Committing NowPlaying plugin. Because it requires VS2010 Pro to compile, it is not built by default.

Plugins/PluginNowPlaying/SDKs/Winamp/wa_hotkeys.h

@@ -0,0 +1,39 @@
+#ifndef WA_HOTKEYS
+#define WA_HOTKEYS
+
+//#define IPC_GEN_HOTKEYS_ADD xxxx //pass a genHotkeysAddStruct * struct in data
+//
+//To get the IPC_GEN_HOTKEYS_ADD IPC number, do this:
+//
+//  genhotkeys_add_ipc=SendMessage(winampWindow,WM_WA_IPC,(WPARAM)&"GenHotkeysAdd",IPC_REGISTER_WINAMP_IPCMESSAGE);
+//
+//Then you can use:
+//
+//  PostMessage(winampWindow,WM_WA_IPC,(WPARAM)&myGenHotkeysAddStruct,genhotkeys_add_ipc);
+//
+
+//flags for the genHotkeysAddStruct struct
+#define HKF_BRING_TO_FRONT 0x1  // calls SetForegroundWindow before sending the message
+#define HKF_HWND_WPARAM 0x2     // sets wParam with Winamp's window handle
+#define HKF_COPY 0x4            // copies returned text to the clipboard
+#define HKF_PLPOS_WPARAM 0x8    // sets wParam with current pledit position
+#define HKF_ISPLAYING_WL 0x10   // sets wParam to genHotkeysAddStruct's wParam if playing, lParam if not
+                                // uses IPC_ISPLAYING to check if playing
+#define HKF_SHOWHIDE 0x20       // brings Winamp to front or minimizes Winamp if already at front
+#define HKF_NOSENDMSG 0x40      // don't send any message to the winamp window
+
+#define HKF_DISABLED 0x80000000
+
+typedef struct {
+  char *name;     //name that will appear in the Global Hotkeys preferences panel
+  DWORD flags;    //one or more flags from above
+  UINT uMsg;      //message that will be sent to winamp's main window (must always be !=NULL)
+  WPARAM wParam;  //wParam that will be sent to winamp's main window
+  LPARAM lParam;  //lParam that will be sent to winamp's main window
+  char *id;       //unique string to identify this command - case insensitive
+  HWND wnd;       //set the HWND to send message (or 0 for main winamp window)
+  
+  int extended[6]; //for future extension - always set to zero!
+} genHotkeysAddStruct;
+
+#endif