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# FALCON/EAGLE user manual 4.62

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Comparision of the display modes | Scroll Previous Top Next More

Depending on the used display mode there are differences in the performance and compatibility of graphic boards.

| Direct3D replaces the out-dated DirectDraw on current Windows systems.

Mode | Graphic card compatibility | Performance | Overlay
--- | --- | --- | ---
Bitmap | llll | l | x*1
Direct3D | lll | llll | x
DirectDraw Back-Buffer | lll | ll | x
DirectDraw Primary-Surface | ll | lll |
DirectDraw Overlay-Surface | l | llll | x

*1 For this there are no special SDK functions available. Overlay must be programmed separately.

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