DC & Getpixel issues... :/

I grabbed the hwnd...
I got the window's DC...
and now when i try to grab a pixel from the window it always fails and rets -1.

I can't figure out why. but i did figure out that if the cursor is in the client area or passes through the client area and then i use the getpixel function it suceeds. I dont know how to get this to work. any suggestion... here is my code...

Dim HDC As Long, LCOLOR As Long
Dim aim As AIM_Windows
Dim aimXY As POINTAPI
aim = getAimWindows()
'
HDC = GetDC(aim.BuddyList)
aimXY.x = 1000
aimXY.y = 200
'Call PostMessage(aim.BuddyList, WM_MOUSEFIRST, WM_LBUTTONDOWN, 0)
LCOLOR = GetPixel(HDC, 19, 41)
Call ReleaseDC(aim.BuddyList, HDC)
If LCOLOR <> -1 Then frmMain.BackColor = LCOLOR
frmMain.Caption = LCOLOR

thanks

http://www.vbforums.com/showthread.p...hreadid=144882

Try looking at this thread. Might help

hrm, no that won't do. i am dealing with an external hdc and like i said, if the cursor passed through the window getpixel will work for awhile then stops until the cursor passes through the window again.