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Merge pull request #23390 from just-gull:bugfix.21401.fix-macos-crash-when-keypress-does-nothing

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check keydown event characters length on macos
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Alexander Smorkalov 2023-04-02 12:29:55 +03:00 committed by GitHub
commit 20eee64426
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1 changed files with 1 additions and 1 deletions
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modules/highgui/src/window_cocoa.mm
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@ -618,7 +618,7 @@ CV_IMPL int cvWaitKey (int maxWait)
inMode:NSDefaultRunLoopMode
dequeue:YES];
if([event type] == NSKeyDown) {
if([event type] == NSKeyDown && [[event characters] length]) {
returnCode = [[event characters] characterAtIndex:0];
break;
}