Clean edit box text on click

Question

I have a form with buttons and edit boxes. I want to clean the edit boxes on mouse click, which event should I use in LRESULT CALLBACK procedure?

#define IDC_MAIN_EDIT 102 
HWND hEdit;

Answer 1

Firstly, you need to handle the WM_SETFOCUS message. The next thing you need to do, is clear the text as your question states. In which case you can send WM_SETTEXT with a \\0 or a null pointer, see here