Parameters

DocNum	Document index for the document that you want a bitmap picture of (1-32). In practice this will generally (though not necessarily) be the return value of a call to DPlot_Plot.
cx, cy	Requested width and height of the bitmap, in pixels.

Return Values

0	Generic error attempting to communicate with DPlot. This most often indicates that DPlot is currently busy, e.g. a modal dialog box is open.
<>0	Handle to a device-dependent bitmap. This picture may be drawn in your application with the Windows API functions BitBlt and/or StretchBlt.

Remarks
Palette information is not returned, so this function does not work particularly well with 256 (or fewer) color displays.