dialog.c

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/*
 * PROJECT:     ReactOS Sound Volume Control
 * LICENSE:     LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
 * PURPOSE:     Dialog control routines
 * COPYRIGHT:   Copyright 2011 Johannes Anderwald <johannes.anderwald@reactos.org>
 *              Copyright 2018-2019 Eric Kohl <eric.kohl@reactos.org>
 *              Copyright 2026 Vitaly Orekhov <vkvo2000@vivaldi.net>
 */
 
#include "sndvol32.h"
 
 
VOID
ConvertRect(LPRECT lpRect, UINT xBaseUnit, UINT yBaseUnit)
{
    lpRect->left = MulDiv(lpRect->left, xBaseUnit, 4);
    lpRect->right = MulDiv(lpRect->right, xBaseUnit, 4);
    lpRect->top = MulDiv(lpRect->top, yBaseUnit, 8);
    lpRect->bottom = MulDiv(lpRect->bottom, yBaseUnit, 8);
}
 
LPVOID
LoadDialogResource(
    IN HMODULE hModule,
    IN LPCWSTR ResourceName,
    OUT LPDWORD ResourceLength)
{
    HRSRC hSrc;
    HGLOBAL hRes;
    PVOID Result;
 
    /* find resource */
    hSrc = FindResourceW(hModule, ResourceName, (LPCWSTR)RT_DIALOG);
 
    if (!hSrc)
    {
        /* failed to find resource */
        return NULL;
    }
 
    /* now load the resource */
    hRes = LoadResource(hAppInstance, hSrc);
    if (!hRes)
    {
        /* failed to load resource */
        return NULL;
    }
 
    /* now lock the resource */
    Result = LockResource(hRes);
 
    if (!Result)
    {
        /* failed to lock resource */
        return NULL;
    }
 
    if (ResourceLength)
    {
        /* store output length */
        *ResourceLength = SizeofResource(hAppInstance, hSrc);
    }
 
    /* done */
    return Result;
}
 
LPWORD
AddDialogControl(
    IN HWND hwndDialog,
    OUT HWND *OutWnd,
    IN LPRECT DialogOffset,
    IN PDLGITEMTEMPLATE DialogItem,
    IN DWORD DialogIdMultiplier,
    IN HFONT hFont,
    IN UINT xBaseUnit,
    IN UINT yBaseUnit,
    IN UINT MixerId)
{
    RECT rect;
    LPWORD Offset;
    LPWSTR ClassName, WindowName;
    WCHAR WindowIdBuf[sizeof("#65535")];
    HWND hwnd;
    DWORD wID;
    INT nSteps, i;
 
    /* initialize client rectangle */
    rect.left = DialogItem->x;
    rect.top = DialogItem->y;
    rect.right = DialogItem->x + DialogItem->cx;
    rect.bottom = DialogItem->y + DialogItem->cy;
 
    /* Convert Dialog units to pixes */
    ConvertRect(&rect, xBaseUnit, yBaseUnit);
 
    rect.left += DialogOffset->left;
    rect.right += DialogOffset->left;
    rect.top += DialogOffset->top;
    rect.bottom += DialogOffset->top;
 
    /* move offset after dialog item */
    Offset = (LPWORD)(DialogItem + 1);
 
    if (*Offset == 0xFFFF)
    {
        /* class is encoded as type */
        Offset++;
 
        /* get control type */
        switch(*Offset)
        {
            case 0x80:
                ClassName = L"button";
                break ;
            case 0x82:
                ClassName = L"static";
                break;
            default:
               /* FIXME */
               assert(0);
               ClassName = NULL;
        }
        Offset++;
    }
    else
    {
        /* class name is encoded as string */
        ClassName = (LPWSTR)(Offset);
 
        /* move offset to the end of class string */
        Offset += wcslen(ClassName) + 1;
    }
 
    if (*Offset == 0xFFFF)
    {
        /* Window name is encoded as ordinal */
        Offset++;
        wsprintf(WindowIdBuf, L"#%u", (DWORD)*Offset);
        WindowName = WindowIdBuf;
        Offset++;
    }
    else
    {
        /* window name is encoded as string */
        WindowName = (LPWSTR)(Offset);
 
        /* move offset to the end of class string */
        Offset += wcslen(WindowName) + 1;
    }
 
    if (DialogItem->id == MAXWORD)
    {
        /* id is not important */
        wID = DialogItem->id;
    }
    else
    {
        /* calculate id */
        wID = DialogItem->id * (DialogIdMultiplier + 1);
 
    }
 
    /* now create the window */
    hwnd = CreateWindowExW(DialogItem->dwExtendedStyle,
                           ClassName,
                           WindowName,
                           DialogItem->style,
                           rect.left,
                           rect.top,
                           rect.right - rect.left,
                           rect.bottom - rect.top,
                           hwndDialog,
                           UlongToPtr(wID),
                           hAppInstance,
                           NULL);
 
    /* sanity check */
    assert(hwnd);
 
    /* store window */
    *OutWnd = hwnd;
 
    /* check if this the track bar */
    if (!_wcsicmp(ClassName, L"msctls_trackbar32"))
    {
        if (DialogItem->style & TBS_VERT)
        {
            /* Vertical trackbar: Volume */
 
            /* Disable the volume trackbar by default */
            EnableWindow(hwnd, FALSE);
 
            /* set up range */
            SendMessage(hwnd, TBM_SETRANGE, (WPARAM)TRUE, (LPARAM)MAKELONG(VOLUME_MIN, VOLUME_MAX));
 
            /* set up page size */
            SendMessage(hwnd, TBM_SETPAGESIZE, 0, (LPARAM)VOLUME_PAGE_SIZE);
 
            /* set position */
            SendMessage(hwnd, TBM_SETPOS, (WPARAM)TRUE, (LPARAM)0);
 
            /* Calculate and set ticks */
            nSteps = (VOLUME_MAX / (VOLUME_TICKS + 1));
            if (VOLUME_MAX % (VOLUME_TICKS + 1) != 0)
                nSteps++;
            for (i = nSteps; i < VOLUME_MAX; i += nSteps)
                SendMessage(hwnd, TBM_SETTIC, 0, (LPARAM)i);
        }
        else
        {
            /* Horizontal trackbar: Balance */
 
            /* Disable the balance trackbar by default */
            EnableWindow(hwnd, FALSE);
 
            /* set up range */
            SendMessage(hwnd, TBM_SETRANGE, (WPARAM)TRUE, (LPARAM)MAKELONG(0, BALANCE_STEPS));
 
            /* set up page size */
            SendMessage(hwnd, TBM_SETPAGESIZE, 0, (LPARAM)BALANCE_PAGE_SIZE);
 
            /* set position */
            SendMessage(hwnd, TBM_SETPOS, (WPARAM)TRUE, (LPARAM)BALANCE_STEPS / 2);
 
            /* Calculate and set ticks */
            nSteps = (BALANCE_STEPS / (BALANCE_TICKS + 1));
            if (BALANCE_STEPS % (BALANCE_TICKS + 1) != 0)
                nSteps++;
            for (i = nSteps; i < BALANCE_STEPS; i += nSteps)
                SendMessage(hwnd, TBM_SETTIC, 0, (LPARAM)i);
        }
    }
    else if (!_wcsicmp(ClassName, L"static"))
    {
        /* Set font */
        SendMessageW(hwnd, WM_SETFONT, (WPARAM)hFont, TRUE);
    }
    else if (!_wcsicmp(ClassName, L"button"))
    {
        if (DialogItem->id == IDC_LINE_SWITCH)
        {
            if (MixerId == PLAY_MIXER)
            {
                /* Disable checkboxes by default, if we are in play mode */
                EnableWindow(hwnd, FALSE);
            }
        }
        else if (DialogItem->id == IDC_LINE_ADVANCED)
        {
            ShowWindow(hwnd, SW_HIDE);
        }
 
        /* Set font */
        SendMessageW(hwnd, WM_SETFONT, (WPARAM)hFont, TRUE);
    }
 
 
    /* check if there is additional data */
    if (*Offset == 0)
    {
        /* no additional data */
        Offset++;
    }
    else
    {
        /* FIXME: Determine whether this should be "Offset += 1 + *Offset" to explicitly skip the data count too. */
        /* skip past additional data */
        Offset += *Offset;
    }
 
    /* make sure next template is word-aligned */
    Offset = (LPWORD)(((ULONG_PTR)Offset + 3) & ~3);
 
    /* done */
    return Offset;
}
 
VOID
LoadDialogControls(
    IN PMIXER_WINDOW MixerWindow,
    LPRECT DialogOffset,
    WORD ItemCount,
    PDLGITEMTEMPLATE DialogItem,
    DWORD DialogIdMultiplier,
    UINT xBaseUnit,
    UINT yBaseUnit)
{
    LPWORD Offset;
    WORD Index;
 
    /* sanity check */
    assert(ItemCount);
 
    if (MixerWindow->Window)
        MixerWindow->Window = (HWND*)HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, MixerWindow->Window, (MixerWindow->WindowCount + ItemCount) * sizeof(HWND));
    else
        MixerWindow->Window = (HWND*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, ItemCount * sizeof(HWND));
    if (!MixerWindow->Window)
    {
        /* no memory */
        return;
    }
 
    /* enumerate now all controls */
    for (Index = 0; Index < ItemCount; Index++)
    {
        /* add controls */
        Offset = AddDialogControl(MixerWindow->hWnd,
                                  &MixerWindow->Window[MixerWindow->WindowCount],
                                  DialogOffset,
                                  DialogItem,
                                  DialogIdMultiplier,
                                  MixerWindow->hFont,
                                  xBaseUnit,
                                  yBaseUnit,
                                  MixerWindow->MixerId);
 
        /* sanity check */
        assert(Offset);
 
        /* move dialog item to new offset */
        DialogItem =(PDLGITEMTEMPLATE)Offset;
 
        /* increment window count */
        MixerWindow->WindowCount++;
    }
}
 
VOID
LoadDialog(
    IN HMODULE hModule,
    IN PMIXER_WINDOW MixerWindow,
    IN LPCWSTR DialogResId,
    IN DWORD Index)
{
    LPDLGTEMPLATE DlgTemplate;
    PDLGITEMTEMPLATE DlgItem;
    RECT dialogRect;
    LPWORD Offset;
    WORD FontSize;
    WCHAR FontName[100];
    SIZE_T Length;
    int width;
 
    DWORD units = GetDialogBaseUnits();
    UINT xBaseUnit = LOWORD(units);
    UINT yBaseUnit = HIWORD(units);
 
    /* first load the dialog resource */
    DlgTemplate = (LPDLGTEMPLATE)LoadDialogResource(hModule, DialogResId, NULL);
    if (!DlgTemplate)
    {
        /* failed to load resource */
        return;
    }
 
    /* Now walk past the dialog header */
    Offset = (LPWORD)(DlgTemplate + 1);
 
    /* FIXME: support menu */
    assert(*Offset == 0);
    Offset++;
 
    /* FIXME: support classes */
    assert(*Offset == 0);
    Offset++;
 
    /* FIXME: support titles */
    assert(*Offset == 0);
    Offset++;
 
    /* get font size */
    FontSize = *Offset;
    Offset++;
 
    /* calculate font length */
    Length = wcslen((LPWSTR)Offset) + 1;
    assert(Length < (sizeof(FontName) / sizeof(WCHAR)));
 
    /* copy font */
    wcscpy(FontName, (LPWSTR)Offset);
 
    if (DlgTemplate->style & DS_SETFONT)
    {
        HDC hDC;
 
        hDC = GetDC(0);
 
        if (!MixerWindow->hFont)
        {
            int pixels = MulDiv(FontSize, GetDeviceCaps(hDC, LOGPIXELSY), 72);
            MixerWindow->hFont = CreateFontW(-pixels, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, FF_DONTCARE, FontName);
        }
 
        if (MixerWindow->hFont)
        {
            SIZE charSize;
            HFONT hOldFont;
 
            hOldFont = SelectObject(hDC, MixerWindow->hFont);
            charSize.cx = GdiGetCharDimensions(hDC, NULL, &charSize.cy);
            if (charSize.cx)
            {
                xBaseUnit = charSize.cx;
                yBaseUnit = charSize.cy;
            }
            SelectObject(hDC, hOldFont);
 
            MixerWindow->baseUnit.cx = charSize.cx;
            MixerWindow->baseUnit.cy = charSize.cy;
        }
 
        ReleaseDC(NULL, hDC);
    }
 
//    assert(MixerWindow->hFont);
 
    /* move offset after font name */
    Offset += Length;
 
    /* offset is now at first dialog item control */
    DlgItem = (PDLGITEMTEMPLATE)Offset;
 
    dialogRect.left = 0;
    dialogRect.right = DlgTemplate->cx;
    dialogRect.top = 0;
    dialogRect.bottom = DlgTemplate->cy;
 
    ConvertRect(&dialogRect, xBaseUnit, yBaseUnit);
 
    width = dialogRect.right - dialogRect.left;
 
    dialogRect.left += MixerWindow->rect.right;
    dialogRect.right += MixerWindow->rect.right;
    dialogRect.top += MixerWindow->rect.top;
    dialogRect.bottom += MixerWindow->rect.top;
 
    MixerWindow->rect.right += width;
    if ((dialogRect.bottom - dialogRect.top) > (MixerWindow->rect.bottom - MixerWindow->rect.top))
        MixerWindow->rect.bottom = MixerWindow->rect.top + dialogRect.bottom - dialogRect.top;
 
    /* now add the controls */
    LoadDialogControls(MixerWindow, &dialogRect, DlgTemplate->cdit, DlgItem, Index, xBaseUnit, yBaseUnit);
}
 
BOOL
CALLBACK
EnumConnectionsCallback(
    PSND_MIXER Mixer,
    DWORD LineID,
    LPMIXERLINE Line,
    PVOID Context)
{
    WCHAR LineName[MIXER_LONG_NAME_CHARS];
    DWORD Flags;
    DWORD wID;
    UINT ControlCount = 0, Index;
    LPMIXERCONTROL Control = NULL;
    HWND hDlgCtrl;
    PMIXERCONTROLDETAILS_UNSIGNED pVolumeDetails = NULL;
    PPREFERENCES_CONTEXT PrefContext = (PPREFERENCES_CONTEXT)Context;
 
    if (Line->cControls == 0)
        return TRUE;
 
    /* get line name */
    if (SndMixerGetLineName(PrefContext->MixerWindow->Mixer, PrefContext->SelectedLine, LineName, MIXER_LONG_NAME_CHARS, TRUE) == -1)
    {
        /* failed to get line name */
        LineName[0] = L'\0';
    }
 
    pVolumeDetails = HeapAlloc(GetProcessHeap(),
                               0,
                               Line->cChannels * sizeof(MIXERCONTROLDETAILS_UNSIGNED));
    if (pVolumeDetails == NULL)
        goto done;
 
    /* check if line is found in registry settings */
    if (ReadLineConfig(PrefContext->DeviceName,
                       LineName,
                       Line->szName,
                       &Flags))
    {
          /* is it selected */
          if (Flags != 0x4)
          {
              int dlgId;
 
              if ((Line->dwComponentType == MIXERLINE_COMPONENTTYPE_DST_SPEAKERS) ||
                  (Line->dwComponentType == MIXERLINE_COMPONENTTYPE_DST_HEADPHONES))
                  dlgId = (PrefContext->MixerWindow->Mode == SMALL_MODE) ? IDD_SMALL_MASTER : IDD_NORMAL_MASTER;
              else
                  dlgId = (PrefContext->MixerWindow->Mode == SMALL_MODE) ? IDD_SMALL_LINE : IDD_NORMAL_LINE;
 
              /* load dialog resource */
              LoadDialog(hAppInstance, PrefContext->MixerWindow, MAKEINTRESOURCE(dlgId), PrefContext->MixerWindow->DialogCount);
 
              /* get id */
              wID = (PrefContext->MixerWindow->DialogCount + 1) * IDC_LINE_NAME;
 
              /* set line name */
              SetDlgItemTextW(PrefContext->MixerWindow->hWnd, wID, Line->szName);
 
              /* query controls */
              if (SndMixerQueryControls(Mixer, &ControlCount, Line, &Control) != FALSE)
              {
                  /* now go through all controls and update their states */
                  for (Index = 0; Index < Line->cControls; Index++)
                  {
                      if (Control[Index].dwControlType == MIXERCONTROL_CONTROLTYPE_MUTE)
                      {
                          MIXERCONTROLDETAILS_BOOLEAN Details;
 
                          /* get volume control details */
                          if (SndMixerGetVolumeControlDetails(Mixer, Control[Index].dwControlID, 1, sizeof(MIXERCONTROLDETAILS_BOOLEAN), (LPVOID)&Details) != -1)
                          {
                              /* update dialog control */
                              wID = (PrefContext->MixerWindow->DialogCount + 1) * IDC_LINE_SWITCH;
 
                              /* get dialog control */
                              hDlgCtrl = GetDlgItem(PrefContext->MixerWindow->hWnd, wID);
 
                              if (hDlgCtrl != NULL)
                              {
                                  /* Enable the 'Mute' checkbox, if we are in play mode */
                                  if (Mixer->MixerId == PLAY_MIXER)
                                      EnableWindow(hDlgCtrl, TRUE);
 
                                  /* check state */
                                  if (SendMessageW(hDlgCtrl, BM_GETCHECK, 0, 0) != Details.fValue)
                                  {
                                      /* update control state */
                                      SendMessageW(hDlgCtrl, BM_SETCHECK, (WPARAM)Details.fValue, 0);
                                  }
                              }
                          }
                      }
                      else if (Control[Index].dwControlType == MIXERCONTROL_CONTROLTYPE_VOLUME)
                      {
                          /* get volume control details */
                          if (SndMixerGetVolumeControlDetails(Mixer, Control[Index].dwControlID, Line->cChannels, sizeof(MIXERCONTROLDETAILS_UNSIGNED), (LPVOID)pVolumeDetails) != -1)
                          {
                              /* update dialog control */
                              DWORD volumePosition, volumeStep, maxVolume, i;
                              DWORD balancePosition, balanceStep;
 
                              volumeStep = (Control[Index].Bounds.dwMaximum - Control[Index].Bounds.dwMinimum) / (VOLUME_MAX - VOLUME_MIN);
 
                              maxVolume = 0;
                              for (i = 0; i < Line->cChannels; i++)
                              {
                                  if (pVolumeDetails[i].dwValue > maxVolume)
                                      maxVolume = pVolumeDetails[i].dwValue;
                              }
 
                              volumePosition = (maxVolume - Control[Index].Bounds.dwMinimum) / volumeStep;
 
                              if (Line->cChannels == 1)
                              {
                                  balancePosition = BALANCE_CENTER;
                              }
                              else if (Line->cChannels == 2)
                              {
                                  if (pVolumeDetails[0].dwValue == pVolumeDetails[1].dwValue)
                                  {
                                      balancePosition = BALANCE_CENTER;
                                  }
                                  else if (pVolumeDetails[0].dwValue == Control[Index].Bounds.dwMinimum)
                                  {
                                      balancePosition = BALANCE_RIGHT;
                                  }
                                  else if (pVolumeDetails[1].dwValue == Control[Index].Bounds.dwMinimum)
                                  {
                                      balancePosition = BALANCE_LEFT;
                                  }
                                  else
                                  {
                                      balanceStep = (maxVolume - Control[Index].Bounds.dwMinimum) / (BALANCE_STEPS / 2);
 
                                      if (pVolumeDetails[0].dwValue < pVolumeDetails[1].dwValue)
                                      {
                                          balancePosition = (pVolumeDetails[0].dwValue - Control[Index].Bounds.dwMinimum) / balanceStep;
                                          balancePosition = BALANCE_RIGHT - balancePosition;
                                      }
                                      else if (pVolumeDetails[1].dwValue < pVolumeDetails[0].dwValue)
                                      {
                                          balancePosition = (pVolumeDetails[1].dwValue - Control[Index].Bounds.dwMinimum) / balanceStep;
                                          balancePosition = BALANCE_LEFT + balancePosition;
                                      }
                                  }
                              }
 
                              /* Set the volume trackbar */
                              wID = (PrefContext->MixerWindow->DialogCount + 1) * IDC_LINE_SLIDER_VERT;
 
                              /* get dialog control */
                              hDlgCtrl = GetDlgItem(PrefContext->MixerWindow->hWnd, wID);
 
                              if (hDlgCtrl != NULL)
                              {
                                  /* check state */
                                  LRESULT OldPosition = SendMessageW(hDlgCtrl, TBM_GETPOS, 0, 0);
 
                                  /* Enable the volume trackbar */
                                  EnableWindow(hDlgCtrl, TRUE);
 
                                  if (OldPosition != (VOLUME_MAX - volumePosition))
                                  {
                                      /* update control state */
                                      SendMessageW(hDlgCtrl, TBM_SETPOS, (WPARAM)TRUE, VOLUME_MAX - volumePosition);
                                  }
                              }
 
                              if (Line->cChannels == 2)
                              {
                                  /* Set the balance trackbar */
                                  wID = (PrefContext->MixerWindow->DialogCount + 1) * IDC_LINE_SLIDER_HORZ;
 
                                  /* get dialog control */
                                  hDlgCtrl = GetDlgItem(PrefContext->MixerWindow->hWnd, wID);
 
                                  if (hDlgCtrl != NULL)
                                  {
                                      /* check state */
                                      LRESULT OldPosition = SendMessageW(hDlgCtrl, TBM_GETPOS, 0, 0);
 
                                      /* Enable the balance trackbar */
                                      EnableWindow(hDlgCtrl, TRUE);
 
                                      if (OldPosition != balancePosition)
                                      {
                                          /* update control state */
                                          SendMessageW(hDlgCtrl, TBM_SETPOS, (WPARAM)TRUE, balancePosition);
                                      }
                                  }
                              }
                          }
                      }
                      else
                      {
                          if (PrefContext->MixerWindow->Mode == NORMAL_MODE)
                          {
                              PrefContext->MixerWindow->bHasExtendedControls = TRUE;
 
                              wID = (PrefContext->MixerWindow->DialogCount + 1) * IDC_LINE_ADVANCED;
 
                              /* get dialog control */
                              hDlgCtrl = GetDlgItem(PrefContext->MixerWindow->hWnd, wID);
                              if (hDlgCtrl != NULL)
                              {
                                  ShowWindow(hDlgCtrl,
                                             PrefContext->MixerWindow->bShowExtendedControls ? SW_SHOWNORMAL : SW_HIDE);
                              }
                          }
                      }
                  }
 
                  /* free controls */
                  HeapFree(GetProcessHeap(), 0, Control);
              }
 
              /* increment dialog count */
              PrefContext->MixerWindow->DialogCount++;
          }
    }
 
done:
    /* Free the volume details */
    if (pVolumeDetails)
        HeapFree(GetProcessHeap(), 0, pVolumeDetails);
 
    return TRUE;
}
 
VOID
LoadDialogCtrls(
    PPREFERENCES_CONTEXT PrefContext)
{
    WCHAR szBuffer[64];
    HWND hDlgCtrl;
    RECT statusRect;
    UINT i;
    LONG dy;
 
    /* set dialog count to zero */
    PrefContext->MixerWindow->DialogCount = 0;
    PrefContext->MixerWindow->bHasExtendedControls = FALSE;
    SetRectEmpty(&PrefContext->MixerWindow->rect);
 
    /* enumerate controls */
    SndMixerEnumConnections(PrefContext->MixerWindow->Mixer, PrefContext->SelectedLine, EnumConnectionsCallback, (PVOID)PrefContext);
 
    /* Update the 'Advanced Controls' menu item */
    EnableMenuItem(GetMenu(PrefContext->MixerWindow->hWnd),
                   IDM_ADVANCED_CONTROLS,
                   MF_BYCOMMAND | (PrefContext->MixerWindow->bHasExtendedControls ? MF_ENABLED : MF_GRAYED));
 
    /* Add some height for the status bar */
    if (PrefContext->MixerWindow->hStatusBar)
    {
        GetWindowRect(PrefContext->MixerWindow->hStatusBar, &statusRect);
        PrefContext->MixerWindow->rect.bottom += (statusRect.bottom - statusRect.top);
    }
 
    /* Add height of the 'Advanced' button */
    dy = MulDiv(ADVANCED_BUTTON_HEIGHT, PrefContext->MixerWindow->baseUnit.cy, 8);
    if (PrefContext->MixerWindow->bShowExtendedControls && PrefContext->MixerWindow->bHasExtendedControls)
        PrefContext->MixerWindow->rect.bottom += dy;
 
    /* now move the window */
    AdjustWindowRect(&PrefContext->MixerWindow->rect, WS_DLGFRAME | WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU | WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_VISIBLE, TRUE);
    SetWindowPos(PrefContext->MixerWindow->hWnd, HWND_TOP, PrefContext->MixerWindow->rect.left, PrefContext->MixerWindow->rect.top, PrefContext->MixerWindow->rect.right - PrefContext->MixerWindow->rect.left, PrefContext->MixerWindow->rect.bottom - PrefContext->MixerWindow->rect.top, SWP_NOMOVE | SWP_NOZORDER);
 
    /* Move the status bar */
    if (PrefContext->MixerWindow->hStatusBar)
    {
        SetWindowPos(PrefContext->MixerWindow->hStatusBar,
                     HWND_TOP,
                     statusRect.left,
                     PrefContext->MixerWindow->rect.bottom - (statusRect.bottom - statusRect.top),
                     PrefContext->MixerWindow->rect.right - PrefContext->MixerWindow->rect.left,
                     statusRect.bottom - statusRect.top,
                     SWP_NOZORDER);
    }
 
    if (PrefContext->MixerWindow->MixerId == RECORD_MIXER)
        LoadStringW(hAppInstance, IDS_SELECT, szBuffer, ARRAYSIZE(szBuffer));
 
    for (i = 0; i < PrefContext->MixerWindow->DialogCount; i++)
    {
        if (PrefContext->MixerWindow->MixerId == RECORD_MIXER)
        {
            hDlgCtrl = GetDlgItem(PrefContext->MixerWindow->hWnd, (i + 1) * IDC_LINE_SWITCH);
 
            /* Turn the autocheckbox into a checkbox */
            SetWindowLongPtr(hDlgCtrl, GWL_STYLE, (GetWindowLongPtr(hDlgCtrl, GWL_STYLE) & ~BS_AUTOCHECKBOX) | BS_CHECKBOX);
 
            /* Change text from 'Mute' to 'Select' */
            SetWindowTextW(hDlgCtrl, szBuffer);
        }
 
        /* Resize the vertical line separator */
        hDlgCtrl = GetDlgItem(PrefContext->MixerWindow->hWnd, (i + 1) * IDC_LINE_SEP);
        if (hDlgCtrl != NULL)
        {
            GetWindowRect(hDlgCtrl, &statusRect);
            if (PrefContext->MixerWindow->bShowExtendedControls && PrefContext->MixerWindow->bHasExtendedControls)
                statusRect.bottom += dy;
 
            SetWindowPos(hDlgCtrl,
                         HWND_TOP,
                         0,
                         0,
                         statusRect.right - statusRect.left,
                         statusRect.bottom - statusRect.top,
                         SWP_NOMOVE | SWP_NOZORDER);
        }
    }
 
    /* Hide the last line separator */
    hDlgCtrl = GetDlgItem(PrefContext->MixerWindow->hWnd, IDC_LINE_SEP * PrefContext->MixerWindow->DialogCount);
    if (hDlgCtrl != NULL)
    {
        ShowWindow(hDlgCtrl, SW_HIDE);
    }
}
 
HWND
GetLineDialogControl(
    PPREFERENCES_CONTEXT PrefContext,
    LPMIXERLINE Line,
    DWORD dwDialogID)
{
    DWORD Index;
 
    /* find the index of this line */
    for (Index = 0; Index < PrefContext->MixerWindow->DialogCount; Index++)
    {
        /* get id */
        WCHAR LineName[MIXER_LONG_NAME_CHARS];
        DWORD wID = (Index + 1) * IDC_LINE_NAME;
 
        if (GetDlgItemText(PrefContext->MixerWindow->hWnd, wID, LineName, MIXER_LONG_NAME_CHARS) == 0)
        {
            /* failed to retrieve id */
            continue;
        }
 
        /* check if the line name matches */
        if (!_wcsicmp(LineName, Line->szName))
        {
            /* found matching line name */
            wID = (Index + 1) * dwDialogID;
 
            return GetDlgItem(PrefContext->MixerWindow->hWnd, wID);
        }
    }
 
    return NULL;
}
 
VOID
UpdateDialogLineSwitchControl(
    PPREFERENCES_CONTEXT PrefContext,
    LPMIXERLINE Line,
    LONG fValue)
{
    HWND hDlgCtrl = GetLineDialogControl(PrefContext, Line, IDC_LINE_SWITCH);
 
    if (hDlgCtrl != NULL && SendMessageW(hDlgCtrl, BM_GETCHECK, 0, 0) != fValue)
        SendMessageW(hDlgCtrl, BM_SETCHECK, (WPARAM)fValue, 0);
}
 
DWORD
GetDialogLineSliderCurrentPosition(
    PPREFERENCES_CONTEXT PrefContext,
    LPMIXERLINE Line,
    DWORD dwDialogID)
{
    HWND hDlgCtrl = GetLineDialogControl(PrefContext, Line, dwDialogID);
 
    return hDlgCtrl != NULL
        ? SendMessageW(hDlgCtrl, TBM_GETPOS, 0, 0)
        : 0;
}
 
VOID
UpdateDialogLineSliderControl(
    PPREFERENCES_CONTEXT PrefContext,
    LPMIXERLINE Line,
    DWORD dwDialogID,
    DWORD Position)
{
    HWND hDlgCtrl = GetLineDialogControl(PrefContext, Line, dwDialogID);
    BOOL isPositionChanged = GetDialogLineSliderCurrentPosition(PrefContext, Line, dwDialogID) != Position;
 
    if (hDlgCtrl != NULL && isPositionChanged)
        SendMessageW(hDlgCtrl, TBM_SETPOS, (WPARAM)TRUE, Position);
}