I wrote the following code (C++ Win32) to capture a game window screen and get pixel color array from the image. Function autoB() does the job. Then I draw the result array into my window to visua...

I have a call to GetDIBits that works perfectly in 32-bit, but fails on 64-bit. Despite the different values for the handles the content of the bitmapinfo structure are the same. Here is the small...

I'm grabbing a portion of the screen and scanning through the pixels for a certain color range. I looked at MSDN's Capturing an Image example and know how to use the functions. I can get the bits...

I'm trying to create a function which is equivalent to the windows API GetPixel() function, but I want to create a bitmap of my screen and then read that buffer. This is what I've got (Mostly copy...

I was using GetDIBits to get bitmap data from a screen compatible device context into a DIB of a certain format. I was under the impression that the DC was necessary only for synthesizing a color t...

I have an HBITMAP containing alpha channel data. I can successfully render this using the ::AlphaBlend GDI function. However, when I call the ::GetPixel GDI function, I never get back values with...