git.sesse.net Git - vlc/blob - activex/vlccontrol.cpp

   1 /*****************************************************************************
   2  * vlccontrol.cpp: ActiveX control for VLC
   3  *****************************************************************************
   4  * Copyright (C) 2005 the VideoLAN team
   5  *
   6  * Authors: Damien Fouilleul <Damien.Fouilleul@laposte.net>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  21  *****************************************************************************/
  22
  23 #include "plugin.h"
  24 #include "vlccontrol.h"
  25
  26 #include "utils.h"
  27
  28 using namespace std;
  29
  30 VLCControl::~VLCControl()
  31 {
  32     if( _p_typeinfo )
  33         _p_typeinfo->Release();
  34 };
  35
  36 HRESULT VLCControl::getTypeInfo(void)
  37 {
  38     HRESULT hr = NOERROR;
  39     if( NULL == _p_typeinfo )
  40     {
  41         ITypeLib *p_typelib;
  42
  43         HRESULT hr = _p_instance->getTypeLib(LOCALE_USER_DEFAULT, &p_typelib);
  44         if( SUCCEEDED(hr) )
  45         {
  46             hr = p_typelib->GetTypeInfoOfGuid(IID_IVLCControl, &_p_typeinfo);
  47             if( FAILED(hr) )
  48             {
  49                 _p_typeinfo = NULL;
  50             }
  51             p_typelib->Release();
  52         }
  53     }
  54     return hr;
  55 };
  56
  57 STDMETHODIMP VLCControl::GetTypeInfoCount(UINT* pctInfo)
  58 {
  59     if( NULL == pctInfo )
  60         return E_INVALIDARG;
  61
  62     if( SUCCEEDED(getTypeInfo()) )
  63         *pctInfo = 1;
  64     else
  65         *pctInfo = 0;
  66
  67     return NOERROR;
  68 };
  69
  70 STDMETHODIMP VLCControl::GetTypeInfo(UINT iTInfo, LCID lcid, LPTYPEINFO* ppTInfo)
  71 {
  72     if( NULL == ppTInfo )
  73         return E_INVALIDARG;
  74
  75     if( SUCCEEDED(getTypeInfo()) )
  76     {
  77         _p_typeinfo->AddRef();
  78         *ppTInfo = _p_typeinfo;
  79         return NO_ERROR;
  80     }
  81     *ppTInfo = NULL;
  82     return E_NOTIMPL;
  83 };
  84
  85 STDMETHODIMP VLCControl::GetIDsOfNames(REFIID riid, LPOLESTR* rgszNames,
  86         UINT cNames, LCID lcid, DISPID* rgDispID)
  87 {
  88     if( SUCCEEDED(getTypeInfo()) )
  89     {
  90         return DispGetIDsOfNames(_p_typeinfo, rgszNames, cNames, rgDispID);
  91     }
  92     return E_NOTIMPL;
  93 };
  94
  95 STDMETHODIMP VLCControl::Invoke(DISPID dispIdMember, REFIID riid,
  96         LCID lcid, WORD wFlags, DISPPARAMS* pDispParams,
  97         VARIANT* pVarResult, EXCEPINFO* pExcepInfo, UINT* puArgErr)
  98 {
  99     if( SUCCEEDED(getTypeInfo()) )
 100     {
 101         return DispInvoke(this, _p_typeinfo, dispIdMember, wFlags, pDispParams,
 102                 pVarResult, pExcepInfo, puArgErr);
 103     }
 104     return E_NOTIMPL;
 105 };
 106
 107 STDMETHODIMP VLCControl::get_Visible(VARIANT_BOOL *isVisible)
 108 {
 109     if( NULL == isVisible )
 110         return E_POINTER;
 111
 112     *isVisible = _p_instance->getVisible() ? VARIANT_TRUE : VARIANT_FALSE;
 113
 114     return NOERROR;
 115 };
 116
 117 STDMETHODIMP VLCControl::put_Visible(VARIANT_BOOL isVisible)
 118 {
 119     _p_instance->setVisible(isVisible != VARIANT_FALSE);
 120
 121     return NOERROR;
 122 };
 123
 124 STDMETHODIMP VLCControl::play(void)
 125 {
 126     int i_vlc = _p_instance->getVLCObject();
 127     if( i_vlc )
 128     {
 129         VLC_Play(i_vlc);
 130         _p_instance->fireOnPlayEvent();
 131         return NOERROR;
 132     }
 133     return E_UNEXPECTED;
 134 };
 135
 136 STDMETHODIMP VLCControl::pause(void)
 137 {
 138     int i_vlc = _p_instance->getVLCObject();
 139     if( i_vlc )
 140     {
 141         VLC_Pause(i_vlc);
 142         _p_instance->fireOnPauseEvent();
 143         return NOERROR;
 144     }
 145     return E_UNEXPECTED;
 146 };
 147
 148 STDMETHODIMP VLCControl::stop(void)
 149 {
 150     int i_vlc = _p_instance->getVLCObject();
 151     if( i_vlc )
 152     {
 153         VLC_Stop(i_vlc);
 154         _p_instance->fireOnStopEvent();
 155         return NOERROR;
 156     }
 157     return E_UNEXPECTED;
 158 };
 159
 160 STDMETHODIMP VLCControl::get_Playing(VARIANT_BOOL *isPlaying)
 161 {
 162     if( NULL == isPlaying )
 163         return E_POINTER;
 164
 165     int i_vlc = _p_instance->getVLCObject();
 166     if( i_vlc )
 167     {
 168         *isPlaying = VLC_IsPlaying(i_vlc) ? VARIANT_TRUE : VARIANT_FALSE;
 169         return NOERROR;
 170     }
 171     *isPlaying = VARIANT_FALSE;
 172     return E_UNEXPECTED;
 173 };
 174
 175 STDMETHODIMP VLCControl::get_Position(float *position)
 176 {
 177     if( NULL == position )
 178         return E_POINTER;
 179
 180     int i_vlc = _p_instance->getVLCObject();
 181     if( i_vlc )
 182     {
 183         *position = VLC_PositionGet(i_vlc);
 184         return NOERROR;
 185     }
 186     *position = 0.0f;
 187     return E_UNEXPECTED;
 188 };
 189
 190 STDMETHODIMP VLCControl::put_Position(float position)
 191 {
 192     int i_vlc = _p_instance->getVLCObject();
 193     if( i_vlc )
 194     {
 195         VLC_PositionSet(i_vlc, position);
 196         return NOERROR;
 197     }
 198     return E_UNEXPECTED;
 199 };
 200
 201 STDMETHODIMP VLCControl::get_Time(int *seconds)
 202 {
 203     if( NULL == seconds )
 204         return E_POINTER;
 205
 206     int i_vlc = _p_instance->getVLCObject();
 207     if( i_vlc )
 208     {
 209         *seconds = VLC_TimeGet(i_vlc);
 210         return NOERROR;
 211     }
 212     *seconds = 0;
 213     return E_UNEXPECTED;
 214 };
 215
 216 STDMETHODIMP VLCControl::put_Time(int seconds)
 217 {
 218     int i_vlc = _p_instance->getVLCObject();
 219     if( i_vlc )
 220     {
 221         VLC_TimeSet(i_vlc, seconds, VLC_FALSE);
 222         return NOERROR;
 223     }
 224     return E_UNEXPECTED;
 225 };
 226
 227 STDMETHODIMP VLCControl::shuttle(int seconds)
 228 {
 229     int i_vlc = _p_instance->getVLCObject();
 230     if( i_vlc )
 231     {
 232         VLC_TimeSet(i_vlc, seconds, VLC_TRUE);
 233         return NOERROR;
 234     }
 235     return E_UNEXPECTED;
 236 };
 237
 238 STDMETHODIMP VLCControl::fullscreen(void)
 239 {
 240     int i_vlc = _p_instance->getVLCObject();
 241     if( i_vlc )
 242     {
 243         VLC_FullScreen(i_vlc);
 244         return NOERROR;
 245     }
 246     return E_UNEXPECTED;
 247 };
 248
 249 STDMETHODIMP VLCControl::get_Length(int *seconds)
 250 {
 251     if( NULL == seconds )
 252         return E_POINTER;
 253
 254     int i_vlc = _p_instance->getVLCObject();
 255     if( i_vlc )
 256     {
 257         *seconds = VLC_LengthGet(i_vlc);
 258         return NOERROR;
 259     }
 260     *seconds = 0;
 261     return E_UNEXPECTED;
 262 };
 263
 264 STDMETHODIMP VLCControl::playFaster(void)
 265 {
 266     int i_vlc = _p_instance->getVLCObject();
 267     if( i_vlc )
 268     {
 269         VLC_SpeedFaster(i_vlc);
 270         return NOERROR;
 271     }
 272     return E_UNEXPECTED;
 273 };
 274
 275 STDMETHODIMP VLCControl::playSlower(void)
 276 {
 277     int i_vlc = _p_instance->getVLCObject();
 278     if( i_vlc )
 279     {
 280         VLC_SpeedSlower(i_vlc);
 281         return NOERROR;
 282     }
 283     return E_UNEXPECTED;
 284 };
 285
 286 STDMETHODIMP VLCControl::get_Volume(int *volume)
 287 {
 288     if( NULL == volume )
 289         return E_POINTER;
 290
 291     int i_vlc = _p_instance->getVLCObject();
 292     if( i_vlc )
 293     {
 294         *volume  = VLC_VolumeGet(i_vlc);
 295         return NOERROR;
 296     }
 297     *volume = 0;
 298     return E_UNEXPECTED;
 299 };
 300
 301 STDMETHODIMP VLCControl::put_Volume(int volume)
 302 {
 303     int i_vlc = _p_instance->getVLCObject();
 304     if( i_vlc )
 305     {
 306         VLC_VolumeSet(i_vlc, volume);
 307         return NOERROR;
 308     }
 309     return E_UNEXPECTED;
 310 };
 311
 312 STDMETHODIMP VLCControl::toggleMute(void)
 313 {
 314     int i_vlc = _p_instance->getVLCObject();
 315     if( i_vlc )
 316     {
 317         VLC_VolumeMute(i_vlc);
 318         return NOERROR;
 319     }
 320     return E_UNEXPECTED;
 321 };
 322
 323 STDMETHODIMP VLCControl::setVariable(BSTR name, VARIANT value)
 324 {
 325     if( 0 == SysStringLen(name) )
 326         return E_INVALIDARG;
 327
 328     int i_vlc = _p_instance->getVLCObject();
 329     if( i_vlc )
 330     {
 331         int codePage = _p_instance->getCodePage();
 332         char *psz_varname = CStrFromBSTR(codePage, name);
 333         if( NULL == psz_varname )
 334             return E_OUTOFMEMORY;
 335
 336         HRESULT hr = E_INVALIDARG;
 337         int i_type;
 338         vlc_value_t val;
 339
 340         if( VLC_SUCCESS == VLC_VariableType(i_vlc, psz_varname, &i_type) )
 341         {
 342             VARIANT arg;
 343             VariantInit(&arg);
 344
 345             switch( i_type )
 346             {
 347                 case VLC_VAR_BOOL:
 348                     hr = VariantChangeType(&value, &arg, 0, VT_BOOL);
 349                     if( SUCCEEDED(hr) )
 350                         val.b_bool = (VARIANT_TRUE == V_BOOL(&arg)) ? VLC_TRUE : VLC_FALSE;
 351                     break;
 352
 353                 case VLC_VAR_INTEGER:
 354                 case VLC_VAR_HOTKEY:
 355                     hr = VariantChangeType(&value, &arg, 0, VT_I4);
 356                     if( SUCCEEDED(hr) )
 357                         val.i_int = V_I4(&arg);
 358                     break;
 359
 360                 case VLC_VAR_FLOAT:
 361                     hr = VariantChangeType(&value, &arg, 0, VT_R4);
 362                     if( SUCCEEDED(hr) )
 363                         val.f_float = V_R4(&arg);
 364                     break;
 365
 366                 case VLC_VAR_STRING:
 367                 case VLC_VAR_MODULE:
 368                 case VLC_VAR_FILE:
 369                 case VLC_VAR_DIRECTORY:
 370                 case VLC_VAR_VARIABLE:
 371                     hr = VariantChangeType(&value, &arg, 0, VT_BSTR);
 372                     if( SUCCEEDED(hr) )
 373                     {
 374                         val.psz_string = CStrFromBSTR(codePage, V_BSTR(&arg));
 375                         VariantClear(&arg);
 376                     }
 377                     break;
 378
 379                 case VLC_VAR_TIME:
 380                     // use a double value to represent time (base is expressed in seconds)
 381                     hr = VariantChangeType(&value, &arg, 0, VT_R8);
 382                     if( SUCCEEDED(hr) )
 383                         val.i_time = (signed __int64)(V_R8(&arg)*1000000.0);
 384                     break;
 385
 386                 default:
 387                     hr = DISP_E_TYPEMISMATCH;
 388             }
 389         }
 390         else {
 391             // no defined type, defaults to VARIANT type
 392             hr = NO_ERROR;
 393             switch( V_VT(&value) )
 394             {
 395                 case VT_BOOL:
 396                     val.b_bool = (VARIANT_TRUE == V_BOOL(&value)) ? VLC_TRUE : VLC_FALSE;
 397                     i_type = VLC_VAR_BOOL;
 398                     break;
 399                 case VT_I4:
 400                     val.i_int = V_I4(&value);
 401                     i_type = VLC_VAR_INTEGER;
 402                     break;
 403                 case VT_R4:
 404                     val.f_float = V_R4(&value);
 405                     i_type = VLC_VAR_FLOAT;
 406                     break;
 407                 case VT_BSTR:
 408                     val.psz_string = CStrFromBSTR(codePage, V_BSTR(&value));
 409                     i_type = VLC_VAR_STRING;
 410                     break;
 411                 case VT_R8:
 412                     // use a double value to represent time (base is expressed in seconds)
 413                     val.i_time = (signed __int64)(V_R8(&value)*1000000.0);
 414                     i_type = VLC_VAR_TIME;
 415                     break;
 416                 default:
 417                     hr = DISP_E_TYPEMISMATCH;
 418             }
 419         }
 420         if( SUCCEEDED(hr) )
 421         {
 422             hr = (VLC_SUCCESS == VLC_VariableSet(i_vlc, psz_varname, val)) ? NOERROR : E_FAIL;
 423
 424             if( (VLC_VAR_STRING == i_type) && (NULL != val.psz_string) )
 425                 CoTaskMemFree(val.psz_string);
 426         }
 427         CoTaskMemFree(psz_varname);
 428
 429         return hr;
 430     }
 431     return E_UNEXPECTED;
 432 };
 433
 434 STDMETHODIMP VLCControl::getVariable( BSTR name, VARIANT *value)
 435 {
 436     if( 0 == SysStringLen(name) )
 437         return E_INVALIDARG;
 438
 439     if( NULL == value )
 440         return E_POINTER;
 441
 442     int i_vlc = _p_instance->getVLCObject();
 443     if( i_vlc )
 444     {
 445         int codePage = _p_instance->getCodePage();
 446         char *psz_varname = CStrFromBSTR(codePage, name);
 447         if( NULL == psz_varname )
 448             return E_OUTOFMEMORY;
 449
 450         HRESULT hr = E_INVALIDARG;
 451
 452         vlc_value_t val;
 453         int i_type;
 454
 455         if( (VLC_SUCCESS == VLC_VariableGet(i_vlc, psz_varname, &val))
 456          && (VLC_SUCCESS == VLC_VariableType(i_vlc, psz_varname, &i_type)) )
 457         {
 458             hr = NOERROR;
 459             switch( i_type )
 460             {
 461                 case VLC_VAR_BOOL:
 462                     V_VT(value) = VT_BOOL;
 463                     V_BOOL(value) = val.b_bool ? VARIANT_TRUE : VARIANT_FALSE;
 464                     break;
 465
 466                 case VLC_VAR_INTEGER:
 467                 case VLC_VAR_HOTKEY:
 468                     V_VT(value) = VT_I4;
 469                     V_I4(value) = val.i_int;
 470                     break;
 471
 472                 case VLC_VAR_FLOAT:
 473                     V_VT(value) = VT_R4;
 474                     V_R4(value) = val.f_float;
 475                     break;
 476
 477                 case VLC_VAR_STRING:
 478                 case VLC_VAR_MODULE:
 479                 case VLC_VAR_FILE:
 480                 case VLC_VAR_DIRECTORY:
 481                 case VLC_VAR_VARIABLE:
 482                     V_VT(value) = VT_BSTR;
 483                     V_BSTR(value) = BSTRFromCStr(codePage, val.psz_string);
 484                     CoTaskMemFree(val.psz_string);
 485                     break;
 486
 487                 case VLC_VAR_TIME:
 488                     // use a double value to represent time (base is expressed in seconds)
 489                     V_VT(value) = VT_R8;
 490                     V_R8(value) = ((double)val.i_time)/1000000.0;
 491                     break;
 492
 493                 default:
 494                     hr = DISP_E_TYPEMISMATCH;
 495             }
 496         }
 497         CoTaskMemFree(psz_varname);
 498         return hr;
 499     }
 500     return E_UNEXPECTED;
 501 };
 502
 503 static void freeTargetOptions(char **cOptions, int cOptionCount)
 504 {
 505     // clean up
 506     if( NULL != cOptions )
 507     {
 508         for( int pos=0; pos<cOptionCount; ++pos )
 509         {
 510             char *cOption = cOptions[pos];
 511             if( NULL != cOption )
 512                 CoTaskMemFree(cOption);
 513             else
 514                 break;
 515         }
 516         CoTaskMemFree(cOptions);
 517     }
 518 };
 519
 520 static HRESULT createTargetOptions(int codePage, VARIANT *options, char ***cOptions, int *cOptionCount)
 521 {
 522     HRESULT hr = E_INVALIDARG;
 523     if( VT_ERROR == V_VT(options) )
 524     {
 525         if( DISP_E_PARAMNOTFOUND == V_ERROR(options) )
 526         {
 527             // optional parameter not set
 528             *cOptions = NULL;
 529             *cOptionCount = 0;
 530             return NOERROR;
 531         }
 532     }
 533     else if( (VT_EMPTY == V_VT(options)) || (VT_NULL == V_VT(options)) )
 534     {
 535         // null parameter
 536         *cOptions = NULL;
 537         *cOptionCount = 0;
 538         return NOERROR;
 539     }
 540     else if( VT_DISPATCH == V_VT(options) )
 541     {
 542         // collection parameter
 543         VARIANT colEnum;
 544         V_VT(&colEnum) = VT_UNKNOWN;
 545         hr = GetObjectProperty(V_DISPATCH(options), DISPID_NEWENUM, colEnum);
 546         if( SUCCEEDED(hr) )
 547         {
 548             IEnumVARIANT *enumVar;
 549             hr = V_UNKNOWN(&colEnum)->QueryInterface(IID_IEnumVARIANT, (LPVOID *)&enumVar);
 550             if( SUCCEEDED(hr) )
 551             {
 552                 long pos = 0;
 553                 long capacity = 16;
 554                 VARIANT option;
 555
 556                 *cOptions = (char **)CoTaskMemAlloc(capacity*sizeof(char *));
 557                 if( NULL != *cOptions )
 558                 {
 559                     ZeroMemory(*cOptions, sizeof(char *)*capacity);
 560                     while( SUCCEEDED(hr) && (S_OK == enumVar->Next(1, &option, NULL)) )
 561                     {
 562                         if( VT_BSTR == V_VT(&option) )
 563                         {
 564                             char *cOption = CStrFromBSTR(codePage, V_BSTR(&option));
 565                             (*cOptions)[pos] = cOption;
 566                             if( NULL != cOption )
 567                             {
 568                                 ++pos;
 569                                 if( pos == capacity )
 570                                 {
 571                                     char **moreOptions = (char **)CoTaskMemRealloc(*cOptions, (capacity+16)*sizeof(char *));
 572                                     if( NULL != moreOptions )
 573                                     {
 574                                         ZeroMemory(moreOptions+capacity, sizeof(char *)*16);
 575                                         capacity += 16;
 576                                         *cOptions = moreOptions;
 577                                     }
 578                                     else
 579                                         hr = E_OUTOFMEMORY;
 580                                 }
 581                             }
 582                             else
 583                                 hr = ( SysStringLen(V_BSTR(&option)) > 0 ) ?
 584                                     E_OUTOFMEMORY : E_INVALIDARG;
 585                         }
 586                         else
 587                             hr = E_INVALIDARG;
 588
 589                         VariantClear(&option);
 590                     }
 591                     *cOptionCount = pos;
 592                     if( FAILED(hr) )
 593                     {
 594                         // free already processed elements
 595                         freeTargetOptions(*cOptions, *cOptionCount);
 596                     }
 597                 }
 598                 else
 599                     hr = E_OUTOFMEMORY;
 600
 601                 enumVar->Release();
 602             }
 603         }
 604     }
 605     else if( V_ISARRAY(options) )
 606     {
 607         // array parameter
 608         SAFEARRAY *array = V_ISBYREF(options) ? *V_ARRAYREF(options) : V_ARRAY(options);
 609
 610         if( SafeArrayGetDim(array) != 1 )
 611             return E_INVALIDARG;
 612
 613         long lBound = 0;
 614         long uBound = 0;
 615         SafeArrayGetLBound(array, 1, &lBound);
 616         SafeArrayGetUBound(array, 1, &uBound);
 617
 618         // have we got any options
 619         if( uBound > lBound )
 620         {
 621             VARTYPE vType;
 622             hr = SafeArrayGetVartype(array, &vType);
 623             if( FAILED(hr) )
 624                 return hr;
 625
 626             long pos;
 627
 628             // marshall options into an array of C strings
 629             if( VT_VARIANT == vType )
 630             {
 631                 *cOptions = (char **)CoTaskMemAlloc(sizeof(char *)*(uBound-lBound));
 632                 if( NULL == *cOptions )
 633                     return E_OUTOFMEMORY;
 634
 635                 ZeroMemory(*cOptions, sizeof(char *)*(uBound-lBound));
 636                 for(pos=lBound; SUCCEEDED(hr) && (pos<uBound); ++pos )
 637                 {
 638                     VARIANT option;
 639                     hr = SafeArrayGetElement(array, &pos, &option);
 640                     if( SUCCEEDED(hr) )
 641                     {
 642                         if( VT_BSTR == V_VT(&option) )
 643                         {
 644                             char *cOption = CStrFromBSTR(codePage, V_BSTR(&option));
 645                             (*cOptions)[pos-lBound] = cOption;
 646                             if( NULL == cOption )
 647                                 hr = ( SysStringLen(V_BSTR(&option)) > 0 ) ?
 648                                     E_OUTOFMEMORY : E_INVALIDARG;
 649                         }
 650                         else
 651                             hr = E_INVALIDARG;
 652                         VariantClear(&option);
 653                     }
 654                 }
 655             }
 656             else if( VT_BSTR == vType )
 657             {
 658                 *cOptions = (char **)CoTaskMemAlloc(sizeof(char *)*(uBound-lBound));
 659                 if( NULL == *cOptions )
 660                     return E_OUTOFMEMORY;
 661
 662                 ZeroMemory(*cOptions, sizeof(char *)*(uBound-lBound));
 663                 for(pos=lBound; (pos<uBound) && SUCCEEDED(hr); ++pos )
 664                 {
 665                     BSTR option;
 666                     hr = SafeArrayGetElement(array, &pos, &option);
 667                     if( SUCCEEDED(hr) )
 668                     {
 669                         char *cOption = CStrFromBSTR(codePage, option);
 670
 671                         (*cOptions)[pos-lBound] = cOption;
 672                         if( NULL == cOption )
 673                             hr = ( SysStringLen(option) > 0 ) ?
 674                                 E_OUTOFMEMORY : E_INVALIDARG;
 675                         SysFreeString(option);
 676                     }
 677                 }
 678             }
 679             else
 680             {
 681                 // unsupported type
 682                 return E_INVALIDARG;
 683             }
 684
 685             *cOptionCount = pos-lBound;
 686             if( FAILED(hr) )
 687             {
 688                 // free already processed elements
 689                 freeTargetOptions(*cOptions, *cOptionCount);
 690             }
 691         }
 692         else
 693         {
 694             // empty array
 695             *cOptions = NULL;
 696             *cOptionCount = 0;
 697             return NOERROR;
 698         }
 699     }
 700     return hr;
 701 };
 702
 703 /*
 704 ** use VARIANT rather than a SAFEARRAY as argument type
 705 ** for compatibility with some scripting language (JScript)
 706 */
 707
 708 STDMETHODIMP VLCControl::addTarget( BSTR uri, VARIANT options, enum VLCPlaylistMode mode, int position)
 709 {
 710     if( 0 == SysStringLen(uri) )
 711         return E_INVALIDARG;
 712
 713     HRESULT hr = E_UNEXPECTED;
 714
 715     int i_vlc = _p_instance->getVLCObject();
 716     if( i_vlc )
 717     {
 718         char *cUri = CStrFromBSTR(CP_UTF8, uri);
 719         if( NULL == cUri )
 720             return E_OUTOFMEMORY;
 721
 722         int cOptionsCount;
 723         char **cOptions;
 724
 725         if( FAILED(createTargetOptions(CP_UTF8, &options, &cOptions, &cOptionsCount)) )
 726             return E_INVALIDARG;
 727
 728         if( VLC_SUCCESS <= VLC_AddTarget(i_vlc, cUri, (const char **)cOptions, cOptionsCount, mode, position) )
 729         {
 730             hr = NOERROR;
 731             if( mode & PLAYLIST_GO )
 732                 _p_instance->fireOnPlayEvent();
 733         }
 734         else
 735         {
 736             hr = E_FAIL;
 737             if( mode & PLAYLIST_GO )
 738                 _p_instance->fireOnStopEvent();
 739         }
 740
 741         freeTargetOptions(cOptions, cOptionsCount);
 742         CoTaskMemFree(cUri);
 743     }
 744     return hr;
 745 };
 746
 747 STDMETHODIMP VLCControl::get_PlaylistIndex(int *index)
 748 {
 749     if( NULL == index )
 750         return E_POINTER;
 751
 752     int i_vlc = _p_instance->getVLCObject();
 753     if( i_vlc )
 754     {
 755         *index = VLC_PlaylistIndex(i_vlc);
 756         return NOERROR;
 757     }
 758     *index = 0;
 759     return E_UNEXPECTED;
 760 };
 761
 762 STDMETHODIMP VLCControl::get_PlaylistCount(int *count)
 763 {
 764     int i_vlc = _p_instance->getVLCObject();
 765     if( i_vlc )
 766     {
 767         *count = VLC_PlaylistNumberOfItems(i_vlc);
 768         return NOERROR;
 769     }
 770     *count = 0;
 771     return E_UNEXPECTED;
 772 };
 773
 774 STDMETHODIMP VLCControl::playlistNext(void)
 775 {
 776     int i_vlc = _p_instance->getVLCObject();
 777     if( i_vlc )
 778     {
 779         VLC_PlaylistNext(i_vlc);
 780         return NOERROR;
 781     }
 782     return E_UNEXPECTED;
 783 };
 784
 785 STDMETHODIMP VLCControl::playlistPrev(void)
 786 {
 787     int i_vlc = _p_instance->getVLCObject();
 788     if( i_vlc )
 789     {
 790         VLC_PlaylistPrev(i_vlc);
 791         return NOERROR;
 792     }
 793     return E_UNEXPECTED;
 794 };
 795
 796 STDMETHODIMP VLCControl::playlistClear(void)
 797 {
 798     int i_vlc = _p_instance->getVLCObject();
 799     if( i_vlc )
 800     {
 801         VLC_PlaylistClear(i_vlc);
 802         return NOERROR;
 803     }
 804     return E_UNEXPECTED;
 805 };
 806
 807 STDMETHODIMP VLCControl::get_VersionInfo(BSTR *version)
 808 {
 809     if( NULL == version )
 810         return E_POINTER;
 811
 812     const char *versionStr = VLC_Version();
 813     if( NULL != versionStr )
 814     {
 815         *version = BSTRFromCStr(_p_instance->getCodePage(), versionStr);
 816
 817         return NULL == *version ? E_OUTOFMEMORY : NOERROR;
 818     }
 819     *version = NULL;
 820     return E_FAIL;
 821 };
 822
 823 STDMETHODIMP VLCControl::get_MRL(BSTR *mrl)
 824 {
 825     if( NULL == mrl )
 826         return E_POINTER;
 827
 828     *mrl = SysAllocStringLen(_p_instance->getMRL(),
 829                 SysStringLen(_p_instance->getMRL()));
 830     return NOERROR;
 831 };
 832
 833 STDMETHODIMP VLCControl::put_MRL(BSTR mrl)
 834 {
 835     _p_instance->setMRL(mrl);
 836
 837     return S_OK;
 838 };
 839
 840 STDMETHODIMP VLCControl::get_AutoPlay(VARIANT_BOOL *autoplay)
 841 {
 842     if( NULL == autoplay )
 843         return E_POINTER;
 844
 845     *autoplay = _p_instance->getAutoPlay() ? VARIANT_TRUE: VARIANT_FALSE;
 846     return S_OK;
 847 };
 848
 849 STDMETHODIMP VLCControl::put_AutoPlay(VARIANT_BOOL autoplay)
 850 {
 851     _p_instance->setAutoPlay((VARIANT_FALSE != autoplay) ? TRUE: FALSE);
 852     return S_OK;
 853 };
 854
 855 STDMETHODIMP VLCControl::get_AutoLoop(VARIANT_BOOL *autoloop)
 856 {
 857     if( NULL == autoloop )
 858         return E_POINTER;
 859
 860     *autoloop = _p_instance->getAutoLoop() ? VARIANT_TRUE: VARIANT_FALSE;
 861     return S_OK;
 862 };
 863
 864 STDMETHODIMP VLCControl::put_AutoLoop(VARIANT_BOOL autoloop)
 865 {
 866     _p_instance->setAutoLoop((VARIANT_FALSE != autoloop) ? TRUE: FALSE);
 867     return S_OK;
 868 };
 869