asked on

detect other program is running

Hi,Experts:
my program has some functions only can process when one other independent program is running.
I have a question about this, it is possible to detect if other program is already running in the system.
please help me, simple sample code will be very appreciated. I am using VC++ 6 and win2k.
thank you very much!

--pigangel

ASKER CERTIFIED SOLUTION

ghimireniraj

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arunsrk

First of all
Create your own class name for your window
if you are using MFC use the Follwing Code in
InitInstance() Function of your application if you are following classic sdk style then WNDLCASS is already there..

// Register your unique class name that you wish to use

WNDCLASS wndcls;
memset(&wndcls, 0, sizeof(WNDCLASS));
wndcls.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
wndcls.lpfnWndProc = ::DefWindowProc;
wndcls.hInstance = AfxGetInstanceHandle();
wndcls.hIcon = LoadIcon(IDR_MAINFRAME);
wndcls.hCursor = LoadCursor( IDC_ARROW );
wndcls.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
wndcls.lpszMenuName = NULL;

//Specify your own class name for using FindWindow later

wndcls.lpszClassName = _T("PIGANGEL'S_CLASS");
if(!AfxRegisterClass(&wndcls))
{
AfxMessageBox(_T("Class Registration Failed"));
return FALSE;
}

In the Second Application where you want to detect whether the window is running use the following code ..
here you get the handle of the application if your window is running.. You get the handle if the window is hidden too..
HWND hWnd = ::FindWindow(_T("PIGANGEL'S_CLASS"),NULL);
if(hWnd != NULL)
{
// Window Present You can do anything you want here
}
else
{
// Application not running
}

pigangel

ASKER

Hi,Niraj, your solution works perfect!

Arunsrk, the independent program is not handled by me, so your suggestion is not appliable to my qunestion, but I believe it will work on other scenario.

thank you very much!

-- pigangel