Jump to content
Sign in to follow this  

Homebrew PixelGetColor for inactive windows.

Recommended Posts


After calling the following function the window I'm reading is all messed up.

Parts of it are redrawn but not others, _WinAPI_RedrawWindow doesn't seem to help and I wondered if I'm doing something wrong?


$hWnd = WinGetHandle('Spot')
ConsoleWrite($hWnd & @CRLF)
ConsoleWrite(_PixelGet2($hWnd, 1, 20) & @CRLF)
Func _PixelGet2($hWnd, $iX, $iY)
    $iState = WinGetState($hWnd)
    If Not BitAND($iState, 2) Or BitAND($iState, 16) Then Return 0
    Local $hDDC, $hCDC, $hBMP, $ret
    $iPos = WinGetPos($hWnd)

    $hDDC = DllCall("user32.dll", "handle", "GetDC", "hwnd", $hWnd)
    $hCDC = DllCall("gdi32.dll", "handle", "CreateCompatibleDC", "handle", $hDDC[0])
    $hBMP = DllCall("gdi32.dll", "handle", "CreateCompatibleBitmap", "handle", $hDDC[0], "int", $iPos[2], "int", $iPos[3])
    DllCall("gdi32.dll", "handle", "SelectObject", "handle", $hCDC[0], "handle", $hBMP[0])
    DllCall("User32.dll", "int", "PrintWindow", "hwnd", $hWnd, "hwnd", $hCDC[0], "int", 0)

    $ret = DllCall("gdi32", "int", "GetPixel", "ptr", $hCDC[0], "int", $iX, "int", $iY)

    DllCall("user32.dll", "int", "ReleaseDC", "hwnd", $hWnd, "handle", $hDDC[0])
    DllCall("gdi32.dll", "bool", "DeleteDC", "handle", $hCDC[0])
    DllCall("gdi32.dll", "bool", "DeleteObject", "handle", $hBMP[0])
    Return '0x' & StringTrimLeft(Hex($ret[0]), 2)
EndFunc   ;==>_PixelSearch2

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  


Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.