Images mmio compared to GBM

[Jan-Erik]

Hi,

I've used the example provided with the os2 toolkit and rewrote parts
of it as a class in C++ to display images as an exercise to learn how
to do things in OS/2. The resulting exe display the image (and
additional smooth "animation") as expected and as I want it.

I then tried the same thing with GBM and use gbmv.c source code as a
guide for the C++ class but stumble on that GPICreateBitmap doesn't
succeed and that a black square show up instead of the image.

Anyone that can share hands on knowledge? C++ code that is.

//Jan-Erik