app.UIFigure.Pointer performs different when debugging

Question

rocketMan 2022-3-30

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1684099-app-uifigure-pointer-performs-different-when-debugging

回答： Githin George 2023-10-17

app1.mlapp

Hey all,

I am working with App Designer and have UIAxes with an image in it. Now I want to draw something on the image with drawfreehand and immediately afterwards I want to change the Pointer appearance (A small app with my function is attached).

When I run the code, the Pointer appearance does not change. But when I try to debug the code and set the breaktpoint at the line where I set the point value (in the example code line 14), the code works as I want.

Is it an error of mine or is it a bug?

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Giovanni Pasini 2022-3-31

I think it is a bug! I'm struggling with the pointer and drawfreehand! My problem is that the pointer does not go back to arrow after draw freehand interruption with escape key press.

Giovanni Pasini 2022-3-31

I have this problem only when I set the iptsetpointerbehaviour

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Answer 1

Githin George 2023-10-17

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1684099-app-uifigure-pointer-performs-different-when-debugging#answer_1334644

Hello,

I understand you are trying to change the Pointer appearance, but it is only changing when a delay is introduced using a breakpoint.

As a workaround to this issue, you could use the “pause” function after the “drawfreehand” function with a small delay and the move the mouse pointer slightly to get the correct behaviour for pointer.

I hope this helps.