hdc (HDC) - input

Device context handle.

prclGraphicsField (PRECTL) - input

Pointer to graphics field.

RECTL structure:

xLeft

Minimum x-coordinate of graphics field
yBottom
Minimum y-coordinate
xRight
Maximum x-coordinate of graphics field
yTop
Maximum y-coordinate
An error is raised when xLeft is greater than xRight, or yBottom is greater than yTop.

pInstance (PVOID) - input

Pointer to instance data.

lFunction (ULONG) - input

High-order WORD=flags; low-order WORD=NGreSetGraphicsField.

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_COORDINATE
PMERR_INV_GRAPHICS_FIELD
PMERR_INV_HDC
PMERR_INV_IN_AREA
PMERR_INV_IN_PATH

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