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Forums » Prof-UIS General Discussion » loading .gif file Collapse All
Subject Author Date
himanshu joshi Mar 28, 2007 - 5:44 AM


could you tell me how to load .gif file as splash screen


Technical Support Mar 28, 2007 - 7:10 AM

At the moment there are two image formats supported in Prof-UIS: bmp and png. There is a CExtBitmap class, written from scratch, which supports 32-bit bitmaps (loading, saving, and serialization) and is 100% supported even on Windows 9x/NT4. There is another class, CExtBitmapSkin, which is derived from CExtBitmap and supports 32-bit png images. CExtBitmapSkin is implemented using the well known and free LibPNG and ZLib libraries.

It would not be a problem to use other libraries for reading GIF images but we are using mostly 32-bit images with alpha channel and lossless formats. So other formats have been considered redundant so far.

Suhai Gyorgy Mar 28, 2007 - 6:24 AM

There’s a class called CImage, a shared class of MFC and ATL. It can load gif file and has HBITMAP member variable, so you can use it instead of CBitmap. If some function expects a pointer to a CBitmap object, use CBitmap::FromHandle, pass it your CImage HBITMAP, and use the returned CBitmap*:
    CImage image;
    CBitmap* pBitmap = CBitmap::FromHandle(image.m_hBitmap);

In ProfStudio sample you can see the code needed to make a splash screen.