hdc (HDC) - input

Device context handle.

paptlPoint (PPOINTL) - input

Pointer to ArcData array.

Pointer to an array of POINTL structures giving the mid- and end-points of the arc. If the mid-point is coincident with the start or end point, a straight line is drawn from the start point to the end point. If COM_TRANSFORM is not set, the function expects the array of points to be in screen coordinates.

x

X-coordinate of point
y
Y-coordinate of point

pInstance (PVOID) - input

Pointer to instance data.

lFunction (ULONG) - input

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

rc (LONG) - returns

On completion, this function returns an integer (cHits) indicating, where appropriate, whether correlation hits were detected.

GPI_OK

Successful
GPI_HITS
Successful with correlation hit (returned by display drivers when the correlation flag is ON and a hit is detected)
GPI_ERROR
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_BASE_ERROR
PMERR_BITMAP_NOT_SELECTED
PMERR_COORDINATE_OVERFLOW
PMERR_DEV_FUNC_NOT_INSTALLED
PMERR_HDC_BUSY
PMERR_INV_COLOR_DATA
PMERR_INV_COLOR_INDEX
PMERR_INV_COORD_SPACE
PMERR_INV_HDC
PMERR_INV_IN_AREA
PMERR_INV_IN_PATH
PMERR_INV_LENGTH_OR_COUNT
PMERR_INV_MATRIX_ELEMENT
PMERR_INV_PICK_APERTURE_POSN
PMERR_INV_RECT
PMERR_PATH_LIMIT_EXCEEDED
PMERR_PATH_UNKNOWN
Refer to the "Error Explanations" section in the Presentation Manager Programming Reference for further explanation.

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