GreGetGlobalViewingXform

GreGetGlobalViewingXform queries the global viewing transform matrix. On completion, paXformData points to an array of two-dimensional values that defines the global viewing transform matrix.

This function can be hooked by the presentation driver.


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

Syntax
GreGetGlobalViewingXform(hdc, paXformData, pInstance, lFunction)

Parameters

 * hdc (HDC) - input:Device context handle.
 * paXformData (PXFORM) - input:Pointer to return data
 * Pointer to return data in which the array of six matrix elements (M11, M12, M21, M22, M41, and M42) are to be stored.


 * pInstance (PVOID) - input:Pointer to instance data.
 * lFunction (ULONG) - input:High-order WORD=flags; low-order WORD=NGreGetGlobalViewingXform.

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.