--- /dev/null
+/*
+ * ReactOS kernel
+ * Copyright (C) 1998, 1999, 2000, 2001, 2002 ReactOS Team
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/* $Id: winhelp.c,v 1.1 2002/08/27 06:40:15 robd Exp $
+ *
+ * PROJECT: ReactOS user32.dll
+ * FILE: lib/user32/misc/winhelp.c
+ * PURPOSE: WinHelp
+ * PROGRAMMER: Robert Dickenson(robd@reactos.org)
+ * UPDATE HISTORY:
+ * 23-08-2002 RDD Created from wine sources
+ */
+
+/* INCLUDES ******************************************************************/
+
+#include <windows.h>
+#include <user32.h>
+#include <debug.h>
+
+/* WinHelp internal structure */
+typedef struct
+{
+ WORD size;
+ WORD command;
+ LONG data;
+ LONG reserved;
+ WORD ofsFilename;
+ WORD ofsData;
+} WINHELP,*LPWINHELP;
+
+
+/* FUNCTIONS *****************************************************************/
+
+WINBOOL
+STDCALL
+WinHelpA(HWND hWnd, LPCSTR lpszHelp, UINT uCommand, DWORD dwData)
+{
+ static WORD WM_WINHELP = 0;
+ HWND hDest;
+ LPWINHELP lpwh;
+ HGLOBAL 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 (uCommand == 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 (uCommand) {
+ 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",uCommand);
+ return FALSE;
+ }
+ if (lpszHelp)
+ nlen = strlen(lpszHelp)+1;
+ else
+ nlen = 0;
+ size = sizeof(WINHELP) + nlen + dsize;
+ hwh = GlobalAlloc(0,size);
+ lpwh = GlobalLock(hwh);
+ lpwh->size = size;
+ lpwh->command = uCommand;
+ lpwh->data = dwData;
+ if (nlen) {
+ strcpy(((char*)lpwh) + sizeof(WINHELP), lpszHelp);
+ 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;
+ }
+ GlobalUnlock(hwh);
+ return SendMessage(hDest, WM_WINHELP, hWnd, (LPARAM)hwh);
+}
+
+WINBOOL
+STDCALL
+WinHelpW(HWND hWnd, LPCWSTR lpszHelp, UINT uCommand, DWORD dwData)
+{
+ INT len;
+ LPSTR file;
+ BOOL ret = FALSE;
+
+ if (!lpszHelp) return WinHelpA(hWnd, NULL, uCommand, dwData);
+
+ len = WideCharToMultiByte(CP_ACP, 0, lpszHelp, -1, NULL, 0, NULL, NULL);
+ if ((file = HeapAlloc(GetProcessHeap(), 0, len))) {
+ WideCharToMultiByte(CP_ACP, 0, lpszHelp, -1, file, len, NULL, NULL);
+ ret = WinHelpA(hWnd, file, uCommand, dwData);
+ HeapFree(GetProcessHeap(), 0, file);
+ }
+ return ret;
+}
+