Exemplo n.º 1
0
DECLSPEC_HIDDEN HRESULT linuxinput_get_info_W(
	int fd,
	REFGUID rguid,
	LPDIEFFECTINFOW info)
{
    DWORD type = typeFromGUID(rguid);

    TRACE("(%d, %s, %p) type=%d\n", fd, _dump_dinput_GUID(rguid), info, type);

    if (!info) return E_POINTER;

    if (info->dwSize != sizeof(DIEFFECTINFOW)) return DIERR_INVALIDPARAM;

    info->guid = *rguid;

    info->dwEffType = type;
    /* the event device API does not support querying for all these things
     * therefore we assume that we have support for them
     * that's not as dangerous as it sounds, since drivers are allowed to
     * ignore parameters they claim to support anyway */
    info->dwEffType |= DIEFT_DEADBAND | DIEFT_FFATTACK | DIEFT_FFFADE
                    | DIEFT_POSNEGCOEFFICIENTS | DIEFT_POSNEGSATURATION
                    | DIEFT_SATURATION | DIEFT_STARTDELAY; 

    /* again, assume we have support for everything */
    info->dwStaticParams = DIEP_ALLPARAMS;
    info->dwDynamicParams = info->dwStaticParams;

    /* yes, this is windows behavior (print the GUID_Name for name) */
    MultiByteToWideChar(CP_ACP, 0, _dump_dinput_GUID(rguid), -1, 
                        info->tszName, MAX_PATH);

    return DI_OK;
}
Exemplo n.º 2
0
static HRESULT WINAPI LinuxInputEffectImpl_SetParameters(
        LPDIRECTINPUTEFFECT iface,
        LPCDIEFFECT peff,
        DWORD dwFlags)
{
    LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
    DWORD type = typeFromGUID(&This->guid);
    HRESULT retval = DI_OK;

    TRACE("(this=%p,%p,%d)\n", This, peff, dwFlags);

    dump_DIEFFECT(peff, &This->guid, dwFlags);

    if ((dwFlags & ~DIEP_NORESTART & ~DIEP_NODOWNLOAD & ~DIEP_START) == 0) {
	/* set everything */
	dwFlags = DIEP_AXES | DIEP_DIRECTION | DIEP_DURATION | DIEP_ENVELOPE |
	    DIEP_GAIN | DIEP_SAMPLEPERIOD | DIEP_STARTDELAY | DIEP_TRIGGERBUTTON |
	    DIEP_TRIGGERREPEATINTERVAL | DIEP_TYPESPECIFICPARAMS;
    }

    if (dwFlags & DIEP_AXES) {
	/* the linux input effect system only supports one or two axes */
	if (peff->cAxes > 2)
	    return DIERR_INVALIDPARAM;
	else if (peff->cAxes < 1)
	    return DIERR_INCOMPLETEEFFECT;
	This->first_axis_is_x = peff->rgdwAxes[0] == DIJOFS_X;
    }

    /* some of this may look funky, but it's 'cause the linux driver and directx have
     * different opinions about which way direction "0" is.  directx has 0 along the x
     * axis (left), linux has it along the y axis (down). */ 
    if (dwFlags & DIEP_DIRECTION) {
	if (peff->cAxes == 1) {
	    if (peff->dwFlags & DIEFF_CARTESIAN) {
		if (dwFlags & DIEP_AXES) {
		    if (peff->rgdwAxes[0] == DIJOFS_X && peff->rglDirection[0] >= 0)
			This->effect.direction = 0x4000;
		    else if (peff->rgdwAxes[0] == DIJOFS_X && peff->rglDirection[0] < 0)
			This->effect.direction = 0xC000;
		    else if (peff->rgdwAxes[0] == DIJOFS_Y && peff->rglDirection[0] >= 0)
			This->effect.direction = 0;
		    else if (peff->rgdwAxes[0] == DIJOFS_Y && peff->rglDirection[0] < 0)
			This->effect.direction = 0x8000;
		}
	    } else {
		/* one-axis effects must use cartesian coords */
		return DIERR_INVALIDPARAM;
	    }
	} else { /* two axes */
	    if (peff->dwFlags & DIEFF_CARTESIAN) {
		LONG x, y;
		if (This->first_axis_is_x) {
		    x = peff->rglDirection[0];
		    y = peff->rglDirection[1];
		} else {
		    x = peff->rglDirection[1];
		    y = peff->rglDirection[0];
		}
		This->effect.direction = (int)((3 * M_PI / 2 - atan2(y, x)) * -0x7FFF / M_PI);
	    } else {
		/* Polar and spherical are the same for 2 axes */
		/* Precision is important here, so we do double math with exact constants */
		This->effect.direction = (int)(((double)peff->rglDirection[0] - 90) / 35999) * 0x7FFF;
	    }
	}
    }

    if (dwFlags & DIEP_DURATION)
	This->effect.replay.length = peff->dwDuration / 1000;

    if (dwFlags & DIEP_ENVELOPE) {
        struct ff_envelope* env;
        if (This->effect.type == FF_CONSTANT) env = &This->effect.u.constant.envelope;
        else if (This->effect.type == FF_PERIODIC) env = &This->effect.u.periodic.envelope;
        else if (This->effect.type == FF_RAMP) env = &This->effect.u.ramp.envelope;
        else env = NULL; 

	if (peff->lpEnvelope == NULL) {
	    /* if this type had an envelope, reset it */
	    if (env) {
		env->attack_length = 0;
		env->attack_level = 0;
		env->fade_length = 0;
		env->fade_level = 0;
	    }
	} else {
	    /* did we get passed an envelope for a type that doesn't even have one? */
	    if (!env) return DIERR_INVALIDPARAM;
	    /* copy the envelope */
	    env->attack_length = peff->lpEnvelope->dwAttackTime / 1000;
	    env->attack_level = (peff->lpEnvelope->dwAttackLevel / 10) * 32;
	    env->fade_length = peff->lpEnvelope->dwFadeTime / 1000;
	    env->fade_level = (peff->lpEnvelope->dwFadeLevel / 10) * 32;
	}
    }

    /* Gain and Sample Period settings are not supported by the linux
     * event system */
    if (dwFlags & DIEP_GAIN) {
	This->gain = 0xFFFF * peff->dwGain / 10000;
	TRACE("Effect gain requested but no effect gain functionality present.\n");
    }

    if (dwFlags & DIEP_SAMPLEPERIOD)
	TRACE("Sample period requested but no sample period functionality present.\n");

    if (dwFlags & DIEP_STARTDELAY)
	This->effect.replay.delay = peff->dwStartDelay / 1000;

    if (dwFlags & DIEP_TRIGGERBUTTON) {
	if (peff->dwTriggerButton != -1) {
	    FIXME("Linuxinput button mapping needs redoing, assuming we're using a joystick.\n");
	    FIXME("Trigger button translation not yet implemented!\n");
	}
	This->effect.trigger.button = 0;
    }

    if (dwFlags & DIEP_TRIGGERREPEATINTERVAL)
	This->effect.trigger.interval = peff->dwTriggerRepeatInterval / 1000;

    if (dwFlags & DIEP_TYPESPECIFICPARAMS) {
	if (!(peff->lpvTypeSpecificParams))
	    return DIERR_INCOMPLETEEFFECT;
	if (type == DIEFT_PERIODIC) {
            LPCDIPERIODIC tsp;
            if (peff->cbTypeSpecificParams != sizeof(DIPERIODIC))
                return DIERR_INVALIDPARAM;
            tsp = peff->lpvTypeSpecificParams;
	    This->effect.u.periodic.magnitude = (tsp->dwMagnitude / 10) * 32;
	    This->effect.u.periodic.offset = (tsp->lOffset / 10) * 32;
	    This->effect.u.periodic.phase = (tsp->dwPhase / 9) * 8; /* == (/ 36 * 32) */
	    This->effect.u.periodic.period = tsp->dwPeriod / 1000;
	} else if (type == DIEFT_CONSTANTFORCE) {
            LPCDICONSTANTFORCE tsp;
            if (peff->cbTypeSpecificParams != sizeof(DICONSTANTFORCE))
                return DIERR_INVALIDPARAM;
            tsp = peff->lpvTypeSpecificParams;
	    This->effect.u.constant.level = (max(min(tsp->lMagnitude, 10000), -10000) / 10) * 32;
	} else if (type == DIEFT_RAMPFORCE) {
            LPCDIRAMPFORCE tsp;
            if (peff->cbTypeSpecificParams != sizeof(DIRAMPFORCE))
                return DIERR_INVALIDPARAM;
            tsp = peff->lpvTypeSpecificParams;
	    This->effect.u.ramp.start_level = (tsp->lStart / 10) * 32;
	    This->effect.u.ramp.end_level = (tsp->lEnd / 10) * 32;
	} else if (type == DIEFT_CONDITION) {
            LPCDICONDITION tsp = peff->lpvTypeSpecificParams;
            if (peff->cbTypeSpecificParams == sizeof(DICONDITION)) {
		/* One condition block.  This needs to be rotated to direction,
		 * and expanded to separate x and y conditions. */
		int i;
		double factor[2];
		factor[0] = asin((This->effect.direction * 3.0 * M_PI) / 0x7FFF);
		factor[1] = acos((This->effect.direction * 3.0 * M_PI) / 0x7FFF);
                for (i = 0; i < 2; ++i) {
                    This->effect.u.condition[i].center = (int)(factor[i] * (tsp->lOffset / 10) * 32);
                    This->effect.u.condition[i].right_coeff = (int)(factor[i] * (tsp->lPositiveCoefficient / 10) * 32);
                    This->effect.u.condition[i].left_coeff = (int)(factor[i] * (tsp->lNegativeCoefficient / 10) * 32); 
                    This->effect.u.condition[i].right_saturation = (int)(factor[i] * (tsp->dwPositiveSaturation / 10) * 32);
                    This->effect.u.condition[i].left_saturation = (int)(factor[i] * (tsp->dwNegativeSaturation / 10) * 32);
                    This->effect.u.condition[i].deadband = (int)(factor[i] * (tsp->lDeadBand / 10) * 32);
                }
	    } else if (peff->cbTypeSpecificParams == 2 * sizeof(DICONDITION)) {
		/* Two condition blocks.  Direct parameter copy. */
		int i;
                for (i = 0; i < 2; ++i) {
		    This->effect.u.condition[i].center = (tsp[i].lOffset / 10) * 32;
		    This->effect.u.condition[i].right_coeff = (tsp[i].lPositiveCoefficient / 10) * 32;
		    This->effect.u.condition[i].left_coeff = (tsp[i].lNegativeCoefficient / 10) * 32;
		    This->effect.u.condition[i].right_saturation = (tsp[i].dwPositiveSaturation / 10) * 32;
		    This->effect.u.condition[i].left_saturation = (tsp[i].dwNegativeSaturation / 10) * 32;
		    This->effect.u.condition[i].deadband = (tsp[i].lDeadBand / 10) * 32;
		}
	    } else {
                return DIERR_INVALIDPARAM;
	    }
	} else {
	    FIXME("Custom force types are not supported\n");	
	    return DIERR_INVALIDPARAM;
	}
    }

    if (!(dwFlags & DIEP_NODOWNLOAD))
	retval = LinuxInputEffectImpl_Download(iface);
    if (retval != DI_OK)
	return DI_DOWNLOADSKIPPED;

    if (dwFlags & DIEP_NORESTART)
	TRACE("DIEP_NORESTART: not handled (we have no control of that).\n");

    if (dwFlags & DIEP_START)
	retval = LinuxInputEffectImpl_Start(iface, 1, 0);
    if (retval != DI_OK)
	return retval;
 
    return DI_OK;
}   
Exemplo n.º 3
0
DECLSPEC_HIDDEN HRESULT linuxinput_create_effect(
	int* fd,
	REFGUID rguid,
        struct list *parent_list_entry,
	LPDIRECTINPUTEFFECT* peff)
{
    LinuxInputEffectImpl* newEffect = HeapAlloc(GetProcessHeap(), 
	HEAP_ZERO_MEMORY, sizeof(LinuxInputEffectImpl));
    DWORD type = typeFromGUID(rguid);

    newEffect->IDirectInputEffect_iface.lpVtbl = &LinuxInputEffectVtbl;
    newEffect->ref = 1;
    newEffect->guid = *rguid;
    newEffect->fd = fd;
    newEffect->gain = 0xFFFF;

    /* set the type.  this cannot be changed over the effect's life. */
    switch (type) {
	case DIEFT_PERIODIC: 
	    newEffect->effect.type = FF_PERIODIC;
	    if (IsEqualGUID(rguid, &GUID_Sine)) {
		newEffect->effect.u.periodic.waveform = FF_SINE;
	    } else if (IsEqualGUID(rguid, &GUID_Triangle)) {
                newEffect->effect.u.periodic.waveform = FF_TRIANGLE;
            } else if (IsEqualGUID(rguid, &GUID_Square)) {
                newEffect->effect.u.periodic.waveform = FF_SQUARE;
            } else if (IsEqualGUID(rguid, &GUID_SawtoothUp)) {
                newEffect->effect.u.periodic.waveform = FF_SAW_UP;
            } else if (IsEqualGUID(rguid, &GUID_SawtoothDown)) {
                newEffect->effect.u.periodic.waveform = FF_SAW_DOWN;
	    }
	    break;
	case DIEFT_CONSTANTFORCE: 
            newEffect->effect.type = FF_CONSTANT;
	    break;
	case DIEFT_RAMPFORCE: 
	    newEffect->effect.type = FF_RAMP;
	    break;
	case DIEFT_CONDITION: 
	    if (IsEqualGUID(rguid, &GUID_Spring)) {
		newEffect->effect.type = FF_SPRING;
            } else if (IsEqualGUID(rguid, &GUID_Friction)) {
		newEffect->effect.type = FF_FRICTION;
            } else if (IsEqualGUID(rguid, &GUID_Inertia)) {
		newEffect->effect.type = FF_INERTIA;
            } else if (IsEqualGUID(rguid, &GUID_Damper)) {
		newEffect->effect.type = FF_DAMPER;
	    }
	    break;
	case DIEFT_CUSTOMFORCE:
	    FIXME("Custom forces are not supported.\n");
	    HeapFree(GetProcessHeap(), 0, newEffect);
	    return DIERR_INVALIDPARAM;
	default:
            FIXME("Unknown force type 0x%x.\n", type);
            HeapFree(GetProcessHeap(), 0, newEffect);
	    return DIERR_INVALIDPARAM;
    }

    /* mark as non-uploaded */
    newEffect->effect.id = -1;

    newEffect->entry = parent_list_entry;

    *peff = &newEffect->IDirectInputEffect_iface;

    TRACE("Creating linux input system effect (%p) with guid %s\n", 
	  *peff, _dump_dinput_GUID(rguid));

    return DI_OK;
}
Exemplo n.º 4
0
static HRESULT WINAPI LinuxInputEffectImpl_SetParameters(
        LPDIRECTINPUTEFFECT iface,
        LPCDIEFFECT peff,
        DWORD dwFlags)
{
    LinuxInputEffectImpl *This = impl_from_IDirectInputEffect(iface);
    DWORD type = typeFromGUID(&This->guid);
    HRESULT retval = DI_OK;

    TRACE("(this=%p,%p,%d)\n", This, peff, dwFlags);

    dump_DIEFFECT(peff, &This->guid, dwFlags);

    if ((dwFlags & ~DIEP_NORESTART & ~DIEP_NODOWNLOAD & ~DIEP_START) == 0) {
	/* set everything */
	dwFlags = DIEP_AXES | DIEP_DIRECTION | DIEP_DURATION | DIEP_ENVELOPE |
	    DIEP_GAIN | DIEP_SAMPLEPERIOD | DIEP_STARTDELAY | DIEP_TRIGGERBUTTON |
	    DIEP_TRIGGERREPEATINTERVAL | DIEP_TYPESPECIFICPARAMS;
    }

    if (dwFlags & DIEP_AXES) {
	/* the linux input effect system only supports one or two axes */
	if (peff->cAxes > 2)
	    return DIERR_INVALIDPARAM;
	else if (peff->cAxes < 1)
	    return DIERR_INCOMPLETEEFFECT;
	This->first_axis_is_x = peff->rgdwAxes[0] == DIJOFS_X;
    }

    /* some of this may look funky, but it's 'cause the linux driver and directx have
     * different opinions about which way direction "0" is.  directx has 0 along the x
     * axis (left), linux has it along the y axis (down). */ 
    if (dwFlags & DIEP_DIRECTION) {
	if (peff->cAxes == 1) {
	    if (peff->dwFlags & DIEFF_CARTESIAN) {
		if (dwFlags & DIEP_AXES) {
		    if (peff->rgdwAxes[0] == DIJOFS_X && peff->rglDirection[0] >= 0)
			This->effect.direction = 0x4000;
		    else if (peff->rgdwAxes[0] == DIJOFS_X && peff->rglDirection[0] < 0)
			This->effect.direction = 0xC000;
		    else if (peff->rgdwAxes[0] == DIJOFS_Y && peff->rglDirection[0] >= 0)
			This->effect.direction = 0;
		    else if (peff->rgdwAxes[0] == DIJOFS_Y && peff->rglDirection[0] < 0)
			This->effect.direction = 0x8000;
		}
	    } else {
		/* one-axis effects must use cartesian coords */
		return DIERR_INVALIDPARAM;
	    }
        }
        /* two axes */
        else
        {
            if (peff->dwFlags & DIEFF_CARTESIAN)
            {
                LONG x, y;
                if (This->first_axis_is_x)
                {
                    x = peff->rglDirection[0];
                    y = peff->rglDirection[1];
                }
                else
                {
                    x = peff->rglDirection[1];
                    y = peff->rglDirection[0];
                }
                This->effect.direction = (unsigned int)((M_PI / 2 + atan2(y, x)) * 0x8000 / M_PI);
            }
            else
            {
                /* Polar and spherical are the same for 2 axes */
                /* Precision is important here, so we do double math with exact constants */
                This->effect.direction = (unsigned int)(((double)peff->rglDirection[0] / 18000) * 0x8000);
            }
        }
    }

    if (dwFlags & DIEP_DURATION)
    {
        if (peff->dwDuration == INFINITE)
            This->effect.replay.length = 0; /* infinite for the linux driver */
        else if(peff->dwDuration > 1000)
            This->effect.replay.length = peff->dwDuration / 1000;
        else
            This->effect.replay.length = 1;
    }

    if (dwFlags & DIEP_ENVELOPE)
    {
        struct ff_envelope* env;
        if (This->effect.type == FF_CONSTANT)
            env = &This->effect.u.constant.envelope;
        else if (This->effect.type == FF_PERIODIC)
            env = &This->effect.u.periodic.envelope;
        else if (This->effect.type == FF_RAMP)
            env = &This->effect.u.ramp.envelope;
        else
            env = NULL;

        /* copy the envelope if it is present and the linux effect supports it */
        if (peff->lpEnvelope && env)
        {
            env->attack_length = peff->lpEnvelope->dwAttackTime / 1000;
            env->attack_level = (peff->lpEnvelope->dwAttackLevel / 10) * 32;
            env->fade_length = peff->lpEnvelope->dwFadeTime / 1000;
            env->fade_level = (peff->lpEnvelope->dwFadeLevel / 10) * 32;
        }
        /* if the dinput envelope is NULL we will clear the linux envelope */
        else if (env)
        {
            env->attack_length = 0;
            env->attack_level = 0;
            env->fade_length = 0;
            env->fade_level = 0;
        }
        else if(peff->lpEnvelope)
        {
            if(peff->lpEnvelope->dwAttackTime || peff->lpEnvelope->dwAttackLevel ||
               peff->lpEnvelope->dwFadeTime || peff->lpEnvelope->dwFadeLevel)
                WARN("Ignoring dinput envelope not supported in the linux effect\n");
        }
    }

    /* Gain and Sample Period settings are not supported by the linux
     * event system */
    if (dwFlags & DIEP_GAIN) {
	This->gain = 0xFFFF * peff->dwGain / 10000;
	TRACE("Effect gain requested but no effect gain functionality present.\n");
    }

    if (dwFlags & DIEP_SAMPLEPERIOD)
	TRACE("Sample period requested but no sample period functionality present.\n");

    if (dwFlags & DIEP_STARTDELAY)
    if ((dwFlags & DIEP_STARTDELAY) && peff->dwSize > sizeof(DIEFFECT_DX5))
        This->effect.replay.delay = peff->dwStartDelay / 1000;

    if (dwFlags & DIEP_TRIGGERBUTTON) {
	if (peff->dwTriggerButton != -1) {
	    FIXME("Linuxinput button mapping needs redoing, assuming we're using a joystick.\n");
	    FIXME("Trigger button translation not yet implemented!\n");
	}
	This->effect.trigger.button = 0;
    }

    if (dwFlags & DIEP_TRIGGERREPEATINTERVAL)
	This->effect.trigger.interval = peff->dwTriggerRepeatInterval / 1000;

    if (dwFlags & DIEP_TYPESPECIFICPARAMS)
    {
        if (!(peff->lpvTypeSpecificParams))
            return DIERR_INCOMPLETEEFFECT;

        if (type == DIEFT_PERIODIC)
        {
            DIPERIODIC *tsp;
            if (peff->cbTypeSpecificParams != sizeof(DIPERIODIC))
                return DIERR_INVALIDPARAM;
            tsp = peff->lpvTypeSpecificParams;

            This->effect.u.periodic.magnitude = (tsp->dwMagnitude / 10) * 32;
            This->effect.u.periodic.offset = (tsp->lOffset / 10) * 32;
            /* phase ranges from 0 - 35999 in dinput and 0 - 65535 on linux */
            This->effect.u.periodic.phase = (tsp->dwPhase / 36) * 65;
            /* dinput uses microseconds, linux uses miliseconds */
            if (tsp->dwPeriod <= 1000)
                This->effect.u.periodic.period = 1;
            else
                This->effect.u.periodic.period = tsp->dwPeriod / 1000;
        }
        else if (type == DIEFT_CONSTANTFORCE)
        {
            LPCDICONSTANTFORCE tsp;
            if (peff->cbTypeSpecificParams != sizeof(DICONSTANTFORCE))
                return DIERR_INVALIDPARAM;
            tsp = peff->lpvTypeSpecificParams;
	    This->effect.u.constant.level = (max(min(tsp->lMagnitude, 10000), -10000) / 10) * 32;
	} else if (type == DIEFT_RAMPFORCE) {
            LPCDIRAMPFORCE tsp;
            if (peff->cbTypeSpecificParams != sizeof(DIRAMPFORCE))
                return DIERR_INVALIDPARAM;
            tsp = peff->lpvTypeSpecificParams;
	    This->effect.u.ramp.start_level = (tsp->lStart / 10) * 32;
	    This->effect.u.ramp.end_level = (tsp->lEnd / 10) * 32;
        }
        else if (type == DIEFT_CONDITION)
        {
            DICONDITION *tsp = peff->lpvTypeSpecificParams;
            struct ff_condition_effect *cond = This->effect.u.condition;
            int i, j, sources;
            double factor[2];

            if (peff->cbTypeSpecificParams == sizeof(DICONDITION))
            {
                /* One condition block.  This needs to be rotated to direction,
                 * and expanded to separate x and y conditions. Ensures 0 points right */
                double angle = ff_effect_direction_to_rad(This->effect.direction + 0xc000);
                factor[0] = sin(angle);
                factor[1] = -cos(angle);
                sources = 1;
            }
            else if (peff->cbTypeSpecificParams == 2 * sizeof(DICONDITION))
            {
                /* Direct parameter copy without changes */
                factor[0] = factor[1] = 1;
                sources = 2;
            }
            else
                return DIERR_INVALIDPARAM;

            for (i = j = 0; i < 2; ++i)
            {
                cond[i].center = (int)(factor[i] * (tsp[j].lOffset / 10) * 32);
                cond[i].right_coeff = (int)(factor[i] * (tsp[j].lPositiveCoefficient / 10) * 32);
                cond[i].left_coeff = (int)(factor[i] * (tsp[j].lNegativeCoefficient / 10) * 32);
                cond[i].right_saturation = (int)(factor[i] * (tsp[j].dwPositiveSaturation / 10) * 65);
                cond[i].left_saturation = (int)(factor[i] * (tsp[j].dwNegativeSaturation / 10) * 65);
                cond[i].deadband = (int)(factor[i] * (tsp[j].lDeadBand / 10) * 32);
                if (sources == 2)
                    j++;
            }
        }
        else
        {
            FIXME("Custom force types are not supported\n");
            return DIERR_INVALIDPARAM;
        }
    }

    if (!(dwFlags & DIEP_NODOWNLOAD))
	retval = LinuxInputEffectImpl_Download(iface);
    if (retval != DI_OK)
	return DI_DOWNLOADSKIPPED;

    if (dwFlags & DIEP_NORESTART)
	TRACE("DIEP_NORESTART: not handled (we have no control of that).\n");

    if (dwFlags & DIEP_START)
	retval = LinuxInputEffectImpl_Start(iface, 1, 0);
    if (retval != DI_OK)
	return retval;
 
    return DI_OK;
}