Function get_process_wnd

UM/Driver.h:106–127

static HWND get_process_wnd(uint32_t pid) {
	std::pair<HWND, uint32_t> params = { 0, pid };

	BOOL bResult = EnumWindows([](HWND hwnd, LPARAM lParam) -> BOOL {
		auto pParams = (std::pair<HWND, uint32_t>*)(lParam);
		uint32_t processId = 0;

		if (GetWindowThreadProcessId(hwnd, reinterpret_cast<LPDWORD>(&processId)) && processId == pParams->second) {
			SetLastError((uint32_t)-1);
			pParams->first = hwnd;
			return FALSE;
		}

		return TRUE;

		}, (LPARAM)&params);

	if (!bResult && GetLastError() == -1 && params.first)
		return params.first;

	return NULL;
}

DWORD GetProcessId(const wchar_t* ImageName) {
	HANDLE Snapshot{ CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0) };