HWND ShowHelpW(HWND hOwner, WCHAR *help_dir, WCHAR *help_file, WCHAR *section)
{
if (NULL != strstr(WtoA(help_file), "http"))
{
//从help_file中发现“http”字符，打开URL
//Found "http" in help_file string, open web URL.
WCHAR path[MAX_PATH];
MakePathW(path, L"", help_file);
if (section)
wcscpy(path + wcslen(path), section);
::ShellExecuteW(NULL, NULL, path, NULL, NULL, SW_SHOW);
return NULL;
}
else
{
//从help_file中未发现“http”字符，打开chm
//Not found "http" in help_file string, open chm file.
#if defined(ENABLE_HTML_HELP)
if (!pHtmlHelpW) InitHtmlHelp();
if (pHtmlHelpW) {
WCHAR path[MAX_PATH];
MakePathW(path, help_dir, help_file);
if (section)
wcscpy(path + wcslen(path), section);
return pHtmlHelpW(hOwner, path, HH_HELP_FINDER, 0);
}
#endif
return NULL;
}
}
HWND CloseHelpAll()
{
#if defined(ENABLE_HTML_HELP)
if (!pHtmlHelpW) return NULL;
return pHtmlHelpW(0, 0, HH_CLOSE_ALL, 0);
#else
return NULL;
#endif
}
BOOL InitHtmlHelpCore()
{
DWORD cookie=0;
HMODULE hHtmlHelp = TLoadLibrary("hhctrl.ocx");
if (hHtmlHelp)
pHtmlHelpW = (HWND (WINAPI *)(HWND, WCHAR *, UINT, DWORD_PTR))
::GetProcAddress(hHtmlHelp, "HtmlHelpW");
if (pHtmlHelpW)
pHtmlHelpW(NULL, NULL, HH_INITIALIZE, (DWORD)&cookie);
return pHtmlHelpW ? TRUE : FALSE;;
}
/*
* supShowHelp
*
* Purpose:
*
* Display help file if available.
*
*/
VOID supShowHelp(
VOID
)
{
DWORD dwSize;
HKEY hKey;
LRESULT lRet;
HANDLE hHtmlOcx;
WCHAR szOcxPath[MAX_PATH + 1];
WCHAR szHelpFile[MAX_PATH * 2];
RtlSecureZeroMemory(&szOcxPath, sizeof(szOcxPath));
RtlSecureZeroMemory(szHelpFile, sizeof(szHelpFile));
lRet = RegOpenKeyEx(HKEY_CLASSES_ROOT, HHCTRLOCXKEY, 0, KEY_QUERY_VALUE, &hKey);
if (lRet == ERROR_SUCCESS) {
dwSize = MAX_PATH * sizeof(WCHAR);
lRet = RegQueryValueEx(hKey, L"", NULL, NULL, (LPBYTE)szHelpFile, &dwSize);
RegCloseKey(hKey);
if (lRet == ERROR_SUCCESS) {
if (ExpandEnvironmentStrings(szHelpFile, szOcxPath, MAX_PATH) == 0) {
lRet = ERROR_SECRET_TOO_LONG;
}
}
}
if (lRet != ERROR_SUCCESS) {
_strcpy(szOcxPath, HHCTRLOCX);
}
RtlSecureZeroMemory(szHelpFile, sizeof(szHelpFile));
if (!GetCurrentDirectory(MAX_PATH, szHelpFile)) {
return;
}
_strcat(szHelpFile, L"\\winobjex64.chm");
hHtmlOcx = GetModuleHandle(HHCTRLOCX);
if (hHtmlOcx == NULL) {
hHtmlOcx = LoadLibrary(szOcxPath);
if (hHtmlOcx == NULL) {
return;
}
}
if (pHtmlHelpW == NULL) {
pHtmlHelpW = (pfnHtmlHelpW)GetProcAddress(hHtmlOcx, MAKEINTRESOURCEA(0xF));
if (pHtmlHelpW == NULL) {
return;
}
}
pHtmlHelpW(GetDesktopWindow(), szHelpFile, 0, 0);
}
