git.oblomov.eu Git - wine/blob - dlls/user/thunk.c

   1 /*
   2  * USER 16-bit thunks
   3  *
   4  * Copyright 1996, 1997 Alexandre Julliard
   5  * Copyright 1998       Ulrich Weigand
   6  */
   7
   8 #include "windef.h"
   9 #include "wingdi.h"
  10 #include "wine/winuser16.h"
  11 #include "callback.h"
  12
  13 /* ### start build ### */
  14 extern WORD CALLBACK THUNK_CallTo16_word_wl   (FARPROC16,WORD,LONG);
  15 extern WORD CALLBACK THUNK_CallTo16_word_wlw  (FARPROC16,WORD,LONG,WORD);
  16 extern WORD CALLBACK THUNK_CallTo16_word_wlwww(FARPROC16,WORD,LONG,WORD,WORD,WORD);
  17 /* ### stop build ### */
  18
  19
  20 /*******************************************************************
  21  *           EnumWindows   (USER.54)
  22  */
  23 BOOL16 WINAPI EnumWindows16( WNDENUMPROC16 func, LPARAM lParam )
  24 {
  25     DECL_THUNK( thunk, func, THUNK_CallTo16_word_wl );
  26     return EnumWindows( (WNDENUMPROC)&thunk, lParam );
  27 }
  28
  29
  30 /**********************************************************************
  31  *           EnumChildWindows   (USER.55)
  32  */
  33 BOOL16 WINAPI EnumChildWindows16( HWND16 parent, WNDENUMPROC16 func, LPARAM lParam )
  34 {
  35     DECL_THUNK( thunk, func, THUNK_CallTo16_word_wl );
  36     return EnumChildWindows( parent, (WNDENUMPROC)&thunk, lParam );
  37 }
  38
  39
  40 /**********************************************************************
  41  *           EnumTaskWindows   (USER.225)
  42  */
  43 BOOL16 WINAPI THUNK_EnumTaskWindows16( HTASK16 hTask, WNDENUMPROC16 func,
  44                                        LPARAM lParam )
  45 {
  46     DECL_THUNK( thunk, func, THUNK_CallTo16_word_wl );
  47     return EnumTaskWindows16( hTask, (WNDENUMPROC16)&thunk, lParam );
  48 }
  49
  50
  51 /***********************************************************************
  52  *           EnumProps   (USER.27)
  53  */
  54 INT16 WINAPI THUNK_EnumProps16( HWND16 hwnd, PROPENUMPROC16 func )
  55 {
  56     DECL_THUNK( thunk, func, THUNK_CallTo16_word_wlw );
  57     return EnumProps16( hwnd, (PROPENUMPROC16)&thunk );
  58 }
  59
  60
  61 /***********************************************************************
  62  *           GrayString   (USER.185)
  63  */
  64 BOOL16 WINAPI THUNK_GrayString16( HDC16 hdc, HBRUSH16 hbr,
  65                                   GRAYSTRINGPROC16 func, LPARAM lParam,
  66                                   INT16 cch, INT16 x, INT16 y,
  67                                   INT16 cx, INT16 cy )
  68 {
  69     DECL_THUNK( thunk, func, THUNK_CallTo16_word_wlw );
  70     if (!func)
  71         return GrayString16( hdc, hbr, NULL, lParam, cch, x, y, cx, cy );
  72     else
  73         return GrayString16( hdc, hbr, (GRAYSTRINGPROC16)&thunk, lParam, cch,
  74                              x, y, cx, cy );
  75 }
  76
  77
  78 /**********************************************************************
  79  *           DrawState    (USER.449)
  80  */
  81 BOOL16 WINAPI DrawState16( HDC16 hdc, HBRUSH16 hbr, DRAWSTATEPROC16 func, LPARAM ldata,
  82                            WPARAM16 wdata, INT16 x, INT16 y, INT16 cx, INT16 cy, UINT16 flags )
  83 {
  84     UINT opcode = flags & 0xf;
  85     DECL_THUNK( thunk, func, THUNK_CallTo16_word_wlwww );
  86
  87     if (opcode == DST_TEXT || opcode == DST_PREFIXTEXT)
  88     {
  89         /* make sure DrawStateA doesn't try to use ldata as a pointer */
  90         if (!wdata) wdata = strlen( MapSL(ldata) );
  91         if (!cx || !cy)
  92         {
  93             SIZE s;
  94             if (!GetTextExtentPoint32A( hdc, MapSL(ldata), wdata, &s )) return FALSE;
  95             if (!cx) cx = s.cx;
  96             if (!cy) cy = s.cy;
  97         }
  98     }
  99     return DrawStateA( hdc, hbr, (DRAWSTATEPROC)&thunk, ldata, wdata, x, y, cx, cy, flags );
 100 }