HSHELL_APPCOMMAND (Windows 2000/XP)

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The user completed an input event (for example, pressed an application command button on the mouse or an application command key on the keyboard), and the application did not handle the WM_APPCOMMAND message generated by that input.

when wParam is HSHELL_APPCOMMAND, the HiWord of lParam contains one of the following constants:

APPCOMMAND_BROWSER_BACKWARD = 1 
APPCOMMAND_BROWSER_FORWARD = 2 
APPCOMMAND_BROWSER_REFRESH = 3 
APPCOMMAND_BROWSER_STOP = 4 
APPCOMMAND_BROWSER_SEARCH = 5 
APPCOMMAND_BROWSER_FAVORITES = 6 
(X) APPCOMMAND_BROWSER_HOME = 7 
(X) APPCOMMAND_VOLUME_MUTE = 8 
(X) APPCOMMAND_VOLUME_DOWN = 9 
(X) APPCOMMAND_VOLUME_UP = 10 
(X) APPCOMMAND_MEDIA_NEXTTRACK = 11 
(X) APPCOMMAND_MEDIA_PREVIOUSTRACK = 12 
(X) APPCOMMAND_MEDIA_STOP = 13 
(X) APPCOMMAND_MEDIA_PLAY_PAUSE = 14 
(X) APPCOMMAND_LAUNCH_MAIL = 15 
APPCOMMAND_LAUNCH_MEDIA_SELECT = 16 
APPCOMMAND_LAUNCH_APP1 = 17 
APPCOMMAND_LAUNCH_APP2 = 18 
APPCOMMAND_BASS_DOWN = 19 
APPCOMMAND_BASS_BOOST = 20 
APPCOMMAND_BASS_UP = 21 
APPCOMMAND_TREBLE_DOWN = 22 
APPCOMMAND_TREBLE_UP = 23 
(X) APPCOMMAND_MICROPHONE_VOLUME_MUTE = 24 
(X) APPCOMMAND_MICROPHONE_VOLUME_DOWN = 25 
(X) APPCOMMAND_MICROPHONE_VOLUME_UP = 26 
APPCOMMAND_HELP = 27 
APPCOMMAND_FIND = 28 
APPCOMMAND_NEW = 29 
APPCOMMAND_OPEN = 30 
APPCOMMAND_CLOSE = 31 
APPCOMMAND_SAVE = 32 
APPCOMMAND_PRINT = 33 
APPCOMMAND_UNDO = 34 
APPCOMMAND_REDO = 35 
APPCOMMAND_COPY = 36 
APPCOMMAND_CUT = 37 
APPCOMMAND_PASTE = 38 
APPCOMMAND_REPLY_TO_MAIL = 39 
APPCOMMAND_FORWARD_MAIL = 40 
APPCOMMAND_SEND_MAIL = 41 
APPCOMMAND_SPELL_CHECK = 42 
APPCOMMAND_DICTATE_OR_COMMAND_CONTROL_TOGGLE = 43 
(X) APPCOMMAND_MIC_ON_OFF_TOGGLE = 44 
APPCOMMAND_CORRECTION_LIST = 45
(X) APPCOMMAND_MEDIA_PLAY = 46;
(X) APPCOMMAND_MEDIA_PAUSE = 47;
(X) APPCOMMAND_MEDIA_RECORD = 48;
(X) APPCOMMAND_MEDIA_FAST_FORWARD = 49;
(X) APPCOMMAND_MEDIA_REWIND = 50;
(X) APPCOMMAND_MEDIA_CHANNEL_UP = 51;
(X) APPCOMMAND_MEDIA_CHANNEL_DOWN = 52;
APPCOMMAND_DELETE = 53;
APPCOMMAND_DWM_FLIP3D = 54;