If a form contains a RichTextBox control and other controls that are capable to receive the input focus, when the focus is on the RichTextBox and the user presses the Tab key to add a space, the focus will be moved to the following control in the tab order, and the tab character won’t be added. The solution is check the KeyCode value of theKeyDown events: if it is vbKeyTab, you can programmatically add a tab space and set the KeyCode parameter to 0, to avoid the focus to be moved. Here’s an example:
Private Sub RichTextBox1_KeyDown(KeyCode As Integer, Shift As Integer) If KeyCode = vbKeyTab Then ' add the tab space RichTextBox1.SelText = vbTab ' set KeyCode to 0 to avoid the focus to be moved KeyCode = 0 End IfEnd Sub
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