Function ShowExternalMessageBox

TombEngine/Specific/winmain.cpp:266–308

}

void ShowExternalMessageBox(const std::string& text)
{
	// Try to locate error message utility resource.
	HRSRC res = FindResource(NULL, MAKEINTRESOURCE(IDR_CRASHMSG), "EXE");
	if (!res)
		return;

	// Load executable, if found.
	HGLOBAL resData = LoadResource(NULL, res);
	if (!resData)
		return;

	// Lock executable resource to get pointer to data.
	void* resPtr = LockResource(resData);
	if (!resPtr)
		return;

	const auto exePath = std::string("crashmsg.exe");

	// Write executable to a disk.
	HANDLE hFile = CreateFileA(exePath.c_str(), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
	if (hFile == INVALID_HANDLE_VALUE)
		return;

	DWORD written;
	WriteFile(hFile, resPtr, SizeofResource(NULL, res), &written, NULL);
	CloseHandle(hFile);

	STARTUPINFOA si = { sizeof(si) };
	PROCESS_INFORMATION pi;

	// Execute the error message utility with the provided text.
	std::string cmdLine = "\"" + exePath + "\" " + "\"" + text + "\"";
	if (CreateProcessA(NULL, cmdLine.data(), NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi))
	{
		WaitForSingleObject(pi.hProcess, INFINITE);
		CloseHandle(pi.hProcess);
		CloseHandle(pi.hThread);
	}

	// Clean up error message utility afterwards.
	DeleteFileA(exePath.c_str());
}

LONG WINAPI HandleException(EXCEPTION_POINTERS* exceptionInfo)
{