//
//  Microsoft Windows Media Technologies
//  Copyright (C) Microsoft Corporation, 1999 - 2001. All rights reserved.
//

// This workspace contains two projects -
// 1. ProgHelp which implements the Progress Interface 
// 2. The Sample application WmdmApp. 
//
//  ProgHelp.dll needs to be registered first for the SampleApp to run.

///////////////////////////////////////////////////////////////////////////////
//
//	devices.h
//
///////////////////////////////////////////////////////////////////////////////

#ifndef		_DEVICES_H_
#define		_DEVICES_H_


class CDevices
{
	HWND    m_hwndDevices;
	HWND    m_hwndDevices_TV;

	HIMAGELIST m_himlSmall;

	BOOL InitImageList( void );

public:

	// Constructors/destructors
	//
	CDevices();
	~CDevices();

	// Operations
	//
	BOOL Create( HWND hwndParent );
	VOID Destroy( void );

	HWND GetHwnd( void );
	HWND GetHwnd_TV( void );

	HTREEITEM GetSelectedItem( LPARAM *pLParam );
	BOOL SetSelectedItem( HTREEITEM hItem );
	INT  GetDeviceCount( VOID );
	CItemData *GetRootDevice( HTREEITEM hItem );
	BOOL HasSubFolders( HTREEITEM hItem );

	VOID UpdateStatusBar( void );
	BOOL UpdateSelection( HTREEITEM hItem, BOOL fDirty );
	
	BOOL AddItem( CItemData *pItemData );
	INT  AddChildren( HTREEITEM hItem, BOOL fDeviceItem );
	VOID RemoveAllItems( VOID );
	INT  RemoveChildren( HTREEITEM hItem );

	VOID OnSize( LPRECT prcMain );
};


#endif		// _DEVICES_H_