windows-nt/Source/XPSP1/NT/shell/osshell/control/mmsys/multchan.h

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2020-09-26 03:20:57 -05:00
///////////////////////////////////////////////////////////////////////////////
//
// File: multchan.c
//
// This file defines the functions that drive the multichannel
// volume tab of the Sounds & Multimedia control panel.
//
// History:
// 13 March 2000 RogerW
// Created.
//
// Copyright (C) 2000 Microsoft Corporation All Rights Reserved.
//
// Microsoft Confidential
//
///////////////////////////////////////////////////////////////////////////////
// Prototypes
INT_PTR CALLBACK MultichannelDlg (HWND hDlg, UINT msg, WPARAM wParam, LPARAM lParam);
HRESULT SetDevice (UINT uiMixID, DWORD dwDest, DWORD dwVolID);
UINT GetPageStringID ();
BOOL OnInitDialogMC (HWND hDlg, HWND hwndFocus, LPARAM lParam);
void OnDestroyMC (HWND hDlg);
void OnNotifyMC (HWND hDlg, LPNMHDR pnmh);
BOOL PASCAL OnCommandMC (HWND hDlg, int id, HWND hwndCtl, UINT codeNotify);
void FreeMCMixer ();
HRESULT GetMCVolume ();
void DisplayMCVolumeControl (HWND hDlg);
void ShowAndEnableWindow (HWND hwnd, BOOL fEnable);
void UpdateMCVolumeSliders (HWND hDlg);
void MCVolumeScroll (HWND hwnd, HWND hwndCtl, UINT code, int pos);
BOOL SetMCVolume (DWORD dwChannel, DWORD dwVol, BOOL fMoveTogether);
BOOL SliderIDtoChannel (UINT uiSliderID, DWORD* pdwChannel);
void HandleMCPowerBroadcast (HWND hWnd, WPARAM wParam, LPARAM lParam);
void InitMCVolume (HWND hDlg);
void FreeAll ();
BOOL GetSpeakerLabel (DWORD dwSpeakerType, UINT uiSliderIndx, WCHAR* szLabel, int nSize);
BOOL GetSpeakerType (DWORD* pdwSpeakerType);
void MCDeviceChange_Cleanup ();
void MCDeviceChange_Init (HWND hWnd, DWORD dwMixerID);
void MCDeviceChange_Change (HWND hDlg, WPARAM wParam, LPARAM lParam);