vbAccelerator - Contents of code file: WinAmpPluginWrapper_out.h

This file is part of the download Winamp Plugin Wrapper, which is described in the article Using WinAmp In Plugins From VB.

#define OUT_VER 0x10

typedef struct 
   int version;            // module version (OUT_VER)
   char *description;         // description of module, with version string
   int id;                  // module id. each input module gets its own.
    non-nullsoft modules should
                        // be >= 65536. 

   HWND hMainWindow;         // winamp's main window (filled in by winamp)
   HINSTANCE hDllInstance;      // DLL instance handle (filled in by winamp)

   void (*Config)(HWND hwndParent); // configuration dialog 
   void (*About)(HWND hwndParent);  // about dialog

   void (*Init)();            // called when loaded
   void (*Quit)();            // called when unloaded

   int (*Open)(int samplerate, int numchannels, int bitspersamp, int
    bufferlenms, int prebufferms); 
               // returns >=0 on success, <0 on failure
               // NOTENOTENOTE: bufferlenms and prebufferms are ignored in most
                if not all output plug-ins. 
               //    ... so don't expect the max latency returned to be what
                you asked for.
               // returns max latency in ms (0 for diskwriters, etc)
               // bufferlenms and prebufferms must be in ms. 0 to use defaults. 
               // prebufferms must be <= bufferlenms

   void (*Close)();   // close the ol' output device.

   int (*Write)(char *buf, int len);   
               // 0 on success. Len == bytes to write (<= 8192 always). buf is
                straight audio data. 
               // 1 returns not able to write (yet). Non-blocking, always.

   int (*CanWrite)();   // returns number of bytes possible to write at a given
                  // Never will decrease unless you call Write (or Close, heh)

   int (*IsPlaying)(); // non0 if output is still going or if data in buffers
    waiting to be
                  // written (i.e. closing while IsPlaying() returns 1 would
                   truncate the song

   int (*Pause)(int pause); // returns previous pause state

   void (*SetVolume)(int volume); // volume is 0-255
   void (*SetPan)(int pan); // pan is -128 to 128

   void (*Flush)(int t);   // flushes buffers and restarts output at time t (in
                     // (used for seeking)

   int (*GetOutputTime)(); // returns played time in MS
   int (*GetWrittenTime)(); // returns time written in MS (used for synching up
    vis stuff)

} Out_Module;