GreGetPageViewport

GreGetPageViewport loads the buffer indicated by prclViewport with the page viewport coordinates.

This function can be hooked by the presentation driver.


 * Simulation support: This function is simulated by a handling routine in the graphics engine.

Syntax
GreGetPageViewport(hdc, prclViewport, pInstance, lFunction)

Parameters

 * hdc (HDC) - input:Device context handle.
 * prclViewport (PRECTL) - input:Pointer to page viewport boundaries.
 * pInstance (PVOID) - input:Pointer to instance data.
 * lFunction (ULONG) - input:High-order WORD=flags; low-order WORD=NGreGetPageViewport.

Returns

 * fSuccess (BOOL) - returns:Return codes.
 * This function returns BOOLEAN (fSuccess).
 * TRUE Successful
 * FALSE Error
 * Possible Errors Detected: When an error is detected, the handling routine must call WinSetErrorInfo to post the condition. Error codes for conditions that the handling routine is expected to check include:
 * PMERR_HDC_BUSY
 * PMERR_INV_HDC
 * Refer to the "Error Explanations" section in the Presentation Manager Programming Reference for further explanation.

Sample

 * 1) define INCL_GRE_XFORMS
 * 2) include 

HDC      hdc;           /*  Device context handle. */ PRECTL   prclViewport;  /*  Pointer to page viewport boundaries. */ PVOID    pInstance;     /*  Pointer to instance data. */ ULONG    lFunction;     /*  High-order WORD=flags; low-order WORD=NGreGetPageViewport. */ BOOL     fSuccess;      /*  Return codes. */

fSuccess = GreGetPageViewport(hdc, prclViewport, pInstance, lFunction);