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Read image pixel by pixel

Posted: Mon Aug 03, 2009 11:13 am
by yamuna
Hi

Can you please tell me an method to read image pixel by pixel?

Ta

Re: Read image pixel by pixel

Posted: Wed Aug 19, 2009 3:21 pm
by Dhananjaya
You can use following APIs to write and read image pixel by pixel

Code: Select all

Public Declare Function GetPixel _
               Lib "gdi32" (ByVal hdc As Long, _
                            ByVal x As Long, _
                            ByVal y As Long) As Long

Public Declare Function SetPixelV _
               Lib "gdi32" (ByVal hdc As Long, _
                            ByVal x As Long, _
                            ByVal y As Long, _
                            ByVal crColor As Long) As Long