AfxGetMainWnd() return NULL

Question

I have a problem. 

This code this within a thread. 
 
CFrameWnd *pFrame = (CFrameWnd*)AfxGetMainWnd(); 
 
if (pFrame != NULL) 
 
{ 
 
.... 
 
} 
 
For some reaso, AfxGetMainWnd() returns NULL. Why is that?  
 
Same code is working fine in evc . 

Need  the window to send a message 

Thanks for ur help

Answer 1

You get this when you try to call AfxGetMainWnd () from an other thread (has to do with thread local storage)

Try AfxGetApp ()->GetMainWnd () instead.

 

Answer 2

This was very helpfull to me. This works as explained, when called from another thread and in my case a delegate function, getting the main app and then the window worked, and no more unhandled exception. Thanks, jonesap5