windows/winhelp.c

   1 /*
   2  * Windows Help
   3  */
   4
   5 #include <stdlib.h>
   6 #include <stdio.h>
   7 #include <string.h>
   8 #include <unistd.h>
   9 #include "debug.h"
  10 #include "windows.h"
  11 #include "heap.h"
  12 #include "ldt.h"
  13
  14
  15 /**********************************************************************
  16  *             WinHelp16   (USER.171)
  17  */
  18 BOOL16 WINAPI WinHelp16( HWND16 hWnd, LPCSTR lpHelpFile, UINT16 wCommand,
  19                          DWORD dwData )
  20 {
  21     return WinHelp32A( hWnd, lpHelpFile, wCommand,
  22                        (DWORD)PTR_SEG_TO_LIN(dwData) );
  23 }
  24
  25
  26 /**********************************************************************
  27  *             WinHelp32A   (USER32.579)
  28  */
  29 BOOL32 WINAPI WinHelp32A( HWND32 hWnd, LPCSTR lpHelpFile, UINT32 wCommand,
  30                           DWORD dwData )
  31 {
  32         static WORD WM_WINHELP = 0;
  33         HWND32 hDest;
  34         LPWINHELP lpwh;
  35         HGLOBAL16 hwh;
  36         int size,dsize,nlen;
  37         if (wCommand != HELP_QUIT)  /* FIXME */
  38         {
  39             if (WinExec32("winhelp.exe -x",SW_SHOWNORMAL) <= 32)
  40                 return FALSE;
  41
  42             /* NOTE: Probably, this should be directed yield,
  43                      to let winhelp open the window in all cases. */
  44             Yield16();
  45         }
  46
  47         if(!WM_WINHELP)
  48         {
  49                 WM_WINHELP=RegisterWindowMessage32A("WM_WINHELP");
  50                 if(!WM_WINHELP)
  51                         return FALSE;
  52         }
  53
  54         hDest = FindWindow32A( "MS_WINHELP", NULL );
  55         if(!hDest)
  56         {
  57                 if(wCommand == HELP_QUIT)
  58                         return TRUE;
  59                 else
  60                         return FALSE;
  61         }
  62         switch(wCommand)
  63         {
  64                 case HELP_CONTEXT:
  65                 case HELP_SETCONTENTS:
  66                 case HELP_CONTENTS:
  67                 case HELP_CONTEXTPOPUP:
  68                 case HELP_FORCEFILE:
  69                 case HELP_HELPONHELP:
  70                 case HELP_FINDER:
  71                 case HELP_QUIT:
  72                         dsize=0;
  73                         break;
  74                 case HELP_KEY:
  75                 case HELP_PARTIALKEY:
  76                 case HELP_COMMAND:
  77                         dsize = strlen( (LPSTR)dwData )+1;
  78                         break;
  79                 case HELP_MULTIKEY:
  80                         dsize = ((LPMULTIKEYHELP)dwData)->mkSize;
  81                         break;
  82                 case HELP_SETWINPOS:
  83                         dsize = ((LPHELPWININFO)dwData)->wStructSize;
  84                         break;
  85                 default:
  86                         WARN( win,"Unknown help command %d\n",wCommand);
  87                         return FALSE;
  88         }
  89         if(lpHelpFile)
  90                 nlen = strlen(lpHelpFile)+1;
  91         else
  92                 nlen = 0;
  93         size = sizeof(WINHELP) + nlen + dsize;
  94         hwh = GlobalAlloc16(0,size);
  95         lpwh = GlobalLock16(hwh);
  96         lpwh->size = size;
  97         lpwh->command = wCommand;
  98         lpwh->data = dwData;
  99         if(nlen) {
 100                 strcpy(((char*)lpwh) + sizeof(WINHELP),lpHelpFile);
 101                 lpwh->ofsFilename = sizeof(WINHELP);
 102         } else
 103                 lpwh->ofsFilename = 0;
 104         if(dsize) {
 105                 memcpy(((char*)lpwh)+sizeof(WINHELP)+nlen,(LPSTR)dwData,dsize);
 106                 lpwh->ofsData = sizeof(WINHELP)+nlen;
 107         } else
 108                 lpwh->ofsData = 0;
 109         GlobalUnlock16(hwh);
 110         return SendMessage16(hDest,WM_WINHELP,hWnd,hwh);
 111 }
 112
 113
 114 /**********************************************************************
 115  *             WinHelp32W   (USER32.580)
 116  */
 117 BOOL32 WINAPI WinHelp32W( HWND32 hWnd, LPCWSTR helpFile, UINT32 command,
 118                           DWORD dwData )
 119 {
 120     LPSTR file = HEAP_strdupWtoA( GetProcessHeap(), 0, helpFile );
 121     BOOL32 ret = WinHelp32A( hWnd, file, command, dwData );
 122     HeapFree( GetProcessHeap(), 0, file );
 123     return ret;
 124 }