GreFullArcBoth

GreFullArcBoth draws and fills a full arc centered on the current (X,Y) position. The current line attributes apply to the boundary line, and the current pattern attributes apply to the interior. The dimensions of the arc are defined as a multiplier that is applied to the current arc parameters. GreFullArcBoth does not affect the current position. When the COM_PATH or the COM_AREA flag is set, this function must raise an error.

When correlating, the handling routine must return a hit when the pick aperture intersects the boundary, or is completely within the interior, even when the mix is LEAVEALONE. See Mix Modes.

This function can be hooked by the presentation driver.

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

Syntax

GreFullArcBoth(hdc, fxMultiplier, pInstance, lFunction)

Parameters

hdc (HDC) - input: Device context handle.
fxMultiplier (FIXED) - input: Multiplier.; The value of this parameter defines the size of the required arc in relation to an arc drawn with the current arc parameters. The multiplier is a fixed-point value. The high-order WORD contains the integer portion; the low-order WORD contains the fractional portion. A value of 64KB gives a multiplier of 1. The implementation limit of the multiplier is 255. This value must not be negative.
pInstance (PVOID) - input: Pointer to instance data.
lFunction (ULONG) - input: High-order WORD=flags; low-order WORD=NGreFullArcBoth.

Return Code

rc (LONG) - returns

Return codes.

This function returns an integer (cHits) indicating, where appropriate, whether correlation hits were detected:

GPI_OK Successful
GPI_HITS Successful with correlate hit (returned by display drivers when the correlate 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_ALREADY_IN_AREA
PMERR_BASE_ERROR
PMERR_BITMAP_NOT_SELECTED
PMERR_COORDINATE_OVERFLOW
PMERR_DEV_FUNC_NOT_INSTALLED
PMERR_EXCEEDS_MAX_SEG_LENGTH
PMERR_HDC_BUSY
PMERR_HRGN_BUSY
PMERR_HUGE_FONTS_NOT_SUPPORTED
PMERR_INSUFFICIENT_MEMORY
PMERR_INV_AREA_CONTROL
PMERR_INV_BACKGROUND_COL_ATTR
PMERR_INV_BACKGROUND_MIX_ATTR
PMERR_INV_CHAR_DIRECTION_ATTR
PMERR_INV_CHAR_MODE_ATTR
PMERR_INV_CODEPAGE
PMERR_INV_COLOR_ATTR
PMERR_INV_COLOR_DATA
PMERR_INV_COLOR_INDEX
PMERR_INV_COORD_SPACE
PMERR_INV_COORDINATE
PMERR_INV_HDC
PMERR_INV_HRGN
PMERR_INV_IN_AREA
PMERR_INV_IN_PATH
PMERR_INV_LENGTH_OR_COUNT
PMERR_INV_LINE_TYPE_ATTR
PMERR_INV_MIX_ATTR
PMERR_INV_MULTIPLIER
PMERR_INV_NESTED_FIGURES
PMERR_INV_PATTERN_REF_PT_ATTR
PMERR_INV_PATTERN_SET_ATTR
PMERR_INV_PATTERN_SET_FONT
PMERR_INV_PICK_APERTURE_POSN
PMERR_INV_RECT
PMERR_INV_REGION_CONTROL
PMERR_NOT_IN_AREA
PMERR_NOT_IN_PATH
PMERR_PATH_LIMIT_EXCEEDED
PMERR_PATH_UNKNOWN
PMERR_REGION_IS_CLIP_REGION

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

Sample Code

#define INCL_GRE_ARCS
#include <os2.h>

HDC      hdc;           /*  Device context handle. */
FIXED    fxMultiplier;  /*  Multiplier. */
PVOID    pInstance;     /*  Pointer to instance data. */
ULONG    lFunction;     /*  High-order WORD=flags; low-order WORD=NGreFullArcBoth. */
LONG     rc;            /*  Return codes. */

rc = GreFullArcBoth(hdc, fxMultiplier, pInstance, lFunction);