// ishung.cpp (Windows 95/98/NT/2000)

//

// This example will show you how you can obtain the current status

// of the application.

//

//

// (c)1999 Ashot Oganesyan K, SmartLine, Inc

// , ,

#include <windows.h>

#include <stdio.h>

// User32!IsHungAppWindow (NT specific!)

//

// The function retrieves the status (running or not responding) of the

// specified application

//

// BOOL IsHungAppWindow(

//   HWND hWnd,        // handle to main app's window

// );

typedef BOOL (WINAPI *PROCISHUNGAPPWINDOW)(HWND);

// User32!IsHungThread (95/98 specific!)

//

// The function retrieves the status (running or not responding) of the

// specified thread

//

// BOOL IsHungThread(

//   DWORD dwThreadId, // The identifier of the main app's window thread

// );

typedef BOOL (WINAPI *PROCISHUNGTHREAD)(DWORD);

PROCISHUNGAPPWINDOW   IsHungAppWindow;

PROCISHUNGTHREAD   IsHungThread;

void main(int argc, char* argv[])

{

 if (argc<2)

 {

  printf("Usage:\n\nishung.exe hWnd\n");

  return;

 }

 HWND hWnd;

 sscanf(argv[1],"%lx",&hWnd);

 if (!IsWindow(hWnd))

 {

  printf("Incorrect window handle\n");

  return;

 }

 HMODULE hUser32 = GetModuleHandle("user32");

 if (!hUser32)

  return;

 IsHungAppWindow = (PROCISHUNGAPPWINDOW)

                                         GetProcAddress( hUser32,

                                                         "IsHungAppWindow" );

 IsHungThread = (PROCISHUNGTHREAD) GetProcAddress( hUser32,

                                                          "IsHungThread" );

 if (!IsHungAppWindow && !IsHungThread)

  return;

 OSVERSIONINFO osver;

 osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);

 if (!GetVersionEx(&osver))

  return;

 BOOL IsHung;

 if (osver.dwPlatformId&VER_PLATFORM_WIN32_NT)

  IsHung = IsHungAppWindow(hWnd);

 else

  IsHung = IsHungThread(GetWindowThreadProcessId(hWnd,NULL));

 if (IsHung)

  printf("Not Responding\n");

 else

  printf("Running\n");

}