HEADER_ITEM pszText and iImage fields. They should be freed with
846 * HEADER_FreeCallbackItems.
848 * @param hwnd : hwnd header container handler
849 * @param iItem : the header item id
850 * @param reqMask : required fields. If any of them is callback this function will fetch it
852 * @return TRUE on success, else FALSE
855 HEADER_PrepareCallbackItems(HWND hwnd, INT iItem, INT reqMask)
857 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
858 HEADER_ITEM *lpItem = &infoPtr->items[iItem];
859 DWORD mask = reqMask & lpItem->callbackMask;
860 NMHDDISPINFOW dispInfo;
861 void *pvBuffer = NULL;
865 if (mask&HDI_TEXT && lpItem->pszText != NULL)
867 ERR("(): function called without a call to FreeCallbackItems\n");
868 Free(lpItem->pszText);
869 lpItem->pszText = NULL;
872 memset(&dispInfo, 0, sizeof(NMHDDISPINFOW));
873 dispInfo.hdr.hwndFrom = hwnd;
874 dispInfo.hdr.idFrom = GetWindowLongPtrW (hwnd, GWLP_ID);
875 if (infoPtr->nNotifyFormat == NFR_UNICODE)
877 dispInfo.hdr.code = HDN_GETDISPINFOW;
879 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(WCHAR));
883 dispInfo.hdr.code = HDN_GETDISPINFOA;
885 pvBuffer = Alloc(MAX_HEADER_TEXT_LEN * sizeof(CHAR));
887 dispInfo.pszText = (LPWSTR)pvBuffer;
888 dispInfo.cchTextMax = (pvBuffer!=NULL?MAX_HEADER_TEXT_LEN:0);
889 dispInfo.iItem = iItem;
890 dispInfo.mask = mask;
891 dispInfo.lParam = lpItem->lParam;
893 TRACE("Sending HDN_GETDISPINFO%c\n", infoPtr->nNotifyFormat == NFR_UNICODE?'W':'A');
894 SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
895 (WPARAM) dispInfo.hdr.idFrom,
898 TRACE("SendMessage returns(mask:0x%x,str:%s,lParam:%p)\n",
900 (infoPtr->nNotifyFormat == NFR_UNICODE ? debugstr_w(dispInfo.pszText) : (LPSTR) dispInfo.pszText),
901 (void*) dispInfo.lParam);
903 if (mask & HDI_IMAGE)
904 lpItem->iImage = dispInfo.iImage;
907 if (infoPtr->nNotifyFormat == NFR_UNICODE)
909 lpItem->pszText = (LPWSTR)pvBuffer;
911 /* the user might have used his own buffer */
912 if (dispInfo.pszText != lpItem->pszText)
913 Str_GetPtrW(dispInfo.pszText, lpItem->pszText, MAX_HEADER_TEXT_LEN);
917 Str_SetPtrAtoW(&lpItem->pszText, (LPSTR)dispInfo.pszText);
922 if (dispInfo.mask & HDI_DI_SETITEM)
924 /* make the items permanent */
925 lpItem->callbackMask &= ~dispInfo.mask;
933 * Free the items that might be allocated with HEADER_PrepareCallbackItems
936 * [I] lpItem : the item to free the data
940 HEADER_FreeCallbackItems(HEADER_ITEM *lpItem)
942 if (lpItem->callbackMask&HDI_TEXT && lpItem->pszText != NULL)
944 Free(lpItem->pszText);
945 lpItem->pszText = NULL;
948 if (lpItem->callbackMask&HDI_IMAGE)
949 lpItem->iImage = I_IMAGECALLBACK;
953 HEADER_SendClickNotify (HWND hwnd, UINT code, INT iItem)
955 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
958 nmhdr.hdr.hwndFrom = hwnd;
959 nmhdr.hdr.idFrom = GetWindowLongPtrW (hwnd, GWLP_ID);
960 nmhdr.hdr.code = code;
965 return (BOOL)SendMessageA (infoPtr->hwndNotify, WM_NOTIFY,
966 (WPARAM)nmhdr.hdr.idFrom, (LPARAM)&nmhdr);
970 HEADER_CreateDragImage (HWND hwnd, WPARAM wParam)
972 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
975 HBITMAP hMemory, hOldBitmap;
980 if (wParam < 0 || wParam >= infoPtr->uNumItem)
982 lpItem = &infoPtr->items[wParam];
983 width = lpItem->rect.right - lpItem->rect.left;
984 height = lpItem->rect.bottom - lpItem->rect.top;
986 hDeviceDC = GetDC(NULL);
987 hMemoryDC = CreateCompatibleDC(hDeviceDC);
988 hMemory = CreateCompatibleBitmap(hDeviceDC, width, height);
989 ReleaseDC(NULL, hDeviceDC);
990 hOldBitmap = SelectObject(hMemoryDC, hMemory);
991 SetViewportOrgEx(hMemoryDC, -lpItem->rect.left, -lpItem->rect.top, NULL);
992 HEADER_DrawItem(hwnd, hMemoryDC, wParam, FALSE);
993 hMemory = SelectObject(hMemoryDC, hOldBitmap);
996 if (hMemory == NULL) /* if anything failed */
999 himl = ImageList_Create(width, height, ILC_COLORDDB, 1, 1);
1000 ImageList_Add(himl, hMemory, NULL);
1001 DeleteObject(hMemory);
1002 return (LRESULT)himl;
1006 HEADER_SetHotDivider(HWND hwnd, WPARAM wParam, LPARAM lParam)
1008 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
1016 pt.x = (INT)(SHORT)LOWORD(lParam);
1018 HEADER_InternalHitTest (hwnd, &pt, &flags, &iDivider);
1020 if (flags & HHT_TOLEFT)
1022 else if (flags & HHT_NOWHERE || flags & HHT_TORIGHT)
1023 iDivider = infoPtr->uNumItem;
1026 HEADER_ITEM *lpItem = &infoPtr->items[iDivider];
1027 if (pt.x > (lpItem->rect.left+lpItem->rect.right)/2)
1028 iDivider = HEADER_NextItem(hwnd, iDivider);
1032 iDivider = (INT)lParam;
1034 /* Note; wParam==FALSE, lParam==-1 is valid and is used to clear the hot divider */
1035 if (iDivider<-1 || iDivider>(int)infoPtr->uNumItem)
1038 if (iDivider != infoPtr->iHotDivider)
1040 if (infoPtr->iHotDivider != -1)
1042 HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
1043 InvalidateRect(hwnd, &r, FALSE);
1045 infoPtr->iHotDivider = iDivider;
1048 HEADER_GetHotDividerRect(hwnd, infoPtr, &r);
1049 InvalidateRect(hwnd, &r, FALSE);
1056 HEADER_DeleteItem (HWND hwnd, WPARAM wParam)
1058 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
1059 INT iItem = (INT)wParam;
1061 TRACE("[iItem=%d]\n", iItem);
1063 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1066 if (infoPtr->uNumItem == 1) {
1067 TRACE("Simple delete!\n");
1068 HEADER_DisposeItem(&infoPtr->items[0]);
1069 Free (infoPtr->items);
1070 Free(infoPtr->order);
1073 infoPtr->uNumItem = 0;
1076 HEADER_ITEM *oldItems = infoPtr->items;
1079 TRACE("Complex delete! [iItem=%d]\n", iItem);
1081 for (i = 0; i < infoPtr->uNumItem; i++)
1082 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1083 HEADER_DisposeItem(&infoPtr->items[iItem]);
1084 iOrder = infoPtr->items[iItem].iOrder;
1086 infoPtr->uNumItem--;
1087 infoPtr->items = Alloc (sizeof (HEADER_ITEM) * infoPtr->uNumItem);
1088 /* pre delete copy */
1090 memcpy (&infoPtr->items[0], &oldItems[0],
1091 iItem * sizeof(HEADER_ITEM));
1094 /* post delete copy */
1095 if (iItem < infoPtr->uNumItem) {
1096 memcpy (&infoPtr->items[iItem], &oldItems[iItem+1],
1097 (infoPtr->uNumItem - iItem) * sizeof(HEADER_ITEM));
1100 /* Correct the orders */
1101 if (iOrder < infoPtr->uNumItem)
1103 memmove(&infoPtr->order[iOrder], &infoPtr->order[iOrder + 1],
1104 (infoPtr->uNumItem - iOrder) * sizeof(INT));
1105 for (i = 0; i < infoPtr->uNumItem; i++)
1107 if (infoPtr->order[i] > iItem)
1108 infoPtr->order[i]--;
1110 infoPtr->items[infoPtr->order[i]].iOrder = infoPtr->order[i];
1114 for (i = 0; i < infoPtr->uNumItem; i++)
1115 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder);
1119 HEADER_SetItemBounds (hwnd);
1121 InvalidateRect(hwnd, NULL, FALSE);
1128 HEADER_GetImageList (HWND hwnd)
1130 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1132 return (LRESULT)infoPtr->himl;
1137 HEADER_GetItemT (HWND hwnd, INT nItem, LPHDITEMW phdi, BOOL bUnicode)
1139 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1140 HEADER_ITEM *lpItem;
1141 UINT mask = phdi->mask;
1146 TRACE("[nItem=%d]\n", nItem);
1150 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1153 if (mask & HDI_UNKNOWN_FIELDS)
1155 TRACE("mask %x contains unknown fields. Using only comctl32 4.0 fields\n", mask);
1156 mask &= HDI_COMCTL32_4_0_FIELDS;
1159 lpItem = &infoPtr->items[nItem];
1160 HEADER_PrepareCallbackItems(hwnd, nItem, mask);
1162 if (mask & HDI_BITMAP)
1163 phdi->hbm = lpItem->hbm;
1165 if (mask & HDI_FORMAT)
1166 phdi->fmt = lpItem->fmt;
1168 if (mask & HDI_WIDTH)
1169 phdi->cxy = lpItem->cxy;
1171 if (mask & HDI_LPARAM)
1172 phdi->lParam = lpItem->lParam;
1174 if (mask & HDI_IMAGE)
1175 phdi->iImage = lpItem->iImage;
1177 if (mask & HDI_ORDER)
1178 phdi->iOrder = lpItem->iOrder;
1180 if (mask & HDI_TEXT)
1183 Str_GetPtrW (lpItem->pszText, phdi->pszText, phdi->cchTextMax);
1185 Str_GetPtrWtoA (lpItem->pszText, (LPSTR)phdi->pszText, phdi->cchTextMax);
1188 HEADER_FreeCallbackItems(lpItem);
1193 inline static LRESULT
1194 HEADER_GetItemCount (HWND hwnd)
1196 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1197 return infoPtr->uNumItem;
1202 HEADER_GetItemRect (HWND hwnd, WPARAM wParam, LPARAM lParam)
1204 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1205 INT iItem = (INT)wParam;
1206 LPRECT lpRect = (LPRECT)lParam;
1208 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem))
1211 lpRect->left = infoPtr->items[iItem].rect.left;
1212 lpRect->right = infoPtr->items[iItem].rect.right;
1213 lpRect->top = infoPtr->items[iItem].rect.top;
1214 lpRect->bottom = infoPtr->items[iItem].rect.bottom;
1221 HEADER_GetOrderArray(HWND hwnd, WPARAM wParam, LPARAM lParam)
1223 LPINT order = (LPINT) lParam;
1224 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1226 if ((unsigned int)wParam <infoPtr->uNumItem)
1229 memcpy(order, infoPtr->order, infoPtr->uNumItem * sizeof(INT));
1234 HEADER_SetOrderArray(HWND hwnd, WPARAM wParam, LPARAM lParam)
1237 LPINT order = (LPINT) lParam;
1238 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1239 HEADER_ITEM *lpItem;
1241 if ((unsigned int)wParam <infoPtr->uNumItem)
1243 memcpy(infoPtr->order, order, infoPtr->uNumItem * sizeof(INT));
1244 for (i=0; i<(int)wParam; i++)
1246 lpItem = &infoPtr->items[*order++];
1249 infoPtr->bRectsValid=0;
1250 InvalidateRect(hwnd, NULL, FALSE);
1254 inline static LRESULT
1255 HEADER_GetUnicodeFormat (HWND hwnd)
1257 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1258 return (infoPtr->nNotifyFormat == NFR_UNICODE);
1263 HEADER_HitTest (HWND hwnd, WPARAM wParam, LPARAM lParam)
1265 LPHDHITTESTINFO phti = (LPHDHITTESTINFO)lParam;
1267 HEADER_InternalHitTest (hwnd, &phti->pt, &phti->flags, &phti->iItem);
1269 if (phti->flags == HHT_NOWHERE)
1277 HEADER_InsertItemT (HWND hwnd, INT nItem, LPHDITEMW phdi, BOOL bUnicode)
1279 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1280 HEADER_ITEM *lpItem;
1285 if ((phdi == NULL) || (nItem < 0) || (phdi->mask == 0))
1288 if (nItem > infoPtr->uNumItem)
1289 nItem = infoPtr->uNumItem;
1291 iOrder = (phdi->mask & HDI_ORDER) ? phdi->iOrder : nItem;
1294 else if (infoPtr->uNumItem < iOrder)
1295 iOrder = infoPtr->uNumItem;
1297 if (infoPtr->uNumItem == 0) {
1298 infoPtr->items = Alloc (sizeof (HEADER_ITEM));
1299 infoPtr->order = Alloc(sizeof(INT));
1300 infoPtr->uNumItem++;
1303 HEADER_ITEM *oldItems = infoPtr->items;
1304 INT *oldOrder = infoPtr->order;
1306 infoPtr->uNumItem++;
1307 infoPtr->items = Alloc (sizeof (HEADER_ITEM) * infoPtr->uNumItem);
1309 memcpy (&infoPtr->items[1], &oldItems[0],
1310 (infoPtr->uNumItem-1) * sizeof(HEADER_ITEM));
1314 /* pre insert copy */
1316 memcpy (&infoPtr->items[0], &oldItems[0],
1317 nItem * sizeof(HEADER_ITEM));
1320 /* post insert copy */
1321 if (nItem < infoPtr->uNumItem - 1) {
1322 memcpy (&infoPtr->items[nItem+1], &oldItems[nItem],
1323 (infoPtr->uNumItem - nItem - 1) * sizeof(HEADER_ITEM));
1327 infoPtr->order = Alloc(sizeof(INT) * infoPtr->uNumItem);
1328 memcpy(infoPtr->order, oldOrder, iOrder * sizeof(INT));
1329 infoPtr->order[iOrder] = nItem;
1330 memcpy(&infoPtr->order[iOrder + 1], &oldOrder[iOrder],
1331 (infoPtr->uNumItem - iOrder - 1) * sizeof(INT));
1337 for (i = 0; i < infoPtr->uNumItem; i++)
1339 if (i != iOrder && infoPtr->order[i] >= nItem)
1340 infoPtr->order[i]++;
1341 infoPtr->items[infoPtr->order[i]].iOrder = infoPtr->order[i];
1344 lpItem = &infoPtr->items[nItem];
1345 ZeroMemory(lpItem, sizeof(HEADER_ITEM));
1346 /* cxy, fmt and lParam are copied even if not in the HDITEM mask */
1347 copyMask = phdi->mask | HDI_WIDTH | HDI_FORMAT | HDI_LPARAM;
1348 HEADER_StoreHDItemInHeader(lpItem, copyMask, phdi, bUnicode);
1350 /* set automatically some format bits */
1351 if (phdi->mask & HDI_TEXT)
1352 lpItem->fmt |= HDF_STRING;
1354 lpItem->fmt &= ~HDF_STRING;
1356 if (lpItem->hbm != NULL)
1357 lpItem->fmt |= HDF_BITMAP;
1359 lpItem->fmt &= ~HDF_BITMAP;
1361 if (phdi->mask & HDI_IMAGE)
1362 lpItem->fmt |= HDF_IMAGE;
1364 lpItem->iOrder = iOrder;
1366 HEADER_SetItemBounds (hwnd);
1368 InvalidateRect(hwnd, NULL, FALSE);
1375 HEADER_Layout (HWND hwnd, WPARAM wParam, LPARAM lParam)
1377 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1378 LPHDLAYOUT lpLayout = (LPHDLAYOUT)lParam;
1380 lpLayout->pwpos->hwnd = hwnd;
1381 lpLayout->pwpos->hwndInsertAfter = 0;
1382 lpLayout->pwpos->x = lpLayout->prc->left;
1383 lpLayout->pwpos->y = lpLayout->prc->top;
1384 lpLayout->pwpos->cx = lpLayout->prc->right - lpLayout->prc->left;
1385 if (GetWindowLongW (hwnd, GWL_STYLE) & HDS_HIDDEN)
1386 lpLayout->pwpos->cy = 0;
1388 lpLayout->pwpos->cy = infoPtr->nHeight;
1389 lpLayout->prc->top += infoPtr->nHeight;
1391 lpLayout->pwpos->flags = SWP_NOZORDER;
1393 TRACE("Layout x=%d y=%d cx=%d cy=%d\n",
1394 lpLayout->pwpos->x, lpLayout->pwpos->y,
1395 lpLayout->pwpos->cx, lpLayout->pwpos->cy);
1397 infoPtr->bRectsValid = FALSE;
1404 HEADER_SetImageList (HWND hwnd, HIMAGELIST himl)
1406 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1409 TRACE("(himl %p)\n", himl);
1410 himlOld = infoPtr->himl;
1411 infoPtr->himl = himl;
1413 /* FIXME: Refresh needed??? */
1415 return (LRESULT)himlOld;
1420 HEADER_GetBitmapMargin(HWND hwnd)
1422 HEADER_INFO *infoPtr = HEADER_GetInfoPtr(hwnd);
1424 return infoPtr->iMargin;
1428 HEADER_SetBitmapMargin(HWND hwnd, WPARAM wParam)
1430 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1431 INT oldMargin = infoPtr->iMargin;
1433 infoPtr->iMargin = (INT)wParam;
1439 HEADER_SetItemT (HWND hwnd, INT nItem, LPHDITEMW phdi, BOOL bUnicode)
1441 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1442 HEADER_ITEM *lpItem;
1448 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem))
1451 TRACE("[nItem=%d]\n", nItem);
1453 HEADER_CopyHDItemForNotify(infoPtr, &hdNotify, phdi, bUnicode, &pvScratch);
1454 if (HEADER_SendHeaderNotifyT (hwnd, HDN_ITEMCHANGINGW, nItem, phdi->mask, &hdNotify))
1456 if (pvScratch) Free(pvScratch);
1460 lpItem = &infoPtr->items[nItem];
1461 HEADER_StoreHDItemInHeader(lpItem, phdi->mask, phdi, bUnicode);
1463 /* FIXME: check it order is not out of bound */
1464 if (phdi->mask & HDI_ORDER)
1465 HEADER_ChangeItemOrder(infoPtr, nItem, phdi->iOrder);
1467 HEADER_SendHeaderNotifyT (hwnd, HDN_ITEMCHANGEDW, nItem, phdi->mask, &hdNotify);
1469 HEADER_SetItemBounds (hwnd);
1471 InvalidateRect(hwnd, NULL, FALSE);
1473 if (pvScratch != NULL)
1478 inline static LRESULT
1479 HEADER_SetUnicodeFormat (HWND hwnd, WPARAM wParam)
1481 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1482 BOOL bTemp = (infoPtr->nNotifyFormat == NFR_UNICODE);
1484 infoPtr->nNotifyFormat = ((BOOL)wParam ? NFR_UNICODE : NFR_ANSI);
1491 HEADER_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
1493 HEADER_INFO *infoPtr;
1498 infoPtr = (HEADER_INFO *)Alloc (sizeof(HEADER_INFO));
1499 SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
1501 infoPtr->hwndNotify = ((LPCREATESTRUCTA)lParam)->hwndParent;
1502 infoPtr->uNumItem = 0;
1506 infoPtr->bRectsValid = FALSE;
1507 infoPtr->hcurArrow = LoadCursorW (0, (LPWSTR)IDC_ARROW);
1508 infoPtr->hcurDivider = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDER));
1509 infoPtr->hcurDivopen = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDEROPEN));
1510 infoPtr->bPressed = FALSE;
1511 infoPtr->bTracking = FALSE;
1512 infoPtr->iMoveItem = 0;
1514 infoPtr->iHotItem = -1;
1515 infoPtr->iHotDivider = -1;
1516 infoPtr->iMargin = 3*GetSystemMetrics(SM_CXEDGE);
1517 infoPtr->nNotifyFormat =
1518 SendMessageW (infoPtr->hwndNotify, WM_NOTIFYFORMAT, (WPARAM)hwnd, NF_QUERY);
1521 hOldFont = SelectObject (hdc, GetStockObject (SYSTEM_FONT));
1522 GetTextMetricsW (hdc, &tm);
1523 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
1524 SelectObject (hdc, hOldFont);
1527 OpenThemeData(hwnd, themeClass);
1534 HEADER_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
1536 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1537 HEADER_ITEM *lpItem;
1541 if (infoPtr->items) {
1542 lpItem = infoPtr->items;
1543 for (nItem = 0; nItem < infoPtr->uNumItem; nItem++, lpItem++) {
1544 HEADER_DisposeItem(lpItem);
1546 Free (infoPtr->items);
1550 Free(infoPtr->order);
1553 ImageList_Destroy (infoPtr->himl);
1555 SetWindowLongPtrW (hwnd, 0, 0);
1558 theme = GetWindowTheme(hwnd);
1559 CloseThemeData(theme);
1564 static inline LRESULT
1565 HEADER_GetFont (HWND hwnd)
1567 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1569 return (LRESULT)infoPtr->hFont;
1574 HEADER_IsDragDistance(HEADER_INFO *infoPtr, POINT *pt)
1576 /* Windows allows for a mouse movement before starting the drag. We use the
1577 * SM_CXDOUBLECLICK/SM_CYDOUBLECLICK as that distance.
1579 return (abs(infoPtr->ptLButtonDown.x - pt->x)>GetSystemMetrics(SM_CXDOUBLECLK) ||
1580 abs(infoPtr->ptLButtonDown.y - pt->y)>GetSystemMetrics(SM_CYDOUBLECLK));
1584 HEADER_LButtonDblClk (HWND hwnd, WPARAM wParam, LPARAM lParam)
1590 pt.x = (INT)LOWORD(lParam);
1591 pt.y = (INT)HIWORD(lParam);
1592 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1594 if ((GetWindowLongW (hwnd, GWL_STYLE) & HDS_BUTTONS) && (flags == HHT_ONHEADER))
1595 HEADER_SendHeaderNotifyT (hwnd, HDN_ITEMDBLCLICKW, nItem, 0, NULL);
1596 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN))
1597 HEADER_SendHeaderNotifyT (hwnd, HDN_DIVIDERDBLCLICKW, nItem, 0, NULL);
1604 HEADER_LButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
1606 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1607 DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
1613 pt.x = (INT)LOWORD(lParam);
1614 pt.y = (INT)HIWORD(lParam);
1615 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1617 if ((dwStyle & HDS_BUTTONS) && (flags == HHT_ONHEADER)) {
1619 infoPtr->bCaptured = TRUE;
1620 infoPtr->bPressed = TRUE;
1621 infoPtr->bDragging = FALSE;
1622 infoPtr->iMoveItem = nItem;
1623 infoPtr->ptLButtonDown = pt;
1625 infoPtr->items[nItem].bDown = TRUE;
1627 /* Send WM_CUSTOMDRAW */
1629 HEADER_RefreshItem (hwnd, hdc, nItem);
1630 ReleaseDC (hwnd, hdc);
1632 TRACE("Pressed item %d!\n", nItem);
1634 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN)) {
1635 if (!(HEADER_SendHeaderNotifyT (hwnd, HDN_BEGINTRACKW, nItem, HDI_WIDTH, NULL))) {
1637 infoPtr->bCaptured = TRUE;
1638 infoPtr->bTracking = TRUE;
1639 infoPtr->iMoveItem = nItem;
1640 infoPtr->nOldWidth = infoPtr->items[nItem].cxy;
1641 infoPtr->xTrackOffset = infoPtr->items[nItem].rect.right - pt.x;
1643 if (!(dwStyle & HDS_FULLDRAG)) {
1644 infoPtr->xOldTrack = infoPtr->items[nItem].rect.right;
1646 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1647 ReleaseDC (hwnd, hdc);
1650 TRACE("Begin tracking item %d!\n", nItem);
1659 HEADER_LButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
1661 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1662 DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
1668 pt.x = (INT)(SHORT)LOWORD(lParam);
1669 pt.y = (INT)(SHORT)HIWORD(lParam);
1670 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1672 if (infoPtr->bPressed) {
1673 if (infoPtr->bDragging)
1675 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1678 ImageList_DragShowNolock(FALSE);
1679 ImageList_EndDrag();
1680 lpItem->bDown=FALSE;
1682 if (infoPtr->iHotDivider == -1)
1684 else if (infoPtr->iHotDivider == infoPtr->uNumItem)
1685 iNewOrder = infoPtr->uNumItem-1;
1688 iNewOrder = HEADER_IndexToOrder(hwnd, infoPtr->iHotDivider);
1689 if (iNewOrder > lpItem->iOrder)
1693 /* FIXME: the new order field should be sent, not the old one */
1694 if (iNewOrder != -1 &&
1695 !HEADER_SendHeaderNotifyT(hwnd, HDN_ENDDRAG, infoPtr->iMoveItem, HDI_ORDER, NULL))
1697 HEADER_ChangeItemOrder(infoPtr, infoPtr->iMoveItem, iNewOrder);
1698 infoPtr->bRectsValid = FALSE;
1699 InvalidateRect(hwnd, NULL, FALSE);
1702 InvalidateRect(hwnd, &infoPtr->items[infoPtr->iMoveItem].rect, FALSE);
1704 HEADER_SetHotDivider(hwnd, FALSE, -1);
1706 else if (!(dwStyle&HDS_DRAGDROP) || !HEADER_IsDragDistance(infoPtr, &pt))
1708 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1710 HEADER_RefreshItem (hwnd, hdc, infoPtr->iMoveItem);
1711 ReleaseDC (hwnd, hdc);
1713 HEADER_SendClickNotify (hwnd, HDN_ITEMCLICKA, infoPtr->iMoveItem);
1716 TRACE("Released item %d!\n", infoPtr->iMoveItem);
1717 infoPtr->bPressed = FALSE;
1719 else if (infoPtr->bTracking) {
1720 TRACE("End tracking item %d!\n", infoPtr->iMoveItem);
1721 infoPtr->bTracking = FALSE;
1723 HEADER_SendHeaderNotifyT (hwnd, HDN_ENDTRACKW, infoPtr->iMoveItem, HDI_WIDTH, NULL);
1725 if (!(dwStyle & HDS_FULLDRAG)) {
1727 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1728 ReleaseDC (hwnd, hdc);
1731 if (HEADER_SendHeaderNotifyT(hwnd, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, NULL))
1733 infoPtr->items[infoPtr->iMoveItem].cxy = infoPtr->nOldWidth;
1736 nWidth = pt.x - infoPtr->items[infoPtr->iMoveItem].rect.left + infoPtr->xTrackOffset;
1739 infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
1742 HEADER_SetItemBounds (hwnd);
1743 InvalidateRect(hwnd, NULL, TRUE);
1744 HEADER_SendHeaderNotifyT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, NULL);
1747 if (infoPtr->bCaptured) {
1748 infoPtr->bCaptured = FALSE;
1750 HEADER_SendSimpleNotify (hwnd, NM_RELEASEDCAPTURE);
1758 HEADER_NotifyFormat (HWND hwnd, WPARAM wParam, LPARAM lParam)
1760 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1765 return infoPtr->nNotifyFormat;
1768 infoPtr->nNotifyFormat =
1769 SendMessageW ((HWND)wParam, WM_NOTIFYFORMAT,
1770 (WPARAM)hwnd, (LPARAM)NF_QUERY);
1771 return infoPtr->nNotifyFormat;
1778 HEADER_MouseLeave (HWND hwnd, WPARAM wParam, LPARAM lParam)
1780 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1781 /* Reset hot-tracked item when mouse leaves control. */
1782 INT oldHotItem = infoPtr->iHotItem;
1783 HDC hdc = GetDC (hwnd);
1785 infoPtr->iHotItem = -1;
1786 if (oldHotItem != -1) HEADER_RefreshItem (hwnd, hdc, oldHotItem);
1787 ReleaseDC (hwnd, hdc);
1794 HEADER_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
1796 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1797 DWORD dwStyle = GetWindowLongW (hwnd, GWL_STYLE);
1802 /* With theming, hottracking is always enabled */
1803 BOOL hotTrackEnabled =
1804 ((dwStyle & HDS_BUTTONS) && (dwStyle & HDS_HOTTRACK))
1805 || (GetWindowTheme (hwnd) != NULL);
1806 INT oldHotItem = infoPtr->iHotItem;
1808 pt.x = (INT)(SHORT)LOWORD(lParam);
1809 pt.y = (INT)(SHORT)HIWORD(lParam);
1810 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1812 if (hotTrackEnabled) {
1813 if (flags & (HHT_ONHEADER | HHT_ONDIVIDER | HHT_ONDIVOPEN))
1814 infoPtr->iHotItem = nItem;
1816 infoPtr->iHotItem = -1;
1819 if (infoPtr->bCaptured) {
1820 /* check if we should drag the header */
1821 if (infoPtr->bPressed && !infoPtr->bDragging && dwStyle&HDS_DRAGDROP
1822 && HEADER_IsDragDistance(infoPtr, &pt))
1824 if (!HEADER_SendHeaderNotifyT(hwnd, HDN_BEGINDRAG, infoPtr->iMoveItem, 0, NULL))
1826 HIMAGELIST hDragItem = (HIMAGELIST)HEADER_CreateDragImage(hwnd, infoPtr->iMoveItem);
1827 if (hDragItem != NULL)
1829 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1830 TRACE("Starting item drag\n");
1831 ImageList_BeginDrag(hDragItem, 0, pt.x - lpItem->rect.left, 0);
1832 ImageList_DragShowNolock(TRUE);
1833 ImageList_Destroy(hDragItem);
1834 infoPtr->bDragging = TRUE;
1839 if (infoPtr->bDragging)
1844 ClientToScreen(hwnd, &drag);
1845 ImageList_DragMove(drag.x, drag.y);
1846 HEADER_SetHotDivider(hwnd, TRUE, lParam);
1849 if (infoPtr->bPressed && !infoPtr->bDragging) {
1850 BOOL oldState = infoPtr->items[infoPtr->iMoveItem].bDown;
1851 if ((nItem == infoPtr->iMoveItem) && (flags == HHT_ONHEADER))
1852 infoPtr->items[infoPtr->iMoveItem].bDown = TRUE;
1854 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE;
1855 if (oldState != infoPtr->items[infoPtr->iMoveItem].bDown) {
1857 HEADER_RefreshItem (hwnd, hdc, infoPtr->iMoveItem);
1858 ReleaseDC (hwnd, hdc);
1861 TRACE("Moving pressed item %d!\n", infoPtr->iMoveItem);
1863 else if (infoPtr->bTracking) {
1864 if (dwStyle & HDS_FULLDRAG) {
1865 if (!HEADER_SendHeaderNotifyT (hwnd, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, NULL))
1867 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem];
1868 INT nOldWidth = lpItem->rect.right - lpItem->rect.left;
1872 nWidth = pt.x - lpItem->rect.left + infoPtr->xTrackOffset;
1873 if (nWidth < 0) nWidth = 0;
1874 infoPtr->items[infoPtr->iMoveItem].cxy = nWidth;
1875 HEADER_SetItemBounds(hwnd);
1877 GetClientRect(hwnd, &rcClient);
1878 rcScroll = rcClient;
1879 rcScroll.left = lpItem->rect.left + nOldWidth;
1880 ScrollWindowEx(hwnd, nWidth - nOldWidth, 0, &rcScroll, &rcClient, NULL, NULL, 0);
1881 InvalidateRect(hwnd, &lpItem->rect, FALSE);
1884 HEADER_SendHeaderNotifyT(hwnd, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, NULL);
1889 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1890 infoPtr->xOldTrack = pt.x + infoPtr->xTrackOffset;
1891 if (infoPtr->xOldTrack < infoPtr->items[infoPtr->iMoveItem].rect.left)
1892 infoPtr->xOldTrack = infoPtr->items[infoPtr->iMoveItem].rect.left;
1893 infoPtr->items[infoPtr->iMoveItem].cxy =
1894 infoPtr->xOldTrack - infoPtr->items[infoPtr->iMoveItem].rect.left;
1895 HEADER_DrawTrackLine (hwnd, hdc, infoPtr->xOldTrack);
1896 ReleaseDC (hwnd, hdc);
1897 HEADER_SendHeaderNotifyT (hwnd, HDN_TRACKW, infoPtr->iMoveItem, HDI_WIDTH, NULL);
1900 TRACE("Tracking item %d!\n", infoPtr->iMoveItem);
1904 if (hotTrackEnabled) {
1905 TRACKMOUSEEVENT tme;
1906 if (oldHotItem != infoPtr->iHotItem && !infoPtr->bDragging) {
1908 if (oldHotItem != -1) HEADER_RefreshItem (hwnd, hdc, oldHotItem);
1909 if (infoPtr->iHotItem != -1) HEADER_RefreshItem (hwnd, hdc, infoPtr->iHotItem);
1910 ReleaseDC (hwnd, hdc);
1912 tme.cbSize = sizeof( tme );
1913 tme.dwFlags = TME_LEAVE;
1914 tme.hwndTrack = hwnd;
1915 TrackMouseEvent( &tme );
1923 HEADER_Paint (HWND hwnd, WPARAM wParam)
1928 hdc = wParam==0 ? BeginPaint (hwnd, &ps) : (HDC)wParam;
1929 HEADER_Refresh (hwnd, hdc);
1931 EndPaint (hwnd, &ps);
1937 HEADER_RButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
1942 pt.x = LOWORD(lParam);
1943 pt.y = HIWORD(lParam);
1945 /* Send a Notify message */
1946 bRet = HEADER_SendSimpleNotify (hwnd, NM_RCLICK);
1948 /* Change to screen coordinate for WM_CONTEXTMENU */
1949 ClientToScreen(hwnd, &pt);
1951 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
1952 SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM) hwnd, MAKELPARAM(pt.x, pt.y));
1959 HEADER_SetCursor (HWND hwnd, WPARAM wParam, LPARAM lParam)
1961 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1966 TRACE("code=0x%X id=0x%X\n", LOWORD(lParam), HIWORD(lParam));
1969 ScreenToClient (hwnd, &pt);
1971 HEADER_InternalHitTest (hwnd, &pt, &flags, &nItem);
1973 if (flags == HHT_ONDIVIDER)
1974 SetCursor (infoPtr->hcurDivider);
1975 else if (flags == HHT_ONDIVOPEN)
1976 SetCursor (infoPtr->hcurDivopen);
1978 SetCursor (infoPtr->hcurArrow);
1985 HEADER_SetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
1987 HEADER_INFO *infoPtr = HEADER_GetInfoPtr (hwnd);
1989 HFONT hFont, hOldFont;
1992 infoPtr->hFont = (HFONT)wParam;
1994 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
1997 hOldFont = SelectObject (hdc, hFont);
1998 GetTextMetricsW (hdc, &tm);
1999 infoPtr->nHeight = tm.tmHeight + VERT_BORDER;
2000 SelectObject (hdc, hOldFont);
2003 infoPtr->bRectsValid = FALSE;
2006 InvalidateRect(hwnd, NULL, FALSE);
2012 /* Update the theme handle after a theme change */
2013 static LRESULT HEADER_ThemeChanged(HWND hwnd)
2015 HTHEME theme = GetWindowTheme(hwnd);
2016 CloseThemeData(theme);
2017 OpenThemeData(hwnd, themeClass);
2018 InvalidateRect(hwnd, NULL, FALSE);
2023 static LRESULT WINAPI
2024 HEADER_WindowProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
2026 TRACE("hwnd=%p msg=%x wparam=%x lParam=%lx\n", hwnd, msg, wParam, lParam);
2027 if (!HEADER_GetInfoPtr (hwnd) && (msg != WM_CREATE))
2028 return DefWindowProcW (hwnd, msg, wParam, lParam);
2030 /* case HDM_CLEARFILTER: */
2032 case HDM_CREATEDRAGIMAGE:
2033 return HEADER_CreateDragImage (hwnd, wParam);
2035 case HDM_DELETEITEM:
2036 return HEADER_DeleteItem (hwnd, wParam);
2038 /* case HDM_EDITFILTER: */
2040 case HDM_GETBITMAPMARGIN:
2041 return HEADER_GetBitmapMargin(hwnd);
2043 case HDM_GETIMAGELIST:
2044 return HEADER_GetImageList (hwnd);
2048 return HEADER_GetItemT (hwnd, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_GETITEMW);
2050 case HDM_GETITEMCOUNT:
2051 return HEADER_GetItemCount (hwnd);
2053 case HDM_GETITEMRECT:
2054 return HEADER_GetItemRect (hwnd, wParam, lParam);
2056 case HDM_GETORDERARRAY:
2057 return HEADER_GetOrderArray(hwnd, wParam, lParam);
2059 case HDM_GETUNICODEFORMAT:
2060 return HEADER_GetUnicodeFormat (hwnd);
2063 return HEADER_HitTest (hwnd, wParam, lParam);
2065 case HDM_INSERTITEMA:
2066 case HDM_INSERTITEMW:
2067 return HEADER_InsertItemT (hwnd, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_INSERTITEMW);
2070 return HEADER_Layout (hwnd, wParam, lParam);
2072 case HDM_ORDERTOINDEX:
2073 return HEADER_OrderToIndex(hwnd, wParam);
2075 case HDM_SETBITMAPMARGIN:
2076 return HEADER_SetBitmapMargin(hwnd, wParam);
2078 /* case HDM_SETFILTERCHANGETIMEOUT: */
2080 case HDM_SETHOTDIVIDER:
2081 return HEADER_SetHotDivider(hwnd, wParam, lParam);
2083 case HDM_SETIMAGELIST:
2084 return HEADER_SetImageList (hwnd, (HIMAGELIST)lParam);
2088 return HEADER_SetItemT (hwnd, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_SETITEMW);
2090 case HDM_SETORDERARRAY:
2091 return HEADER_SetOrderArray(hwnd, wParam, lParam);
2093 case HDM_SETUNICODEFORMAT:
2094 return HEADER_SetUnicodeFormat (hwnd, wParam);
2097 return HEADER_Create (hwnd, wParam, lParam);
2100 return HEADER_Destroy (hwnd, wParam, lParam);
2106 return DLGC_WANTTAB | DLGC_WANTARROWS;
2109 return HEADER_GetFont (hwnd);
2111 case WM_LBUTTONDBLCLK:
2112 return HEADER_LButtonDblClk (hwnd, wParam, lParam);
2114 case WM_LBUTTONDOWN:
2115 return HEADER_LButtonDown (hwnd, wParam, lParam);
2118 return HEADER_LButtonUp (hwnd, wParam, lParam);
2121 return HEADER_MouseLeave (hwnd, wParam, lParam);
2124 return HEADER_MouseMove (hwnd, wParam, lParam);
2126 case WM_NOTIFYFORMAT:
2127 return HEADER_NotifyFormat (hwnd, wParam, lParam);
2130 return HEADER_Size (hwnd, wParam);
2132 case WM_THEMECHANGED:
2133 return HEADER_ThemeChanged (hwnd);
2135 case WM_PRINTCLIENT:
2137 return HEADER_Paint (hwnd, wParam);
2140 return HEADER_RButtonUp (hwnd, wParam, lParam);
2143 return HEADER_SetCursor (hwnd, wParam, lParam);
2146 return HEADER_SetFont (hwnd, wParam, lParam);
2149 if ((msg >= WM_USER) && (msg < WM_APP))
2150 ERR("unknown msg %04x wp=%04x lp=%08lx\n",
2151 msg, wParam, lParam );
2152 return DefWindowProcA (hwnd, msg, wParam, lParam);
2158 HEADER_Register (void)
2162 ZeroMemory (&wndClass, sizeof(WNDCLASSW));
2163 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
2164 wndClass.lpfnWndProc = HEADER_WindowProc;
2165 wndClass.cbClsExtra = 0;
2166 wndClass.cbWndExtra = sizeof(HEADER_INFO *);
2167 wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_ARROW);
2168 wndClass.lpszClassName = WC_HEADERW;
2170 RegisterClassW (&wndClass);
2175 HEADER_Unregister (void)
2177 UnregisterClassW (WC_HEADERW, NULL);