hdc (HDC) - input

Device context handle.

hrgn (HRGN) - input

Region handle.

pdpt (PPOINTL) - input

Pointer to offset by which region is to be moved, in device coordinates:

dx

X offset
dy
Y offset

pInstance (PVOID) - input

Pointer to instance data.

lFunction (ULONG) - input

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

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_COORDINATE_OVERFLOW PMERR_HRGN_BUSY
PMERR_INV_COORDINATE
PMERR_INV_HRGN
PMERR_REGION_IS_CLIP_REGION

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

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