## Presentation Device Driver Reference for OS/2

[prev][next][parent][TOC]

### GreConvertWithMatrix - Parameters

hdc (HDC) - input Device context handle.

paptlPoint (PPOINTL) - input Pointer to array of (X,Y) coordinates to transform. The result is also returned to this parameter.

cPoints (LONG) - input Count of coordinate pairs in the array.

paXform (PXFORM) - input Pointer to an array of six matrix elements for two -dimensional formation. These are M11, M12, M21, M22, M41, and M42.

pInstance (PVOID) - input Pointer to instance data.

lFunction (ULONG) - input High-order WORD=flags; low-order WORD= NGreConvertWithMatrix.

fSuccess (BOOL) - returns 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_COORDINATE_OVERFLOW
PMERR_INV_LENGTH_OR_COUNT

Refer to the "Error Explanations" section in the Presentation Manager Programming Reference for further explanation.