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   1 /*              DirectInput
   2  *
   3  * Copyright 1998 Marcus Meissner
   4  * Copyright 1998,1999 Lionel Ulmer
   5  * Copyright 2000-2002 TransGaming Technologies Inc.
   6  * Copyright 2007 Vitaliy Margolen
   7  *
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23 /* Status:
  24  *
  25  * - Tomb Raider 2 Demo:
  26  *   Playable using keyboard only.
  27  * - WingCommander Prophecy Demo:
  28  *   Doesn't get Input Focus.
  29  *
  30  * - Fallout : works great in X and DGA mode
  31  */
  32
  33 #include "config.h"
  34 #include <assert.h>
  35 #include <stdarg.h>
  36 #include <string.h>
  37
  38 #define COBJMACROS
  39
  40 #include "wine/debug.h"
  41 #include "wine/unicode.h"
  42 #include "windef.h"
  43 #include "winbase.h"
  44 #include "winuser.h"
  45 #include "winerror.h"
  46 #include "dinput_private.h"
  47 #include "device_private.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(dinput);
  50
  51 static const IDirectInput7AVtbl ddi7avt;
  52 static const IDirectInput7WVtbl ddi7wvt;
  53 static const IDirectInput8AVtbl ddi8avt;
  54 static const IDirectInput8WVtbl ddi8wvt;
  55
  56 static inline IDirectInputImpl *impl_from_IDirectInput7W( IDirectInput7W *iface )
  57 {
  58     return (IDirectInputImpl *)CONTAINING_RECORD( iface, IDirectInputImpl, lpVtbl7w );
  59 }
  60
  61 static inline IDirectInputImpl *impl_from_IDirectInput8A( IDirectInput8A *iface )
  62 {
  63     return (IDirectInputImpl *)CONTAINING_RECORD( iface, IDirectInputImpl, lpVtbl8a );
  64 }
  65
  66 static inline IDirectInputImpl *impl_from_IDirectInput8W( IDirectInput8W *iface )
  67 {
  68     return (IDirectInputImpl *)CONTAINING_RECORD( iface, IDirectInputImpl, lpVtbl8w );
  69 }
  70
  71 static inline IDirectInput7W *IDirectInput7W_from_impl( IDirectInputImpl *iface )
  72 {
  73     return (IDirectInput7W *)(&iface->lpVtbl7w);
  74 }
  75
  76 static const struct dinput_device *dinput_devices[] =
  77 {
  78     &mouse_device,
  79     &keyboard_device,
  80     &joystick_linuxinput_device,
  81     &joystick_linux_device
  82 };
  83 #define NB_DINPUT_DEVICES (sizeof(dinput_devices)/sizeof(dinput_devices[0]))
  84
  85 HINSTANCE DINPUT_instance = NULL;
  86
  87 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserv)
  88 {
  89     switch(reason)
  90     {
  91       case DLL_PROCESS_ATTACH:
  92         DisableThreadLibraryCalls(inst);
  93         DINPUT_instance = inst;
  94         break;
  95       case DLL_PROCESS_DETACH:
  96         break;
  97     }
  98     return TRUE;
  99 }
 100
 101 static BOOL check_hook_thread(void);
 102 static CRITICAL_SECTION dinput_hook_crit;
 103 static struct list direct_input_list = LIST_INIT( direct_input_list );
 104
 105 /******************************************************************************
 106  *      DirectInputCreateEx (DINPUT.@)
 107  */
 108 HRESULT WINAPI DirectInputCreateEx(
 109         HINSTANCE hinst, DWORD dwVersion, REFIID riid, LPVOID *ppDI,
 110         LPUNKNOWN punkOuter)
 111 {
 112     IDirectInputImpl* This;
 113
 114     TRACE("(%p,%04x,%s,%p,%p)\n", hinst, dwVersion, debugstr_guid(riid), ppDI, punkOuter);
 115
 116     if (IsEqualGUID( &IID_IDirectInputA,  riid ) ||
 117         IsEqualGUID( &IID_IDirectInput2A, riid ) ||
 118         IsEqualGUID( &IID_IDirectInput7A, riid ) ||
 119         IsEqualGUID( &IID_IDirectInputW,  riid ) ||
 120         IsEqualGUID( &IID_IDirectInput2W, riid ) ||
 121         IsEqualGUID( &IID_IDirectInput7W, riid ) ||
 122         IsEqualGUID( &IID_IDirectInput8A, riid ) ||
 123         IsEqualGUID( &IID_IDirectInput8W, riid ))
 124     {
 125         if (!(This = HeapAlloc( GetProcessHeap(), 0, sizeof(IDirectInputImpl) )))
 126             return DIERR_OUTOFMEMORY;
 127     }
 128     else
 129         return DIERR_OLDDIRECTINPUTVERSION;
 130
 131     This->lpVtbl      = &ddi7avt;
 132     This->lpVtbl7w    = &ddi7wvt;
 133     This->lpVtbl8a    = &ddi8avt;
 134     This->lpVtbl8w    = &ddi8wvt;
 135     This->ref         = 0;
 136     This->dwVersion   = dwVersion;
 137     This->evsequence  = 1;
 138
 139     InitializeCriticalSection(&This->crit);
 140     This->crit.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": IDirectInputImpl*->crit");
 141
 142     list_init( &This->devices_list );
 143
 144     /* Add self to the list of the IDirectInputs */
 145     EnterCriticalSection( &dinput_hook_crit );
 146     list_add_head( &direct_input_list, &This->entry );
 147     LeaveCriticalSection( &dinput_hook_crit );
 148
 149     if (!check_hook_thread())
 150     {
 151         IUnknown_Release( (LPDIRECTINPUT7A)This );
 152         return DIERR_GENERIC;
 153     }
 154
 155     IDirectInput_QueryInterface( (IDirectInput7A *)This, riid, ppDI );
 156     return DI_OK;
 157 }
 158
 159 /******************************************************************************
 160  *      DirectInputCreateA (DINPUT.@)
 161  */
 162 HRESULT WINAPI DirectInputCreateA(HINSTANCE hinst, DWORD dwVersion, LPDIRECTINPUTA *ppDI, LPUNKNOWN punkOuter)
 163 {
 164     return DirectInputCreateEx(hinst, dwVersion, &IID_IDirectInput7A, (LPVOID *)ppDI, punkOuter);
 165 }
 166
 167 /******************************************************************************
 168  *      DirectInputCreateW (DINPUT.@)
 169  */
 170 HRESULT WINAPI DirectInputCreateW(HINSTANCE hinst, DWORD dwVersion, LPDIRECTINPUTW *ppDI, LPUNKNOWN punkOuter)
 171 {
 172     return DirectInputCreateEx(hinst, dwVersion, &IID_IDirectInput7W, (LPVOID *)ppDI, punkOuter);
 173 }
 174
 175 static const char *_dump_DIDEVTYPE_value(DWORD dwDevType) {
 176     switch (dwDevType) {
 177         case 0: return "All devices";
 178         case DIDEVTYPE_MOUSE: return "DIDEVTYPE_MOUSE";
 179         case DIDEVTYPE_KEYBOARD: return "DIDEVTYPE_KEYBOARD";
 180         case DIDEVTYPE_JOYSTICK: return "DIDEVTYPE_JOYSTICK";
 181         case DIDEVTYPE_DEVICE: return "DIDEVTYPE_DEVICE";
 182         default: return "Unknown";
 183     }
 184 }
 185
 186 static void _dump_EnumDevices_dwFlags(DWORD dwFlags) {
 187     if (TRACE_ON(dinput)) {
 188         unsigned int   i;
 189         static const struct {
 190             DWORD       mask;
 191             const char  *name;
 192         } flags[] = {
 193 #define FE(x) { x, #x}
 194             FE(DIEDFL_ALLDEVICES),
 195             FE(DIEDFL_ATTACHEDONLY),
 196             FE(DIEDFL_FORCEFEEDBACK),
 197             FE(DIEDFL_INCLUDEALIASES),
 198             FE(DIEDFL_INCLUDEPHANTOMS)
 199 #undef FE
 200         };
 201         if (dwFlags == 0) {
 202             DPRINTF("DIEDFL_ALLDEVICES");
 203             return;
 204         }
 205         for (i = 0; i < (sizeof(flags) / sizeof(flags[0])); i++)
 206             if (flags[i].mask & dwFlags)
 207                 DPRINTF("%s ",flags[i].name);
 208     }
 209 }
 210
 211 /******************************************************************************
 212  *      IDirectInputA_EnumDevices
 213  */
 214 static HRESULT WINAPI IDirectInputAImpl_EnumDevices(
 215         LPDIRECTINPUT7A iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKA lpCallback,
 216         LPVOID pvRef, DWORD dwFlags)
 217 {
 218     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 219     DIDEVICEINSTANCEA devInstance;
 220     int i, j, r;
 221
 222     TRACE("(this=%p,0x%04x '%s',%p,%p,%04x)\n",
 223           This, dwDevType, _dump_DIDEVTYPE_value(dwDevType),
 224           lpCallback, pvRef, dwFlags);
 225     TRACE(" flags: "); _dump_EnumDevices_dwFlags(dwFlags); TRACE("\n");
 226
 227     for (i = 0; i < NB_DINPUT_DEVICES; i++) {
 228         if (!dinput_devices[i]->enum_deviceA) continue;
 229         for (j = 0, r = -1; r != 0; j++) {
 230             devInstance.dwSize = sizeof(devInstance);
 231             TRACE("  - checking device %d ('%s')\n", i, dinput_devices[i]->name);
 232             if ((r = dinput_devices[i]->enum_deviceA(dwDevType, dwFlags, &devInstance, This->dwVersion, j))) {
 233                 if (lpCallback(&devInstance,pvRef) == DIENUM_STOP)
 234                     return 0;
 235             }
 236         }
 237     }
 238
 239     return 0;
 240 }
 241 /******************************************************************************
 242  *      IDirectInputW_EnumDevices
 243  */
 244 static HRESULT WINAPI IDirectInputWImpl_EnumDevices(
 245         LPDIRECTINPUT7W iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback,
 246         LPVOID pvRef, DWORD dwFlags)
 247 {
 248     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 249     DIDEVICEINSTANCEW devInstance;
 250     int i, j, r;
 251
 252     TRACE("(this=%p,0x%04x '%s',%p,%p,%04x)\n",
 253           This, dwDevType, _dump_DIDEVTYPE_value(dwDevType),
 254           lpCallback, pvRef, dwFlags);
 255     TRACE(" flags: "); _dump_EnumDevices_dwFlags(dwFlags); TRACE("\n");
 256
 257     for (i = 0; i < NB_DINPUT_DEVICES; i++) {
 258         if (!dinput_devices[i]->enum_deviceW) continue;
 259         for (j = 0, r = -1; r != 0; j++) {
 260             devInstance.dwSize = sizeof(devInstance);
 261             TRACE("  - checking device %d ('%s')\n", i, dinput_devices[i]->name);
 262             if ((r = dinput_devices[i]->enum_deviceW(dwDevType, dwFlags, &devInstance, This->dwVersion, j))) {
 263                 if (lpCallback(&devInstance,pvRef) == DIENUM_STOP)
 264                     return 0;
 265             }
 266         }
 267     }
 268
 269     return 0;
 270 }
 271
 272 static ULONG WINAPI IDirectInputAImpl_AddRef(LPDIRECTINPUT7A iface)
 273 {
 274     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 275     ULONG ref = InterlockedIncrement(&This->ref);
 276
 277     TRACE( "(%p) incrementing from %d\n", This, ref - 1);
 278     return ref;
 279 }
 280
 281 static ULONG WINAPI IDirectInputWImpl_AddRef(LPDIRECTINPUT7W iface)
 282 {
 283     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 284     return IDirectInputAImpl_AddRef( (IDirectInput7A *)This );
 285 }
 286
 287 static ULONG WINAPI IDirectInputAImpl_Release(LPDIRECTINPUT7A iface)
 288 {
 289     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 290     ULONG ref = InterlockedDecrement( &This->ref );
 291
 292     TRACE( "(%p) releasing from %d\n", This, ref + 1 );
 293
 294     if (ref) return ref;
 295
 296     /* Remove self from the list of the IDirectInputs */
 297     EnterCriticalSection( &dinput_hook_crit );
 298     list_remove( &This->entry );
 299     LeaveCriticalSection( &dinput_hook_crit );
 300
 301     check_hook_thread();
 302
 303     This->crit.DebugInfo->Spare[0] = 0;
 304     DeleteCriticalSection( &This->crit );
 305     HeapFree( GetProcessHeap(), 0, This );
 306
 307     return 0;
 308 }
 309
 310 static ULONG WINAPI IDirectInputWImpl_Release(LPDIRECTINPUT7W iface)
 311 {
 312     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 313     return IDirectInputAImpl_Release( (IDirectInput7A *)This );
 314 }
 315
 316 static HRESULT WINAPI IDirectInputAImpl_QueryInterface(LPDIRECTINPUT7A iface, REFIID riid, LPVOID *ppobj)
 317 {
 318     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 319
 320     TRACE( "(%p)->(%s,%p)\n", This, debugstr_guid(riid), ppobj );
 321
 322     if (IsEqualGUID( &IID_IUnknown, riid ) ||
 323         IsEqualGUID( &IID_IDirectInputA,  riid ) ||
 324         IsEqualGUID( &IID_IDirectInput2A, riid ) ||
 325         IsEqualGUID( &IID_IDirectInput7A, riid ))
 326     {
 327         *ppobj = &This->lpVtbl;
 328         IUnknown_AddRef( (IUnknown*)*ppobj );
 329
 330         return DI_OK;
 331     }
 332
 333     if (IsEqualGUID( &IID_IDirectInputW,  riid ) ||
 334         IsEqualGUID( &IID_IDirectInput2W, riid ) ||
 335         IsEqualGUID( &IID_IDirectInput7W, riid ))
 336     {
 337         *ppobj = &This->lpVtbl7w;
 338         IUnknown_AddRef( (IUnknown*)*ppobj );
 339
 340         return DI_OK;
 341     }
 342
 343     if (IsEqualGUID( &IID_IDirectInput8A, riid ))
 344     {
 345         *ppobj = &This->lpVtbl8a;
 346         IUnknown_AddRef( (IUnknown*)*ppobj );
 347
 348         return DI_OK;
 349     }
 350
 351     if (IsEqualGUID( &IID_IDirectInput8W, riid ))
 352     {
 353         *ppobj = &This->lpVtbl8w;
 354         IUnknown_AddRef( (IUnknown*)*ppobj );
 355
 356         return DI_OK;
 357     }
 358
 359     FIXME( "Unsupported interface !\n" );
 360     return E_FAIL;
 361 }
 362
 363 static HRESULT WINAPI IDirectInputWImpl_QueryInterface(LPDIRECTINPUT7W iface, REFIID riid, LPVOID *ppobj)
 364 {
 365     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 366     return IDirectInputAImpl_QueryInterface( (IDirectInput7A *)This, riid, ppobj );
 367 }
 368
 369 static HRESULT WINAPI IDirectInputAImpl_Initialize(LPDIRECTINPUT7A iface, HINSTANCE hinst, DWORD x) {
 370         TRACE("(this=%p,%p,%x)\n",iface, hinst, x);
 371
 372         /* Initialize can return: DIERR_BETADIRECTINPUTVERSION, DIERR_OLDDIRECTINPUTVERSION and DI_OK.
 373          * Since we already initialized the device, return DI_OK. In the past we returned DIERR_ALREADYINITIALIZED
 374          * which broke applications like Tomb Raider Legend because it isn't a legal return value.
 375          */
 376         return DI_OK;
 377 }
 378
 379 static HRESULT WINAPI IDirectInputWImpl_Initialize(LPDIRECTINPUT7W iface, HINSTANCE hinst, DWORD x)
 380 {
 381     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 382     return IDirectInputAImpl_Initialize( (IDirectInput7A *)This, hinst, x );
 383 }
 384
 385 static HRESULT WINAPI IDirectInputAImpl_GetDeviceStatus(LPDIRECTINPUT7A iface, REFGUID rguid)
 386 {
 387     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 388
 389     FIXME( "(%p)->(%s): stub\n", This, debugstr_guid(rguid) );
 390
 391     return DI_OK;
 392 }
 393
 394 static HRESULT WINAPI IDirectInputWImpl_GetDeviceStatus(LPDIRECTINPUT7W iface, REFGUID rguid)
 395 {
 396     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 397     return IDirectInputAImpl_GetDeviceStatus( (IDirectInput7A *)This, rguid );
 398 }
 399
 400 static HRESULT WINAPI IDirectInputAImpl_RunControlPanel(LPDIRECTINPUT7A iface,
 401                                                         HWND hwndOwner,
 402                                                         DWORD dwFlags)
 403 {
 404     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 405
 406     FIXME( "(%p)->(%p,%08x): stub\n", This, hwndOwner, dwFlags );
 407
 408     return DI_OK;
 409 }
 410
 411 static HRESULT WINAPI IDirectInputWImpl_RunControlPanel(LPDIRECTINPUT7W iface, HWND hwndOwner, DWORD dwFlags)
 412 {
 413     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 414     return IDirectInputAImpl_RunControlPanel( (IDirectInput7A *)This, hwndOwner, dwFlags );
 415 }
 416
 417 static HRESULT WINAPI IDirectInput2AImpl_FindDevice(LPDIRECTINPUT7A iface, REFGUID rguid,
 418                                                     LPCSTR pszName, LPGUID pguidInstance)
 419 {
 420     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 421
 422     FIXME( "(%p)->(%s, %s, %p): stub\n", This, debugstr_guid(rguid), pszName, pguidInstance );
 423
 424     return DI_OK;
 425 }
 426
 427 static HRESULT WINAPI IDirectInput2WImpl_FindDevice(LPDIRECTINPUT7W iface, REFGUID rguid,
 428                                                     LPCWSTR pszName, LPGUID pguidInstance)
 429 {
 430     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 431
 432     FIXME( "(%p)->(%s, %s, %p): stub\n", This, debugstr_guid(rguid), debugstr_w(pszName), pguidInstance );
 433
 434     return DI_OK;
 435 }
 436
 437 static HRESULT WINAPI IDirectInput7AImpl_CreateDeviceEx(LPDIRECTINPUT7A iface, REFGUID rguid,
 438                                                         REFIID riid, LPVOID* pvOut, LPUNKNOWN lpUnknownOuter)
 439 {
 440   IDirectInputImpl *This = (IDirectInputImpl *)iface;
 441   HRESULT ret_value = DIERR_DEVICENOTREG;
 442   int i;
 443
 444   TRACE("(%p)->(%s, %s, %p, %p)\n", This, debugstr_guid(rguid), debugstr_guid(riid), pvOut, lpUnknownOuter);
 445
 446   if (!rguid || !pvOut) return E_POINTER;
 447
 448   /* Loop on all the devices to see if anyone matches the given GUID */
 449   for (i = 0; i < NB_DINPUT_DEVICES; i++) {
 450     HRESULT ret;
 451
 452     if (!dinput_devices[i]->create_deviceA) continue;
 453     if ((ret = dinput_devices[i]->create_deviceA(This, rguid, riid, (LPDIRECTINPUTDEVICEA*) pvOut)) == DI_OK)
 454     {
 455       EnterCriticalSection( &This->crit );
 456       list_add_tail( &This->devices_list, &(*(IDirectInputDevice2AImpl**)pvOut)->entry );
 457       LeaveCriticalSection( &This->crit );
 458       return DI_OK;
 459     }
 460
 461     if (ret == DIERR_NOINTERFACE)
 462       ret_value = DIERR_NOINTERFACE;
 463   }
 464
 465   return ret_value;
 466 }
 467
 468 static HRESULT WINAPI IDirectInput7WImpl_CreateDeviceEx(LPDIRECTINPUT7W iface, REFGUID rguid,
 469                                                         REFIID riid, LPVOID* pvOut, LPUNKNOWN lpUnknownOuter)
 470 {
 471   IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 472   HRESULT ret_value = DIERR_DEVICENOTREG;
 473   int i;
 474
 475   TRACE("(%p)->(%s, %s, %p, %p)\n", This, debugstr_guid(rguid), debugstr_guid(riid), pvOut, lpUnknownOuter);
 476
 477   if (!rguid || !pvOut) return E_POINTER;
 478
 479   /* Loop on all the devices to see if anyone matches the given GUID */
 480   for (i = 0; i < NB_DINPUT_DEVICES; i++) {
 481     HRESULT ret;
 482
 483     if (!dinput_devices[i]->create_deviceW) continue;
 484     if ((ret = dinput_devices[i]->create_deviceW(This, rguid, riid, (LPDIRECTINPUTDEVICEW*) pvOut)) == DI_OK)
 485     {
 486       EnterCriticalSection( &This->crit );
 487       list_add_tail( &This->devices_list, &(*(IDirectInputDevice2AImpl**)pvOut)->entry );
 488       LeaveCriticalSection( &This->crit );
 489       return DI_OK;
 490     }
 491
 492     if (ret == DIERR_NOINTERFACE)
 493       ret_value = DIERR_NOINTERFACE;
 494   }
 495
 496   return ret_value;
 497 }
 498
 499 static HRESULT WINAPI IDirectInputAImpl_CreateDevice(LPDIRECTINPUT7A iface, REFGUID rguid,
 500                                                      LPDIRECTINPUTDEVICEA* pdev, LPUNKNOWN punk)
 501 {
 502     return IDirectInput7AImpl_CreateDeviceEx(iface, rguid, NULL, (LPVOID*)pdev, punk);
 503 }
 504
 505 static HRESULT WINAPI IDirectInputWImpl_CreateDevice(LPDIRECTINPUT7W iface, REFGUID rguid,
 506                                                      LPDIRECTINPUTDEVICEW* pdev, LPUNKNOWN punk)
 507 {
 508     return IDirectInput7WImpl_CreateDeviceEx(iface, rguid, NULL, (LPVOID*)pdev, punk);
 509 }
 510
 511 /*******************************************************************************
 512  *      DirectInput8
 513  */
 514
 515 static ULONG WINAPI IDirectInput8AImpl_AddRef(LPDIRECTINPUT8A iface)
 516 {
 517     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 518     return IDirectInputAImpl_AddRef( (IDirectInput7A *)This );
 519 }
 520
 521 static ULONG WINAPI IDirectInput8WImpl_AddRef(LPDIRECTINPUT8W iface)
 522 {
 523     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 524     return IDirectInputAImpl_AddRef( (IDirectInput7A *)This );
 525 }
 526
 527 static HRESULT WINAPI IDirectInput8AImpl_QueryInterface(LPDIRECTINPUT8A iface, REFIID riid, LPVOID *ppobj)
 528 {
 529     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 530     return IDirectInputAImpl_QueryInterface( (IDirectInput7A *)This, riid, ppobj );
 531 }
 532
 533 static HRESULT WINAPI IDirectInput8WImpl_QueryInterface(LPDIRECTINPUT8W iface, REFIID riid, LPVOID *ppobj)
 534 {
 535     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 536     return IDirectInputAImpl_QueryInterface( (IDirectInput7A *)This, riid, ppobj );
 537 }
 538
 539 static ULONG WINAPI IDirectInput8AImpl_Release(LPDIRECTINPUT8A iface)
 540 {
 541     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 542     return IDirectInputAImpl_Release( (IDirectInput7A *)This );
 543 }
 544
 545 static ULONG WINAPI IDirectInput8WImpl_Release(LPDIRECTINPUT8W iface)
 546 {
 547     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 548     return IDirectInputAImpl_Release( (IDirectInput7A *)This );
 549 }
 550
 551 static HRESULT WINAPI IDirectInput8AImpl_CreateDevice(LPDIRECTINPUT8A iface, REFGUID rguid,
 552                                                       LPDIRECTINPUTDEVICE8A* pdev, LPUNKNOWN punk)
 553 {
 554     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 555     return IDirectInput7AImpl_CreateDeviceEx( (IDirectInput7A *)This, rguid, NULL, (LPVOID*)pdev, punk );
 556 }
 557
 558 static HRESULT WINAPI IDirectInput8WImpl_CreateDevice(LPDIRECTINPUT8W iface, REFGUID rguid,
 559                                                       LPDIRECTINPUTDEVICE8W* pdev, LPUNKNOWN punk)
 560 {
 561     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 562     return IDirectInput7WImpl_CreateDeviceEx( IDirectInput7W_from_impl( This ), rguid, NULL, (LPVOID*)pdev, punk );
 563 }
 564
 565 static HRESULT WINAPI IDirectInput8AImpl_EnumDevices(LPDIRECTINPUT8A iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKA lpCallback,
 566                                                      LPVOID pvRef, DWORD dwFlags)
 567 {
 568     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 569     return IDirectInputAImpl_EnumDevices( (IDirectInput7A *)This, dwDevType, lpCallback, pvRef, dwFlags );
 570 }
 571
 572 static HRESULT WINAPI IDirectInput8WImpl_EnumDevices(LPDIRECTINPUT8W iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback,
 573                                                      LPVOID pvRef, DWORD dwFlags)
 574 {
 575     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 576     return IDirectInputWImpl_EnumDevices( IDirectInput7W_from_impl( This ), dwDevType, lpCallback, pvRef, dwFlags );
 577 }
 578
 579 static HRESULT WINAPI IDirectInput8AImpl_GetDeviceStatus(LPDIRECTINPUT8A iface, REFGUID rguid)
 580 {
 581     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 582     return IDirectInputAImpl_GetDeviceStatus( (IDirectInput7A *)This, rguid );
 583 }
 584
 585 static HRESULT WINAPI IDirectInput8WImpl_GetDeviceStatus(LPDIRECTINPUT8W iface, REFGUID rguid)
 586 {
 587     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 588     return IDirectInputAImpl_GetDeviceStatus( (IDirectInput7A *)This, rguid );
 589 }
 590
 591 static HRESULT WINAPI IDirectInput8AImpl_RunControlPanel(LPDIRECTINPUT8A iface, HWND hwndOwner, DWORD dwFlags)
 592 {
 593     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 594     return IDirectInputAImpl_RunControlPanel( (IDirectInput7A *)This, hwndOwner, dwFlags );
 595 }
 596
 597 static HRESULT WINAPI IDirectInput8WImpl_RunControlPanel(LPDIRECTINPUT8W iface, HWND hwndOwner, DWORD dwFlags)
 598 {
 599     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 600     return IDirectInputAImpl_RunControlPanel( (IDirectInput7A *)This, hwndOwner, dwFlags );
 601 }
 602
 603 static HRESULT WINAPI IDirectInput8AImpl_Initialize(LPDIRECTINPUT8A iface, HINSTANCE hinst, DWORD x)
 604 {
 605     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 606     return IDirectInputAImpl_Initialize( (IDirectInput7A *)This, hinst, x );
 607 }
 608
 609 static HRESULT WINAPI IDirectInput8WImpl_Initialize(LPDIRECTINPUT8W iface, HINSTANCE hinst, DWORD x)
 610 {
 611     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 612     return IDirectInputAImpl_Initialize( (IDirectInput7A *)This, hinst, x );
 613 }
 614
 615 static HRESULT WINAPI IDirectInput8AImpl_FindDevice(LPDIRECTINPUT8A iface, REFGUID rguid, LPCSTR pszName, LPGUID pguidInstance)
 616 {
 617     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 618     return IDirectInput2AImpl_FindDevice( (IDirectInput7A *)This, rguid, pszName, pguidInstance );
 619 }
 620
 621 static HRESULT WINAPI IDirectInput8WImpl_FindDevice(LPDIRECTINPUT8W iface, REFGUID rguid, LPCWSTR pszName, LPGUID pguidInstance)
 622 {
 623     IDirectInput7W *This = IDirectInput7W_from_impl( impl_from_IDirectInput8W( iface ) );
 624     return IDirectInput2WImpl_FindDevice( This, rguid, pszName, pguidInstance );
 625 }
 626
 627 static HRESULT WINAPI IDirectInput8AImpl_EnumDevicesBySemantics(
 628       LPDIRECTINPUT8A iface, LPCSTR ptszUserName, LPDIACTIONFORMATA lpdiActionFormat,
 629       LPDIENUMDEVICESBYSEMANTICSCBA lpCallback,
 630       LPVOID pvRef, DWORD dwFlags
 631 )
 632 {
 633       IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 634
 635       FIXME("(this=%p,%s,%p,%p,%p,%04x): stub\n", This, ptszUserName, lpdiActionFormat,
 636             lpCallback, pvRef, dwFlags);
 637       return 0;
 638 }
 639
 640 static HRESULT WINAPI IDirectInput8WImpl_EnumDevicesBySemantics(
 641       LPDIRECTINPUT8W iface, LPCWSTR ptszUserName, LPDIACTIONFORMATW lpdiActionFormat,
 642       LPDIENUMDEVICESBYSEMANTICSCBW lpCallback,
 643       LPVOID pvRef, DWORD dwFlags
 644 )
 645 {
 646       IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 647
 648       FIXME("(this=%p,%s,%p,%p,%p,%04x): stub\n", This, debugstr_w(ptszUserName), lpdiActionFormat,
 649             lpCallback, pvRef, dwFlags);
 650       return 0;
 651 }
 652
 653 static HRESULT WINAPI IDirectInput8AImpl_ConfigureDevices(
 654       LPDIRECTINPUT8A iface, LPDICONFIGUREDEVICESCALLBACK lpdiCallback,
 655       LPDICONFIGUREDEVICESPARAMSA lpdiCDParams, DWORD dwFlags, LPVOID pvRefData
 656 )
 657 {
 658       IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 659
 660       FIXME("(this=%p,%p,%p,%04x,%p): stub\n", This, lpdiCallback, lpdiCDParams,
 661             dwFlags, pvRefData);
 662       return 0;
 663 }
 664
 665 static HRESULT WINAPI IDirectInput8WImpl_ConfigureDevices(
 666       LPDIRECTINPUT8W iface, LPDICONFIGUREDEVICESCALLBACK lpdiCallback,
 667       LPDICONFIGUREDEVICESPARAMSW lpdiCDParams, DWORD dwFlags, LPVOID pvRefData
 668 )
 669 {
 670       IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 671
 672       FIXME("(this=%p,%p,%p,%04x,%p): stub\n", This, lpdiCallback, lpdiCDParams,
 673             dwFlags, pvRefData);
 674       return 0;
 675 }
 676
 677 static const IDirectInput7AVtbl ddi7avt = {
 678     IDirectInputAImpl_QueryInterface,
 679     IDirectInputAImpl_AddRef,
 680     IDirectInputAImpl_Release,
 681     IDirectInputAImpl_CreateDevice,
 682     IDirectInputAImpl_EnumDevices,
 683     IDirectInputAImpl_GetDeviceStatus,
 684     IDirectInputAImpl_RunControlPanel,
 685     IDirectInputAImpl_Initialize,
 686     IDirectInput2AImpl_FindDevice,
 687     IDirectInput7AImpl_CreateDeviceEx
 688 };
 689
 690 static const IDirectInput7WVtbl ddi7wvt = {
 691     IDirectInputWImpl_QueryInterface,
 692     IDirectInputWImpl_AddRef,
 693     IDirectInputWImpl_Release,
 694     IDirectInputWImpl_CreateDevice,
 695     IDirectInputWImpl_EnumDevices,
 696     IDirectInputWImpl_GetDeviceStatus,
 697     IDirectInputWImpl_RunControlPanel,
 698     IDirectInputWImpl_Initialize,
 699     IDirectInput2WImpl_FindDevice,
 700     IDirectInput7WImpl_CreateDeviceEx
 701 };
 702
 703 static const IDirectInput8AVtbl ddi8avt = {
 704     IDirectInput8AImpl_QueryInterface,
 705     IDirectInput8AImpl_AddRef,
 706     IDirectInput8AImpl_Release,
 707     IDirectInput8AImpl_CreateDevice,
 708     IDirectInput8AImpl_EnumDevices,
 709     IDirectInput8AImpl_GetDeviceStatus,
 710     IDirectInput8AImpl_RunControlPanel,
 711     IDirectInput8AImpl_Initialize,
 712     IDirectInput8AImpl_FindDevice,
 713     IDirectInput8AImpl_EnumDevicesBySemantics,
 714     IDirectInput8AImpl_ConfigureDevices
 715 };
 716
 717 static const IDirectInput8WVtbl ddi8wvt = {
 718     IDirectInput8WImpl_QueryInterface,
 719     IDirectInput8WImpl_AddRef,
 720     IDirectInput8WImpl_Release,
 721     IDirectInput8WImpl_CreateDevice,
 722     IDirectInput8WImpl_EnumDevices,
 723     IDirectInput8WImpl_GetDeviceStatus,
 724     IDirectInput8WImpl_RunControlPanel,
 725     IDirectInput8WImpl_Initialize,
 726     IDirectInput8WImpl_FindDevice,
 727     IDirectInput8WImpl_EnumDevicesBySemantics,
 728     IDirectInput8WImpl_ConfigureDevices
 729 };
 730
 731 /*******************************************************************************
 732  * DirectInput ClassFactory
 733  */
 734 typedef struct
 735 {
 736     /* IUnknown fields */
 737     const IClassFactoryVtbl    *lpVtbl;
 738     LONG                        ref;
 739 } IClassFactoryImpl;
 740
 741 static HRESULT WINAPI DICF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
 742         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 743
 744         FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
 745         return E_NOINTERFACE;
 746 }
 747
 748 static ULONG WINAPI DICF_AddRef(LPCLASSFACTORY iface) {
 749         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 750         return InterlockedIncrement(&(This->ref));
 751 }
 752
 753 static ULONG WINAPI DICF_Release(LPCLASSFACTORY iface) {
 754         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 755         /* static class, won't be  freed */
 756         return InterlockedDecrement(&(This->ref));
 757 }
 758
 759 static HRESULT WINAPI DICF_CreateInstance(
 760         LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
 761 ) {
 762         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 763
 764         TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 765         if ( IsEqualGUID( &IID_IDirectInputA, riid ) ||
 766              IsEqualGUID( &IID_IDirectInputW, riid ) ||
 767              IsEqualGUID( &IID_IDirectInput2A, riid ) ||
 768              IsEqualGUID( &IID_IDirectInput2W, riid ) ||
 769              IsEqualGUID( &IID_IDirectInput7A, riid ) ||
 770              IsEqualGUID( &IID_IDirectInput7W, riid ) ||
 771              IsEqualGUID( &IID_IDirectInput8A, riid ) ||
 772              IsEqualGUID( &IID_IDirectInput8W, riid ) ) {
 773                 /* FIXME: reuse already created dinput if present? */
 774                 return DirectInputCreateEx(0,0,riid,ppobj,pOuter);
 775         }
 776
 777         FIXME("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
 778         return E_NOINTERFACE;
 779 }
 780
 781 static HRESULT WINAPI DICF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 782         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 783         FIXME("(%p)->(%d),stub!\n",This,dolock);
 784         return S_OK;
 785 }
 786
 787 static const IClassFactoryVtbl DICF_Vtbl = {
 788         DICF_QueryInterface,
 789         DICF_AddRef,
 790         DICF_Release,
 791         DICF_CreateInstance,
 792         DICF_LockServer
 793 };
 794 static IClassFactoryImpl DINPUT_CF = {&DICF_Vtbl, 1 };
 795
 796 /***********************************************************************
 797  *              DllCanUnloadNow (DINPUT.@)
 798  */
 799 HRESULT WINAPI DllCanUnloadNow(void)
 800 {
 801     FIXME("(void): stub\n");
 802
 803     return S_FALSE;
 804 }
 805
 806 /***********************************************************************
 807  *              DllGetClassObject (DINPUT.@)
 808  */
 809 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 810 {
 811     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 812     if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 813         *ppv = (LPVOID)&DINPUT_CF;
 814         IClassFactory_AddRef((IClassFactory*)*ppv);
 815     return S_OK;
 816     }
 817
 818     FIXME("(%s,%s,%p): no interface found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 819     return CLASS_E_CLASSNOTAVAILABLE;
 820 }
 821
 822 /******************************************************************************
 823  *      DInput hook thread
 824  */
 825
 826 static LRESULT CALLBACK LL_hook_proc( int code, WPARAM wparam, LPARAM lparam )
 827 {
 828     IDirectInputImpl *dinput;
 829
 830     if (code != HC_ACTION) return CallNextHookEx( 0, code, wparam, lparam );
 831
 832     EnterCriticalSection( &dinput_hook_crit );
 833     LIST_FOR_EACH_ENTRY( dinput, &direct_input_list, IDirectInputImpl, entry )
 834     {
 835         IDirectInputDevice2AImpl *dev;
 836
 837         EnterCriticalSection( &dinput->crit );
 838         LIST_FOR_EACH_ENTRY( dev, &dinput->devices_list, IDirectInputDevice2AImpl, entry )
 839             if (dev->acquired && dev->event_proc)
 840             {
 841                 TRACE("calling %p->%p (%lx %lx)\n", dev, dev->event_proc, wparam, lparam);
 842                 dev->event_proc( (LPDIRECTINPUTDEVICE8A)dev, wparam, lparam );
 843             }
 844         LeaveCriticalSection( &dinput->crit );
 845     }
 846     LeaveCriticalSection( &dinput_hook_crit );
 847
 848     return CallNextHookEx( 0, code, wparam, lparam );
 849 }
 850
 851 static LRESULT CALLBACK callwndproc_proc( int code, WPARAM wparam, LPARAM lparam )
 852 {
 853     CWPSTRUCT *msg = (CWPSTRUCT *)lparam;
 854     IDirectInputImpl *dinput;
 855     HWND foreground;
 856
 857     if (code != HC_ACTION || (msg->message != WM_KILLFOCUS &&
 858         msg->message != WM_ACTIVATEAPP && msg->message != WM_ACTIVATE))
 859         return CallNextHookEx( 0, code, wparam, lparam );
 860
 861     foreground = GetForegroundWindow();
 862
 863     EnterCriticalSection( &dinput_hook_crit );
 864
 865     LIST_FOR_EACH_ENTRY( dinput, &direct_input_list, IDirectInputImpl, entry )
 866     {
 867         IDirectInputDevice2AImpl *dev;
 868
 869         EnterCriticalSection( &dinput->crit );
 870         LIST_FOR_EACH_ENTRY( dev, &dinput->devices_list, IDirectInputDevice2AImpl, entry )
 871         {
 872             if (!dev->acquired) continue;
 873
 874             if (msg->hwnd == dev->win && msg->hwnd != foreground)
 875             {
 876                 TRACE( "%p window is not foreground - unacquiring %p\n", dev->win, dev );
 877                 IDirectInputDevice_Unacquire( (LPDIRECTINPUTDEVICE8A)dev );
 878             }
 879         }
 880         LeaveCriticalSection( &dinput->crit );
 881     }
 882     LeaveCriticalSection( &dinput_hook_crit );
 883
 884     return CallNextHookEx( 0, code, wparam, lparam );
 885 }
 886
 887 static DWORD WINAPI hook_thread_proc(void *param)
 888 {
 889     static HHOOK kbd_hook, mouse_hook;
 890     MSG msg;
 891
 892     /* Force creation of the message queue */
 893     PeekMessageW( &msg, 0, 0, 0, PM_NOREMOVE );
 894     SetEvent(*(LPHANDLE)param);
 895
 896     while (GetMessageW( &msg, 0, 0, 0 ))
 897     {
 898         UINT kbd_cnt = 0, mice_cnt = 0;
 899
 900         if (msg.message == WM_USER+0x10)
 901         {
 902             IDirectInputImpl *dinput;
 903
 904             TRACE( "Processing hook change notification lp:%ld\n", msg.lParam );
 905
 906             if (!msg.wParam && !msg.lParam)
 907             {
 908                 if (kbd_hook) UnhookWindowsHookEx( kbd_hook );
 909                 if (mouse_hook) UnhookWindowsHookEx( mouse_hook );
 910                 kbd_hook = mouse_hook = NULL;
 911                 break;
 912             }
 913
 914             EnterCriticalSection( &dinput_hook_crit );
 915
 916             /* Count acquired keyboards and mice*/
 917             LIST_FOR_EACH_ENTRY( dinput, &direct_input_list, IDirectInputImpl, entry )
 918             {
 919                 IDirectInputDevice2AImpl *dev;
 920
 921                 EnterCriticalSection( &dinput->crit );
 922                 LIST_FOR_EACH_ENTRY( dev, &dinput->devices_list, IDirectInputDevice2AImpl, entry )
 923                 {
 924                     if (!dev->acquired) continue;
 925
 926                     if (IsEqualGUID( &dev->guid, &GUID_SysKeyboard ) ||
 927                         IsEqualGUID( &dev->guid, &DInput_Wine_Keyboard_GUID ))
 928                         kbd_cnt++;
 929                     else
 930                         if (IsEqualGUID( &dev->guid, &GUID_SysMouse ) ||
 931                             IsEqualGUID( &dev->guid, &DInput_Wine_Mouse_GUID ))
 932                             mice_cnt++;
 933                 }
 934                 LeaveCriticalSection( &dinput->crit );
 935             }
 936             LeaveCriticalSection( &dinput_hook_crit );
 937
 938             if (kbd_cnt && !kbd_hook)
 939                 kbd_hook = SetWindowsHookExW( WH_KEYBOARD_LL, LL_hook_proc, DINPUT_instance, 0 );
 940             else if (!kbd_cnt && kbd_hook)
 941             {
 942                 UnhookWindowsHookEx( kbd_hook );
 943                 kbd_hook = NULL;
 944             }
 945
 946             if (mice_cnt && !mouse_hook)
 947                 mouse_hook = SetWindowsHookExW( WH_MOUSE_LL, LL_hook_proc, DINPUT_instance, 0 );
 948             else if (!mice_cnt && mouse_hook)
 949             {
 950                 UnhookWindowsHookEx( mouse_hook );
 951                 mouse_hook = NULL;
 952             }
 953         }
 954         TranslateMessage(&msg);
 955         DispatchMessageW(&msg);
 956     }
 957
 958     return 0;
 959 }
 960
 961 static DWORD hook_thread_id;
 962
 963 static CRITICAL_SECTION_DEBUG dinput_critsect_debug =
 964 {
 965     0, 0, &dinput_hook_crit,
 966     { &dinput_critsect_debug.ProcessLocksList, &dinput_critsect_debug.ProcessLocksList },
 967       0, 0, { (DWORD_PTR)(__FILE__ ": dinput_hook_crit") }
 968 };
 969 static CRITICAL_SECTION dinput_hook_crit = { &dinput_critsect_debug, -1, 0, 0, 0, 0 };
 970
 971 static BOOL check_hook_thread(void)
 972 {
 973     static HANDLE hook_thread;
 974
 975     EnterCriticalSection(&dinput_hook_crit);
 976
 977     TRACE("IDirectInputs left: %d\n", list_count(&direct_input_list));
 978     if (!list_empty(&direct_input_list) && !hook_thread)
 979     {
 980         HANDLE event;
 981
 982         event = CreateEventW(NULL, FALSE, FALSE, NULL);
 983         hook_thread = CreateThread(NULL, 0, hook_thread_proc, &event, 0, &hook_thread_id);
 984         if (event && hook_thread)
 985         {
 986             HANDLE handles[2];
 987             handles[0] = event;
 988             handles[1] = hook_thread;
 989             WaitForMultipleObjects(2, handles, FALSE, INFINITE);
 990         }
 991         LeaveCriticalSection(&dinput_hook_crit);
 992         CloseHandle(event);
 993     }
 994     else if (list_empty(&direct_input_list) && hook_thread)
 995     {
 996         DWORD tid = hook_thread_id;
 997
 998         hook_thread_id = 0;
 999         PostThreadMessageW(tid, WM_USER+0x10, 0, 0);
1000         LeaveCriticalSection(&dinput_hook_crit);
1001
1002         /* wait for hook thread to exit */
1003         WaitForSingleObject(hook_thread, INFINITE);
1004         CloseHandle(hook_thread);
1005         hook_thread = NULL;
1006     }
1007     else
1008         LeaveCriticalSection(&dinput_hook_crit);
1009
1010     return hook_thread_id != 0;
1011 }
1012
1013 void check_dinput_hooks(LPDIRECTINPUTDEVICE8A iface)
1014 {
1015     static HHOOK callwndproc_hook;
1016     static ULONG foreground_cnt;
1017     IDirectInputDevice2AImpl *dev = (IDirectInputDevice2AImpl *)iface;
1018
1019     EnterCriticalSection(&dinput_hook_crit);
1020
1021     if (dev->dwCoopLevel & DISCL_FOREGROUND)
1022     {
1023         if (dev->acquired)
1024             foreground_cnt++;
1025         else
1026             foreground_cnt--;
1027     }
1028
1029     if (foreground_cnt && !callwndproc_hook)
1030         callwndproc_hook = SetWindowsHookExW( WH_CALLWNDPROC, callwndproc_proc,
1031                                               DINPUT_instance, GetCurrentThreadId() );
1032     else if (!foreground_cnt && callwndproc_hook)
1033     {
1034         UnhookWindowsHookEx( callwndproc_hook );
1035         callwndproc_hook = NULL;
1036     }
1037
1038     PostThreadMessageW( hook_thread_id, WM_USER+0x10, 1, 0 );
1039
1040     LeaveCriticalSection(&dinput_hook_crit);
1041 }