plgdrawmode: Get drawing mode (depends on device support!)

`plgdrawmode`: Get drawing mode (depends on device support!)
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#### `plgdrawmode`: Get drawing mode (depends on device support!)

`plgdrawmode (` | `)`;

Get drawing mode. Note only one device driver (cairo) currently supports this at the moment, and for that case the PLINT value returned by this function is one of `PL_DRAWMODE_DEFAULT`, `PL_DRAWMODE_REPLACE`, `PL_DRAWMODE_XOR`, or `PL_DRAWMODE_UNKNOWN`. This function returns `PL_DRAWMODE_UNKNOWN` for the rest of the device drivers. See also `plsdrawmode`.

Redacted form: `plgdrawmode()`

This function is used in example 34.

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