GpiQueryPickApertureSize

This function returns the value of the pick-aperture size, as set by the GpiSetPickApertureSize function.

Syntax
GpiQueryPickApertureSize(hps, psizlSize)

Parameters

 * hps (HPS): Presentation-space handle.
 * psizlSize (PSIZEL) : Pick-aperture size.
 * Size of the pick aperture, in presentation-page coordinates.

Return Code

 * rc (BOOL): Success indicator.
 * TRUE Successful completion
 * FALSE Error occurred.

Errors
Possible returns from WinGetLastError
 * PMERR_INV_HPS (0x207F) : An invalid presentation-space handle was specified.
 * PMERR_PS_BUSY (0x20F4) : An attempt was made to access the presentation space from more than one thread simultaneously.
 * PMERR_INV_DC_TYPE (0x2060) : An invalid type parameter was specified with DevOpenDC, or a function was issued that is invalid for a OD_METAFILE_NOQUERY device context.

Example Code
In this example we query the pick-aperture size, as set by the GpiSetPickApertureSize call. 
 * 1) define INCL_GPICORRELATION
 * 2) include 

BOOL flResult; HPS hps; /* Presentation space handle. */ SIZEL sizel; /* Pick-aperture position. */ LONG xcoord, ycoord; flResult = GpiQueryPickApertureSize(hps, &sizel); xcoord = sizel.cx; ycoord = sizel.cy; 