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I have a user control with some text boxes and one RichTextBox.

The standard text boxes work normal.

But when moving the mouse within RichTextBox, the mouse cursor is flickering.

What I have tried:

I checked all events like mouseMove, mouseEnter, mouseHover.

Checked the complete project but do not find the culprit.

Could I detect the reason for this issue with code ?
What else could I do ?
Updated 17-Nov-20 10:37am
The Other John Ingram 17-Nov-20 13:55pm    
try 17-Nov-20 16:01pm    
Thank you will try that.

1 solution

RichTextBox is a cumbersome Control, try the Fast Colored TextBox instead: Fast Colored TextBox for Syntax Highlighting[^]
It's written in C#, but you should be able to use the dll from VB.NET.
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Comments 17-Nov-20 16:01pm    
Thank you will check this tomorrow.

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