#include "stdafx.h"
HWND GetWindowHandle(const DWORD target_id)
{
auto hWnd = GetTopWindow(nullptr);
do {
if (GetWindowLong(hWnd, GWLP_HWNDPARENT) != 0 || !IsWindowVisible(hWnd))
continue;
DWORD process_id;
GetWindowThreadProcessId(hWnd, &process_id);
if (target_id == process_id)
return hWnd;
} while ((hWnd = GetNextWindow(hWnd, GW_HWNDNEXT)) != nullptr);
return nullptr;
}
int main()
{
// Launch application
STARTUPINFO si;
PROCESS_INFORMATION pi;
::ZeroMemory(&si, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_SHOWNORMAL;
::CreateProcessW(L"Wpf.exe", nullptr, nullptr, nullptr, FALSE, 0, nullptr, nullptr, &si, &pi);
_tprintf(_T("Terminate application: %d\n"), pi.dwProcessId);
// Wait until application completely starts to create window handle
Sleep(1000);
auto handle = GetWindowHandle(pi.dwProcessId);
::PostMessage(handle, WM_CLOSE, 0, 0);
// Terminate forcibly if application does not quit in 5sec.
if (::WaitForSingleObject(pi.hProcess, 5000) == WAIT_TIMEOUT)
{
_tprintf(_T("Terminate forcibly"));
TerminateProcess(pi.hProcess, 0);
}
::CloseHandle(pi.hThread);
::CloseHandle(pi.hProcess);
return 0;
}
