I've got dots in a DrawingArea and I'm looking to click on any of these dots and get the x,y coordinates.

I tried using the `DrawingArea_MouseDown` event:


However, I instead get the error:

Null object

Is what I'm after possible?  If yes, how?

Nevermind.  I figured it out.

No need to use DrawingArea object.  Just need to get Mouse.X, Mouse.Y

ak2766 said

Nevermind.  I figured it out.

No need to use DrawingArea object.  Just need to get Mouse.X, Mouse.Y

Code (gambas)

1. Public Sub DrawingArea1_MouseDown()
2.  
3.   Print Mouse.X & "," & Mouse.Y
4.  
5. End
6.  

You got it.

for any control Mouse event like MouseDown / MouseMove, Mouse.X and Mouse.Y are relative to the control contents (0,0 being top left)

From outside of a controls mouse event you will find Mouse.X and Mouse.Y give a "no mouse data" error but then you can use the screen alternatives.

Control.Cursor is for setting the cursor image
Ie.
DrawingArea1.Cursor = Cursor.CrossHair   will make the cursor be a crosshair
DrawingArea1.Cursor = Cursor.Default  will use the default

Ps.
I know you didn't need it but in that first example it would be easier to do this…


In any Event the Last keyword points to the calling object.
so in a drawingarea mousedown event Last is the drawingarea

Thanks for the extra pointers, Bruce.

Really getting to know GAMBAS now -   !