Displaying Mouse co-ordinates in an edit box

[pragati_05`]

I'm working on a dialog based MFC. I have used a Picture Box Control to draw a rectangle and written the code for drawing in the picture box using a sperate class inherited from CStatic (Pict Class). I wish to capture the mouse co-ordinates as it moves inside the Picture box(only) and display the co-ordintaes to the user on the Dialog screen using an edit box. i have handled the onMouseMove function to get the co-ordinates. But i'm facing the difficulty to display it to the user. Can somebody please help me out in this. I want the edit to display the refreshed co-ordinates as soon as the mouse moves inside the Picture Box. I'm attaching the PictureCtrlDlg.cpp and the Pict.cpp file for refrence.