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Hi! I looked for them on google but I have not found anything. Could anybody give me a link?

What the hell is "Bitmap 3, 4, 5"?

Hi,

Love4Boobies wrote:What the hell is "Bitmap 3, 4, 5"?

Probably the BMP file format; where "3, 4, 5" corresponds to "Windows V3, Windows V4 and Windows V5".

@Karlosoft: You should be able to figure it out from the Wikipedia page (in the link above), especially if you look at the "External Links" section.


Cheers,

Brendan\

Hmm, I don't think those are different formats. I went looking for the specs myself a few years ago - you'll find the information you need on MSDN, obviously. IIRC, there are only 2 types - DIB (Device Independent Bitmap) and DDB (guess).

Not sure that's what he meant though, who calls Windows 9x "4" and XP "5"? (Even if the versions numbers do correspond)

Yeah they aren't They are different versions of the bitmap specs.
For example version five allow to use an alpha channel

Hmm, I wasn't aware of alpha channels in BMPs. Apparently, they are stored as separate bitmaps. You should look into a different format though, BMPs take a lot of disk space. Even if they are probably the easiest format de (en/de)code, PCX is almost equally easy. My personal favourite is PNG.

The structures are actually named BITMAPINFOHEADER, BITMAPV4HEADER and BITMAPV5HEADER. However, BITMAPINFOHEADER was invented before Windows 3.0 (it was inherited from OS/2, I think).

They are defined in WinGDI.h in any SDK release, or probably in mingw's include files.