Get HWND of previously running app.

[LPlates]

How can i get the HWND from the previously running app?
I can call a function to find out if there is a prevoius instance of my app. running but Im trying to find the HWND of that previous instance, any ideas?
From the hPreviousInstance ?

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow)

 

[Cagliostro]

In Win32API it is quite impossile. There is an other method to do it:
This is a piece of one of my servers. "IonFilipski-db2orb-v3-server" is just a name for a segment which could be any other names. The segment with this name is shared and variables inside it are accessible to any applications using this segment. If the flag isRunningAlready is true, show server window and exit application. So will be shown only the first instance of application. You should add explicitly /section:IonFilipski-db2orb-v3-server,rws to the linker. RWS means read/write/shared.


.....
#pragma data_seg("IonFilipski-db2orb-v3-server&quot
//begin of segment
static bool isRunningAlready = false;
HWND hServerWnd = 0;
#pragma data_seg() //end of segment
....
//linker:/section:IonFilipski-db2orb-v3-server,rws

int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
{
if(!isRunningAlready)
{
isRunningAlready = true;
}else
{
if(hServerWnd)
{
ShowWindow(hServerWnd, SW_SHOW);
SetForegroundWindow(hServerWnd);
}
return 0;
}
.....
...
}

Ion Filipski

ICQ: 95034075
AIM: IonFilipski
filipski@excite.com

 

[LPlates]

Thanks Ion, I found the following piece of code on P.S.C. but cant ge it to work.

Get HWND from previous running app...

http://planetsourcecode.com/vb/scripts/ShowCode.asp?txtCodeId=3609&lngWId=3

If you have a look at it and get it to work please,please send me an example!

 

[Cagliostro]

put this directive in your code to make it running:

#pragma comment(linker, "/section:IonFilipski-db2orb-v3-server,rws&quot

Ion Filipski

ICQ: 95034075
AIM: IonFilipski
filipski@excite.com