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RegisterHotKey examples ?

Posted on 2000-03-07
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Last Modified: 2008-02-20
Anyone know where there are any full RegisterHotKey example's ??

Thanks !
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Question by:KAbbott
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7 Comments
 
LVL 31

Expert Comment

by:Zoppo
ID: 2595234
Hi KAbbott,

Do not know where you can find examples, but it's use is easy, i.e.:

// registering a hotkey, i.e. ALT-F6 as hot key
ATOM hotKeyAtom = AddGlobalAtom( "MyApp_Hotkey_F6" ); // MSDN suggest using of this to avoid conflicts with hot-key identifiers defined by other shared DLLs
if ( !RegisterHotKey( m_hWnd, hotKeyAtom, MOD_ALT, VK_F6 ) )
{
 TRACE( "Error occured with RegisterHotKey: %i\n", GetLastError() );
}


then you just have to handle the WM_HOTKEY message within you application and do there what you need...

hope that helps,

ZOPPO
0
 
LVL 2

Author Comment

by:KAbbott
ID: 2599713
Is it safe just to handle the message like this:

ON_MESSAGE(WM_HOTKEY, OnHotKey)

then in OnHotKey:

OnHotKey()
{
MessaageBox("HotKey Working...")
}

Is this the right why of doing this ?
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LVL 31

Accepted Solution

by:
Zoppo earned 40 total points
ID: 2599778
Hi KAbbott,

you should pass the message's lParam and wParam to your function somehow like this:


// in class declaration (.h)
BEGIN_MESAGE_MAP(...)
....
afx_msg void OnHotKey( WPARAM wParam, LPARAM lParam );
//}}AFX_MSG
DECLARE_MESSAGE_MAP()

// in implementation (.cpp)
BEGIN_MESSAGE_MAP(...)
....
ON_MESSAGE( WM_HOTKEY, OnHotKey )
END_MESSAGE_MAP()

void
CAboutDlg::OnHotKey( WPARAM wParam, LPARAM lParam )
{
 UINT iHotKeyId = (UINT)wParam;
 UINT iOptions = (UINT)HIWORD( lParam );
 UINT iVKeyCode = (UINT)LOWORD( lParam );

 CString t;
 t.Format( "HotKey #%i pressed, (%i+%i)", iHotKeyId, iOptions, iVKeyCode );
 AfxMessageBox( t );
}


hope that helps,

ZOPPO
0
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LVL 2

Author Comment

by:KAbbott
ID: 2604424
Adjusted points to 10
0
 
LVL 2

Author Comment

by:KAbbott
ID: 2604425
Thanks for your help ZOPPO, and as I am called Zippy in the Half-Clan world, nice mame too.
0
 
LVL 31

Expert Comment

by:Zoppo
ID: 2604441
no problem      :)

what's a 'half-clan world'? Never heard that...

ZOPPO
0
 
LVL 2

Author Comment

by:KAbbott
ID: 2605721
Oops' I meant Half-Life (game) clan
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