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diff --git a/Src/Plugins/Visualization/vis_avs/VIS.H b/Src/Plugins/Visualization/vis_avs/VIS.H
new file mode 100644
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+++ b/Src/Plugins/Visualization/vis_avs/VIS.H
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+/*
+  LICENSE
+  -------
+Copyright 2005 Nullsoft, Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, 
+are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright notice,
+    this list of conditions and the following disclaimer. 
+
+  * Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions and the following disclaimer in the documentation
+    and/or other materials provided with the distribution. 
+
+  * Neither the name of Nullsoft nor the names of its contributors may be used to 
+    endorse or promote products derived from this software without specific prior written permission. 
+ 
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR 
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 
+OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+// notes:
+// any window that remains in foreground should optimally pass 
+// keystrokes to the parent (winamp's) window, so that the user
+// can still control it. unless escape is hit, or some option 
+// key specific to the vis is hit. As for storing configuration,
+// Configuration data should be stored in <dll directory>\plugin.ini
+// Look at the example plugin for a framework.
+
+// ints are 32 bits, and structure members are aligned on the default 8 byte boundaries
+// tested with VC++ 4.2 and 5.0
+
+
+typedef struct winampVisModule {
+  char *description; // description of module
+  HWND hwndParent;   // parent window (filled in by calling app)
+  HINSTANCE hDllInstance; // instance handle to this DLL (filled in by calling app)
+  int sRate;		 // sample rate (filled in by calling app)
+  int nCh;			 // number of channels (filled in...)
+  int latencyMs;     // latency from call of RenderFrame to actual drawing
+                     // (calling app looks at this value when getting data)
+  int delayMs;       // delay between calls in ms
+
+  // the data is filled in according to the respective Nch entry
+  int spectrumNch;
+  int waveformNch;
+  unsigned char spectrumData[2][576];
+  unsigned char waveformData[2][576];
+
+  void (*Config)(struct winampVisModule *this_mod);  // configuration dialog
+  int (*Init)(struct winampVisModule *this_mod);     // 0 on success, creates window, etc
+  int (*Render)(struct winampVisModule *this_mod);   // returns 0 if successful, 1 if vis should end
+  void (*Quit)(struct winampVisModule *this_mod);    // call when done
+
+  void *userData; // user data, optional
+} winampVisModule;
+
+typedef struct {
+  int version;       // VID_HDRVER
+  char *description; // description of library
+  winampVisModule* (*getModule)(int);
+} winampVisHeader;
+
+// exported symbols
+typedef winampVisHeader* (*winampVisGetHeaderType)();
+
+// version of current module (0x101 == 1.01)
+#define VIS_HDRVER 0x101
+\ No newline at end of file