Opencv_how to catch event

opencv

asked 2013-04-05 04:54:03 -0600

Vuong Bui
11 ●2

How to catch event keyboard when i keypress on cvNamedWindow in opencv

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answered 2013-04-05 05:05:32 -0600

Vladislav Vinogradov

4775 ●4 ●24 ●62

use cvWaitKey function:

cvNamedWindow("window")
for(;;)
{
    char key = (char) cvWaitKey(10);
    if (key == 27 /*escape*/)
        break;
}

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And to add to this, if you add cvWaitKey(0) then it will wait forever on a single key. Do know that the function can only exist if at least a single namedWindow is defined in your code.

StevenPuttemans ( 2013-04-05 06:56:06 -0600 )edit

thanks you

Vuong Bui ( 2013-04-05 11:44:03 -0600 )edit

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Asked: 2013-04-05 04:54:03 -0600

Seen: 220 times

Last updated: Apr 05 '13

Opencv_how to catch event edit