wine/windows/winhelp.c
2002-08-17 00:43:16 +00:00

182 lines
4.6 KiB
C

/*
* Windows Help
*
* Copyright 1996 Martin von Loewis
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include "wine/debug.h"
#include "windef.h"
#include "wingdi.h"
#include "wine/winuser16.h"
#include "wine/winbase16.h"
#include "win.h"
WINE_DEFAULT_DEBUG_CHANNEL(win);
/* WinHelp internal structure */
typedef struct
{
WORD size;
WORD command;
LONG data;
LONG reserved;
WORD ofsFilename;
WORD ofsData;
} WINHELP,*LPWINHELP;
/**********************************************************************
* WinHelp (USER.171)
*/
BOOL16 WINAPI WinHelp16( HWND16 hWnd, LPCSTR lpHelpFile, UINT16 wCommand,
DWORD dwData )
{
BOOL ret;
DWORD mutex_count;
/* We might call WinExec() */
ReleaseThunkLock( &mutex_count );
if (!(ret = WinHelpA( WIN_Handle32(hWnd), lpHelpFile, wCommand, (DWORD)MapSL(dwData) )))
{
/* try to start the 16-bit winhelp */
if (WinExec( "winhelp.exe -x", SW_SHOWNORMAL ) >= 32)
{
K32WOWYield16();
ret = WinHelpA( WIN_Handle32(hWnd), lpHelpFile, wCommand, (DWORD)MapSL(dwData) );
}
}
RestoreThunkLock( mutex_count );
return ret;
}
/**********************************************************************
* WinHelpA (USER32.@)
*/
BOOL WINAPI WinHelpA( HWND hWnd, LPCSTR lpHelpFile, UINT wCommand,
DWORD dwData )
{
static WORD WM_WINHELP = 0;
HWND hDest;
LPWINHELP lpwh;
HGLOBAL16 hwh;
int size,dsize,nlen;
if(!WM_WINHELP)
{
WM_WINHELP=RegisterWindowMessageA("WM_WINHELP");
if(!WM_WINHELP)
return FALSE;
}
hDest = FindWindowA( "MS_WINHELP", NULL );
if(!hDest) {
if(wCommand == HELP_QUIT) return TRUE;
if (WinExec ( "winhlp32.exe -x", SW_SHOWNORMAL ) < 32) {
ERR("can't start winhlp32.exe -x ?\n");
return FALSE;
}
if ( ! ( hDest = FindWindowA ( "MS_WINHELP", NULL ) )) {
FIXME("did not find MS_WINHELP (FindWindow() failed, maybe global window handling still unimplemented)\n");
return FALSE;
}
}
switch(wCommand)
{
case HELP_CONTEXT:
case HELP_SETCONTENTS:
case HELP_CONTENTS:
case HELP_CONTEXTPOPUP:
case HELP_FORCEFILE:
case HELP_HELPONHELP:
case HELP_FINDER:
case HELP_QUIT:
dsize=0;
break;
case HELP_KEY:
case HELP_PARTIALKEY:
case HELP_COMMAND:
dsize = dwData ? strlen( (LPSTR)dwData )+1: 0;
break;
case HELP_MULTIKEY:
dsize = ((LPMULTIKEYHELPA)dwData)->mkSize;
break;
case HELP_SETWINPOS:
dsize = ((LPHELPWININFOA)dwData)->wStructSize;
break;
default:
FIXME("Unknown help command %d\n",wCommand);
return FALSE;
}
if(lpHelpFile)
nlen = strlen(lpHelpFile)+1;
else
nlen = 0;
size = sizeof(WINHELP) + nlen + dsize;
hwh = GlobalAlloc16(0,size);
lpwh = GlobalLock16(hwh);
lpwh->size = size;
lpwh->command = wCommand;
lpwh->data = dwData;
if(nlen) {
strcpy(((char*)lpwh) + sizeof(WINHELP),lpHelpFile);
lpwh->ofsFilename = sizeof(WINHELP);
} else
lpwh->ofsFilename = 0;
if(dsize) {
memcpy(((char*)lpwh)+sizeof(WINHELP)+nlen,(LPSTR)dwData,dsize);
lpwh->ofsData = sizeof(WINHELP)+nlen;
} else
lpwh->ofsData = 0;
GlobalUnlock16(hwh);
return SendMessage16(hDest,WM_WINHELP,hWnd,hwh);
}
/**********************************************************************
* WinHelpW (USER32.@)
*/
BOOL WINAPI WinHelpW( HWND hWnd, LPCWSTR helpFile, UINT command, DWORD dwData )
{
INT len;
LPSTR file;
BOOL ret = FALSE;
if (!helpFile) return WinHelpA( hWnd, NULL, command, dwData );
len = WideCharToMultiByte( CP_ACP, 0, helpFile, -1, NULL, 0, NULL, NULL );
if ((file = HeapAlloc( GetProcessHeap(), 0, len )))
{
WideCharToMultiByte( CP_ACP, 0, helpFile, -1, file, len, NULL, NULL );
ret = WinHelpA( hWnd, file, command, dwData );
HeapFree( GetProcessHeap(), 0, file );
}
return ret;
}