100 lines
3.1 KiB
Plaintext
100 lines
3.1 KiB
Plaintext
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Winamp 5 VIS Drawer API
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-----------------------
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Here are the steps to get your visualization plugin in the Winamp 5 drawer :
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1) Create an embedded window to serve as a parent for your vis Wnd using the Winamp 5 Embedded Window SDK :
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HWND parent = NULL;
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HWND (*e)(embedWindowState *v);
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*(void**)&e = (void *)SendMessage(this_mod->hwndParent,WM_WA_IPC,(LPARAM)0,IPC_GET_EMBEDIF);
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if (e) parent = e(&myWindowState);
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2) Create your vis window (say, g_hwnd) for your vis plugin, using the embedded window as a parent.
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3) BEFORE showing your parent window, notify Winamp that you are a VIS window :
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SendMessage(this_mod->hwndParent, WM_WA_IPC, (int)g_hwnd, IPC_SETVISWND);
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ShowWindow(parent, SW_SHOWNA);
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4) When your plugin is asked to terminate, notify winamp that the VIS has gone away :
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SendMessage(g_mod->hwndParent, WM_WA_IPC, NULL, IPC_SETVISWND);
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5) From now on, your vis is going to be automatically inserted in the drawer, and your window (the one you sent to winamp
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using SETVISWND) is going to receive commands when the user clicks in the vis buttons (ie, next/previous/random, etc). You
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should implement these commands by trapping WM_COMMAND:
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case WM_COMMAND: {
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int id = LOWORD(wParam);
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switch (id) {
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// user clicked on 'next' preset button
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case ID_VIS_NEXT: next_preset(); break;
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// user clicked on 'previous' preset button
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case ID_VIS_PREV: previous_preset(); break;
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// user clicked on 'random' togglebutton
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case ID_VIS_RANDOM: {
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// determine if we're switching random on or off or if Winamp is asking us about the state of our random flag
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int v = HIWORD(wParam) ? 1 : 0;
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// are we being asked about the state of our random flag ?
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if (wParam >> 16 == 0xFFFF) {
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// tell winamp about our state
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SendMessage(g_mod->hwndParent,WM_WA_IPC,random_presets_flag,IPC_CB_VISRANDOM);
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break;
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}
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// changes random_preset_flag
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set_random(v);
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// if we are turning random on, we should switch to a new random preset right away
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if (v) load_random_preset();
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break;
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}
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case ID_VIS_FS: go_fullscreen(); break;
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case ID_VIS_CFG: open_configuration(); break;
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case ID_VIS_MENU: open_popup_menu(); break;
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}
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break;
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}
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6) Before turning fullscreen on, you should check wether video is already fullscreen or not :
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if (SendMessage(g_mod->hwndParent,WM_WA_IPC,0,IPC_IS_PLAYING_VIDEO)>1)
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{
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cant_go_fullscreen_dlg();
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}
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7) You're almost done, the last thing to do is to notify Winamp when you go fullscreen :
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go_fullscreen()
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{
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if (SendMessage(g_mod->hwndParent,WM_WA_IPC,0,IPC_IS_PLAYING_VIDEO)>1)
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{
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cant_go_fullscreen_dlg();
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}
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else
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{
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SendMessage(g_mod->hwndParent,WM_WA_IPC,1,IPC_SET_VIS_FS_FLAG);
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... now do the work of actually going fullscreen ...
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}
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}
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go_windowed()
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{
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SendMessage(g_mod->hwndParent,WM_WA_IPC,0,IPC_SET_VIS_FS_FLAG);
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... now do the work of going back to windowed mode ...
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}
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That should be all. Feel free to send your questions to francis@winamp.com
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