MATLAB getframe捕获屏幕上的所有内容 [英] MATLAB getframe captures whatever is on screen

问题描述

我正在尝试根据我的MATLAB图制作电影.当我调用getframe时，它通常"捕获绘图图像，但是有时如果屏幕上有其他活动的窗口(如果我继续使用计算机，这是正常的)，则它将捕获任何活动的窗口.有没有其他方法可以捕获活动人物的图像?

I am trying to create a movie from my MATLAB plot. When I call getframe, it "usually" captures the plot image, but sometimes if there is something else active on the screen (which is normal if I continue to use the computer) it captures whatever window is active. Is there another way to grab the image of the active figure?

例如

fig = figure;
aviobj = avifile('sample.avi','compression','None');
for i=1:t
    clf(fig);
    plot(...); % some arbitrary plotting
    hold on;
    plot(...); % some other arbitrary plotting
    axis([0 50 0 50]);
    aviobj = addframe(aviobj, getframe(fig));
end
aviobj = close(aviobj);

推荐答案

确定，找到解决方案；代替

OK, found the solution; instead of

aviobj = addframe(aviobj, getframe(fig));

直接将图形手柄发送到addframe就足够了:

sending the figure handle directly to addframe is enough:

aviobj = addframe(aviobj, fig);

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