Hi Sergio,

I'm glad to know it worked !
Realy strange that the way below did not work...

>>>>

LOCAL lnHWnd
>>>>IF Thisform.ShowWindow = 2 && TopLevel Form
>>>>	lnHWnd=SYS(2327, SYS(2325, SYS(2326,Thisform.HWnd))) && From Craig Boyd
>>>>ELSE
>>>>	lnHWnd = Thisform.HWnd
>>>>ENDIF

My conclusion is that when scrollbars are added to a form, a new client window is inserted in it, and creates the confusion of handles...


Here's a simpler way. The code below will return the drawing handlewhatever kind of form you are dealing with:

Add the code to your INIT(), in order to obtain the correct handle, stored in the property "RealHWND"

#DEFINE GW_CHILD 5 
DECLARE LONG GetWindow IN User32 LONG HWND, INTEGER nIndex 
Local lnHwnd 
lnHWND = Thisform.HWND

DO WHILE .T.
	lnClientHwnd = GetWindow(lnHWND, GW_CHILD)
	IF lnClientHWND = 0
		lnClientHWND = lnHWND
		EXIT
	ENDIF
	lnHWND = lnClientHWND
ENDDO
Thisform.AddProperty("RealHWND", lnHWND)

Hope this helps !