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source: code/trunk/src/external/ois/win32/Win32JoyStick.cpp @ 12285

Last change on this file since 12285 was 9674, checked in by landauf, 11 years ago
fixed build for MinGW with GCC 4.6
Property svn:eol-style set to `native`
File size: 21.4 KB

Line
1	/*
2	The zlib/libpng License
3
4	Copyright (c) 2005-2007 Phillip Castaneda (pjcast -- www.wreckedgames.com)
5
6	This software is provided 'as-is', without any express or implied warranty. In no event will
7	the authors be held liable for any damages arising from the use of this software.
8
9	Permission is granted to anyone to use this software for any purpose, including commercial
10	applications, and to alter it and redistribute it freely, subject to the following
11	restrictions:
12
13	1. The origin of this software must not be misrepresented; you must not claim that
14	you wrote the original software. If you use this software in a product,
15	an acknowledgment in the product documentation would be appreciated but is
16	not required.
17
18	2. Altered source versions must be plainly marked as such, and must not be
19	misrepresented as being the original software.
20
21	3. This notice may not be removed or altered from any source distribution.
22	*/
23	#include "win32/Win32JoyStick.h"
24	#include "win32/Win32InputManager.h"
25	#include "win32/Win32ForceFeedback.h"
26	#include "OISEvents.h"
27	#include "OISException.h"
28
29	// (Orxonox): Required for MinGW to compile properly
30	#ifdef __MINGW32__
31	# include <oaidl.h>
32	# ifndef __MINGW_EXTENSION
33	# define __MINGW_EXTENSION __extension__
34	# endif
35	#endif
36
37	#include <cassert>
38	#include <cstddef>
39	#include <wbemidl.h>
40	#include <oleauto.h>
41	//#include <wmsstd.h>
42	#ifndef SAFE_RELEASE
43	#define SAFE_RELEASE(x) \
44	if(x != NULL) \
45	{ \
46	x->Release(); \
47	x = NULL; \
48	}
49	#endif
50
51	// (Orxonox): MinGW doesn't have swscanf_s
52	#ifdef __MINGW32__
53	# define swscanf_s swscanf
54	#endif
55
56	#ifdef OIS_WIN32_XINPUT_SUPPORT
57	# pragma comment(lib, "xinput.lib")
58	#endif
59
60	//DX Only defines macros for the JOYSTICK not JOYSTICK2, so fix it
61	#undef DIJOFS_BUTTON
62	#undef DIJOFS_POV
63
64	#define DIJOFS_BUTTON(n) (FIELD_OFFSET(DIJOYSTATE2, rgbButtons) + (n))
65	#define DIJOFS_POV(n) (FIELD_OFFSET(DIJOYSTATE2, rgdwPOV)+(n)*sizeof(DWORD))
66	#define DIJOFS_SLIDER0(n) (FIELD_OFFSET(DIJOYSTATE2, rglSlider)+(n) * sizeof(LONG))
67	#define DIJOFS_SLIDER1(n) (FIELD_OFFSET(DIJOYSTATE2, rglVSlider)+(n) * sizeof(LONG))
68	#define DIJOFS_SLIDER2(n) (FIELD_OFFSET(DIJOYSTATE2, rglASlider)+(n) * sizeof(LONG))
69	#define DIJOFS_SLIDER3(n) (FIELD_OFFSET(DIJOYSTATE2, rglFSlider)+(n) * sizeof(LONG))
70
71	#define XINPUT_TRANSLATED_BUTTON_COUNT 12
72	#define XINPUT_TRANSLATED_AXIS_COUNT 6
73
74	using namespace OIS;
75
76	//--------------------------------------------------------------------------------------------------//
77	Win32JoyStick::Win32JoyStick( InputManager* creator, IDirectInput8* pDI, bool buffered, DWORD coopSettings, const JoyStickInfo &info ) :
78	JoyStick(info.vendor, buffered, info.devId, creator),
79	mDirectInput(pDI),
80	coopSetting(coopSettings),
81	mJoyStick(0),
82	mJoyInfo(info),
83	mFfDevice(0)
84	{
85	}
86
87	//--------------------------------------------------------------------------------------------------//
88	Win32JoyStick::~Win32JoyStick()
89	{
90	delete mFfDevice;
91
92	if(mJoyStick)
93	{
94	mJoyStick->Unacquire();
95	mJoyStick->Release();
96	mJoyStick = 0;
97	}
98
99	//Return joystick to pool
100	static_cast<Win32InputManager*>(mCreator)->_returnJoyStick(mJoyInfo);
101	}
102
103	//--------------------------------------------------------------------------------------------------//
104	void Win32JoyStick::_initialize()
105	{
106	if (mJoyInfo.isXInput)
107	{
108	_enumerate();
109	}
110	else
111	{
112	//Clear old state
113	mState.mAxes.clear();
114
115	delete mFfDevice;
116	mFfDevice = 0;
117
118	DIPROPDWORD dipdw;
119
120	dipdw.diph.dwSize = sizeof(DIPROPDWORD);
121	dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
122	dipdw.diph.dwObj = 0;
123	dipdw.diph.dwHow = DIPH_DEVICE;
124	dipdw.dwData = JOYSTICK_DX_BUFFERSIZE;
125
126	if(FAILED(mDirectInput->CreateDevice(mJoyInfo.deviceID, &mJoyStick, NULL)))
127	OIS_EXCEPT( E_General, "Win32JoyStick::_initialize() >> Could not initialize joy device!");
128
129	if(FAILED(mJoyStick->SetDataFormat(&c_dfDIJoystick2)))
130	OIS_EXCEPT( E_General, "Win32JoyStick::_initialize() >> data format error!");
131
132	HWND hwin = ((Win32InputManager*)mCreator)->getWindowHandle();
133
134	if(FAILED(mJoyStick->SetCooperativeLevel( hwin, coopSetting)))
135	OIS_EXCEPT( E_General, "Win32JoyStick::_initialize() >> failed to set cooperation level!");
136
137	if( FAILED(mJoyStick->SetProperty(DIPROP_BUFFERSIZE, &dipdw.diph)) )
138	OIS_EXCEPT( E_General, "Win32Mouse::Win32Mouse >> Failed to set buffer size property" );
139
140	//Enumerate all axes/buttons/sliders/etc before aquiring
141	_enumerate();
142
143	mState.clear();
144
145	capture();
146	}
147	}
148
149	//--------------------------------------------------------------------------------------------------//
150	void Win32JoyStick::_enumerate()
151	{
152	if (mJoyInfo.isXInput)
153	{
154	mPOVs = 1;
155
156	mState.mButtons.resize(XINPUT_TRANSLATED_BUTTON_COUNT);
157	mState.mAxes.resize(XINPUT_TRANSLATED_AXIS_COUNT);
158	}
159	else
160	{
161	// Get joystick capabilities.
162	mDIJoyCaps.dwSize = sizeof(DIDEVCAPS);
163	if( FAILED(mJoyStick->GetCapabilities(&mDIJoyCaps)) )
164	OIS_EXCEPT( E_General, "Win32JoyStick::_enumerate >> Failed to get capabilities" );
165
166	mPOVs = (short)mDIJoyCaps.dwPOVs;
167
168	mState.mButtons.resize(mDIJoyCaps.dwButtons);
169	mState.mAxes.resize(mDIJoyCaps.dwAxes);
170
171	//Reset the axis mapping enumeration value
172	_AxisNumber = 0;
173
174	//Enumerate Force Feedback (if any)
175	mJoyStick->EnumEffects(DIEnumEffectsCallback, this, DIEFT_ALL);
176
177	//Enumerate and set axis constraints (and check FF Axes)
178	mJoyStick->EnumObjects(DIEnumDeviceObjectsCallback, this, DIDFT_AXIS);
179	}
180	}
181
182	//--------------------------------------------------------------------------------------------------//
183	BOOL CALLBACK Win32JoyStick::DIEnumDeviceObjectsCallback(LPCDIDEVICEOBJECTINSTANCE lpddoi, LPVOID pvRef)
184	{
185	Win32JoyStick* _this = (Win32JoyStick*)pvRef;
186
187	//Setup mappings
188	DIPROPPOINTER diptr;
189	diptr.diph.dwSize = sizeof(DIPROPPOINTER);
190	diptr.diph.dwHeaderSize = sizeof(DIPROPHEADER);
191	diptr.diph.dwHow = DIPH_BYID;
192	diptr.diph.dwObj = lpddoi->dwType;
193	//Add a magic number to recognise we set seomthing
194	diptr.uData = 0x13130000 \| _this->_AxisNumber;
195
196	//Check if axis is slider, if so, do not treat as regular axis
197	if(GUID_Slider == lpddoi->guidType)
198	{
199	++_this->mSliders;
200
201	//Decrease Axes, since this slider shows up in a different place
202	_this->mState.mAxes.pop_back();
203	}
204	else if (FAILED(_this->mJoyStick->SetProperty(DIPROP_APPDATA, &diptr.diph)))
205	{ //If for some reason we could not set needed user data, just ignore this axis
206	return DIENUM_CONTINUE;
207	}
208
209	//Increase for next time through
210	if(GUID_Slider != lpddoi->guidType)
211	_this->_AxisNumber += 1;
212
213	//Set range
214	DIPROPRANGE diprg;
215	diprg.diph.dwSize = sizeof(DIPROPRANGE);
216	diprg.diph.dwHeaderSize = sizeof(DIPROPHEADER);
217	diprg.diph.dwHow = DIPH_BYID;
218	diprg.diph.dwObj = lpddoi->dwType;
219	diprg.lMin = MIN_AXIS;
220	diprg.lMax = MAX_AXIS;
221
222	if (FAILED(_this->mJoyStick->SetProperty(DIPROP_RANGE, &diprg.diph)))
223	OIS_EXCEPT( E_General, "Win32JoyStick::_DIEnumDeviceObjectsCallback >> Failed to set min/max range property" );
224
225	//Check if FF Axes, and if so, increment counter
226	if((lpddoi->dwFlags & DIDOI_FFACTUATOR) != 0 )
227	{
228	if( _this->mFfDevice )
229	{
230	_this->mFfDevice->_addFFAxis();
231	}
232	}
233
234	//Force the flags for gain and auto-center support to true,
235	//as DInput has no API to query the device for these capabilities
236	//(the only way to know is to try them ...)
237	if( _this->mFfDevice )
238	{
239	_this->mFfDevice->_setGainSupport(true);
240	_this->mFfDevice->_setAutoCenterSupport(true);
241	}
242
243	return DIENUM_CONTINUE;
244	}
245
246	//--------------------------------------------------------------------------------------------------//
247	BOOL CALLBACK Win32JoyStick::DIEnumEffectsCallback(LPCDIEFFECTINFO pdei, LPVOID pvRef)
248	{
249	Win32JoyStick* _this = (Win32JoyStick*)pvRef;
250
251	//Create the FF instance only after we know there is at least one effect type
252	if( _this->mFfDevice == 0 )
253	_this->mFfDevice = new Win32ForceFeedback(_this->mJoyStick, &_this->mDIJoyCaps);
254
255	_this->mFfDevice->_addEffectSupport(pdei);
256
257	return DIENUM_CONTINUE;
258	}
259
260	//--------------------------------------------------------------------------------------------------//
261	void Win32JoyStick::capture()
262	{
263	#ifdef OIS_WIN32_XINPUT_SUPPORT
264	//handle xbox controller differently
265	if (mJoyInfo.isXInput)
266	{
267	captureXInput();
268	return;
269	}
270	#endif
271
272	//handle directinput based devices
273	DIDEVICEOBJECTDATA diBuff[JOYSTICK_DX_BUFFERSIZE];
274	DWORD entries = JOYSTICK_DX_BUFFERSIZE;
275
276	// Poll the device to read the current state
277	HRESULT hr = mJoyStick->Poll();
278	if( hr == DI_OK )
279	hr = mJoyStick->GetDeviceData( sizeof(DIDEVICEOBJECTDATA), diBuff, &entries, 0 );
280
281	if( hr != DI_OK )
282	{
283	hr = mJoyStick->Acquire();
284	while( hr == DIERR_INPUTLOST )
285	hr = mJoyStick->Acquire();
286
287	// Poll the device to read the current state
288	mJoyStick->Poll();
289	hr = mJoyStick->GetDeviceData( sizeof(DIDEVICEOBJECTDATA), diBuff, &entries, 0 );
290	//Perhaps the user just tabbed away
291	if( FAILED(hr) )
292	return;
293	}
294
295	bool axisMoved[24] = {false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,false,
296	false,false,false,false,false,false,false,false};
297	bool sliderMoved[4] = {false,false,false,false};
298
299	//Loop through all the events
300	for(unsigned int i = 0; i < entries; ++i)
301	{
302	//This may seem outof order, but is in order of the way these variables
303	//are declared in the JoyStick State 2 structure.
304	switch(diBuff[i].dwOfs)
305	{
306	//------ slider -//
307	case DIJOFS_SLIDER0(0):
308	sliderMoved[0] = true;
309	mState.mSliders[0].abX = diBuff[i].dwData;
310	break;
311	case DIJOFS_SLIDER0(1):
312	sliderMoved[0] = true;
313	mState.mSliders[0].abY = diBuff[i].dwData;
314	break;
315	//----- Max 4 POVs Next ---------------//
316	case DIJOFS_POV(0):
317	if(!_changePOV(0,diBuff[i]))
318	return;
319	break;
320	case DIJOFS_POV(1):
321	if(!_changePOV(1,diBuff[i]))
322	return;
323	break;
324	case DIJOFS_POV(2):
325	if(!_changePOV(2,diBuff[i]))
326	return;
327	break;
328	case DIJOFS_POV(3):
329	if(!_changePOV(3,diBuff[i]))
330	return;
331	break;
332	case DIJOFS_SLIDER1(0):
333	sliderMoved[1] = true;
334	mState.mSliders[1].abX = diBuff[i].dwData;
335	break;
336	case DIJOFS_SLIDER1(1):
337	sliderMoved[1] = true;
338	mState.mSliders[1].abY = diBuff[i].dwData;
339	break;
340	case DIJOFS_SLIDER2(0):
341	sliderMoved[2] = true;
342	mState.mSliders[2].abX = diBuff[i].dwData;
343	break;
344	case DIJOFS_SLIDER2(1):
345	sliderMoved[2] = true;
346	mState.mSliders[2].abY = diBuff[i].dwData;
347	break;
348	case DIJOFS_SLIDER3(0):
349	sliderMoved[3] = true;
350	mState.mSliders[3].abX = diBuff[i].dwData;
351	break;
352	case DIJOFS_SLIDER3(1):
353	sliderMoved[3] = true;
354	mState.mSliders[3].abY = diBuff[i].dwData;
355	break;
356	//-----------------------------------------//
357	default:
358	//Handle Button Events Easily using the DX Offset Macros
359	if( diBuff[i].dwOfs >= DIJOFS_BUTTON(0) && diBuff[i].dwOfs < DIJOFS_BUTTON(128) )
360	{
361	if(!_doButtonClick((diBuff[i].dwOfs - DIJOFS_BUTTON(0)), diBuff[i]))
362	return;
363	}
364	else if((short)(diBuff[i].uAppData >> 16) == 0x1313)
365	{ //If it was nothing else, might be axis enumerated earlier (determined by magic number)
366	int axis = (int)(0x0000FFFF & diBuff[i].uAppData); //Mask out the high bit
367	assert( axis >= 0 && axis < (int)mState.mAxes.size() && "Axis out of range!");
368
369	if(axis >= 0 && axis < (int)mState.mAxes.size())
370	{
371	mState.mAxes[axis].abs = diBuff[i].dwData;
372	axisMoved[axis] = true;
373	}
374	}
375
376	break;
377	} //end case
378	} //end for
379
380	//Check to see if any of the axes values have changed.. if so send events
381	if( mBuffered && mListener && entries > 0 )
382	{
383	JoyStickEvent temp(this, mState);
384
385	//Update axes
386	for( int i = 0; i < 24; ++i )
387	if( axisMoved[i] )
388	if( mListener->axisMoved( temp, i ) == false )
389	return;
390
391	//Now update sliders
392	for( int i = 0; i < 4; ++i )
393	if( sliderMoved[i] )
394	if( mListener->sliderMoved( temp, i ) == false )
395	return;
396	}
397	}
398
399	//--------------------------------------------------------------------------------------------------//
400	void Win32JoyStick::captureXInput()
401	{
402	#ifdef OIS_WIN32_XINPUT_SUPPORT
403	XINPUT_STATE inputState;
404	if (XInputGetState((DWORD)mJoyInfo.xInputDev, &inputState) != ERROR_SUCCESS)
405	memset(&inputState, 0, sizeof(inputState));
406
407	//Sticks and triggers
408	int value;
409	bool axisMoved[XINPUT_TRANSLATED_AXIS_COUNT] = {false,false,false,false,false,false};
410
411	//LeftY
412	value = -(int)inputState.Gamepad.sThumbLY;
413	mState.mAxes[0].rel = value - mState.mAxes[0].abs;
414	mState.mAxes[0].abs = value;
415	if(mState.mAxes[0].rel != 0)
416	axisMoved[0] = true;
417
418	//LeftX
419	mState.mAxes[1].rel = inputState.Gamepad.sThumbLX - mState.mAxes[1].abs;
420	mState.mAxes[1].abs = inputState.Gamepad.sThumbLX;
421
422	if(mState.mAxes[1].rel != 0)
423	axisMoved[1] = true;
424
425	//RightY
426	value = -(int)inputState.Gamepad.sThumbRY;
427	mState.mAxes[2].rel = value - mState.mAxes[2].abs;
428	mState.mAxes[2].abs = value;
429	if(mState.mAxes[2].rel != 0)
430	axisMoved[2] = true;
431
432	//RightX
433	mState.mAxes[3].rel = inputState.Gamepad.sThumbRX - mState.mAxes[3].abs;
434	mState.mAxes[3].abs = inputState.Gamepad.sThumbRX;
435	if(mState.mAxes[3].rel != 0)
436	axisMoved[3] = true;
437
438	//Left trigger
439	value = inputState.Gamepad.bLeftTrigger * 129;
440	if(value > JoyStick::MAX_AXIS)
441	value = JoyStick::MAX_AXIS;
442
443	mState.mAxes[4].rel = value - mState.mAxes[4].abs;
444	mState.mAxes[4].abs = value;
445	if(mState.mAxes[4].rel != 0)
446	axisMoved[4] = true;
447
448	//Right trigger
449	value = (int)inputState.Gamepad.bRightTrigger * 129;
450	if(value > JoyStick::MAX_AXIS)
451	value = JoyStick::MAX_AXIS;
452
453	mState.mAxes[5].rel = value - mState.mAxes[5].abs;
454	mState.mAxes[5].abs = value;
455	if(mState.mAxes[5].rel != 0)
456	axisMoved[5] = true;
457
458	//POV
459	int previousPov = mState.mPOV[0].direction;
460	int& pov = mState.mPOV[0].direction;
461	pov = Pov::Centered;
462	if (inputState.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_UP)
463	pov \|= Pov::North;
464	else if (inputState.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_DOWN)
465	pov \|= Pov::South;
466	if (inputState.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_LEFT)
467	pov \|= Pov::West;
468	else if (inputState.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_RIGHT)
469	pov \|= Pov::East;
470
471	//Buttons - The first 4 buttons don't need to be checked since they represent the dpad
472	bool previousButtons[XINPUT_TRANSLATED_BUTTON_COUNT];
473	std::copy(mState.mButtons.begin(), mState.mButtons.end(), previousButtons);
474	for (size_t i = 0; i < XINPUT_TRANSLATED_BUTTON_COUNT; i++)
475	mState.mButtons[i] = (inputState.Gamepad.wButtons & (1 << (i + 4))) != 0;
476
477	//Send events
478	if (mBuffered && mListener)
479	{
480	JoyStickEvent joystickEvent(this, mState);
481
482	//Axes
483	for (int i = 0; i < XINPUT_TRANSLATED_AXIS_COUNT; i++)
484	{
485	if (axisMoved[i] && !mListener->axisMoved(joystickEvent, i))
486	return;
487	}
488
489	//POV
490	if (previousPov != pov && !mListener->povMoved(joystickEvent, 0))
491	return;
492
493	//Buttons
494	for (int i = 0; i < XINPUT_TRANSLATED_BUTTON_COUNT; i++)
495	{
496	if (!previousButtons[i] && mState.mButtons[i])
497	{
498	if (!mListener->buttonPressed(joystickEvent, i))
499	return;
500	}
501	else if (previousButtons[i] && !mState.mButtons[i])
502	{
503	if (!mListener->buttonReleased(joystickEvent, i))
504	return;
505	}
506	}
507	}
508	#endif
509	}
510
511	//--------------------------------------------------------------------------------------------------//
512	bool Win32JoyStick::_doButtonClick( int button, DIDEVICEOBJECTDATA& di )
513	{
514	if( di.dwData & 0x80 )
515	{
516	mState.mButtons[button] = true;
517	if( mBuffered && mListener )
518	return mListener->buttonPressed( JoyStickEvent( this, mState ), button );
519	}
520	else
521	{
522	mState.mButtons[button] = false;
523	if( mBuffered && mListener )
524	return mListener->buttonReleased( JoyStickEvent( this, mState ), button );
525	}
526
527	return true;
528	}
529
530	//--------------------------------------------------------------------------------------------------//
531	bool Win32JoyStick::_changePOV( int pov, DIDEVICEOBJECTDATA& di )
532	{
533	//Some drivers report a value of 65,535, instead of 1,
534	//for the center position
535	if(LOWORD(di.dwData) == 0xFFFF)
536	{
537	mState.mPOV[pov].direction = Pov::Centered;
538	}
539	else
540	{
541	switch(di.dwData)
542	{
543	case 0: mState.mPOV[pov].direction = Pov::North; break;
544	case 4500: mState.mPOV[pov].direction = Pov::NorthEast; break;
545	case 9000: mState.mPOV[pov].direction = Pov::East; break;
546	case 13500: mState.mPOV[pov].direction = Pov::SouthEast; break;
547	case 18000: mState.mPOV[pov].direction = Pov::South; break;
548	case 22500: mState.mPOV[pov].direction = Pov::SouthWest; break;
549	case 27000: mState.mPOV[pov].direction = Pov::West; break;
550	case 31500: mState.mPOV[pov].direction = Pov::NorthWest; break;
551	}
552	}
553
554	if( mBuffered && mListener )
555	return mListener->povMoved( JoyStickEvent( this, mState ), pov );
556
557	return true;
558	}
559
560	//--------------------------------------------------------------------------------------------------//
561	void Win32JoyStick::setBuffered(bool buffered)
562	{
563	mBuffered = buffered;
564	}
565
566	//--------------------------------------------------------------------------------------------------//
567	Interface* Win32JoyStick::queryInterface(Interface::IType type)
568	{
569	if( mFfDevice && type == Interface::ForceFeedback )
570	return mFfDevice;
571	else
572	return 0;
573	}
574
575	//--------------------------------------------------------------------------------------------------//
576	void Win32JoyStick::CheckXInputDevices(JoyStickInfoList &joys)
577	{
578	IWbemLocator* pIWbemLocator = NULL;
579	IEnumWbemClassObject* pEnumDevices = NULL;
580	IWbemClassObject* pDevices[20] = {0};
581	IWbemServices* pIWbemServices = NULL;
582	BSTR bstrNamespace = NULL;
583	BSTR bstrDeviceID = NULL;
584	BSTR bstrClassName = NULL;
585	DWORD uReturned = 0;
586	bool bIsXinputDevice= false;
587	DWORD iDevice = 0;
588	int xDevice = 0;
589	VARIANT var;
590	HRESULT hr;
591
592	if(joys.size() == 0)
593	return;
594
595	// CoInit if needed
596	hr = CoInitialize(NULL);
597	bool bCleanupCOM = SUCCEEDED(hr);
598
599	// Create WMI
600	// (Orxonox): Fix for MinGW
601	#ifdef __MINGW32__
602	hr = CoCreateInstance(CLSID_WbemLocator, NULL, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID*)&pIWbemLocator);
603	#else
604	hr = CoCreateInstance(__uuidof(WbemLocator), NULL, CLSCTX_INPROC_SERVER, __uuidof(IWbemLocator), (LPVOID*)&pIWbemLocator);
605	#endif
606	if( FAILED(hr) \|\| pIWbemLocator == NULL )
607	goto LCleanup;
608
609	bstrNamespace = SysAllocString( L"\\\\.\\root\\cimv2" );
610	if( bstrNamespace == NULL )
611	goto LCleanup;
612
613	bstrClassName = SysAllocString( L"Win32_PNPEntity" );
614	if( bstrClassName == NULL )
615	goto LCleanup;
616
617	bstrDeviceID = SysAllocString( L"DeviceID" );
618	if( bstrDeviceID == NULL )
619	goto LCleanup;
620
621	// Connect to WMI
622	hr = pIWbemLocator->ConnectServer( bstrNamespace, NULL, NULL, 0L, 0L, NULL, NULL, &pIWbemServices );
623	if( FAILED(hr) \|\| pIWbemServices == NULL )
624	goto LCleanup;
625
626	// Switch security level to IMPERSONATE.
627	CoSetProxyBlanket(pIWbemServices, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, NULL, RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE );
628
629	hr = pIWbemServices->CreateInstanceEnum( bstrClassName, 0, NULL, &pEnumDevices );
630	if( FAILED(hr) \|\| pEnumDevices == NULL )
631	goto LCleanup;
632
633	// Loop over all devices
634	for( ;; )
635	{
636	// Get 20 at a time
637	hr = pEnumDevices->Next(5000, 20, pDevices, &uReturned);
638	if( FAILED(hr) )
639	goto LCleanup;
640
641	if( uReturned == 0 )
642	break;
643
644	for(iDevice = 0; iDevice < uReturned; iDevice++)
645	{
646	// For each device, get its device ID
647	hr = pDevices[iDevice]->Get(bstrDeviceID, 0L, &var, NULL, NULL);
648	if(SUCCEEDED(hr) && var.vt == VT_BSTR && var.bstrVal != NULL)
649	{
650	// Check if the device ID contains "IG_". If it does, then it's an XInput device - This information can not be found from DirectInput
651	if(wcsstr(var.bstrVal, L"IG_"))
652	{
653	// If it does, then get the VID/PID from var.bstrVal
654	DWORD dwPid = 0, dwVid = 0;
655	WCHAR* strVid = wcsstr( var.bstrVal, L"VID_" );
656	if(strVid && swscanf_s( strVid, L"VID_%4X", &dwVid ) != 1)
657	dwVid = 0;
658
659	WCHAR* strPid = wcsstr( var.bstrVal, L"PID_" );
660	if(strPid && swscanf_s( strPid, L"PID_%4X", &dwPid ) != 1)
661	dwPid = 0;
662
663	// Compare the VID/PID to the DInput device
664	DWORD dwVidPid = MAKELONG(dwVid, dwPid);
665	for(JoyStickInfoList::iterator i = joys.begin(); i != joys.end(); ++i)
666	{
667	if(dwVidPid == i->productGuid.Data1)
668	{
669	i->isXInput = true;
670	i->xInputDev = xDevice;
671	}
672	}
673
674	if(joys.size() == 0)
675	goto LCleanup;
676	}
677	}
678
679	SAFE_RELEASE(pDevices[iDevice]);
680	}
681	}
682
683	LCleanup:
684	if(bstrNamespace)
685	SysFreeString(bstrNamespace);
686
687	if(bstrDeviceID)
688	SysFreeString(bstrDeviceID);
689
690	if(bstrClassName)
691	SysFreeString(bstrClassName);
692
693	for(iDevice=0; iDevice < 20; iDevice++)
694	SAFE_RELEASE(pDevices[iDevice]);
695
696	SAFE_RELEASE(pEnumDevices);
697	SAFE_RELEASE(pIWbemLocator);
698	SAFE_RELEASE(pIWbemServices);
699
700	if(bCleanupCOM)
701	CoUninitialize();
702	}

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