Please note that as of October 24, 2014, the Nokia Developer Wiki will no longer be accepting user contributions, including new entries, edits and comments, as we begin transitioning to our new home, in the Windows Phone Development Wiki. We plan to move over the majority of the existing entries. Thanks for all your past and future contributions.

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

CMdaImageFileToBitmapUtility::ConvertL() and masked bitmap images

From Wiki
Jump to: navigation, search
Article Metadata
Platform(s): S60 1st Edition
S60 2nd Edition
S60 2nd Edition (initial release)
S60 1st Edition
Created: User:Technical writer 2 (06 Aug 2003)
Last edited: lpvalente (15 Jun 2013)


CMdaImageFileToBitmapUtility::ConvertL() and masked bitmap images.


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?


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().

40 page views in the last 30 days.