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How to refresh Viewport when dragging a spinbox (FModeToolkit)?

The viewport of my custom EdMode does not update while I drag a spinbox (which is in a custom FModeToolkit). In fact, MyCustomEdMode::Render() is not even called (while the spinbox).

How can I refresh the viewport while dragging?

Product Version: UE 4.9
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asked Mar 18 '16 at 06:22 PM in C++ Programming

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Arthur Masson
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The MyCustomEdMode::::DrawHUD(FEditorViewportClient* ViewportClient, FViewport* Viewport, const FSceneView* View, FCanvas* Canvas) function gives access to the FEditorViewportClient which must be invalidated.

In the spinbox onValueChange callback there must be ViewportClient->Invalidate();.

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answered Mar 21 '16 at 09:35 AM

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Arthur Masson
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