Reg break function in opencv

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Hi
I wrote code for mousecallback function.

C++

while(1)  
{  
    myShowImageScroll("Image", image, width, height);  
    int KEY = cvWaitKey(10);  
    if( (char) KEY == 27 ) 
    {
        cvWaitKey();
        break;
    }
}

Here how can I stop the program without using virtual keys.

Posted 10-Jul-11 23:19pm

Priyarao14

Updated 10-Jul-11 23:35pm

Richard MacCutchan

v2

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Stefan_Lang · Answer 1 · 2011-07-11T01:43:00

I'm not familiar with OpenCV, but wouldn't cvWaitKey() only react to events from your keyboard? If this is mouse callback code, why then do you query the keyboard?

Not to mention that you never should call functions that rely on events inside an event handler (if this is one) - you'd be provoking deadlocks! I'd expect that any information required to resolve event handling would be passed as parameters to the event handler function. Is this not the case for your mouse callback? If so, what are you missing?

Priyarao14 · Answer 2 · 2011-07-12T21:00:00

Solution 2

Actually, I need to stop the program without using ESC key.

Posted 12-Jul-11 21:00pm