gapinet hp 4700, no screen updates

Hi. I am trying to develop an animation sequence using the c# Wrapper GapiNet dll. However, I tried out all available sample applications but none would work on my hp ipaq 4700. The first screen is drawn and no updates follow.
Is this because the developers of GapiNet focussed on 16bpp frame buffers while the hp 4700 features a frame buffer memory bandwidth of 2 bpp (similar to a monochrome display). If so, why does the application manage to draw the first screen? And how can I adjust the GapiNet code to handle the hp frame buffer?
Any other clues, why the samples won't work?
Thanks
kolya
[623 byte] By [kolya] at [2007-12-16]
# 1

GAPINET.dll is part of a whitepaper describing how to write managed code GAPI solutions. I do not know what’s causing your issue, have you stepped thought the GAPINET.dll code to locate the issue? Can you reproduce the issue using native C++? Take a look at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnnetcomp/html/WrapGAPI2.asp

markpre_ms at 2007-9-9 > top of Msdn Tech,Smart Device Development,.NET Compact Framework...