Talk:Bitmap

It seems quite a few of the examples don't fulfill the task. The task asks for 3 procedures, Create, Get, and Set, but only two or three of the examples have them.

Also, I'm kind of unclear on the "get the color" procedure. For example, C++ returns a boolean? I thought the point was to return the pixel's color? --Mbishop 08:02, 20 February 2009 (UTC)

The boolean return value indicates success. The C++ GetPixel routine returns the color by modifying three variables the caller passes into it. The alternative would be to return a special data type, or a packed integer. Many C++ environments have the special datatype, such as Win32's RGBTRIPLE, RGBQUAD and COLORREF, but it's not strictly C++, and they're not really necessary. And returning a packed integer would require the caller to do their own processing. Using pointers or references as arguments is a common idiom in C++. However, I can add another C++ example that provides those three types as arguments to SetPixel and return values for GetPixel, and throws exceptions on failure instead of returning false. --Short Circuit 09:00, 20 February 2009 (UTC)