GreGetArcParameters

GreGetArcParameters stores the current arc parameters in the buffer addressed by pArcParms.

This function can be hooked by the presentation driver.

Simulation support

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

Syntax

GreGetArcParameters(hdc, pArcParms, pInstance, lFunction)

Parameters

hdc (HDC) - input

Device context handle.

pArcParms (PARCPARAMS) - input

Pointer to ARCPARAMS structure.

pInstance (PVOID) - input

Pointer to instance data.

lFunction (ULONG) - input

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

Returns

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_HDC

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

Sample

#define INCL_GRE_ARCS
#include <os2.h>

HDC           hdc;        /*  Device context handle. */
PARCPARAMS    pArcParms;  /*  Pointer to ARCPARAMS structure. */
PVOID         pInstance;  /*  Pointer to instance data. */
ULONG         lFunction;  /*  High-order WORD=flags; low-order WORD=NGreGetArcParameters. */
BOOL          fSuccess;   /*  Return codes. */

fSuccess = GreGetArcParameters(hdc, pArcParms, pInstance, lFunction);