Once the IDSDEMO demonstration program has been started, as described in the section Demo program, the bitmap mode is activated. The image from the FALCON and/or EAGLE is stored in the main memory of the PC. The live video display has to be programmed by the user. This should be done by using the CPU to generate a bitmap and then copying it to the VGA board. This mode has the lowest refresh rate. The great advantage of this mode is that it is compatible with all VGA cards and it is possible to access the image data in the memory. Overlay functions have to be programmed by you. As Windows takes over the control of the image display, the image can be completely or partly overlapped by many other windows and dialog boxes.
Mode = IS_SET_DM_DIB
Fig. 35: Bitmap mode
