## Presentation Device Driver Reference for OS/2

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### GreQueryDeviceCaps - Remarks

Calls to GreQueryDeviceCaps would not usually require the handling routine to return data in all fields in the buffer. The parameters lIndex and cOutData identify the offset to the first field and the count of consecutive field for returned data.

Note: In OS/2 2.0, if GreQueryDeviceCaps returns data in the CAPS_DRIVER_ VERSION field, the return value must be hex 00000200.