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By Design
Votes
0
Found in
2021.3.29f1
2022.3.7f1
2023.1.9f1
2023.2.0b6
Issue ID
UUM-46681
Regression
No
The Button is not activated when using IMGUI in the Inspector window
Reproduction steps:
1. Open the attached project “ButtonBug“
2. Select the Text Asset “Assets/XML/Test”
3. In the Inspector window press the Button “Test”
4. Observe the Console Window
Expected result: The Console window is empty
Actual result: “Clicked Test” message is displayed in the Console window
Reproducible with: 2021.3.29f1, 2022.3.7f1, 2023.1.9f1, 2023.2.0b6
Reproducible on: Windows 10
Not reproducible on: No other environment tested
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Resolution Note:
This behaviour is expected because the custom inspector builds its own rectangle and draws a button on screen without going through the normal IMGUI layout system.
As a result the IMGUIContainer that is auto-created for IMGUI inspector has no idea about the size of the IMGUI content, so it ends up having a height of 0, therefore not receiving clicks.
The fact that the hover state is responding is misleading, this is because of how the hover effect is implemented (it is not based on mouse events, it just changes accordingly if the mouse is over the object in the repaint code).
It should be possible to get the desired effect by using GUILayout.Button.