PD> I'm looking for some GPI-functions for grabbing a rectangle from
PD> my window.   Currently I'm working on a library for sprites.  My
PD> idea is before actually putting a sprite (=bitmap) on the screen, I
PD> have to save the information that will be overwritten by my sprite.

PD> Thus I need a function (like Borland's GETIMAGE) to capture the
PD> contents of an area of pels (e.g. in a bitmap).

Pascal --

There is an example in the OS/2 2.0 Programming Guide (Volume III, pp.
8-18 & 8-19) that does what you want to do. The steps are as follows:

 1. Create a BITMAPINFO2 structure compatible with your current display.

 2. Create a memory device context with DevOpenDC()

 3. Create a memory presentation space and associate it with your memory DC

 4. Call GpiSetBitmap() to set your bitmap into the memory presentation space

 5. Call GpiBitBlt() to copy the data from your display PS to your memory PS

 6. Call GpiSetBitmap() again to release your bitmap from the memory DC

 7. Delete the memory DC and memory PS (this step is omitted from the example)

Simple, huh?

-- DON

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