在TextBox / RichTextBox中获取文本的XY位置

Question

How to get coordinates of certain character within TextBox and/or RichTextBox?

I will try to explain this through function:

Point GetXY(int characterIndex) {
    //do some magic
    return new Point(x, y);
}

Idea is to find where selected text is located so Find dialog will not be displayed over this location but moved to side (like Word is doing).

Answer 1

GetPostitionFromCharIndex可能就是您想要的。

Answer 2

您可以通过使用互操作向SendMessage发送EM_POSFROMCHAR消息来完成此操作。