dlls/dinput/dinput_main.c

   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 CONTAINING_RECORD( iface, IDirectInputImpl, lpVtbl7w );
  59 }
  60
  61 static inline IDirectInputImpl *impl_from_IDirectInput8A( IDirectInput8A *iface )
  62 {
  63     return CONTAINING_RECORD( iface, IDirectInputImpl, lpVtbl8a );
  64 }
  65
  66 static inline IDirectInputImpl *impl_from_IDirectInput8W( IDirectInput8W *iface )
  67 {
  68     return 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         TRACE(" flags: ");
 202         if (dwFlags == 0) {
 203             TRACE("DIEDFL_ALLDEVICES");
 204             return;
 205         }
 206         for (i = 0; i < (sizeof(flags) / sizeof(flags[0])); i++)
 207             if (flags[i].mask & dwFlags)
 208                 TRACE("%s ",flags[i].name);
 209     }
 210     TRACE("\n");
 211 }
 212
 213 /******************************************************************************
 214  *      IDirectInputA_EnumDevices
 215  */
 216 static HRESULT WINAPI IDirectInputAImpl_EnumDevices(
 217         LPDIRECTINPUT7A iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKA lpCallback,
 218         LPVOID pvRef, DWORD dwFlags)
 219 {
 220     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 221     DIDEVICEINSTANCEA devInstance;
 222     int i, j, r;
 223
 224     TRACE("(this=%p,0x%04x '%s',%p,%p,%04x)\n",
 225           This, dwDevType, _dump_DIDEVTYPE_value(dwDevType),
 226           lpCallback, pvRef, dwFlags);
 227     _dump_EnumDevices_dwFlags(dwFlags);
 228
 229     for (i = 0; i < NB_DINPUT_DEVICES; i++) {
 230         if (!dinput_devices[i]->enum_deviceA) continue;
 231         for (j = 0, r = -1; r != 0; j++) {
 232             devInstance.dwSize = sizeof(devInstance);
 233             TRACE("  - checking device %d ('%s')\n", i, dinput_devices[i]->name);
 234             if ((r = dinput_devices[i]->enum_deviceA(dwDevType, dwFlags, &devInstance, This->dwVersion, j))) {
 235                 if (lpCallback(&devInstance,pvRef) == DIENUM_STOP)
 236                     return 0;
 237             }
 238         }
 239     }
 240
 241     return 0;
 242 }
 243 /******************************************************************************
 244  *      IDirectInputW_EnumDevices
 245  */
 246 static HRESULT WINAPI IDirectInputWImpl_EnumDevices(
 247         LPDIRECTINPUT7W iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback,
 248         LPVOID pvRef, DWORD dwFlags)
 249 {
 250     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 251     DIDEVICEINSTANCEW devInstance;
 252     int i, j, r;
 253
 254     TRACE("(this=%p,0x%04x '%s',%p,%p,%04x)\n",
 255           This, dwDevType, _dump_DIDEVTYPE_value(dwDevType),
 256           lpCallback, pvRef, dwFlags);
 257     _dump_EnumDevices_dwFlags(dwFlags);
 258
 259     for (i = 0; i < NB_DINPUT_DEVICES; i++) {
 260         if (!dinput_devices[i]->enum_deviceW) continue;
 261         for (j = 0, r = -1; r != 0; j++) {
 262             devInstance.dwSize = sizeof(devInstance);
 263             TRACE("  - checking device %d ('%s')\n", i, dinput_devices[i]->name);
 264             if ((r = dinput_devices[i]->enum_deviceW(dwDevType, dwFlags, &devInstance, This->dwVersion, j))) {
 265                 if (lpCallback(&devInstance,pvRef) == DIENUM_STOP)
 266                     return 0;
 267             }
 268         }
 269     }
 270
 271     return 0;
 272 }
 273
 274 static ULONG WINAPI IDirectInputAImpl_AddRef(LPDIRECTINPUT7A iface)
 275 {
 276     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 277     ULONG ref = InterlockedIncrement(&This->ref);
 278
 279     TRACE( "(%p) incrementing from %d\n", This, ref - 1);
 280     return ref;
 281 }
 282
 283 static ULONG WINAPI IDirectInputWImpl_AddRef(LPDIRECTINPUT7W iface)
 284 {
 285     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 286     return IDirectInputAImpl_AddRef( (IDirectInput7A *)This );
 287 }
 288
 289 static ULONG WINAPI IDirectInputAImpl_Release(LPDIRECTINPUT7A iface)
 290 {
 291     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 292     ULONG ref = InterlockedDecrement( &This->ref );
 293
 294     TRACE( "(%p) releasing from %d\n", This, ref + 1 );
 295
 296     if (ref) return ref;
 297
 298     /* Remove self from the list of the IDirectInputs */
 299     EnterCriticalSection( &dinput_hook_crit );
 300     list_remove( &This->entry );
 301     LeaveCriticalSection( &dinput_hook_crit );
 302
 303     check_hook_thread();
 304
 305     This->crit.DebugInfo->Spare[0] = 0;
 306     DeleteCriticalSection( &This->crit );
 307     HeapFree( GetProcessHeap(), 0, This );
 308
 309     return 0;
 310 }
 311
 312 static ULONG WINAPI IDirectInputWImpl_Release(LPDIRECTINPUT7W iface)
 313 {
 314     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 315     return IDirectInputAImpl_Release( (IDirectInput7A *)This );
 316 }
 317
 318 static HRESULT WINAPI IDirectInputAImpl_QueryInterface(LPDIRECTINPUT7A iface, REFIID riid, LPVOID *ppobj)
 319 {
 320     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 321
 322     TRACE( "(%p)->(%s,%p)\n", This, debugstr_guid(riid), ppobj );
 323
 324     if (IsEqualGUID( &IID_IUnknown, riid ) ||
 325         IsEqualGUID( &IID_IDirectInputA,  riid ) ||
 326         IsEqualGUID( &IID_IDirectInput2A, riid ) ||
 327         IsEqualGUID( &IID_IDirectInput7A, riid ))
 328     {
 329         *ppobj = &This->lpVtbl;
 330         IUnknown_AddRef( (IUnknown*)*ppobj );
 331
 332         return DI_OK;
 333     }
 334
 335     if (IsEqualGUID( &IID_IDirectInputW,  riid ) ||
 336         IsEqualGUID( &IID_IDirectInput2W, riid ) ||
 337         IsEqualGUID( &IID_IDirectInput7W, riid ))
 338     {
 339         *ppobj = &This->lpVtbl7w;
 340         IUnknown_AddRef( (IUnknown*)*ppobj );
 341
 342         return DI_OK;
 343     }
 344
 345     if (IsEqualGUID( &IID_IDirectInput8A, riid ))
 346     {
 347         *ppobj = &This->lpVtbl8a;
 348         IUnknown_AddRef( (IUnknown*)*ppobj );
 349
 350         return DI_OK;
 351     }
 352
 353     if (IsEqualGUID( &IID_IDirectInput8W, riid ))
 354     {
 355         *ppobj = &This->lpVtbl8w;
 356         IUnknown_AddRef( (IUnknown*)*ppobj );
 357
 358         return DI_OK;
 359     }
 360
 361     FIXME( "Unsupported interface !\n" );
 362     return E_FAIL;
 363 }
 364
 365 static HRESULT WINAPI IDirectInputWImpl_QueryInterface(LPDIRECTINPUT7W iface, REFIID riid, LPVOID *ppobj)
 366 {
 367     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 368     return IDirectInputAImpl_QueryInterface( (IDirectInput7A *)This, riid, ppobj );
 369 }
 370
 371 static HRESULT WINAPI IDirectInputAImpl_Initialize(LPDIRECTINPUT7A iface, HINSTANCE hinst, DWORD x) {
 372         TRACE("(this=%p,%p,%x)\n",iface, hinst, x);
 373
 374         /* Initialize can return: DIERR_BETADIRECTINPUTVERSION, DIERR_OLDDIRECTINPUTVERSION and DI_OK.
 375          * Since we already initialized the device, return DI_OK. In the past we returned DIERR_ALREADYINITIALIZED
 376          * which broke applications like Tomb Raider Legend because it isn't a legal return value.
 377          */
 378         return DI_OK;
 379 }
 380
 381 static HRESULT WINAPI IDirectInputWImpl_Initialize(LPDIRECTINPUT7W iface, HINSTANCE hinst, DWORD x)
 382 {
 383     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 384     return IDirectInputAImpl_Initialize( (IDirectInput7A *)This, hinst, x );
 385 }
 386
 387 static HRESULT WINAPI IDirectInputAImpl_GetDeviceStatus(LPDIRECTINPUT7A iface, REFGUID rguid)
 388 {
 389     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 390
 391     FIXME( "(%p)->(%s): stub\n", This, debugstr_guid(rguid) );
 392
 393     return DI_OK;
 394 }
 395
 396 static HRESULT WINAPI IDirectInputWImpl_GetDeviceStatus(LPDIRECTINPUT7W iface, REFGUID rguid)
 397 {
 398     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 399     return IDirectInputAImpl_GetDeviceStatus( (IDirectInput7A *)This, rguid );
 400 }
 401
 402 static HRESULT WINAPI IDirectInputAImpl_RunControlPanel(LPDIRECTINPUT7A iface,
 403                                                         HWND hwndOwner,
 404                                                         DWORD dwFlags)
 405 {
 406     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 407
 408     FIXME( "(%p)->(%p,%08x): stub\n", This, hwndOwner, dwFlags );
 409
 410     return DI_OK;
 411 }
 412
 413 static HRESULT WINAPI IDirectInputWImpl_RunControlPanel(LPDIRECTINPUT7W iface, HWND hwndOwner, DWORD dwFlags)
 414 {
 415     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 416     return IDirectInputAImpl_RunControlPanel( (IDirectInput7A *)This, hwndOwner, dwFlags );
 417 }
 418
 419 static HRESULT WINAPI IDirectInput2AImpl_FindDevice(LPDIRECTINPUT7A iface, REFGUID rguid,
 420                                                     LPCSTR pszName, LPGUID pguidInstance)
 421 {
 422     IDirectInputImpl *This = (IDirectInputImpl *)iface;
 423
 424     FIXME( "(%p)->(%s, %s, %p): stub\n", This, debugstr_guid(rguid), pszName, pguidInstance );
 425
 426     return DI_OK;
 427 }
 428
 429 static HRESULT WINAPI IDirectInput2WImpl_FindDevice(LPDIRECTINPUT7W iface, REFGUID rguid,
 430                                                     LPCWSTR pszName, LPGUID pguidInstance)
 431 {
 432     IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 433
 434     FIXME( "(%p)->(%s, %s, %p): stub\n", This, debugstr_guid(rguid), debugstr_w(pszName), pguidInstance );
 435
 436     return DI_OK;
 437 }
 438
 439 static HRESULT WINAPI IDirectInput7AImpl_CreateDeviceEx(LPDIRECTINPUT7A iface, REFGUID rguid,
 440                                                         REFIID riid, LPVOID* pvOut, LPUNKNOWN lpUnknownOuter)
 441 {
 442   IDirectInputImpl *This = (IDirectInputImpl *)iface;
 443   HRESULT ret_value = DIERR_DEVICENOTREG;
 444   int i;
 445
 446   TRACE("(%p)->(%s, %s, %p, %p)\n", This, debugstr_guid(rguid), debugstr_guid(riid), pvOut, lpUnknownOuter);
 447
 448   if (!rguid || !pvOut) return E_POINTER;
 449
 450   /* Loop on all the devices to see if anyone matches the given GUID */
 451   for (i = 0; i < NB_DINPUT_DEVICES; i++) {
 452     HRESULT ret;
 453
 454     if (!dinput_devices[i]->create_deviceA) continue;
 455     if ((ret = dinput_devices[i]->create_deviceA(This, rguid, riid, (LPDIRECTINPUTDEVICEA*) pvOut)) == DI_OK)
 456     {
 457       EnterCriticalSection( &This->crit );
 458       list_add_tail( &This->devices_list, &(*(IDirectInputDevice2AImpl**)pvOut)->entry );
 459       LeaveCriticalSection( &This->crit );
 460       return DI_OK;
 461     }
 462
 463     if (ret == DIERR_NOINTERFACE)
 464       ret_value = DIERR_NOINTERFACE;
 465   }
 466
 467   return ret_value;
 468 }
 469
 470 static HRESULT WINAPI IDirectInput7WImpl_CreateDeviceEx(LPDIRECTINPUT7W iface, REFGUID rguid,
 471                                                         REFIID riid, LPVOID* pvOut, LPUNKNOWN lpUnknownOuter)
 472 {
 473   IDirectInputImpl *This = impl_from_IDirectInput7W( iface );
 474   HRESULT ret_value = DIERR_DEVICENOTREG;
 475   int i;
 476
 477   TRACE("(%p)->(%s, %s, %p, %p)\n", This, debugstr_guid(rguid), debugstr_guid(riid), pvOut, lpUnknownOuter);
 478
 479   if (!rguid || !pvOut) return E_POINTER;
 480
 481   /* Loop on all the devices to see if anyone matches the given GUID */
 482   for (i = 0; i < NB_DINPUT_DEVICES; i++) {
 483     HRESULT ret;
 484
 485     if (!dinput_devices[i]->create_deviceW) continue;
 486     if ((ret = dinput_devices[i]->create_deviceW(This, rguid, riid, (LPDIRECTINPUTDEVICEW*) pvOut)) == DI_OK)
 487     {
 488       EnterCriticalSection( &This->crit );
 489       list_add_tail( &This->devices_list, &(*(IDirectInputDevice2AImpl**)pvOut)->entry );
 490       LeaveCriticalSection( &This->crit );
 491       return DI_OK;
 492     }
 493
 494     if (ret == DIERR_NOINTERFACE)
 495       ret_value = DIERR_NOINTERFACE;
 496   }
 497
 498   return ret_value;
 499 }
 500
 501 static HRESULT WINAPI IDirectInputAImpl_CreateDevice(LPDIRECTINPUT7A iface, REFGUID rguid,
 502                                                      LPDIRECTINPUTDEVICEA* pdev, LPUNKNOWN punk)
 503 {
 504     return IDirectInput7AImpl_CreateDeviceEx(iface, rguid, NULL, (LPVOID*)pdev, punk);
 505 }
 506
 507 static HRESULT WINAPI IDirectInputWImpl_CreateDevice(LPDIRECTINPUT7W iface, REFGUID rguid,
 508                                                      LPDIRECTINPUTDEVICEW* pdev, LPUNKNOWN punk)
 509 {
 510     return IDirectInput7WImpl_CreateDeviceEx(iface, rguid, NULL, (LPVOID*)pdev, punk);
 511 }
 512
 513 /*******************************************************************************
 514  *      DirectInput8
 515  */
 516
 517 static ULONG WINAPI IDirectInput8AImpl_AddRef(LPDIRECTINPUT8A iface)
 518 {
 519     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 520     return IDirectInputAImpl_AddRef( (IDirectInput7A *)This );
 521 }
 522
 523 static ULONG WINAPI IDirectInput8WImpl_AddRef(LPDIRECTINPUT8W iface)
 524 {
 525     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 526     return IDirectInputAImpl_AddRef( (IDirectInput7A *)This );
 527 }
 528
 529 static HRESULT WINAPI IDirectInput8AImpl_QueryInterface(LPDIRECTINPUT8A iface, REFIID riid, LPVOID *ppobj)
 530 {
 531     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 532     return IDirectInputAImpl_QueryInterface( (IDirectInput7A *)This, riid, ppobj );
 533 }
 534
 535 static HRESULT WINAPI IDirectInput8WImpl_QueryInterface(LPDIRECTINPUT8W iface, REFIID riid, LPVOID *ppobj)
 536 {
 537     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 538     return IDirectInputAImpl_QueryInterface( (IDirectInput7A *)This, riid, ppobj );
 539 }
 540
 541 static ULONG WINAPI IDirectInput8AImpl_Release(LPDIRECTINPUT8A iface)
 542 {
 543     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 544     return IDirectInputAImpl_Release( (IDirectInput7A *)This );
 545 }
 546
 547 static ULONG WINAPI IDirectInput8WImpl_Release(LPDIRECTINPUT8W iface)
 548 {
 549     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 550     return IDirectInputAImpl_Release( (IDirectInput7A *)This );
 551 }
 552
 553 static HRESULT WINAPI IDirectInput8AImpl_CreateDevice(LPDIRECTINPUT8A iface, REFGUID rguid,
 554                                                       LPDIRECTINPUTDEVICE8A* pdev, LPUNKNOWN punk)
 555 {
 556     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 557     return IDirectInput7AImpl_CreateDeviceEx( (IDirectInput7A *)This, rguid, NULL, (LPVOID*)pdev, punk );
 558 }
 559
 560 static HRESULT WINAPI IDirectInput8WImpl_CreateDevice(LPDIRECTINPUT8W iface, REFGUID rguid,
 561                                                       LPDIRECTINPUTDEVICE8W* pdev, LPUNKNOWN punk)
 562 {
 563     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 564     return IDirectInput7WImpl_CreateDeviceEx( IDirectInput7W_from_impl( This ), rguid, NULL, (LPVOID*)pdev, punk );
 565 }
 566
 567 static HRESULT WINAPI IDirectInput8AImpl_EnumDevices(LPDIRECTINPUT8A iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKA lpCallback,
 568                                                      LPVOID pvRef, DWORD dwFlags)
 569 {
 570     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 571     return IDirectInputAImpl_EnumDevices( (IDirectInput7A *)This, dwDevType, lpCallback, pvRef, dwFlags );
 572 }
 573
 574 static HRESULT WINAPI IDirectInput8WImpl_EnumDevices(LPDIRECTINPUT8W iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback,
 575                                                      LPVOID pvRef, DWORD dwFlags)
 576 {
 577     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 578     return IDirectInputWImpl_EnumDevices( IDirectInput7W_from_impl( This ), dwDevType, lpCallback, pvRef, dwFlags );
 579 }
 580
 581 static HRESULT WINAPI IDirectInput8AImpl_GetDeviceStatus(LPDIRECTINPUT8A iface, REFGUID rguid)
 582 {
 583     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 584     return IDirectInputAImpl_GetDeviceStatus( (IDirectInput7A *)This, rguid );
 585 }
 586
 587 static HRESULT WINAPI IDirectInput8WImpl_GetDeviceStatus(LPDIRECTINPUT8W iface, REFGUID rguid)
 588 {
 589     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 590     return IDirectInputAImpl_GetDeviceStatus( (IDirectInput7A *)This, rguid );
 591 }
 592
 593 static HRESULT WINAPI IDirectInput8AImpl_RunControlPanel(LPDIRECTINPUT8A iface, HWND hwndOwner, DWORD dwFlags)
 594 {
 595     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 596     return IDirectInputAImpl_RunControlPanel( (IDirectInput7A *)This, hwndOwner, dwFlags );
 597 }
 598
 599 static HRESULT WINAPI IDirectInput8WImpl_RunControlPanel(LPDIRECTINPUT8W iface, HWND hwndOwner, DWORD dwFlags)
 600 {
 601     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 602     return IDirectInputAImpl_RunControlPanel( (IDirectInput7A *)This, hwndOwner, dwFlags );
 603 }
 604
 605 static HRESULT WINAPI IDirectInput8AImpl_Initialize(LPDIRECTINPUT8A iface, HINSTANCE hinst, DWORD x)
 606 {
 607     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 608     return IDirectInputAImpl_Initialize( (IDirectInput7A *)This, hinst, x );
 609 }
 610
 611 static HRESULT WINAPI IDirectInput8WImpl_Initialize(LPDIRECTINPUT8W iface, HINSTANCE hinst, DWORD x)
 612 {
 613     IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 614     return IDirectInputAImpl_Initialize( (IDirectInput7A *)This, hinst, x );
 615 }
 616
 617 static HRESULT WINAPI IDirectInput8AImpl_FindDevice(LPDIRECTINPUT8A iface, REFGUID rguid, LPCSTR pszName, LPGUID pguidInstance)
 618 {
 619     IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 620     return IDirectInput2AImpl_FindDevice( (IDirectInput7A *)This, rguid, pszName, pguidInstance );
 621 }
 622
 623 static HRESULT WINAPI IDirectInput8WImpl_FindDevice(LPDIRECTINPUT8W iface, REFGUID rguid, LPCWSTR pszName, LPGUID pguidInstance)
 624 {
 625     IDirectInput7W *This = IDirectInput7W_from_impl( impl_from_IDirectInput8W( iface ) );
 626     return IDirectInput2WImpl_FindDevice( This, rguid, pszName, pguidInstance );
 627 }
 628
 629 static HRESULT WINAPI IDirectInput8AImpl_EnumDevicesBySemantics(
 630       LPDIRECTINPUT8A iface, LPCSTR ptszUserName, LPDIACTIONFORMATA lpdiActionFormat,
 631       LPDIENUMDEVICESBYSEMANTICSCBA lpCallback,
 632       LPVOID pvRef, DWORD dwFlags
 633 )
 634 {
 635       IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 636
 637       FIXME("(this=%p,%s,%p,%p,%p,%04x): stub\n", This, ptszUserName, lpdiActionFormat,
 638             lpCallback, pvRef, dwFlags);
 639       return 0;
 640 }
 641
 642 static HRESULT WINAPI IDirectInput8WImpl_EnumDevicesBySemantics(
 643       LPDIRECTINPUT8W iface, LPCWSTR ptszUserName, LPDIACTIONFORMATW lpdiActionFormat,
 644       LPDIENUMDEVICESBYSEMANTICSCBW lpCallback,
 645       LPVOID pvRef, DWORD dwFlags
 646 )
 647 {
 648       IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 649
 650       FIXME("(this=%p,%s,%p,%p,%p,%04x): stub\n", This, debugstr_w(ptszUserName), lpdiActionFormat,
 651             lpCallback, pvRef, dwFlags);
 652       return 0;
 653 }
 654
 655 static HRESULT WINAPI IDirectInput8AImpl_ConfigureDevices(
 656       LPDIRECTINPUT8A iface, LPDICONFIGUREDEVICESCALLBACK lpdiCallback,
 657       LPDICONFIGUREDEVICESPARAMSA lpdiCDParams, DWORD dwFlags, LPVOID pvRefData
 658 )
 659 {
 660       IDirectInputImpl *This = impl_from_IDirectInput8A( iface );
 661
 662       FIXME("(this=%p,%p,%p,%04x,%p): stub\n", This, lpdiCallback, lpdiCDParams,
 663             dwFlags, pvRefData);
 664       return 0;
 665 }
 666
 667 static HRESULT WINAPI IDirectInput8WImpl_ConfigureDevices(
 668       LPDIRECTINPUT8W iface, LPDICONFIGUREDEVICESCALLBACK lpdiCallback,
 669       LPDICONFIGUREDEVICESPARAMSW lpdiCDParams, DWORD dwFlags, LPVOID pvRefData
 670 )
 671 {
 672       IDirectInputImpl *This = impl_from_IDirectInput8W( iface );
 673
 674       FIXME("(this=%p,%p,%p,%04x,%p): stub\n", This, lpdiCallback, lpdiCDParams,
 675             dwFlags, pvRefData);
 676       return 0;
 677 }
 678
 679 static const IDirectInput7AVtbl ddi7avt = {
 680     IDirectInputAImpl_QueryInterface,
 681     IDirectInputAImpl_AddRef,
 682     IDirectInputAImpl_Release,
 683     IDirectInputAImpl_CreateDevice,
 684     IDirectInputAImpl_EnumDevices,
 685     IDirectInputAImpl_GetDeviceStatus,
 686     IDirectInputAImpl_RunControlPanel,
 687     IDirectInputAImpl_Initialize,
 688     IDirectInput2AImpl_FindDevice,
 689     IDirectInput7AImpl_CreateDeviceEx
 690 };
 691
 692 static const IDirectInput7WVtbl ddi7wvt = {
 693     IDirectInputWImpl_QueryInterface,
 694     IDirectInputWImpl_AddRef,
 695     IDirectInputWImpl_Release,
 696     IDirectInputWImpl_CreateDevice,
 697     IDirectInputWImpl_EnumDevices,
 698     IDirectInputWImpl_GetDeviceStatus,
 699     IDirectInputWImpl_RunControlPanel,
 700     IDirectInputWImpl_Initialize,
 701     IDirectInput2WImpl_FindDevice,
 702     IDirectInput7WImpl_CreateDeviceEx
 703 };
 704
 705 static const IDirectInput8AVtbl ddi8avt = {
 706     IDirectInput8AImpl_QueryInterface,
 707     IDirectInput8AImpl_AddRef,
 708     IDirectInput8AImpl_Release,
 709     IDirectInput8AImpl_CreateDevice,
 710     IDirectInput8AImpl_EnumDevices,
 711     IDirectInput8AImpl_GetDeviceStatus,
 712     IDirectInput8AImpl_RunControlPanel,
 713     IDirectInput8AImpl_Initialize,
 714     IDirectInput8AImpl_FindDevice,
 715     IDirectInput8AImpl_EnumDevicesBySemantics,
 716     IDirectInput8AImpl_ConfigureDevices
 717 };
 718
 719 static const IDirectInput8WVtbl ddi8wvt = {
 720     IDirectInput8WImpl_QueryInterface,
 721     IDirectInput8WImpl_AddRef,
 722     IDirectInput8WImpl_Release,
 723     IDirectInput8WImpl_CreateDevice,
 724     IDirectInput8WImpl_EnumDevices,
 725     IDirectInput8WImpl_GetDeviceStatus,
 726     IDirectInput8WImpl_RunControlPanel,
 727     IDirectInput8WImpl_Initialize,
 728     IDirectInput8WImpl_FindDevice,
 729     IDirectInput8WImpl_EnumDevicesBySemantics,
 730     IDirectInput8WImpl_ConfigureDevices
 731 };
 732
 733 /*******************************************************************************
 734  * DirectInput ClassFactory
 735  */
 736 typedef struct
 737 {
 738     /* IUnknown fields */
 739     const IClassFactoryVtbl    *lpVtbl;
 740     LONG                        ref;
 741 } IClassFactoryImpl;
 742
 743 static HRESULT WINAPI DICF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
 744         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 745
 746         FIXME("(%p)->(%s,%p),stub!\n",This,debugstr_guid(riid),ppobj);
 747         return E_NOINTERFACE;
 748 }
 749
 750 static ULONG WINAPI DICF_AddRef(LPCLASSFACTORY iface) {
 751         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 752         return InterlockedIncrement(&(This->ref));
 753 }
 754
 755 static ULONG WINAPI DICF_Release(LPCLASSFACTORY iface) {
 756         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 757         /* static class, won't be  freed */
 758         return InterlockedDecrement(&(This->ref));
 759 }
 760
 761 static HRESULT WINAPI DICF_CreateInstance(
 762         LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj
 763 ) {
 764         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 765
 766         TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 767         if ( IsEqualGUID( &IID_IDirectInputA, riid ) ||
 768              IsEqualGUID( &IID_IDirectInputW, riid ) ||
 769              IsEqualGUID( &IID_IDirectInput2A, riid ) ||
 770              IsEqualGUID( &IID_IDirectInput2W, riid ) ||
 771              IsEqualGUID( &IID_IDirectInput7A, riid ) ||
 772              IsEqualGUID( &IID_IDirectInput7W, riid ) ||
 773              IsEqualGUID( &IID_IDirectInput8A, riid ) ||
 774              IsEqualGUID( &IID_IDirectInput8W, riid ) ) {
 775                 /* FIXME: reuse already created dinput if present? */
 776                 return DirectInputCreateEx(0,0,riid,ppobj,pOuter);
 777         }
 778
 779         FIXME("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);
 780         return E_NOINTERFACE;
 781 }
 782
 783 static HRESULT WINAPI DICF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 784         IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 785         FIXME("(%p)->(%d),stub!\n",This,dolock);
 786         return S_OK;
 787 }
 788
 789 static const IClassFactoryVtbl DICF_Vtbl = {
 790         DICF_QueryInterface,
 791         DICF_AddRef,
 792         DICF_Release,
 793         DICF_CreateInstance,
 794         DICF_LockServer
 795 };
 796 static IClassFactoryImpl DINPUT_CF = {&DICF_Vtbl, 1 };
 797
 798 /***********************************************************************
 799  *              DllCanUnloadNow (DINPUT.@)
 800  */
 801 HRESULT WINAPI DllCanUnloadNow(void)
 802 {
 803     FIXME("(void): stub\n");
 804
 805     return S_FALSE;
 806 }
 807
 808 /***********************************************************************
 809  *              DllGetClassObject (DINPUT.@)
 810  */
 811 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 812 {
 813     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 814     if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
 815         *ppv = (LPVOID)&DINPUT_CF;
 816         IClassFactory_AddRef((IClassFactory*)*ppv);
 817     return S_OK;
 818     }
 819
 820     FIXME("(%s,%s,%p): no interface found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 821     return CLASS_E_CLASSNOTAVAILABLE;
 822 }
 823
 824 /******************************************************************************
 825  *      DInput hook thread
 826  */
 827
 828 static LRESULT CALLBACK LL_hook_proc( int code, WPARAM wparam, LPARAM lparam )
 829 {
 830     IDirectInputImpl *dinput;
 831
 832     if (code != HC_ACTION) return CallNextHookEx( 0, code, wparam, lparam );
 833
 834     EnterCriticalSection( &dinput_hook_crit );
 835     LIST_FOR_EACH_ENTRY( dinput, &direct_input_list, IDirectInputImpl, entry )
 836     {
 837         IDirectInputDevice2AImpl *dev;
 838
 839         EnterCriticalSection( &dinput->crit );
 840         LIST_FOR_EACH_ENTRY( dev, &dinput->devices_list, IDirectInputDevice2AImpl, entry )
 841             if (dev->acquired && dev->event_proc)
 842             {
 843                 TRACE("calling %p->%p (%lx %lx)\n", dev, dev->event_proc, wparam, lparam);
 844                 dev->event_proc( (LPDIRECTINPUTDEVICE8A)dev, wparam, lparam );
 845             }
 846         LeaveCriticalSection( &dinput->crit );
 847     }
 848     LeaveCriticalSection( &dinput_hook_crit );
 849
 850     return CallNextHookEx( 0, code, wparam, lparam );
 851 }
 852
 853 static LRESULT CALLBACK callwndproc_proc( int code, WPARAM wparam, LPARAM lparam )
 854 {
 855     CWPSTRUCT *msg = (CWPSTRUCT *)lparam;
 856     IDirectInputImpl *dinput;
 857     HWND foreground;
 858
 859     if (code != HC_ACTION || (msg->message != WM_KILLFOCUS &&
 860         msg->message != WM_ACTIVATEAPP && msg->message != WM_ACTIVATE))
 861         return CallNextHookEx( 0, code, wparam, lparam );
 862
 863     foreground = GetForegroundWindow();
 864
 865     EnterCriticalSection( &dinput_hook_crit );
 866
 867     LIST_FOR_EACH_ENTRY( dinput, &direct_input_list, IDirectInputImpl, entry )
 868     {
 869         IDirectInputDevice2AImpl *dev;
 870
 871         EnterCriticalSection( &dinput->crit );
 872         LIST_FOR_EACH_ENTRY( dev, &dinput->devices_list, IDirectInputDevice2AImpl, entry )
 873         {
 874             if (!dev->acquired) continue;
 875
 876             if (msg->hwnd == dev->win && msg->hwnd != foreground)
 877             {
 878                 TRACE( "%p window is not foreground - unacquiring %p\n", dev->win, dev );
 879                 IDirectInputDevice_Unacquire( (LPDIRECTINPUTDEVICE8A)dev );
 880             }
 881         }
 882         LeaveCriticalSection( &dinput->crit );
 883     }
 884     LeaveCriticalSection( &dinput_hook_crit );
 885
 886     return CallNextHookEx( 0, code, wparam, lparam );
 887 }
 888
 889 static DWORD WINAPI hook_thread_proc(void *param)
 890 {
 891     static HHOOK kbd_hook, mouse_hook;
 892     MSG msg;
 893
 894     /* Force creation of the message queue */
 895     PeekMessageW( &msg, 0, 0, 0, PM_NOREMOVE );
 896     SetEvent(*(LPHANDLE)param);
 897
 898     while (GetMessageW( &msg, 0, 0, 0 ))
 899     {
 900         UINT kbd_cnt = 0, mice_cnt = 0;
 901
 902         if (msg.message == WM_USER+0x10)
 903         {
 904             IDirectInputImpl *dinput;
 905
 906             TRACE( "Processing hook change notification lp:%ld\n", msg.lParam );
 907
 908             if (!msg.wParam && !msg.lParam)
 909             {
 910                 if (kbd_hook) UnhookWindowsHookEx( kbd_hook );
 911                 if (mouse_hook) UnhookWindowsHookEx( mouse_hook );
 912                 kbd_hook = mouse_hook = NULL;
 913                 break;
 914             }
 915
 916             EnterCriticalSection( &dinput_hook_crit );
 917
 918             /* Count acquired keyboards and mice*/
 919             LIST_FOR_EACH_ENTRY( dinput, &direct_input_list, IDirectInputImpl, entry )
 920             {
 921                 IDirectInputDevice2AImpl *dev;
 922
 923                 EnterCriticalSection( &dinput->crit );
 924                 LIST_FOR_EACH_ENTRY( dev, &dinput->devices_list, IDirectInputDevice2AImpl, entry )
 925                 {
 926                     if (!dev->acquired || !dev->event_proc) continue;
 927
 928                     if (IsEqualGUID( &dev->guid, &GUID_SysKeyboard ) ||
 929                         IsEqualGUID( &dev->guid, &DInput_Wine_Keyboard_GUID ))
 930                         kbd_cnt++;
 931                     else
 932                         if (IsEqualGUID( &dev->guid, &GUID_SysMouse ) ||
 933                             IsEqualGUID( &dev->guid, &DInput_Wine_Mouse_GUID ))
 934                             mice_cnt++;
 935                 }
 936                 LeaveCriticalSection( &dinput->crit );
 937             }
 938             LeaveCriticalSection( &dinput_hook_crit );
 939
 940             if (kbd_cnt && !kbd_hook)
 941                 kbd_hook = SetWindowsHookExW( WH_KEYBOARD_LL, LL_hook_proc, DINPUT_instance, 0 );
 942             else if (!kbd_cnt && kbd_hook)
 943             {
 944                 UnhookWindowsHookEx( kbd_hook );
 945                 kbd_hook = NULL;
 946             }
 947
 948             if (mice_cnt && !mouse_hook)
 949                 mouse_hook = SetWindowsHookExW( WH_MOUSE_LL, LL_hook_proc, DINPUT_instance, 0 );
 950             else if (!mice_cnt && mouse_hook)
 951             {
 952                 UnhookWindowsHookEx( mouse_hook );
 953                 mouse_hook = NULL;
 954             }
 955         }
 956         TranslateMessage(&msg);
 957         DispatchMessageW(&msg);
 958     }
 959
 960     return 0;
 961 }
 962
 963 static DWORD hook_thread_id;
 964
 965 static CRITICAL_SECTION_DEBUG dinput_critsect_debug =
 966 {
 967     0, 0, &dinput_hook_crit,
 968     { &dinput_critsect_debug.ProcessLocksList, &dinput_critsect_debug.ProcessLocksList },
 969       0, 0, { (DWORD_PTR)(__FILE__ ": dinput_hook_crit") }
 970 };
 971 static CRITICAL_SECTION dinput_hook_crit = { &dinput_critsect_debug, -1, 0, 0, 0, 0 };
 972
 973 static BOOL check_hook_thread(void)
 974 {
 975     static HANDLE hook_thread;
 976
 977     EnterCriticalSection(&dinput_hook_crit);
 978
 979     TRACE("IDirectInputs left: %d\n", list_count(&direct_input_list));
 980     if (!list_empty(&direct_input_list) && !hook_thread)
 981     {
 982         HANDLE event;
 983
 984         event = CreateEventW(NULL, FALSE, FALSE, NULL);
 985         hook_thread = CreateThread(NULL, 0, hook_thread_proc, &event, 0, &hook_thread_id);
 986         if (event && hook_thread)
 987         {
 988             HANDLE handles[2];
 989             handles[0] = event;
 990             handles[1] = hook_thread;
 991             WaitForMultipleObjects(2, handles, FALSE, INFINITE);
 992         }
 993         LeaveCriticalSection(&dinput_hook_crit);
 994         CloseHandle(event);
 995     }
 996     else if (list_empty(&direct_input_list) && hook_thread)
 997     {
 998         DWORD tid = hook_thread_id;
 999
1000         hook_thread_id = 0;
1001         PostThreadMessageW(tid, WM_USER+0x10, 0, 0);
1002         LeaveCriticalSection(&dinput_hook_crit);
1003
1004         /* wait for hook thread to exit */
1005         WaitForSingleObject(hook_thread, INFINITE);
1006         CloseHandle(hook_thread);
1007         hook_thread = NULL;
1008     }
1009     else
1010         LeaveCriticalSection(&dinput_hook_crit);
1011
1012     return hook_thread_id != 0;
1013 }
1014
1015 void check_dinput_hooks(LPDIRECTINPUTDEVICE8A iface)
1016 {
1017     static HHOOK callwndproc_hook;
1018     static ULONG foreground_cnt;
1019     IDirectInputDevice2AImpl *dev = (IDirectInputDevice2AImpl *)iface;
1020
1021     EnterCriticalSection(&dinput_hook_crit);
1022
1023     if (dev->dwCoopLevel & DISCL_FOREGROUND)
1024     {
1025         if (dev->acquired)
1026             foreground_cnt++;
1027         else
1028             foreground_cnt--;
1029     }
1030
1031     if (foreground_cnt && !callwndproc_hook)
1032         callwndproc_hook = SetWindowsHookExW( WH_CALLWNDPROC, callwndproc_proc,
1033                                               DINPUT_instance, GetCurrentThreadId() );
1034     else if (!foreground_cnt && callwndproc_hook)
1035     {
1036         UnhookWindowsHookEx( callwndproc_hook );
1037         callwndproc_hook = NULL;
1038     }
1039
1040     PostThreadMessageW( hook_thread_id, WM_USER+0x10, 1, 0 );
1041
1042     LeaveCriticalSection(&dinput_hook_crit);
1043 }