多媒体编程

开发平台：

Visual C++

Playlist.h：源码内容

							/**************************************************************************************
 *                                                                                    *
 *                                                                                    *
 **************************************************************************************/
#ifndef PLAYLIST_H
#define PLAYLIST_H
#include <windows.h>
typedef struct playlist_item_s {
	char *filename;
} playlist_item_t;
typedef struct playlist_node_s {
	struct playlist_node_s *next;
	playlist_item_t         item;
} playlist_node_t;
class Playlist {
private:
	DWORD            itemCount;
	DWORD            current;
	playlist_node_t *playlist;
public:
	Playlist();
	~Playlist();
	void             Reset();
	void             AddItem(char *filename);
	void             RemoveItemAt(DWORD i);
	
	void             NextItem();
	void             PreviousItem();
	DWORD            GetItemCount();
	playlist_item_t *GetItemAt(DWORD i);
	DWORD            GetCurrentPosition();
	playlist_item_t *GetCurrentItem();
	void             SetCurrentPosition(DWORD pos);
};
#endif 

						