image search

Is it possible to compare the screen display to the image I save. The image contain the program - example TeamViewer with the OK button. The thing is; teamviewer doesn't appear at the same location (x, y position) so coordinates are useless. So to compare the image to screen and if find the OK button, to click on it.

If the tutorial is already out there, please link or point me to the right direction. Perhaps a quick example would be much helpful.

thanks,

Edit:

#include<ImageSearch.au3>

HotKeySet("[NUMPAD2]","start")
HotKeySet("[NUMPAD3]","quit")

$x1 = 0
$y1 = 0

while 1
    sleep(1)
WEnd

func start()
while 1
    $result=_ImageSearch("Button.png",1,$x1, $y1, 0)
        if $result=1 Then
            MouseClick("LEFT", $x1, $y1)
        EndIf
WEnd
EndFunc

Func quit()
    exit 0
EndFunc

For some reason it doesn't work even if the dll is within the include folder or with the image.

[edit]

T_T, comes to a search I found out that 64bit doesn't work.