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How do I use the following functions to get all handles of top level windows?
EnumDesktopWindows
EnumWindowsProc
The help provided in MSDN, is not that much helpful. I did not understand much of it...
Please help...
CornedBee
"Writing specifications is like writing a novel. Writing code is like writing poetry."
- Anonymous, published by Raymond Chen
Don't PM me with your problems, I scan most of the forums daily. If you
do
PM me, I will
not
answer your question.
BOOL CALLBACK EnumWindowsProc( HWND hwnd, LONG lParam );
void CSendMessageTrialDlg::OnButton1()
EnumWindows( (WNDENUMPROC)EnumWindowsProc, (LPARAM) 0);
LRESULT CSendMessageTrialDlg::OnGreet(WPARAM p1, LPARAM p2)
CEdit* pEdit = (CEdit* ) GetDlgItem( IDC_EDIT1);
SetDlgItemText( IDC_EDIT1, "I Greet You!!! Hello..");
return 0;
BOOL CALLBACK EnumWindowsProc( HWND hwnd, LONG lParam )
::SendMessage( hwnd, WM_GREET, 0, 0);
return TRUE;
The one with line which have been boldfaced generates an error if it is replaced with this statement:
Code:
EnumWindows( EnumWindowsProc, 0 );
Why is this so?
Because your EnumWindowsProc has the wrong parameters. As a general rule, if you need a cast when passing callbacks then something's wrong.
The second parameter must be LPARAM, not LONG.
CornedBee
"Writing specifications is like writing a novel. Writing code is like writing poetry."
- Anonymous, published by Raymond Chen
Don't PM me with your problems, I scan most of the forums daily. If you
do
PM me, I will
not
answer your question.
Originally posted by CornedBee
Because your EnumWindowsProc has the wrong parameters. As a general rule, if you need a cast when passing callbacks then something's wrong.
The second parameter must be LPARAM, not LONG.
I actually changed long into LPARAM but it still generates errors I guess I overlooked something...
Anyway tnx for the advice...
CornedBee
"Writing specifications is like writing a novel. Writing code is like writing poetry."
- Anonymous, published by Raymond Chen
Don't PM me with your problems, I scan most of the forums daily. If you
do
PM me, I will
not
answer your question.
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