6 * Copyright (C) 1999 - 2001 Brian Palmer <brianp@reactos.org>
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 #define WIN32_LEAN_AND_MEAN /* Exclude rarely-used stuff from Windows headers */
37 HICON TrayIcon_GetProcessorUsageIcon(void)
39 HICON hTrayIcon = NULL;
42 HBITMAP hBitmap = NULL;
43 HBITMAP hOldBitmap = NULL;
44 HBITMAP hBitmapMask = NULL;
48 HBRUSH hBitmapBrush = NULL;
52 * Get a handle to the screen DC
54 hScreenDC = GetDC(NULL);
59 * Create our own DC from it
61 hDC = CreateCompatibleDC(hScreenDC);
68 hBitmap = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_TRAYICON));
69 hBitmapMask = LoadBitmap(hInst, MAKEINTRESOURCE(IDB_TRAYMASK));
70 if (!hBitmap || !hBitmapMask)
73 hBitmapBrush = CreateSolidBrush(RGB(0, 255, 0));
78 * Select the bitmap into our device context
79 * so we can draw on it.
81 hOldBitmap = (HBITMAP) SelectObject(hDC, hBitmap);
86 ProcessorUsage = PerfDataGetProcessorUsage();
89 * Calculate how many lines to draw
90 * since we have 11 rows of space
91 * to draw the cpu usage instead of
94 nLinesToDraw = (ProcessorUsage + (ProcessorUsage / 10)) / 11;
96 rc.top = 12 - nLinesToDraw;
101 * Now draw the cpu usage
104 FillRect(hDC, &rc, hBitmapBrush);
107 * Now that we are done drawing put the
110 SelectObject(hDC, hOldBitmap);
113 iconInfo.fIcon = TRUE;
114 iconInfo.xHotspot = 0;
115 iconInfo.yHotspot = 0;
116 iconInfo.hbmMask = hBitmapMask;
117 iconInfo.hbmColor = hBitmap;
119 hTrayIcon = CreateIconIndirect(&iconInfo);
126 ReleaseDC(NULL, hScreenDC);
128 SelectObject(hDC, hOldBitmap);
132 DeleteObject(hBitmapBrush);
134 DeleteObject(hBitmap);
136 DeleteObject(hBitmapMask);
139 * Return the newly created tray icon (if successful)
144 BOOL TrayIcon_ShellAddTrayIcon(void)
150 memset(&nid, 0, sizeof(NOTIFYICONDATA));
152 hIcon = TrayIcon_GetProcessorUsageIcon();
154 nid.cbSize = sizeof(NOTIFYICONDATA);
157 nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
158 nid.uCallbackMessage = WM_ONTRAYICON;
160 wsprintf(nid.szTip, _T("CPU Usage: %d%%"), PerfDataGetProcessorUsage());
162 bRetVal = Shell_NotifyIcon(NIM_ADD, &nid);
170 BOOL TrayIcon_ShellRemoveTrayIcon(void)
175 memset(&nid, 0, sizeof(NOTIFYICONDATA));
177 nid.cbSize = sizeof(NOTIFYICONDATA);
181 nid.uCallbackMessage = WM_ONTRAYICON;
183 bRetVal = Shell_NotifyIcon(NIM_DELETE, &nid);
188 BOOL TrayIcon_ShellUpdateTrayIcon(void)
194 memset(&nid, 0, sizeof(NOTIFYICONDATA));
196 hIcon = TrayIcon_GetProcessorUsageIcon();
198 nid.cbSize = sizeof(NOTIFYICONDATA);
201 nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
202 nid.uCallbackMessage = WM_ONTRAYICON;
204 wsprintf(nid.szTip, _T("CPU Usage: %d%%"), PerfDataGetProcessorUsage());
206 bRetVal = Shell_NotifyIcon(NIM_MODIFY, &nid);