open a png file and read the color of a particular pixel?

[Guest]

I want to open a png file and read the color of a particular pixel.

I found that someone wrote this for bmp files:

; #FUNCTION# ====================================================================================================================

; Name...........: _PixelRead

; Description ...: Returns the color at the pixel coordinate and BMPHandle given.

; Syntax.........: _PixelRead($BMPHandle,$X,$Y)

; Parameters ....: $BMPHandle - ""

; $X - X coordinate of the pixel

; $Y - ""

; Return values .: Success - A Color as a hex string in RRGGBB format

; #FUNCTION# ====================================================================================================================

Func _PixelRead(ByRef $BMPHandle,$x,$y)

But I prefer to work on a png or jpg..

Edited September 18, 2012 by Guest

[JLogan3o13]

Why not use PixelGetColor? That will work on a png.

[Guest]

How exactly?

I do not know how to use it for png

[iCode]

what logan is suggesting i think is to forget about the file type. PixelGetColor() works with anything - the png has been opened and is visible on the desktop, so PixelGetColor() will work. look at the example code

also see PixelCoordMode() under AutoItSetOption

if you're wanting to get the color based on mouse position, see MouseGetPos()

[Yashied]

_GDIPlus_BitmapCreateFromFile() + _GDIPlus_BitmapGetPixel() from