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Revision as of 19:04, 15 June 2013 by lpvalente (Talk | contribs)

CMdaImageFileToBitmapUtility::ConvertL() and masked bitmap images

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Article Metadata
Compatibility
Platform(s): S60 1st Edition
S60 2nd Edition
S60 2nd Edition (initial release)
S60 1st Edition
Article
Created: User:Technical writer 2 (06 Aug 2003)
Last edited: lpvalente (15 Jun 2013)

Overview

CMdaImageFileToBitmapUtility::ConvertL() and masked bitmap images.

Description

When using CMdaImageFileToBitmapUtility to convert a .gif image with a mask to bitmap (CFbsBitmap), I get an empty bitmap for both the image and the mask. What is wrong?

Solution

Mask bitmaps should always be 2-color (monochrome) bitmaps. While some APIs accept mask bitmaps with a higher color depth, they may not work correctly. Also, monochrome mask bitmaps reserve less memory. The same applies, for example, to CWindowGc::BitBltMasked().

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