reactos/base/applications/sndvol32/sndvol32.c

   1 /*
   2  * ReactOS Sound Volume Control
   3  * Copyright (C) 2004-2005 Thomas Weidenmueller
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  18  */
  19 /*
  20  * COPYRIGHT:   See COPYING in the top level directory
  21  * PROJECT:     ReactOS Sound Volume Control
  22  * FILE:        base/applications/sndvol32/sndvol32.c
  23  * PROGRAMMERS: Thomas Weidenmueller <w3seek@reactos.com>
  24  */
  25
  26 #include "sndvol32.h"
  27
  28 #include <shellapi.h>
  29
  30 HINSTANCE hAppInstance;
  31 ATOM MainWindowClass;
  32 HWND hMainWnd;
  33 HANDLE hAppHeap;
  34 LPTSTR lpAppTitle;
  35 PREFERENCES_CONTEXT Preferences;
  36
  37 #define GetDialogData(hwndDlg, type) \
  38     ( P##type )GetWindowLongPtr((hwndDlg), DWLP_USER)
  39 #define GetWindowData(hwnd, type) \
  40     ( P##type )GetWindowLongPtr((hwnd), GWL_USERDATA)
  41
  42 /******************************************************************************/
  43
  44
  45
  46 typedef struct _PREFERENCES_FILL_DEVICES
  47 {
  48     PPREFERENCES_CONTEXT PrefContext;
  49     HWND hComboBox;
  50     UINT Selected;
  51 } PREFERENCES_FILL_DEVICES, *PPREFERENCES_FILL_DEVICES;
  52
  53 static BOOL CALLBACK
  54 FillDeviceComboBox(PSND_MIXER Mixer,
  55                    UINT Id,
  56                    LPCTSTR ProductName,
  57                    PVOID Context)
  58 {
  59     LRESULT lres;
  60     PPREFERENCES_FILL_DEVICES FillContext = (PPREFERENCES_FILL_DEVICES)Context;
  61
  62     UNREFERENCED_PARAMETER(Mixer);
  63
  64     lres = SendMessage(FillContext->hComboBox,
  65                        CB_ADDSTRING,
  66                        0,
  67                        (LPARAM)ProductName);
  68     if (lres != CB_ERR)
  69     {
  70         /* save the index so we don't screw stuff when the combobox is sorted... */
  71         SendMessage(FillContext->hComboBox,
  72                     CB_SETITEMDATA,
  73                     (WPARAM)lres,
  74                     Id);
  75
  76         if (Id == FillContext->Selected)
  77         {
  78             SendMessage(FillContext->hComboBox,
  79                         CB_SETCURSEL,
  80                         (WPARAM)lres,
  81                         0);
  82         }
  83     }
  84
  85     return TRUE;
  86 }
  87
  88 static BOOL CALLBACK
  89 PrefDlgAddLine(PSND_MIXER Mixer,
  90                LPMIXERLINE Line,
  91                UINT DisplayControls,
  92                PVOID Context)
  93 {
  94     PPREFERENCES_CONTEXT PrefContext = (PPREFERENCES_CONTEXT)Context;
  95
  96     UNREFERENCED_PARAMETER(Mixer);
  97         UNREFERENCED_PARAMETER(DisplayControls);
  98
  99     switch (Line->dwComponentType)
 100     {
 101         case MIXERLINE_COMPONENTTYPE_DST_SPEAKERS:
 102             if (PrefContext->PlaybackID == (DWORD)-1)
 103             {
 104                 PrefContext->PlaybackID = Line->dwLineID;
 105
 106                 if (PrefContext->SelectedLine == (DWORD)-1)
 107                 {
 108                     PrefContext->SelectedLine = Line->dwLineID;
 109                 }
 110             }
 111             else
 112                 goto AddToOthersLines;
 113
 114             break;
 115
 116         case MIXERLINE_COMPONENTTYPE_DST_WAVEIN:
 117             if (PrefContext->RecordingID == (DWORD)-1)
 118             {
 119                 PrefContext->RecordingID = Line->dwLineID;
 120
 121                 if (PrefContext->SelectedLine == (DWORD)-1)
 122                 {
 123                     PrefContext->SelectedLine = Line->dwLineID;
 124                 }
 125             }
 126             else
 127                 goto AddToOthersLines;
 128
 129             break;
 130
 131         default:
 132         {
 133             LRESULT lres;
 134             HWND hwndCbOthers;
 135
 136             if (PrefContext->SelectedLine == (DWORD)-1)
 137             {
 138                 PrefContext->SelectedLine = Line->dwLineID;
 139             }
 140
 141 AddToOthersLines:
 142             hwndCbOthers = GetDlgItem(PrefContext->hwndDlg,
 143                                       IDC_LINE);
 144
 145             lres = SendMessage(hwndCbOthers,
 146                                CB_ADDSTRING,
 147                                0,
 148                                (LPARAM)Line->szName);
 149             if (lres != CB_ERR)
 150             {
 151                 SendMessage(hwndCbOthers,
 152                             CB_SETITEMDATA,
 153                             (WPARAM)lres,
 154                             Line->dwLineID);
 155
 156                 PrefContext->OtherLines++;
 157             }
 158             break;
 159         }
 160     }
 161
 162     return TRUE;
 163 }
 164
 165 static BOOL CALLBACK
 166 PrefDlgAddConnection(PSND_MIXER Mixer,
 167                      DWORD LineID,
 168                      LPMIXERLINE Line,
 169                      PVOID Context)
 170 {
 171     PPREFERENCES_CONTEXT PrefContext = (PPREFERENCES_CONTEXT)Context;
 172     HWND hwndControls;
 173     LVITEM lvi;
 174     UINT i;
 175
 176     UNREFERENCED_PARAMETER(Mixer);
 177         UNREFERENCED_PARAMETER(LineID);
 178
 179     if (Line->cControls != 0)
 180     {
 181         hwndControls = GetDlgItem(PrefContext->hwndDlg,
 182                                   IDC_CONTROLS);
 183
 184         lvi.mask = LVIF_TEXT | LVIF_PARAM;
 185         lvi.iItem = PrefContext->tmp++;
 186         lvi.iSubItem = 0;
 187         lvi.pszText = Line->szName;
 188         lvi.lParam = (LPARAM)Line->dwSource;
 189
 190         i = SendMessage(hwndControls,
 191                         LVM_INSERTITEM,
 192                         0,
 193                         (LPARAM)&lvi);
 194         if (i != (UINT)-1)
 195         {
 196             TCHAR LineName[MIXER_LONG_NAME_CHARS];
 197             DWORD Flags;
 198             BOOL SelLine = FALSE;
 199
 200             if (SndMixerGetLineName(PrefContext->Mixer,
 201                                     PrefContext->SelectedLine,
 202                                     LineName,
 203                                     MIXER_LONG_NAME_CHARS,
 204                                     TRUE) == -1)
 205             {
 206                 LineName[0] = TEXT('\0');
 207             }
 208
 209             if (ReadLineConfig(PrefContext->DeviceName,
 210                                LineName,
 211                                Line->szName,
 212                                &Flags))
 213             {
 214                 if (Flags != 0x4)
 215                 {
 216                     SelLine = TRUE;
 217                 }
 218             }
 219
 220             ListView_SetCheckState(hwndControls,
 221                                    i,
 222                                    SelLine);
 223         }
 224     }
 225
 226     return TRUE;
 227 }
 228
 229 static VOID
 230 UpdatePrefDlgControls(PPREFERENCES_CONTEXT Context,
 231                       DWORD LineID)
 232 {
 233     INT OldID, MixerID = 0;
 234     INT DeviceCbIndex;
 235
 236     /* select the mixer */
 237     DeviceCbIndex = SendDlgItemMessage(Context->hwndDlg,
 238                                        IDC_MIXERDEVICE,
 239                                        CB_GETCURSEL,
 240                                        0,
 241                                        0);
 242     if (DeviceCbIndex != CB_ERR)
 243     {
 244         MixerID = SendDlgItemMessage(Context->hwndDlg,
 245                                      IDC_MIXERDEVICE,
 246                                      CB_GETITEMDATA,
 247                                      DeviceCbIndex,
 248                                      0);
 249         if (MixerID == CB_ERR)
 250         {
 251             MixerID = 0;
 252         }
 253     }
 254
 255     OldID = Context->Selected;
 256     if (MixerID != OldID &&
 257         SndMixerSelect(Context->Mixer,
 258                        MixerID))
 259     {
 260         Context->Selected = SndMixerGetSelection(Context->Mixer);
 261
 262         /* update the controls */
 263         Context->PlaybackID = (DWORD)-1;
 264         Context->RecordingID = (DWORD)-1;
 265         Context->OtherLines = 0;
 266         Context->SelectedLine = (DWORD)-1;
 267
 268         SndMixerGetProductName(Context->Mixer,
 269                                Context->DeviceName,
 270                                sizeof(Context->DeviceName) / sizeof(Context->DeviceName[0]));
 271
 272         if (SndMixerEnumLines(Context->Mixer,
 273                               PrefDlgAddLine,
 274                               Context))
 275         {
 276             UINT SelBox = 0;
 277
 278             /* enable/disable controls and make default selection */
 279             EnableWindow(GetDlgItem(Context->hwndDlg,
 280                                     IDC_PLAYBACK),
 281                          Context->PlaybackID != (DWORD)-1);
 282             CheckDlgButton(Context->hwndDlg,
 283                            IDC_PLAYBACK,
 284                            (Context->PlaybackID != (DWORD)-1 && SelBox++ == 0) ?
 285                                BST_CHECKED : BST_UNCHECKED);
 286
 287             EnableWindow(GetDlgItem(Context->hwndDlg,
 288                                     IDC_RECORDING),
 289                          Context->RecordingID != (DWORD)-1);
 290             CheckDlgButton(Context->hwndDlg,
 291                            IDC_RECORDING,
 292                            (Context->RecordingID != (DWORD)-1 && SelBox++ == 0) ?
 293                                BST_CHECKED : BST_UNCHECKED);
 294
 295             if (Context->OtherLines != 0)
 296             {
 297                 /* select the first item in the other lines combo box by default */
 298                 SendDlgItemMessage(Context->hwndDlg,
 299                                    IDC_LINE,
 300                                    CB_SETCURSEL,
 301                                    0,
 302                                    0);
 303             }
 304             EnableWindow(GetDlgItem(Context->hwndDlg,
 305                                     IDC_LINE),
 306                          FALSE);
 307             EnableWindow(GetDlgItem(Context->hwndDlg,
 308                                     IDC_OTHER),
 309                          Context->OtherLines != 0);
 310             CheckDlgButton(Context->hwndDlg,
 311                            IDC_LINE,
 312                            (Context->OtherLines != 0 && SelBox++ == 0) ?
 313                                BST_CHECKED : BST_UNCHECKED);
 314
 315             /* disable the OK button if the device doesn't have any lines */
 316             EnableWindow(GetDlgItem(Context->hwndDlg,
 317                                     IDOK),
 318                          Context->PlaybackID != (DWORD)-1 ||
 319                          Context->RecordingID != (DWORD)-1 ||
 320                          Context->OtherLines != 0);
 321
 322             LineID = Context->SelectedLine;
 323         }
 324     }
 325
 326     /* update the line sources list */
 327     if ((MixerID != OldID && Context->SelectedLine != (DWORD)-1) ||
 328         (Context->SelectedLine != LineID && LineID != (DWORD)-1))
 329     {
 330         Context->SelectedLine = LineID;
 331
 332         (void)ListView_DeleteAllItems(GetDlgItem(Context->hwndDlg,
 333                                       IDC_CONTROLS));
 334
 335         Context->tmp = 0;
 336         SndMixerEnumConnections(Context->Mixer,
 337                                 LineID,
 338                                 PrefDlgAddConnection,
 339                                 Context);
 340     }
 341 }
 342
 343 static
 344 VOID
 345 WriteLineSettings(PPREFERENCES_CONTEXT Context, HWND hwndDlg)
 346 {
 347     HWND hwndControls;
 348     INT Count, Index;
 349     WCHAR LineName[MIXER_LONG_NAME_CHARS];
 350     WCHAR DestinationName[MIXER_LONG_NAME_CHARS];
 351     DWORD Flags;
 352     PSNDVOL_REG_LINESTATE LineStates;
 353
 354     /* get list view */
 355     hwndControls = GetDlgItem(hwndDlg, IDC_CONTROLS);
 356
 357     /* get list item count */
 358     Count = ListView_GetItemCount(hwndControls);
 359
 360     /* sanity check */
 361     assert(Count);
 362
 363     if (SndMixerGetLineName(Context->Mixer, Context->SelectedLine, DestinationName, MIXER_LONG_NAME_CHARS, TRUE) == -1)
 364     {
 365         /* failed to get destination line name */
 366         return;
 367     }
 368
 369     /* allocate line states array */
 370     LineStates = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(SNDVOL_REG_LINESTATE) * Count);
 371     if (LineStates == NULL)
 372     {
 373         /* failed to allocate line states array */
 374         return;
 375     }
 376
 377
 378     for(Index = 0; Index < Count; Index++)
 379     {
 380         /* set to empty */
 381         LineName[0] = L'\0';
 382
 383         /* get item text */
 384         ListView_GetItemText(hwndControls, Index, 0, LineName, MIXER_LONG_NAME_CHARS);
 385
 386         /* make sure it is null terminated */
 387         LineName[MIXER_LONG_NAME_CHARS-1] = L'\0';
 388
 389         /* get check state */
 390         Flags = (ListView_GetCheckState(hwndControls, Index) == 0 ? 0x4 : 0);
 391
 392         /* copy line name */
 393         wcscpy(LineStates[Index].LineName, LineName);
 394
 395         /* store flags */
 396         LineStates[Index].Flags = Flags;
 397     }
 398
 399     /* now write the line config */
 400     WriteLineConfig(Context->DeviceName, DestinationName, LineStates, sizeof(SNDVOL_REG_LINESTATE) * Count);
 401
 402     /* free line states */
 403     HeapFree(GetProcessHeap(), 0, LineStates);
 404 }
 405
 406 static INT_PTR CALLBACK
 407 DlgPreferencesProc(HWND hwndDlg,
 408                    UINT uMsg,
 409                    WPARAM wParam,
 410                    LPARAM lParam)
 411 {
 412     PPREFERENCES_CONTEXT Context;
 413
 414     switch (uMsg)
 415     {
 416         case WM_COMMAND:
 417         {
 418             Context = GetDialogData(hwndDlg,
 419                                     PREFERENCES_CONTEXT);
 420             switch (LOWORD(wParam))
 421             {
 422                 case IDC_MIXERDEVICE:
 423                 {
 424                     if (HIWORD(wParam) == CBN_SELCHANGE)
 425                     {
 426                         UpdatePrefDlgControls(Context,
 427                                               (DWORD)-1);
 428                     }
 429                     break;
 430                 }
 431
 432                 case IDC_LINE:
 433                 {
 434                     if (HIWORD(wParam) == CBN_SELCHANGE)
 435                     {
 436                         INT LineID;
 437                         INT Index;
 438
 439                         Index = SendDlgItemMessage(hwndDlg,
 440                                                    IDC_LINE,
 441                                                    CB_GETCURSEL,
 442                                                    0,
 443                                                    0);
 444                         if (Index != CB_ERR)
 445                         {
 446                             LineID = SendDlgItemMessage(hwndDlg,
 447                                                         IDC_LINE,
 448                                                         CB_GETITEMDATA,
 449                                                         Index,
 450                                                         0);
 451                             if (LineID != CB_ERR)
 452                             {
 453                                 UpdatePrefDlgControls(Context,
 454                                                       LineID);
 455                             }
 456                         }
 457                     }
 458                     break;
 459                 }
 460
 461                 case IDC_PLAYBACK:
 462                 {
 463                     UpdatePrefDlgControls(Context,
 464                                           Context->PlaybackID);
 465                     EnableWindow(GetDlgItem(hwndDlg,
 466                                             IDC_LINE),
 467                                  FALSE);
 468                     break;
 469                 }
 470
 471                 case IDC_RECORDING:
 472                 {
 473                     UpdatePrefDlgControls(Context,
 474                                           Context->RecordingID);
 475                     EnableWindow(GetDlgItem(hwndDlg,
 476                                             IDC_LINE),
 477                                  FALSE);
 478                     break;
 479                 }
 480
 481                 case IDC_OTHER:
 482                 {
 483                     INT LineCbIndex;
 484                     INT LineID;
 485
 486                     EnableWindow(GetDlgItem(hwndDlg,
 487                                             IDC_LINE),
 488                                  TRUE);
 489
 490                     LineCbIndex = SendDlgItemMessage(hwndDlg,
 491                                                      IDC_LINE,
 492                                                      CB_GETCURSEL,
 493                                                      0,
 494                                                      0);
 495                     if (LineCbIndex != CB_ERR)
 496                     {
 497                         LineID = SendDlgItemMessage(hwndDlg,
 498                                                     IDC_LINE,
 499                                                     CB_GETITEMDATA,
 500                                                     LineCbIndex,
 501                                                     0);
 502                         if (LineID != CB_ERR)
 503                         {
 504                             UpdatePrefDlgControls(Context,
 505                                                   LineID);
 506                         }
 507                     }
 508                     break;
 509                 }
 510
 511                 case IDOK:
 512                 {
 513                     /* write line settings */
 514                     WriteLineSettings(Context, hwndDlg);
 515
 516                     /* fall through */
 517                 }
 518                 case IDCANCEL:
 519                 {
 520                     EndDialog(hwndDlg,
 521                               LOWORD(wParam));
 522                     break;
 523                 }
 524             }
 525             break;
 526         }
 527
 528         case WM_INITDIALOG:
 529         {
 530             PREFERENCES_FILL_DEVICES FillDevContext;
 531             LVCOLUMN lvc;
 532             RECT rcClient;
 533             HWND hwndControls;
 534
 535             SetWindowLongPtr(hwndDlg,
 536                              DWLP_USER,
 537                              (LONG_PTR)lParam);
 538             Context = (PPREFERENCES_CONTEXT)((LONG_PTR)lParam);
 539             Context->hwndDlg = hwndDlg;
 540             Context->Mixer = SndMixerCreate(hwndDlg);
 541             Context->Selected = (UINT)-1;
 542
 543             FillDevContext.PrefContext = Context;
 544             FillDevContext.hComboBox = GetDlgItem(hwndDlg,
 545                                                   IDC_MIXERDEVICE);
 546             FillDevContext.Selected = SndMixerGetSelection(Context->Mixer);
 547             SndMixerEnumProducts(Context->Mixer,
 548                                  FillDeviceComboBox,
 549                                  &FillDevContext);
 550
 551             /* initialize the list view control */
 552             hwndControls = GetDlgItem(hwndDlg,
 553                                       IDC_CONTROLS);
 554             (void)ListView_SetExtendedListViewStyle(hwndControls,
 555                                                     LVS_EX_CHECKBOXES);
 556
 557             GetClientRect(hwndControls,
 558                           &rcClient);
 559             lvc.mask = LVCF_TEXT | LVCF_WIDTH;
 560             lvc.pszText = TEXT("");
 561             lvc.cx = rcClient.right;
 562             SendMessage(hwndControls,
 563                         LVM_INSERTCOLUMN,
 564                         0,
 565                         (LPARAM)&lvc);
 566
 567             /* update all controls */
 568             UpdatePrefDlgControls(Context,
 569                                   (DWORD)Context->SelectedLine);
 570             return TRUE;
 571         }
 572
 573         case WM_CLOSE:
 574         {
 575             EndDialog(hwndDlg,
 576                       IDCANCEL);
 577             break;
 578         }
 579
 580         case WM_SYSCOLORCHANGE:
 581         {
 582             HWND hwndControls;
 583
 584             /* Forward WM_SYSCOLORCHANGE */
 585             hwndControls = GetDlgItem(hwndDlg, IDC_CONTROLS);
 586             SendMessage(hwndControls, WM_SYSCOLORCHANGE, 0, 0);
 587             break;
 588         }
 589     }
 590
 591     return 0;
 592 }
 593
 594
 595 /******************************************************************************/
 596
 597 static VOID
 598 DeleteMixerWindowControls(PMIXER_WINDOW MixerWindow)
 599 {
 600     DWORD Index;
 601
 602     for(Index = 0; Index < MixerWindow->WindowCount; Index++)
 603     {
 604         /* destroys the window */
 605         DestroyWindow(MixerWindow->Window[Index]);
 606     }
 607
 608     /* free memory */
 609     HeapFree(GetProcessHeap(), 0, MixerWindow->Window);
 610
 611     /* set to null */
 612     MixerWindow->Window = NULL;
 613     MixerWindow->WindowCount = 0;
 614 }
 615
 616 static BOOL
 617 RebuildMixerWindowControls(PPREFERENCES_CONTEXT PrefContext)
 618 {
 619     /* delete existing mixer controls */
 620     DeleteMixerWindowControls(PrefContext->MixerWindow);
 621
 622     /* load new mixer controls */
 623     LoadDialogCtrls(PrefContext);
 624
 625     return TRUE;
 626 }
 627
 628 static
 629 BOOL
 630 CALLBACK
 631 SetVolumeCallback(PSND_MIXER Mixer, DWORD LineID, LPMIXERLINE Line, PVOID Ctx)
 632 {
 633     UINT ControlCount = 0, Index;
 634     LPMIXERCONTROL Control = NULL;
 635     MIXERCONTROLDETAILS_UNSIGNED uDetails;
 636     MIXERCONTROLDETAILS_BOOLEAN bDetails;
 637     PSET_VOLUME_CONTEXT Context = (PSET_VOLUME_CONTEXT)Ctx;
 638
 639     /* check if the line name is equal */
 640     if (wcsicmp(Line->szName, Context->LineName))
 641     {
 642         /* it is not */
 643         return TRUE;
 644     }
 645
 646     /* query controls */
 647     if (SndMixerQueryControls(Mixer, &ControlCount, Line, &Control) == FALSE)
 648     {
 649         /* failed to query for controls */
 650         return FALSE;
 651     }
 652
 653     /* now go through all controls and compare control ids */
 654     for(Index = 0; Index < ControlCount; Index++)
 655     {
 656         if (Context->bVertical)
 657         {
 658             if ((Control[Index].dwControlType & MIXERCONTROL_CT_CLASS_MASK) == MIXERCONTROL_CT_CLASS_FADER)
 659             {
 660                 /* FIXME: give me granularity */
 661                 DWORD Step = 0x10000 / 5;
 662
 663                 /* set up details */
 664                 uDetails.dwValue = 0x10000 - Step * Context->SliderPos;
 665
 666                 /* set volume */
 667                 SndMixerSetVolumeControlDetails(Preferences.MixerWindow->Mixer, Control[Index].dwControlID, sizeof(MIXERCONTROLDETAILS_UNSIGNED), (LPVOID)&uDetails);
 668
 669                 /* done */
 670                 break;
 671             }
 672         }
 673         else if (Context->bSwitch)
 674         {
 675             if ((Control[Index].dwControlType & MIXERCONTROL_CT_CLASS_MASK) == MIXERCONTROL_CT_CLASS_SWITCH)
 676             {
 677                 /* set up details */
 678                 bDetails.fValue = Context->SliderPos;
 679
 680                 /* set volume */
 681                 SndMixerSetVolumeControlDetails(Preferences.MixerWindow->Mixer, Control[Index].dwControlID, sizeof(MIXERCONTROLDETAILS_BOOLEAN), (LPVOID)&bDetails);
 682
 683                 /* done */
 684                 break;
 685             }
 686         }
 687         else
 688         {
 689             /* FIXME: implement left - right channel switch support */
 690             assert(0);
 691         }
 692     }
 693
 694     /* free controls */
 695     HeapFree(GetProcessHeap(), 0, Control);
 696
 697
 698     /* done */
 699     return TRUE;
 700 }
 701
 702 static
 703 BOOL
 704 CALLBACK
 705 MixerControlChangeCallback(PSND_MIXER Mixer, DWORD LineID, LPMIXERLINE Line, PVOID Context)
 706 {
 707     UINT ControlCount = 0, Index;
 708     LPMIXERCONTROL Control = NULL;
 709
 710     /* check if the line has controls */
 711     if (Line->cControls == 0)
 712     {
 713         /* no controls */
 714         return TRUE;
 715     }
 716
 717     /* query controls */
 718     if (SndMixerQueryControls(Mixer, &ControlCount, Line, &Control) == FALSE)
 719     {
 720         /* failed to query for controls */
 721         return FALSE;
 722     }
 723
 724     /* now go through all controls and compare control ids */
 725     for(Index = 0; Index < ControlCount; Index++)
 726     {
 727         if (Control[Index].dwControlID == PtrToUlong(Context))
 728         {
 729             if ((Control[Index].dwControlType & MIXERCONTROL_CT_CLASS_MASK) == MIXERCONTROL_CT_CLASS_SWITCH)
 730             {
 731                 MIXERCONTROLDETAILS_BOOLEAN Details;
 732
 733                 /* get volume control details */
 734                 if (SndMixerGetVolumeControlDetails(Preferences.MixerWindow->Mixer, Control[Index].dwControlID, sizeof(MIXERCONTROLDETAILS_BOOLEAN), (LPVOID)&Details) != -1)
 735                 {
 736                     /* update dialog control */
 737                     UpdateDialogLineSwitchControl(&Preferences, Line, Details.fValue);
 738                 }
 739             }
 740             else if ((Control[Index].dwControlType & MIXERCONTROL_CT_CLASS_MASK) == MIXERCONTROL_CT_CLASS_FADER)
 741             {
 742                 MIXERCONTROLDETAILS_UNSIGNED Details;
 743
 744                 /* get volume control details */
 745                 if (SndMixerGetVolumeControlDetails(Preferences.MixerWindow->Mixer, Control[Index].dwControlID, sizeof(MIXERCONTROLDETAILS_UNSIGNED), (LPVOID)&Details) != -1)
 746                 {
 747                     /* update dialog control */
 748                     DWORD Position;
 749                     DWORD Step = 0x10000 / 5;
 750
 751                     /* FIXME: give me granularity */
 752                     Position = 5 - (Details.dwValue / Step);
 753
 754                     /* update volume control slider */
 755                     UpdateDialogLineSliderControl(&Preferences, Line, Control[Index].dwControlID, IDC_LINE_SLIDER_VERT, Position);
 756                 }
 757             }
 758             break;
 759         }
 760     }
 761
 762     /* free controls */
 763     HeapFree(GetProcessHeap(), 0, Control);
 764
 765
 766     /* done */
 767     return TRUE;
 768 }
 769
 770
 771 static LRESULT CALLBACK
 772 MainWindowProc(HWND hwnd,
 773                UINT uMsg,
 774                WPARAM wParam,
 775                LPARAM lParam)
 776 {
 777     PMIXER_WINDOW MixerWindow;
 778     DWORD CtrlID, LineOffset;
 779     LRESULT Result = 0;
 780     SET_VOLUME_CONTEXT Context;
 781
 782     switch (uMsg)
 783     {
 784         case WM_COMMAND:
 785         {
 786             MixerWindow = GetWindowData(hwnd,
 787                                         MIXER_WINDOW);
 788
 789             switch (LOWORD(wParam))
 790             {
 791                 case IDC_PROPERTIES:
 792                 {
 793                     PREFERENCES_CONTEXT Pref;
 794
 795                     Pref.MixerWindow = MixerWindow;
 796                     Pref.Mixer = NULL;
 797                     Pref.SelectedLine = Preferences.SelectedLine;
 798
 799                     if (DialogBoxParam(hAppInstance,
 800                                        MAKEINTRESOURCE(IDD_PREFERENCES),
 801                                        hwnd,
 802                                        DlgPreferencesProc,
 803                                        (LPARAM)&Pref) == IDOK)
 804                     {
 805                         /* update window */
 806                         TCHAR szProduct[MAXPNAMELEN];
 807
 808                         /* get mixer product name */
 809                         if (SndMixerGetProductName(MixerWindow->Mixer,
 810                                                    szProduct,
 811                                                    sizeof(szProduct) / sizeof(szProduct[0])) == -1)
 812                         {
 813                             /* failed to get name */
 814                             szProduct[0] = L'\0';
 815                         }
 816                         else
 817                         {
 818                             /* copy product */
 819                             wcscpy(Preferences.DeviceName, szProduct);
 820                         }
 821
 822                         /* destroy old status bar */
 823                         DestroyWindow(MixerWindow->hStatusBar);
 824
 825                         /* update details */
 826                         Preferences.SelectedLine = Pref.SelectedLine;
 827
 828                         /* destroy old mixer */
 829                         SndMixerDestroy(Preferences.MixerWindow->Mixer);
 830
 831                         /* use new selected mixer */
 832                         Preferences.MixerWindow->Mixer = Pref.Mixer;
 833
 834                         /* rebuild dialog controls */
 835                         RebuildMixerWindowControls(&Preferences);
 836
 837                         /* create status window */
 838                         MixerWindow->hStatusBar = CreateStatusWindow(WS_VISIBLE | WS_CHILD | WS_CLIPSIBLINGS,
 839                                                                      NULL,
 840                                                                      hwnd,
 841                                                                      0);
 842
 843                         /* set status bar */
 844                         if (MixerWindow->hStatusBar)
 845                         {
 846                             SendMessage(MixerWindow->hStatusBar,
 847                                 WM_SETTEXT,
 848                                 0,
 849                                 (LPARAM)szProduct);
 850                         }
 851                     }
 852                     break;
 853                 }
 854
 855                 case IDC_EXIT:
 856                 {
 857                     PostQuitMessage(0);
 858                     break;
 859                 }
 860
 861                 case IDC_ABOUT:
 862                 {
 863                     HICON hAppIcon = (HICON)GetClassLongPtrW(hwnd,
 864                                                              GCLP_HICON);
 865                     ShellAbout(hwnd,
 866                                lpAppTitle,
 867                                NULL,
 868                                hAppIcon);
 869                     break;
 870                 }
 871
 872                 default:
 873                 {
 874                     /* get button id */
 875                     CtrlID = LOWORD(wParam);
 876
 877                     /* check if the message is from the line switch */
 878                     if (HIWORD(wParam) == BN_CLICKED && (CtrlID % IDC_LINE_SWITCH == 0))
 879                     {
 880                          /* compute line offset */
 881                          LineOffset = CtrlID / IDC_LINE_SWITCH;
 882
 883                         /* compute window id of line name static control */
 884                         CtrlID = LineOffset * IDC_LINE_NAME;
 885
 886                        /* get line name */
 887                        if (GetDlgItemTextW(hwnd, CtrlID, Context.LineName, MIXER_LONG_NAME_CHARS) != 0)
 888                        {
 889                            /* setup context */
 890                            Context.SliderPos = SendMessage((HWND)lParam, BM_GETCHECK, 0, 0);
 891                            Context.bVertical = FALSE;
 892                            Context.bSwitch = TRUE;
 893
 894                            /* set volume */
 895                            SndMixerEnumConnections(Preferences.MixerWindow->Mixer, Preferences.SelectedLine, SetVolumeCallback, (LPVOID)&Context);
 896                        }
 897                     }
 898                 }
 899
 900             }
 901             break;
 902         }
 903
 904         case MM_MIXM_LINE_CHANGE:
 905         {
 906             DPRINT("MM_MIXM_LINE_CHANGE\n");
 907             break;
 908         }
 909
 910         case MM_MIXM_CONTROL_CHANGE:
 911         {
 912             DPRINT("MM_MIXM_CONTROL_CHANGE\n");
 913
 914             /* get mixer window */
 915             MixerWindow = GetWindowData(hwnd,
 916                                         MIXER_WINDOW);
 917
 918             /* sanity checks */
 919             assert(MixerWindow);
 920             assert(MixerWindow->Mixer->hmx == (HMIXER)wParam);
 921
 922             SndMixerEnumConnections(MixerWindow->Mixer, Preferences.SelectedLine, MixerControlChangeCallback, (PVOID)lParam);
 923             break;
 924         }
 925
 926         case WM_VSCROLL:
 927         {
 928             if (LOWORD(wParam) == TB_THUMBTRACK)
 929             {
 930                 /* get dialog item ctrl */
 931                 CtrlID = GetDlgCtrlID((HWND)lParam);
 932
 933                 /* get line index */
 934                 LineOffset = CtrlID / IDC_LINE_SLIDER_VERT;
 935
 936                 /* compute window id of line name static control */
 937                 CtrlID = LineOffset * IDC_LINE_NAME;
 938
 939                 /* get line name */
 940                 if (GetDlgItemTextW(hwnd, CtrlID, Context.LineName, MIXER_LONG_NAME_CHARS) != 0)
 941                 {
 942                     /* setup context */
 943                     Context.SliderPos = HIWORD(wParam);
 944                     Context.bVertical = TRUE;
 945                     Context.bSwitch = FALSE;
 946
 947                     /* set volume */
 948                     SndMixerEnumConnections(Preferences.MixerWindow->Mixer, Preferences.SelectedLine, SetVolumeCallback, (LPVOID)&Context);
 949                 }
 950             }
 951
 952             break;
 953         }
 954
 955
 956         case WM_CREATE:
 957         {
 958             MixerWindow = ((LPCREATESTRUCT)lParam)->lpCreateParams;
 959             SetWindowLongPtr(hwnd,
 960                              GWL_USERDATA,
 961                              (LONG_PTR)MixerWindow);
 962             MixerWindow->hWnd = hwnd;
 963             MixerWindow->Mixer = SndMixerCreate(MixerWindow->hWnd);
 964             if (MixerWindow->Mixer != NULL)
 965             {
 966                 TCHAR szProduct[MAXPNAMELEN];
 967
 968                 /* get mixer product name */
 969                 if (SndMixerGetProductName(MixerWindow->Mixer,
 970                                            szProduct,
 971                                            sizeof(szProduct) / sizeof(szProduct[0])) == -1)
 972                 {
 973                     /* failed to get name */
 974                     szProduct[0] = L'\0';
 975                 }
 976
 977
 978                 /* initialize preferences */
 979                 ZeroMemory(&Preferences, sizeof(Preferences));
 980
 981                 /* store mixer */
 982                 Preferences.Mixer = MixerWindow->Mixer;
 983
 984                 /* store mixer window */
 985                 Preferences.MixerWindow = MixerWindow;
 986
 987                 /* first destination line id */
 988                 Preferences.SelectedLine = 0xFFFF0000;
 989
 990                 /* copy product */
 991                 wcscpy(Preferences.DeviceName, szProduct);
 992
 993                 if (!RebuildMixerWindowControls(&Preferences))
 994                 {
 995                     DPRINT("Rebuilding mixer window controls failed!\n");
 996                     SndMixerDestroy(MixerWindow->Mixer);
 997                     MixerWindow->Mixer = NULL;
 998                     Result = -1;
 999                 }
1000
1001                 /* create status window */
1002                 MixerWindow->hStatusBar = CreateStatusWindow(WS_VISIBLE | WS_CHILD | WS_CLIPSIBLINGS,
1003                                                              NULL,
1004                                                              hwnd,
1005                                                              0);
1006                 if (MixerWindow->hStatusBar)
1007                 {
1008                     SendMessage(MixerWindow->hStatusBar,
1009                                 WM_SETTEXT,
1010                                 0,
1011                                 (LPARAM)szProduct);
1012                 }
1013             }
1014             break;
1015         }
1016
1017         case WM_DESTROY:
1018         {
1019             MixerWindow = GetWindowData(hwnd,
1020                                         MIXER_WINDOW);
1021             if (MixerWindow != NULL)
1022             {
1023                 if (MixerWindow->Mixer != NULL)
1024                 {
1025                     SndMixerDestroy(MixerWindow->Mixer);
1026                 }
1027                 HeapFree(hAppHeap, 0, MixerWindow);
1028             }
1029             break;
1030         }
1031
1032         case WM_CLOSE:
1033         {
1034             PostQuitMessage(0);
1035             break;
1036         }
1037
1038         default:
1039         {
1040             Result = DefWindowProc(hwnd,
1041                                    uMsg,
1042                                    wParam,
1043                                    lParam);
1044             break;
1045         }
1046     }
1047
1048     return Result;
1049 }
1050
1051 static BOOL
1052 RegisterApplicationClasses(VOID)
1053 {
1054     WNDCLASSEX wc;
1055
1056     wc.cbSize = sizeof(WNDCLASSEX);
1057     wc.style = CS_HREDRAW | CS_VREDRAW;
1058     wc.lpfnWndProc = MainWindowProc;
1059     wc.cbClsExtra = 0;
1060     wc.cbWndExtra = sizeof(PMIXER_WINDOW);
1061     wc.hInstance = hAppInstance;
1062     wc.hIcon = LoadIcon(hAppInstance,
1063                         MAKEINTRESOURCE(IDI_MAINAPP));
1064     wc.hCursor = LoadCursor(NULL,
1065                             IDC_ARROW);
1066     wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
1067     wc.lpszMenuName = NULL;
1068     wc.lpszClassName = SZ_APP_CLASS;
1069     wc.hIconSm = NULL;
1070     MainWindowClass = RegisterClassEx(&wc);
1071
1072     return MainWindowClass != 0;
1073 }
1074
1075 static VOID
1076 UnregisterApplicationClasses(VOID)
1077 {
1078     UnregisterClass(SZ_APP_CLASS,
1079                     hAppInstance);
1080 }
1081
1082 static HWND
1083 CreateApplicationWindow(VOID)
1084 {
1085     HWND hWnd;
1086
1087     PMIXER_WINDOW MixerWindow = HeapAlloc(hAppHeap,
1088                                           HEAP_ZERO_MEMORY,
1089                                           sizeof(MIXER_WINDOW));
1090     if (MixerWindow == NULL)
1091     {
1092         return NULL;
1093     }
1094
1095     if (mixerGetNumDevs() > 0)
1096     {
1097         hWnd = CreateWindowEx(WS_EX_WINDOWEDGE | WS_EX_CONTROLPARENT,
1098                               SZ_APP_CLASS,
1099                               lpAppTitle,
1100                               WS_DLGFRAME | WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_VISIBLE,
1101                               0, 0, 300, 315,
1102                               NULL,
1103                               LoadMenu(hAppInstance,
1104                                        MAKEINTRESOURCE(IDM_MAINMENU)),
1105                               hAppInstance,
1106                               MixerWindow);
1107     }
1108     else
1109     {
1110         LPTSTR lpErrMessage;
1111
1112         /*
1113          * no mixer devices are available!
1114          */
1115
1116         hWnd = NULL;
1117         if (AllocAndLoadString(&lpErrMessage,
1118                                hAppInstance,
1119                                IDS_NOMIXERDEVICES))
1120         {
1121             MessageBox(NULL,
1122                        lpErrMessage,
1123                        lpAppTitle,
1124                        MB_ICONINFORMATION);
1125             LocalFree(lpErrMessage);
1126         }
1127     }
1128
1129     if (hWnd == NULL)
1130     {
1131         HeapFree(hAppHeap,
1132                  0,
1133                  MixerWindow);
1134     }
1135
1136     return hWnd;
1137 }
1138
1139 int WINAPI
1140 _tWinMain(HINSTANCE hInstance,
1141           HINSTANCE hPrevInstance,
1142           LPTSTR lpszCmdLine,
1143           int nCmdShow)
1144 {
1145     MSG Msg;
1146     int Ret = 1;
1147     INITCOMMONCONTROLSEX Controls;
1148
1149     UNREFERENCED_PARAMETER(hPrevInstance);
1150         UNREFERENCED_PARAMETER(lpszCmdLine);
1151         UNREFERENCED_PARAMETER(nCmdShow);
1152
1153     hAppInstance = hInstance;
1154     hAppHeap = GetProcessHeap();
1155
1156     if (InitAppConfig())
1157     {
1158         /* load the application title */
1159         if (!AllocAndLoadString(&lpAppTitle,
1160                                 hAppInstance,
1161                                 IDS_SNDVOL32))
1162         {
1163             lpAppTitle = NULL;
1164         }
1165
1166         Controls.dwSize = sizeof(INITCOMMONCONTROLSEX);
1167         Controls.dwICC = ICC_BAR_CLASSES | ICC_STANDARD_CLASSES;
1168
1169         InitCommonControlsEx(&Controls);
1170
1171         if (RegisterApplicationClasses())
1172         {
1173             hMainWnd = CreateApplicationWindow();
1174             if (hMainWnd != NULL)
1175             {
1176                 BOOL bRet;
1177                 while ((bRet =GetMessage(&Msg,
1178                                          NULL,
1179                                          0,
1180                                          0)) != 0)
1181                 {
1182                     if (bRet != -1)
1183                     {
1184                         TranslateMessage(&Msg);
1185                         DispatchMessage(&Msg);
1186                     }
1187                 }
1188
1189                 DestroyWindow(hMainWnd);
1190                 Ret = 0;
1191             }
1192             else
1193             {
1194                 DPRINT("Failed to create application window (LastError: %d)!\n", GetLastError());
1195             }
1196
1197             UnregisterApplicationClasses();
1198         }
1199         else
1200         {
1201             DPRINT("Failed to register application classes (LastError: %d)!\n", GetLastError());
1202         }
1203
1204         if (lpAppTitle != NULL)
1205         {
1206             LocalFree(lpAppTitle);
1207         }
1208
1209         CloseAppConfig();
1210     }
1211     else
1212     {
1213         DPRINT("Unable to open the Volume Control registry key!\n");
1214     }
1215
1216     return Ret;
1217 }