PixelGetColor for an area instead of a point

[DasAuto]

Hi Fellow Coders

I am looking for an Efficient user function of getting an area of pixels' colors and return a multi dimensional  array. I am not asking for a simple nested for loops that does pixelgetcolor for each pixel, I am more of looking for a more root level approach that is more efficient and fast.

Thanks

[Edano]

unless you don't invent a function, you will have to do it with loops. but what's the problem ? the speed probably ?

E.

Edited July 26, 2013 by Edano

[DasAuto]

Hi, thanks for replying.

I am actually looking for an invented function using some magical windows handles... or something directly from the graphic card's rasterizer or whatever. according to my half baked intuition a frame was put on screen from "the frame buffer" ( I don't really know) as an array the first place. I would like to read directly from that buffer in bulk, not just one pixel at a time.

thanks

[Edano]

_ScreenCapture_Capture() returns a Hbitmap handle. and this can be handled by GDUIPlus. i just don't see how to get the info you want. but you find some advanced GDIPlus 1.1 functions in the forum that are not documented yet.

 

E

[Edano]

recommended source: http://www.jose.it-berater.org/gdiplus/iframe/index.htm

[DasAuto]

Thank you so much for the info, I will be looking into it.

[junkew]

Search for findbmp in the forums and read the related links and functions

[Blue_Drache]

Um ... what did I use waaaaaaaaaay back when.... Oh yeah ...

PixelChecksum()

Though ... this doesn't return a multidimensional array, only the integer (or hex) value of the region's pixel colours added together.

I used it as a very crude and dirty form of an OCR in a specific situation.

Edited July 29, 2013 by Blue_Drache