GpiQueryPageViewport (1.2)
◄Function Group► ◄Overview► ◄Up► ◄Next► ◄Previous►
────────────────────────────────────────────────────────────────────────────
#define INCL_GPITRANSFORMS
BOOL GpiQueryPageViewport(hps, prclViewport)
HPS hps; /* presentation-space handle */
PRECTL prclViewport; /* address of structure for viewport */
The GpiQueryPageViewport function retrieves the page viewport. The function
cannot be used if no device context is associated with the presentation
space.
Parameter Description
────────────────────────────────────────────────────────────────────────────
hps Identifies the presentation space.
prclViewport Points to the RECTL structure that receives the page
viewport.
Return Value
The return value is GPI_OK if the function is successful or GPI_ERROR if an
error occurred.
Errors
Use the WinGetLastError function to retrieve the error value, which may be
the following:
PMERR_INV_HPS
PMERR_PS_BUSY
See Also
GpiCreatePS, GpiSetPageViewport, RECTL
♦