94 lines
3.1 KiB
C
94 lines
3.1 KiB
C
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/*******************************************************************************
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* AudioDlg.h *
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*------------*
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* Description:
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* This is the header file for the default audio input/output dialog.
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*-------------------------------------------------------------------------------
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* Created By: BECKYW Date: 10/15/99
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* Copyright (C) 1999 Microsoft Corporation
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* All Rights Reserved
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*
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*******************************************************************************/
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#ifndef _AUDIODLG_H
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#define _AUDIODLG_H
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#define MAX_LOADSTRING 1000
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#define WM_AUDIOINFO WM_USER + 20
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typedef enum IOTYPE
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{
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eINPUT,
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eOUTPUT
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};
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typedef struct AUDIOINFO
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{
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ISpObjectToken *pToken;
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} AUDIOINFO;
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class CAudioDlg
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{
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private:
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BOOL m_bPreferredDevice;
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HWND m_hDlg;
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const IOTYPE m_iotype;
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CSpDynamicString m_dstrDefaultTokenIdBeforeOK;
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CSpDynamicString m_dstrCurrentDefaultTokenId;
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// Indicates whether a change was made that will have to be committed
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bool m_fChangesToCommit;
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bool m_fChangesSinceLastTime;
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// Indicates if any changes have been made since the last apply
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// that need to be reflected in the UI
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CSpDynamicString m_dstrLastRequestedDefaultTokenId;
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// holds the process information for the volume control
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PROCESS_INFORMATION m_pi;
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// Will decide between W() and A() versions
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CSpUnicodeSupport m_unicode;
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public:
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CAudioDlg(IOTYPE iotype) :
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m_bPreferredDevice(true),
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m_hDlg(NULL),
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m_iotype(iotype),
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m_fChangesToCommit( false ),
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m_fChangesSinceLastTime( false ),
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m_dstrLastRequestedDefaultTokenId( (WCHAR *) NULL ),
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m_dstrCurrentDefaultTokenId( (WCHAR *) NULL )
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{
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m_pi.hProcess = NULL;
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}
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HRESULT OnApply(void);
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bool IsAudioDeviceChanged()
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{ return m_fChangesToCommit; }
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bool IsAudioDeviceChangedSinceLastTime()
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{ return m_fChangesSinceLastTime; }
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private:
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void OnDestroy(void);
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void OnInitDialog(HWND hWnd);
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HWND GetHDlg(void)
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{ return m_hDlg; }
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BOOL IsPreferredDevice(void)
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{ return m_bPreferredDevice; }
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void SetPreferredDevice( BOOL b )
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{ m_bPreferredDevice = b; }
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UINT GetRequestedDefaultTokenID( WCHAR *pwszNewID, UINT cLength );
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HRESULT GetAudioToken(ISpObjectToken **ppToken);
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HRESULT UpdateDlgUI(ISpObjectToken *pToken);
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BOOL IsInput(void)
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{ return (m_iotype == eINPUT); };
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friend BOOL CALLBACK AudioDlgProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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};
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#endif // _AUDIODLG_H
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