VOID Trace(_In_ LPCTSTR pszFormat, ...)
{
#ifdef _DEBUG
PTSTR lpMsg, lpOut;
va_list argList;
HANDLE hHeap;
size_t cbLen;
HRESULT hr;
hHeap = GetProcessHeap();
if (hHeap) {
va_start(argList, pszFormat);
hr = StringCchAVPrintf(hHeap, &lpMsg, &cbLen, pszFormat, argList);
va_end(argList);
if (SUCCEEDED(hr)) {
hr = StringCchAPrintf(hHeap, &lpOut, &cbLen, TEXT("devsane: %s\r\n"), lpMsg);
if (SUCCEEDED(hr)) {
OutputDebugString(lpOut);
HeapFree(hHeap, 0, lpOut);
}
HeapFree(hHeap, 0, lpMsg);
}
}
#else
UNREFERENCED_PARAMETER(pszFormat);
#endif
}
/**
* Fatal error handler. Provides support for formatting the system
* error message and showing errors with format strings etc blahblah.
*/
STATIC NORETURN FatalError(DWORD dwError, LPTSTR lpMessage, ...)
{
DWORD dwExit;
va_list lpArgs = NULL;
LPTSTR lpDisplayBuf = NULL;
// If dwError has not been set, use the value of GetLastError
if(dwError == ERROR_SUCCESS) {
dwError = GetLastError();
}
// Format message against args.
va_start(lpArgs, lpMessage);
lpDisplayBuf = StringCchVAPrintf(lpMessage, lpArgs);
va_end(lpArgs);
// If dwError contains an error code, get the system error message for it.
if(dwError != ERROR_SUCCESS) {
TCHAR *lpErrMsg = NULL, *lpTemp = NULL;
dwExit = dwError;
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, dwError, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&lpErrMsg, 0, NULL
);
lpTemp = StringCchAPrintf(_T("%s - Windows Error [0x%08X]: %s"), lpDisplayBuf, dwError, lpErrMsg);
xfree(lpDisplayBuf);
lpDisplayBuf = lpTemp;
LocalFree((HLOCAL)lpErrMsg);
} else {
dwExit = 1;
}
ShowErrorMessage(lpDisplayBuf);
xfree(lpDisplayBuf);
ExitProcess(dwExit);
}