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How do I make a read-only TextBox ignore the MouseDown event so the user can scroll the text or set the cursor?

April 26, 2017event mousedown read-only scroll text TextBox user

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How do I make a read-only TextBox ignore the MouseDown event so the user can scroll the text or set the cursor?

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You can do this by deriving the TextBox, overriding the WndProc method and ignoring these mouse down messages. [C#] public class CustomTextBox : TextBox { protected override void WndProc( ref Message m ) { // WM_NCLBUTTONDOWN WM_LBUTTONDOWN if ( !( ReadOnly…