Difference between revisions of "GreGetArcParameters"
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(Created page with "GreGetArcParameters stores the current arc parameters in the buffer addressed by pArcParms. This function can be hooked by the presentation driver. ;Simulation support: Th...") |
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Revision as of 03:01, 16 January 2020
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.
Contents
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);