How can I get any pressed key while playing the video?

Question

MOHIT 2016-5-16

0
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https://ww2.mathworks.cn/matlabcentral/answers/284414-how-can-i-get-any-pressed-key-while-playing-the-video

评论： MOHIT 2016-5-22

采纳的回答： Walter Roberson

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I want to get any pressed key during the video is played, using 'KeyPressFcn'

my script is

videoFReader = vision.VideoFileReader('rhinos.avi');
videoPlayer = vision.VideoPlayer;
% Play video. Every call to the step method reads another frame.
while ~isDone(videoFReader)
   frame = step(videoFReader);
   step(videoPlayer,frame);
%    pause(1)
end
% Close the file reader and video player.
release(videoFReader);
release(videoPlayer);

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Answer 1

Walter Roberson 2016-5-22

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https://ww2.mathworks.cn/matlabcentral/answers/284414-how-can-i-get-any-pressed-key-while-playing-the-video#answer_223027

VideoPlayer opens its own play interface and there is no way to tell it to play within a specific axes or figure. That makes it more difficult to find the figure and attach a callback to it. Easier is to create another figure and attach a WindowKeypressFcn callback to it and give the figure focus (so that it becomes the one that receives the keypress events.)