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(&arg, &value, 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(&arg, &value, 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(&arg, &value, 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(&arg, &value, 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(&arg, &value, 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( NULL == value )
 437         return E_POINTER;
 438
 439     VariantInit(value);
 440
 441     if( 0 == SysStringLen(name) )
 442         return E_INVALIDARG;
 443
 444     int i_vlc = _p_instance->getVLCObject();
 445     if( i_vlc )
 446     {
 447         UINT codePage = _p_instance->getCodePage();
 448         char *psz_varname = CStrFromBSTR(codePage, name);
 449         if( NULL == psz_varname )
 450             return E_OUTOFMEMORY;
 451
 452         HRESULT hr = E_INVALIDARG;
 453
 454         vlc_value_t val;
 455         int i_type;
 456
 457         if( (VLC_SUCCESS == VLC_VariableGet(i_vlc, psz_varname, &val))
 458          && (VLC_SUCCESS == VLC_VariableType(i_vlc, psz_varname, &i_type)) )
 459         {
 460             hr = NOERROR;
 461             switch( i_type )
 462             {
 463                 case VLC_VAR_BOOL:
 464                     V_VT(value) = VT_BOOL;
 465                     V_BOOL(value) = val.b_bool ? VARIANT_TRUE : VARIANT_FALSE;
 466                     break;
 467
 468                 case VLC_VAR_INTEGER:
 469                 case VLC_VAR_HOTKEY:
 470                     V_VT(value) = VT_I4;
 471                     V_I4(value) = val.i_int;
 472                     break;
 473
 474                 case VLC_VAR_FLOAT:
 475                     V_VT(value) = VT_R4;
 476                     V_R4(value) = val.f_float;
 477                     break;
 478
 479                 case VLC_VAR_STRING:
 480                 case VLC_VAR_MODULE:
 481                 case VLC_VAR_FILE:
 482                 case VLC_VAR_DIRECTORY:
 483                 case VLC_VAR_VARIABLE:
 484                     V_VT(value) = VT_BSTR;
 485                     V_BSTR(value) = BSTRFromCStr(codePage, val.psz_string);
 486                     if( NULL != val.psz_string)
 487                         free(val.psz_string);
 488                     break;
 489
 490                 case VLC_VAR_TIME:
 491                     // use a double value to represent time (base is expressed in seconds)
 492                     V_VT(value) = VT_R8;
 493                     V_R8(value) = ((double)val.i_time)/1000000.0;
 494                     break;
 495
 496                 default:
 497                     hr = DISP_E_TYPEMISMATCH;
 498             }
 499         }
 500         CoTaskMemFree(psz_varname);
 501         return hr;
 502     }
 503     return E_UNEXPECTED;
 504 };
 505
 506 static void freeTargetOptions(char **cOptions, int cOptionCount)
 507 {
 508     // clean up
 509     if( NULL != cOptions )
 510     {
 511         for( int pos=0; pos<cOptionCount; ++pos )
 512         {
 513             char *cOption = cOptions[pos];
 514             if( NULL != cOption )
 515                 CoTaskMemFree(cOption);
 516             else
 517                 break;
 518         }
 519         CoTaskMemFree(cOptions);
 520     }
 521 };
 522
 523 static HRESULT createTargetOptions(int codePage, VARIANT *options, char ***cOptions, int *cOptionCount)
 524 {
 525     HRESULT hr = E_INVALIDARG;
 526     if( VT_ERROR == V_VT(options) )
 527     {
 528         if( DISP_E_PARAMNOTFOUND == V_ERROR(options) )
 529         {
 530             // optional parameter not set
 531             *cOptions = NULL;
 532             *cOptionCount = 0;
 533             return NOERROR;
 534         }
 535     }
 536     else if( (VT_EMPTY == V_VT(options)) || (VT_NULL == V_VT(options)) )
 537     {
 538         // null parameter
 539         *cOptions = NULL;
 540         *cOptionCount = 0;
 541         return NOERROR;
 542     }
 543     else if( VT_DISPATCH == V_VT(options) )
 544     {
 545         // collection parameter
 546         VARIANT colEnum;
 547         V_VT(&colEnum) = VT_UNKNOWN;
 548         hr = GetObjectProperty(V_DISPATCH(options), DISPID_NEWENUM, colEnum);
 549         if( SUCCEEDED(hr) )
 550         {
 551             IEnumVARIANT *enumVar;
 552             hr = V_UNKNOWN(&colEnum)->QueryInterface(IID_IEnumVARIANT, (LPVOID *)&enumVar);
 553             if( SUCCEEDED(hr) )
 554             {
 555                 long pos = 0;
 556                 long capacity = 16;
 557                 VARIANT option;
 558
 559                 *cOptions = (char **)CoTaskMemAlloc(capacity*sizeof(char *));
 560                 if( NULL != *cOptions )
 561                 {
 562                     ZeroMemory(*cOptions, sizeof(char *)*capacity);
 563                     while( SUCCEEDED(hr) && (S_OK == enumVar->Next(1, &option, NULL)) )
 564                     {
 565                         if( VT_BSTR == V_VT(&option) )
 566                         {
 567                             char *cOption = CStrFromBSTR(codePage, V_BSTR(&option));
 568                             (*cOptions)[pos] = cOption;
 569                             if( NULL != cOption )
 570                             {
 571                                 ++pos;
 572                                 if( pos == capacity )
 573                                 {
 574                                     char **moreOptions = (char **)CoTaskMemRealloc(*cOptions, (capacity+16)*sizeof(char *));
 575                                     if( NULL != moreOptions )
 576                                     {
 577                                         ZeroMemory(moreOptions+capacity, sizeof(char *)*16);
 578                                         capacity += 16;
 579                                         *cOptions = moreOptions;
 580                                     }
 581                                     else
 582                                         hr = E_OUTOFMEMORY;
 583                                 }
 584                             }
 585                             else
 586                                 hr = ( SysStringLen(V_BSTR(&option)) > 0 ) ?
 587                                     E_OUTOFMEMORY : E_INVALIDARG;
 588                         }
 589                         else
 590                             hr = E_INVALIDARG;
 591
 592                         VariantClear(&option);
 593                     }
 594                     *cOptionCount = pos;
 595                     if( FAILED(hr) )
 596                     {
 597                         // free already processed elements
 598                         freeTargetOptions(*cOptions, *cOptionCount);
 599                     }
 600                 }
 601                 else
 602                     hr = E_OUTOFMEMORY;
 603
 604                 enumVar->Release();
 605             }
 606         }
 607     }
 608     else if( V_ISARRAY(options) )
 609     {
 610         // array parameter
 611         SAFEARRAY *array = V_ISBYREF(options) ? *V_ARRAYREF(options) : V_ARRAY(options);
 612
 613         if( SafeArrayGetDim(array) != 1 )
 614             return E_INVALIDARG;
 615
 616         long lBound = 0;
 617         long uBound = 0;
 618         SafeArrayGetLBound(array, 1, &lBound);
 619         SafeArrayGetUBound(array, 1, &uBound);
 620
 621         // have we got any options
 622         if( uBound >= lBound )
 623         {
 624             VARTYPE vType;
 625             hr = SafeArrayGetVartype(array, &vType);
 626             if( FAILED(hr) )
 627                 return hr;
 628
 629             long pos;
 630
 631             // marshall options into an array of C strings
 632             if( VT_VARIANT == vType )
 633             {
 634                 *cOptions = (char **)CoTaskMemAlloc(sizeof(char *)*(uBound-lBound));
 635                 if( NULL == *cOptions )
 636                     return E_OUTOFMEMORY;
 637
 638                 ZeroMemory(*cOptions, sizeof(char *)*(uBound-lBound));
 639                 for(pos=lBound; SUCCEEDED(hr) && (pos<=uBound); ++pos )
 640                 {
 641                     VARIANT option;
 642                     hr = SafeArrayGetElement(array, &pos, &option);
 643                     if( SUCCEEDED(hr) )
 644                     {
 645                         if( VT_BSTR == V_VT(&option) )
 646                         {
 647                             char *cOption = CStrFromBSTR(codePage, V_BSTR(&option));
 648                             (*cOptions)[pos-lBound] = cOption;
 649                             if( NULL == cOption )
 650                                 hr = ( SysStringLen(V_BSTR(&option)) > 0 ) ?
 651                                     E_OUTOFMEMORY : E_INVALIDARG;
 652                         }
 653                         else
 654                             hr = E_INVALIDARG;
 655                         VariantClear(&option);
 656                     }
 657                 }
 658             }
 659             else if( VT_BSTR == vType )
 660             {
 661                 *cOptions = (char **)CoTaskMemAlloc(sizeof(char *)*(uBound-lBound));
 662                 if( NULL == *cOptions )
 663                     return E_OUTOFMEMORY;
 664
 665                 ZeroMemory(*cOptions, sizeof(char *)*(uBound-lBound));
 666                 for(pos=lBound; (pos<uBound) && SUCCEEDED(hr); ++pos )
 667                 {
 668                     BSTR option;
 669                     hr = SafeArrayGetElement(array, &pos, &option);
 670                     if( SUCCEEDED(hr) )
 671                     {
 672                         char *cOption = CStrFromBSTR(codePage, option);
 673
 674                         (*cOptions)[pos-lBound] = cOption;
 675                         if( NULL == cOption )
 676                             hr = ( SysStringLen(option) > 0 ) ?
 677                                 E_OUTOFMEMORY : E_INVALIDARG;
 678                         SysFreeString(option);
 679                     }
 680                 }
 681             }
 682             else
 683             {
 684                 // unsupported type
 685                 return E_INVALIDARG;
 686             }
 687
 688             *cOptionCount = pos-lBound;
 689             if( FAILED(hr) )
 690             {
 691                 // free already processed elements
 692                 freeTargetOptions(*cOptions, *cOptionCount);
 693             }
 694         }
 695         else
 696         {
 697             // empty array
 698             *cOptions = NULL;
 699             *cOptionCount = 0;
 700             return NOERROR;
 701         }
 702     }
 703     return hr;
 704 };
 705
 706 /*
 707 ** use VARIANT rather than a SAFEARRAY as argument type
 708 ** for compatibility with some scripting language (JScript)
 709 */
 710
 711 STDMETHODIMP VLCControl::addTarget( BSTR uri, VARIANT options, enum VLCPlaylistMode mode, int position)
 712 {
 713     if( 0 == SysStringLen(uri) )
 714         return E_INVALIDARG;
 715
 716     HRESULT hr = E_UNEXPECTED;
 717
 718     int i_vlc = _p_instance->getVLCObject();
 719     if( i_vlc )
 720     {
 721         char *cUri = CStrFromBSTR(CP_UTF8, uri);
 722         if( NULL == cUri )
 723             return E_OUTOFMEMORY;
 724
 725         int cOptionsCount;
 726         char **cOptions;
 727
 728         if( FAILED(createTargetOptions(CP_UTF8, &options, &cOptions, &cOptionsCount)) )
 729             return E_INVALIDARG;
 730
 731         if( VLC_SUCCESS <= VLC_AddTarget(i_vlc, cUri, (const char **)cOptions, cOptionsCount, mode, position) )
 732         {
 733             hr = NOERROR;
 734             if( mode & PLAYLIST_GO )
 735                 _p_instance->fireOnPlayEvent();
 736         }
 737         else
 738         {
 739             hr = E_FAIL;
 740             if( mode & PLAYLIST_GO )
 741                 _p_instance->fireOnStopEvent();
 742         }
 743
 744         freeTargetOptions(cOptions, cOptionsCount);
 745         CoTaskMemFree(cUri);
 746     }
 747     return hr;
 748 };
 749
 750 STDMETHODIMP VLCControl::get_PlaylistIndex(int *index)
 751 {
 752     if( NULL == index )
 753         return E_POINTER;
 754
 755     int i_vlc = _p_instance->getVLCObject();
 756     if( i_vlc )
 757     {
 758         *index = VLC_PlaylistIndex(i_vlc);
 759         return NOERROR;
 760     }
 761     *index = 0;
 762     return E_UNEXPECTED;
 763 };
 764
 765 STDMETHODIMP VLCControl::get_PlaylistCount(int *count)
 766 {
 767     int i_vlc = _p_instance->getVLCObject();
 768     if( i_vlc )
 769     {
 770         *count = VLC_PlaylistNumberOfItems(i_vlc);
 771         return NOERROR;
 772     }
 773     *count = 0;
 774     return E_UNEXPECTED;
 775 };
 776
 777 STDMETHODIMP VLCControl::playlistNext(void)
 778 {
 779     int i_vlc = _p_instance->getVLCObject();
 780     if( i_vlc )
 781     {
 782         VLC_PlaylistNext(i_vlc);
 783         return NOERROR;
 784     }
 785     return E_UNEXPECTED;
 786 };
 787
 788 STDMETHODIMP VLCControl::playlistPrev(void)
 789 {
 790     int i_vlc = _p_instance->getVLCObject();
 791     if( i_vlc )
 792     {
 793         VLC_PlaylistPrev(i_vlc);
 794         return NOERROR;
 795     }
 796     return E_UNEXPECTED;
 797 };
 798
 799 STDMETHODIMP VLCControl::playlistClear(void)
 800 {
 801     int i_vlc = _p_instance->getVLCObject();
 802     if( i_vlc )
 803     {
 804         VLC_PlaylistClear(i_vlc);
 805         return NOERROR;
 806     }
 807     return E_UNEXPECTED;
 808 };
 809
 810 STDMETHODIMP VLCControl::get_VersionInfo(BSTR *version)
 811 {
 812     if( NULL == version )
 813         return E_POINTER;
 814
 815     const char *versionStr = VLC_Version();
 816     if( NULL != versionStr )
 817     {
 818         *version = BSTRFromCStr(_p_instance->getCodePage(), versionStr);
 819
 820         return NULL == *version ? E_OUTOFMEMORY : NOERROR;
 821     }
 822     *version = NULL;
 823     return E_FAIL;
 824 };
 825
 826 STDMETHODIMP VLCControl::get_MRL(BSTR *mrl)
 827 {
 828     if( NULL == mrl )
 829         return E_POINTER;
 830
 831     *mrl = SysAllocStringLen(_p_instance->getMRL(),
 832                 SysStringLen(_p_instance->getMRL()));
 833     return NOERROR;
 834 };
 835
 836 STDMETHODIMP VLCControl::put_MRL(BSTR mrl)
 837 {
 838     _p_instance->setMRL(mrl);
 839
 840     return S_OK;
 841 };
 842
 843 STDMETHODIMP VLCControl::get_AutoPlay(VARIANT_BOOL *autoplay)
 844 {
 845     if( NULL == autoplay )
 846         return E_POINTER;
 847
 848     *autoplay = _p_instance->getAutoPlay() ? VARIANT_TRUE: VARIANT_FALSE;
 849     return S_OK;
 850 };
 851
 852 STDMETHODIMP VLCControl::put_AutoPlay(VARIANT_BOOL autoplay)
 853 {
 854     _p_instance->setAutoPlay((VARIANT_FALSE != autoplay) ? TRUE: FALSE);
 855     return S_OK;
 856 };
 857
 858 STDMETHODIMP VLCControl::get_AutoLoop(VARIANT_BOOL *autoloop)
 859 {
 860     if( NULL == autoloop )
 861         return E_POINTER;
 862
 863     *autoloop = _p_instance->getAutoLoop() ? VARIANT_TRUE: VARIANT_FALSE;
 864     return S_OK;
 865 };
 866
 867 STDMETHODIMP VLCControl::put_AutoLoop(VARIANT_BOOL autoloop)
 868 {
 869     _p_instance->setAutoLoop((VARIANT_FALSE != autoloop) ? TRUE: FALSE);
 870     return S_OK;
 871 };
 872