Article I write previous, I said, RichTextBox has a problem in IME,
when setting Text property to Nothing, but that's not a true, I test
that again, but in same condition that problem does not raised again.
The reason is handling Textchanged event.
In my code, when each text change event, I accessed to Text property.
That's the problem.
In normal situation, textbox must wait IME completes making character.
But RichTextBox does not wait, and seperate each key inputs to
seperated characters. And the hooking is not a reguler. In some
character completed well, but some characters couldn't.
Here my code.
Try input Korean characters.
Private Sub SourceView_TextChanged(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles SourceView.TextChanged