java.awt.IllegalComponentStateException: The frame is decorated

Question

Tenzin Kunkyab 2021-8-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/895942-java-awt-illegalcomponentstateexception-the-frame-is-decorated

编辑： Himanshu 2024-6-6

Hi,

I got the following error from an old code that I am trying to fix to work in modern version of matlab: (If there is an easy way to fix the bug, would be really helpful!)

Java exception occurred:

java.awt.IllegalComponentStateException: The frame is decorated

at java.awt.Frame.setOpacity(Frame.java:960)

at java.awt.Window$1.setOpacity(Window.java:4037)

at com.sun.awt.AWTUtilities.setWindowOpacity(AWTUtilities.java:174)

The original code is the following:

for stepIdx = 1 : 10
   if stepIdx == 1
       com.sun.awt.AWTUtilities.setWindowOpacity(jWindow1,0.01)
       pause(0.25)
   end
   newAlpha = -.01 + 0.1*stepIdx;
   com.sun.awt.AWTUtilities.setWindowOpacity(jWindow1,newAlpha)
   jWindow1.repaint;
end

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Himanshu 2024-6-6

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/895942-java-awt-illegalcomponentstateexception-the-frame-is-decorated#answer_1468261

编辑：Himanshu 2024-6-6

Hi Tenzin,

I understand that you are trying to set the opacity of a java frame but are encountering an error. The error message indicates that the 'frame is decorated', which is precisely the issue.

Newer versions of Java (and hence MATLAB) do not allow setting the opacity of a window to less than 0.1f if it is decorated. There are also some other constraints deatils of which can be found here: https://docs.oracle.com/javase/7/docs/api/java/awt/Frame.html#setOpacity%28float%29

Hope this information helps!