Source code of Windows XP (NT5)
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/*****************************************************************************
*
* Component: sndvol32.exe
* File: choice.c
* Purpose: properties dialog box code
*
* Copyright (c) 1985-1999 Microsoft Corporation
*
*****************************************************************************/
#include <windows.h>
#include <windowsx.h>
#include <mmsystem.h>
#include <commctrl.h>
#include "volids.h"
#include "volumei.h"
#include "utils.h"
typedef struct t_DEVICEPROP {
BOOL fMixer; // is mixer
UINT uDeviceID; // device ID
DWORD dwPlayback; // mixerline representing playback
DWORD dwRecording; // mixerline representing recording
MIXERCAPS mxcaps;
} DEVICEPROP, *PDEVICEPROP;
typedef struct t_PRIVPROP {
PMIXUIDIALOG pmxud; // app instance data
PDEVICEPROP adp; // array of allocated device props
PDEVICEPROP pdpCurSel; // current device selection
DWORD dwDestSel; // last destination selection
PVOLCTRLDESC avcd;
DWORD cvcd;
// in/out params
UINT uDeviceID;
BOOL fMixer;
DWORD dwDestination;
DWORD dwStyle;
} PRIVPROP, *PPRIVPROP;
#define PROPATOM TEXT("privprop")
const TCHAR gszPropAtom[] = PROPATOM;
#define SETPROP(x,y) SetProp((x), gszPropAtom, (HANDLE)(y))
#define GETPROP(x) (PPRIVPROP)GetProp((x), gszPropAtom)
#define REMOVEPROP(x) RemoveProp(x,gszPropAtom)
void SetCheckState (HWND hwndLV, int nItem, BOOL bCheck)
{
LVITEM item;
int nCheck = bCheck ? 2 : 1; // one based index
ZeroMemory (&item, sizeof (item));
item.mask = LVIF_STATE;
item.iItem = nItem;
item.stateMask = LVIS_STATEIMAGEMASK;
item.state = INDEXTOSTATEIMAGEMASK (nCheck);
ListView_SetItem (hwndLV, &item);
}
void EnableOk(
HWND hwnd,
BOOL fEnable)
{
HWND hOk, hCancel;
BOOL fWasEnabled;
hOk = GetDlgItem(hwnd,IDOK);
hCancel = GetDlgItem(hwnd,IDCANCEL);
fWasEnabled = IsWindowEnabled(hOk);
if (!fEnable && fWasEnabled)
{
Button_SetStyle(hOk, BS_PUSHBUTTON, TRUE);
SendMessage(hwnd, DM_SETDEFID, IDCANCEL, 0L);
EnableWindow(hOk, FALSE);
}
else if (fEnable && !fWasEnabled)
{
EnableWindow(hOk, TRUE);
Button_SetStyle(hCancel, BS_PUSHBUTTON, TRUE);
SendMessage(hwnd, DM_SETDEFID, IDOK, 0L);
}
}
void Properties_GroupEnable(
HWND hwnd,
const int ids[],
int cids,
BOOL fEnable)
{
int i;
for (i = 0; i < cids; i++)
EnableWindow(GetDlgItem(hwnd, ids[i]), fEnable);
}
void Properties_Enable_Prop_Volumes(
HWND hwnd,
BOOL fEnable)
{
const int ids[] = {
IDC_PROP_VOLUMES,
IDC_PROP_PLAYBACK,
IDC_PROP_RECORDING,
IDC_PROP_OTHER,
IDC_PROP_OTHERLIST
};
if (!fEnable)
ComboBox_SetCurSel(GetDlgItem(hwnd, IDC_PROP_OTHERLIST), -1);
Properties_GroupEnable(hwnd, ids, SIZEOF(ids), fEnable);
}
void Properties_Enable_PROP_DEVICELIST(
HWND hwnd,
BOOL fEnable)
{
const int ids[] = {
IDC_PROP_TXT1,
IDC_PROP_DEVICELIST,
};
if (!fEnable)
ComboBox_SetCurSel(GetDlgItem(hwnd, IDC_PROP_OTHERLIST), -1);
Properties_GroupEnable(hwnd, ids, SIZEOF(ids), fEnable);
}
void Properties_Enable_PROP_VOLUMELIST(
HWND hwnd,
BOOL fEnable)
{
const int ids[] = {
IDC_PROP_TXT2,
IDC_PROP_VOLUMELIST,
};
Properties_GroupEnable(hwnd, ids, SIZEOF(ids), fEnable);
}
void Properties_CommitState(
PPRIVPROP ppr,
HWND hlb)
{
DWORD i;
DWORD cItems = ListView_GetItemCount(hlb);
if (!ppr->avcd)
return;
for (i=0;i<cItems;i++)
{
LV_ITEM lvi;
lvi.iItem = i;
lvi.iSubItem = 0;
lvi.mask = LVIF_PARAM;
if (ListView_GetItem(hlb, &lvi))
{
ppr->avcd[lvi.lParam].dwSupport = (ListView_GetCheckState (hlb, i))?0:VCD_SUPPORTF_HIDDEN;
}
}
Volume_GetSetRegistryLineStates(ppr->pdpCurSel->mxcaps.szPname
, ppr->avcd[0].szShortName
, ppr->avcd
, ppr->cvcd
, SET );
Mixer_CleanupVolumeDescription(ppr->avcd, ppr->cvcd);
GlobalFreePtr(ppr->avcd);
ppr->avcd = NULL;
ppr->cvcd = 0L;
}
/*
* Init the destination type groupbox
*
* */
BOOL Properties_Init_Prop_Volumes(
PPRIVPROP ppr,
HWND hwnd)
{
HWND hPlay = GetDlgItem(hwnd, IDC_PROP_PLAYBACK);
HWND hRec = GetDlgItem(hwnd, IDC_PROP_RECORDING);
HWND hOther = GetDlgItem(hwnd, IDC_PROP_OTHER);
HWND hOtherList = GetDlgItem(hwnd, IDC_PROP_OTHERLIST);
DWORD iDest, cDest;
BOOL fPlay = FALSE, fRec = FALSE;
if (!ppr->pdpCurSel->fMixer)
return FALSE;
ComboBox_ResetContent(hOtherList);
cDest = ppr->pdpCurSel->mxcaps.cDestinations;
EnableWindow(hPlay, FALSE);
EnableWindow(hRec, FALSE);
EnableWindow(hOther, FALSE);
for (iDest = 0; iDest < cDest; iDest++)
{
MIXERLINE mlDst;
int imx;
mlDst.cbStruct = sizeof ( mlDst );
mlDst.dwDestination = iDest;
if (mixerGetLineInfo((HMIXEROBJ)UIntToPtr(ppr->pdpCurSel->uDeviceID)
, &mlDst
, MIXER_GETLINEINFOF_DESTINATION)
!= MMSYSERR_NOERROR)
continue;
//
// Conditionally enable selections. The first type for Play and
// Record are the default Playback and Recording radiobuttons.
// The next occurence of the same type is heaped into the Other
// category.
//
if (mlDst.dwComponentType == MIXERLINE_COMPONENTTYPE_DST_SPEAKERS
&& !fPlay)
{
EnableWindow(hPlay, TRUE);
if (iDest == ppr->dwDestSel)
CheckRadioButton(hwnd, IDC_PROP_PLAYBACK, IDC_PROP_OTHER
, IDC_PROP_PLAYBACK);
ppr->pdpCurSel->dwPlayback = iDest;
fPlay = TRUE;
}
else if (mlDst.dwComponentType == MIXERLINE_COMPONENTTYPE_DST_WAVEIN
&& !fRec)
{
EnableWindow(hRec, TRUE);
if (iDest == ppr->dwDestSel)
CheckRadioButton(hwnd, IDC_PROP_PLAYBACK, IDC_PROP_OTHER
, IDC_PROP_RECORDING);
ppr->pdpCurSel->dwRecording = iDest;
fRec = TRUE;
}
else
{
EnableWindow(hOther, TRUE);
imx = ComboBox_AddString(hOtherList, mlDst.szName);
ComboBox_SetItemData(hOtherList, imx, iDest);
if (iDest == ppr->dwDestSel)
{
CheckRadioButton(hwnd, IDC_PROP_PLAYBACK, IDC_PROP_OTHER
, IDC_PROP_OTHER);
ComboBox_SetCurSel(hOtherList, imx);
}
}
}
//
// Disable the "other" drop down if its not selected
//
if (!IsDlgButtonChecked(hwnd, IDC_PROP_OTHER))
{
ComboBox_SetCurSel(hOtherList, 0);
EnableWindow(hOtherList, FALSE);
}
return TRUE;
}
BOOL Properties_Init_PROP_VOLUMELIST(
PPRIVPROP ppr,
HWND hwnd)
{
HWND hlb = GetDlgItem(hwnd, IDC_PROP_VOLUMELIST);
LV_COLUMN col = {LVCF_FMT | LVCF_WIDTH, LVCFMT_LEFT};
RECT rc;
BOOL fSet = FALSE;
PVOLCTRLDESC avcd = NULL;
DWORD cvcd = 0L;
DWORD ivcd;
int ilvi;
LV_ITEM lvi;
ListView_DeleteAllItems(hlb);
ListView_SetExtendedListViewStyleEx (hlb, LVS_EX_CHECKBOXES, LVS_EX_CHECKBOXES);
ZeroMemory (&lvi, sizeof (lvi));
GetClientRect(hlb, &rc);
col.cx = rc.right - 2 * GetSystemMetrics(SM_CXEDGE);
ListView_InsertColumn(hlb, 0, &col);
if (ppr->avcd)
{
if (ppr->pdpCurSel->fMixer)
Mixer_CleanupVolumeDescription(ppr->avcd, ppr->cvcd);
// else
// Nonmixer_CleanupVolumeDescription(ppr->avcd, ppr->cvcd);
GlobalFreePtr(ppr->avcd);
ppr->avcd = NULL;
ppr->cvcd = 0L;
}
if (ppr->pdpCurSel->fMixer)
{
HMIXER hmx;
MMRESULT mmr;
//
// Mixer API's are much more efficient with mixer handle...
//
mmr = mixerOpen(&hmx
, ppr->pdpCurSel->uDeviceID
, 0L
, 0L
, MIXER_OBJECTF_MIXER);
if(MMSYSERR_NOERROR == mmr)
{
avcd = Mixer_CreateVolumeDescription((HMIXEROBJ)hmx
, ppr->dwDestSel
, &cvcd);
mixerClose(hmx);
}
else
{
avcd = Mixer_CreateVolumeDescription((HMIXEROBJ)UIntToPtr(ppr->pdpCurSel->uDeviceID)
, ppr->dwDestSel
, &cvcd);
}
}
else
{
avcd = Nonmixer_CreateVolumeDescription(ppr->dwDestSel
, &cvcd);
}
if (avcd)
{
BOOL fFirstRun;
//
// Restore hidden state
//
fFirstRun = !Volume_GetSetRegistryLineStates(ppr->pdpCurSel->mxcaps.szPname
, avcd[0].szShortName
, avcd
, cvcd
, GET );
if (fFirstRun)
{
for (ivcd = 0; ivcd < cvcd; ivcd++)
{
if (!(avcd[ivcd].dwSupport & VCD_SUPPORTF_DEFAULT))
avcd[ivcd].dwSupport |= VCD_SUPPORTF_HIDDEN;
}
Volume_GetSetRegistryLineStates(ppr->pdpCurSel->mxcaps.szPname
, avcd[0].szShortName
, avcd
, cvcd
, SET);
}
for (ivcd = 0, ilvi = 0; ivcd < cvcd; ivcd++)
{
if (!(avcd[ivcd].dwSupport & VCD_SUPPORTF_VISIBLE))
continue;
lvi.iItem = ilvi;
lvi.iSubItem = 0;
lvi.mask = LVIF_TEXT|LVIF_PARAM;
lvi.lParam = ivcd;
lvi.pszText = avcd[ivcd].szName;
ListView_InsertItem(hlb, &lvi);
if (!(avcd[ivcd].dwSupport & VCD_SUPPORTF_HIDDEN))
{
fSet = TRUE;
SetCheckState (hlb, ilvi, TRUE);
}
ilvi++;
}
ppr->avcd = avcd;
ppr->cvcd = cvcd;
}
ListView_SetItemState(hlb, 0, TRUE, LVIS_FOCUSED);
EnableOk(hwnd, fSet);
return TRUE;
}
/*
* Init the list of devices.
*
* */
BOOL Properties_Init_PROP_DEVICELIST(
PPRIVPROP ppr,
HWND hwnd)
{
HWND hlb = GetDlgItem(hwnd, IDC_PROP_DEVICELIST);
int iMixer;
int cValidMixers = 0;
int cMixers;
cMixers = mixerGetNumDevs();
if (!cMixers)
return FALSE;
ppr->adp = (PDEVICEPROP)GlobalAllocPtr(GHND,cMixers * sizeof(DEVICEPROP));
if (ppr->adp == NULL)
return FALSE;
for (iMixer = 0; iMixer < cMixers; iMixer++)
{
int imx;
MIXERCAPS* pmxcaps = &ppr->adp[iMixer].mxcaps;
MMRESULT mmr;
mmr = mixerGetDevCaps(iMixer, pmxcaps, sizeof(MIXERCAPS));
if (mmr != MMSYSERR_NOERROR)
continue;
cValidMixers++;
imx = ComboBox_AddString(hlb, pmxcaps->szPname);
ppr->adp[iMixer].uDeviceID = iMixer;
ppr->adp[iMixer].fMixer = TRUE;
ComboBox_SetItemData(hlb, imx, &ppr->adp[iMixer]);
}
if (cValidMixers == 0)
return FALSE;
return TRUE;
}
BOOL Properties_OnCommand(
HWND hwnd,
int id,
HWND hctl,
UINT unotify)
{
PPRIVPROP ppr = GETPROP(hwnd);
if (!ppr)
return FALSE;
switch (id)
{
case IDC_PROP_DEVICELIST:
if (unotify == CBN_SELCHANGE)
{
int imx;
PDEVICEPROP pdp;
imx = ComboBox_GetCurSel(hctl);
pdp = (PDEVICEPROP)ComboBox_GetItemData(hctl, imx);
if (pdp == ppr->pdpCurSel)
break;
ppr->pdpCurSel = pdp;
if (ppr->pdpCurSel->fMixer)
Properties_Init_Prop_Volumes(ppr, hwnd);
else
Properties_Enable_Prop_Volumes(hwnd, FALSE);
Properties_Init_PROP_VOLUMELIST(ppr, hwnd);
}
break;
case IDC_PROP_PLAYBACK:
EnableWindow(GetDlgItem(hwnd, IDC_PROP_OTHERLIST), FALSE);
if (ppr->dwDestSel == ppr->pdpCurSel->dwPlayback)
break;
ppr->dwDestSel = ppr->pdpCurSel->dwPlayback;
Properties_Init_PROP_VOLUMELIST(ppr, hwnd);
break;
case IDC_PROP_RECORDING:
EnableWindow(GetDlgItem(hwnd, IDC_PROP_OTHERLIST), FALSE);
if (ppr->dwDestSel == ppr->pdpCurSel->dwRecording)
break;
ppr->dwDestSel = ppr->pdpCurSel->dwRecording;
Properties_Init_PROP_VOLUMELIST(ppr, hwnd);
break;
case IDC_PROP_OTHER:
{
HWND hol;
DWORD dwSel;
hol = GetDlgItem(hwnd, IDC_PROP_OTHERLIST);
EnableWindow(hol, TRUE);
ComboBox_SetCurSel(hol, 0);
dwSel = (DWORD)ComboBox_GetItemData(hol, 0);
if (ppr->dwDestSel == dwSel)
break;
ppr->dwDestSel = dwSel;
Properties_Init_PROP_VOLUMELIST(ppr, hwnd);
break;
}
case IDC_PROP_OTHERLIST:
if (unotify == CBN_SELCHANGE)
{
int idst;
DWORD dwSel;
idst = ComboBox_GetCurSel(hctl);
dwSel = (DWORD)ComboBox_GetItemData(hctl, idst);
if (ppr->dwDestSel == dwSel)
break;
ppr->dwDestSel = dwSel;
Properties_Init_PROP_VOLUMELIST(ppr, hwnd);
}
break;
case IDOK:
//
// Save out to registry for restaring.
//
Properties_CommitState(ppr, GetDlgItem(hwnd, IDC_PROP_VOLUMELIST));
ppr->uDeviceID = ppr->pdpCurSel->uDeviceID;
ppr->fMixer = TRUE;
ppr->dwDestination = ppr->dwDestSel;
EndDialog(hwnd, TRUE);
break;
case IDCANCEL:
Mixer_CleanupVolumeDescription(ppr->avcd, ppr->cvcd);
if (ppr->avcd)
{
GlobalFreePtr(ppr->avcd);
ppr->avcd = NULL;
ppr->cvcd = 0L;
}
EndDialog(hwnd, FALSE);
break;
}
return FALSE;
}
/*
* Initialize the dialog
*
* */
BOOL Properties_OnInitDialog(
HWND hwnd,
HWND hwndFocus,
LPARAM lParam)
{
PPRIVPROP ppr;
BOOL fEnable = TRUE;
HWND hlv;
SETPROP(hwnd, (PPRIVPROP)lParam);
ppr = GETPROP(hwnd);
if (!ppr)
fEnable = FALSE;
if (fEnable)
fEnable = Properties_Init_PROP_DEVICELIST(ppr, hwnd);
hlv = GetDlgItem(hwnd, IDC_PROP_VOLUMELIST);
if (!fEnable)
{
//
// Bad state, disable everything except cancel
//
Properties_Enable_PROP_DEVICELIST(hwnd, FALSE);
Properties_Enable_Prop_Volumes(hwnd, FALSE);
Properties_Enable_PROP_VOLUMELIST(hwnd, FALSE);
EnableOk(hwnd, FALSE);
return FALSE;
}
else
{
int i;
PDEVICEPROP pdp;
HWND hdl;
//
// make intial device selection
//
hdl = GetDlgItem(hwnd, IDC_PROP_DEVICELIST);
ppr->dwDestSel = 0;
ComboBox_SetCurSel(hdl, 0);
ppr->pdpCurSel = (PDEVICEPROP)ComboBox_GetItemData(hdl, 0);
i = ComboBox_GetCount(hdl);
for (; i > 0 ; i-- )
{
pdp = (PDEVICEPROP)ComboBox_GetItemData(hdl,i-1);
//
// if things match up, then set the init data
//
if (pdp->uDeviceID == ppr->uDeviceID
&& pdp->fMixer == ppr->fMixer)
{
ppr->pdpCurSel = pdp;
ComboBox_SetCurSel(hdl, i-1);
ppr->dwDestSel = ppr->dwDestination;
break;
}
}
}
Properties_Init_Prop_Volumes(ppr, hwnd);
Properties_Init_PROP_VOLUMELIST(ppr, hwnd);
return FALSE;
}
INT_PTR CALLBACK Properties_Proc(
HWND hwnd,
UINT msg,
WPARAM wparam,
LPARAM lparam)
{
extern TCHAR gszHelpFileName[];
#include "helpids.h"
static const DWORD aHelpIds[] = {
IDC_PROP_TXT1, IDH_SNDVOL32_SELECT_DEVICE,
IDC_PROP_DEVICELIST, IDH_SNDVOL32_SELECT_DEVICE,
IDC_PROP_VOLUMES, IDH_SNDVOL32_SELECT_SOUND,
IDC_PROP_PLAYBACK, IDH_SNDVOL32_SELECT_SOUND,
IDC_PROP_RECORDING, IDH_SNDVOL32_SELECT_SOUND,
IDC_PROP_OTHER, IDH_SNDVOL32_SELECT_SOUND,
IDC_PROP_OTHERLIST, IDH_SNDVOL32_SELECT_SOUND,
IDC_PROP_TXT2, IDH_SNDVOL32_VOLCONTROL,
IDC_PROP_VOLUMELIST, IDH_SNDVOL32_VOLCONTROL,
0, 0
};
switch (msg)
{
case WM_CONTEXTMENU:
WinHelp((HWND)wparam, gszHelpFileName, HELP_CONTEXTMENU,
(UINT_PTR)(LPSTR)aHelpIds);
break;
case WM_HELP:
{
LPHELPINFO lphi = (LPVOID) lparam;
WinHelp (lphi->hItemHandle, gszHelpFileName, HELP_WM_HELP,
(UINT_PTR) (LPSTR) aHelpIds);
return TRUE;
}
case WM_INITDIALOG:
HANDLE_WM_INITDIALOG(hwnd, wparam, lparam, Properties_OnInitDialog);
return TRUE;
case WM_COMMAND:
HANDLE_WM_COMMAND(hwnd, wparam, lparam, Properties_OnCommand);
break;
case WM_CLOSE:
EndDialog(hwnd, FALSE);
break;
case WM_DESTROY:
{
PPRIVPROP ppr = GETPROP(hwnd);
if (ppr)
{
if (ppr->adp)
{
GlobalFreePtr(ppr->adp);
ppr->adp = NULL;
}
REMOVEPROP(hwnd);
}
break;
}
case WM_NOTIFY:
{
NMHDR FAR* lpnm = (NMHDR FAR *)lparam;
if ((LVN_ITEMCHANGED == lpnm->code) && hwnd)
{
HWND hwndLV = GetDlgItem (hwnd, IDC_PROP_VOLUMELIST);
if (hwndLV)
{
int nItems = ListView_GetItemCount (hwndLV);
int indx;
for (indx = 0; indx < nItems; indx++)
if (ListView_GetCheckState (hwndLV, indx))
break;
EnableOk (hwnd, nItems != indx);
}
}
break;
}
}
return FALSE;
}
BOOL Properties(
PMIXUIDIALOG pmxud,
HWND hwnd)
{
INT_PTR iret;
PRIVPROP pr;
ZeroMemory(&pr, sizeof(pr));
pr.dwDestination = pmxud->iDest;
pr.uDeviceID = pmxud->mxid;
pr.fMixer = pmxud->dwFlags & MXUD_FLAGSF_MIXER;
pr.dwStyle = pmxud->dwStyle;
pr.pmxud = pmxud;
iret = DialogBoxParam(pmxud->hInstance
, MAKEINTRESOURCE(IDD_PROPERTIES)
, hwnd
, Properties_Proc
, (LPARAM)(LPVOID)&pr );
if (iret == TRUE)
{
pmxud->mxid = pr.uDeviceID;
pmxud->iDest = pr.dwDestination;
pmxud->dwFlags &= ~MXUD_FLAGSF_MIXER;
pmxud->dwFlags |= (pr.fMixer)?MXUD_FLAGSF_MIXER:0L;
pmxud->dwStyle = pr.dwStyle;
}
return (iret == -1) ? FALSE : TRUE;
}