static HRESULT osx_set_ffgain(JoystickImpl *This, const DIPROPDWORD *header)
{
UInt32 v;
HRESULT hr;
if(!This->ff)
return DIERR_UNSUPPORTED;
v = header->dwData;
hr = osx_to_win32_hresult(FFDeviceSetForceFeedbackProperty(This->ff, FFPROP_FFGAIN, &v));
TRACE("returning: %08x\n", hr);
return hr;
}
/*
* Sets the gain.
*/
int
SDL_SYS_HapticSetGain(SDL_Haptic * haptic, int gain)
{
HRESULT ret;
Uint32 val;
val = gain * 100; /* Mac OS X uses 0 to 10,000 */
ret = FFDeviceSetForceFeedbackProperty(haptic->hwdata->device,
FFPROP_FFGAIN, &val);
if (ret != FF_OK) {
return SDL_SetError("Haptic: Error setting gain: %s.", FFStrError(ret));
}
return 0;
}
/*
* Sets the autocentering.
*/
int
SDL_SYS_HapticSetAutocenter(SDL_Haptic * haptic, int autocenter)
{
HRESULT ret;
Uint32 val;
/* Mac OS X only has 0 (off) and 1 (on) */
if (autocenter == 0)
val = 0;
else
val = 1;
ret = FFDeviceSetForceFeedbackProperty(haptic->hwdata->device,
FFPROP_AUTOCENTER, &val);
if (ret != FF_OK) {
return SDL_SetError("Haptic: Error setting autocenter: %s.",
FFStrError(ret));
}
return 0;
}
