/*++
* @name DxEngGetDeviceGammaRamp
* @implemented
*
* The function DxEngGetDeviceGammaRamp gets the gamma ramp to dxg.sys.
* @param HDEV hPDev
* The hdev.
*
* @param PGAMMARAMP Ramp
* Pointer to store the gamma ramp value in.
*
* @return
*Returns TRUE for success, FALSE for failure
*
* @remarks.
* None
*
*--*/
BOOL
APIENTRY
DxEngGetDeviceGammaRamp(HDEV hPDev, PGAMMARAMP Ramp)
{
DPRINT1("ReactX Calling : DxEngGetDeviceGammaRamp\n");
return IntGetDeviceGammaRamp(hPDev, Ramp);
}
BOOL
APIENTRY
NtGdiGetDeviceGammaRamp(HDC hDC,
LPVOID Ramp)
{
BOOL Ret;
PDC dc;
NTSTATUS Status = STATUS_SUCCESS;
PGAMMARAMP SafeRamp;
if (!Ramp) return FALSE;
dc = DC_LockDc(hDC);
if (!dc)
{
EngSetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
SafeRamp = ExAllocatePoolWithTag(PagedPool, sizeof(GAMMARAMP), GDITAG_ICM);
if (!SafeRamp)
{
DC_UnlockDc(dc);
EngSetLastError(STATUS_NO_MEMORY);
return FALSE;
}
Ret = IntGetDeviceGammaRamp((HDEV)dc->ppdev, SafeRamp);
if (!Ret) return Ret;
_SEH2_TRY
{
ProbeForWrite( Ramp,
sizeof(PVOID),
1);
RtlCopyMemory( Ramp,
SafeRamp,
sizeof(GAMMARAMP));
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
Status = _SEH2_GetExceptionCode();
}
_SEH2_END;
DC_UnlockDc(dc);
ExFreePoolWithTag(SafeRamp, GDITAG_ICM);
if (!NT_SUCCESS(Status))
{
SetLastNtError(Status);
return FALSE;
}
return Ret;
}
