
With this few lines of code you can simply add a color filter to a picture (see the ScreenShot!!!). The code is simple and very well comented. Enjoy
API DeclarationsPrivate Declare Function GetPixel Lib "gdi32" (ByVal hdc As Long, ByVal X As Long, ByVal Y As Long) As Long
Private Declare Function SetPixel Lib "gdi32" (ByVal hdc As Long, ByVal X As Long, ByVal Y As Long, ByVal crColor As Long) As Long