Re: Several ways to define 2 system-wide hotkeys, without to install keyboard-hook..

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Article #8102

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#8102

From: Oren Halvani
Date: Mon, 22 Nov 2004 22:15

55 lines
3380 bytes

"Remy Lebeau (TeamB)" <no.spam@no.spam.com> schrieb im
 Newsbeitrag news:41a23648$1@newsgroups.borland.com...

>     BOOL CALLBACK EnumWindowsProc(HWND Wnd, LPARAM lParam)
>     {
>         if( (IsWindowVisible(Wnd) || IsIconic(Wnd)) &&
>             ((GetWindowLong(Wnd, GWL_HWNDPARENT) == 0) ||
>             (GetWindowLong(Wnd, GWL_HWNDPARENT) == GetDesktopWindow())) &&
>             ((GetWindowLong(Wnd, GWL_EXSTYLE) & WS_EX_TOOLWINDOW) == 0) )
>             Form1->ListBox1->Items->Add("Handle: " + IntToStr(Wnd) + ",Text:
> " + GetText(Wnd));
>         return TRUE;
>     }

here is a comparsion problem:

((GetWindowLong(Wnd, GWL_HWNDPARENT) == 0) ||
(GetWindowLong(Wnd, GWL_HWNDPARENT) == GetDesktopWindow()))


LONG GetWindowLong(HWND hWnd,  int nIndex) ==
HWND GetDesktopWindow(VOID);

give's me a: " Cannot convert long to *void " error...

and here is also a problem:

frmMainUnit->ListBox1->Items->Add("Handle: " + IntToStr(Wnd) + ", Text: " +
GetText(Wnd));

this is causing: " Cannot convert void* to int " error...
can i use here also a reinterpret_cast for them both or
is it dangerous..?


> You cannot call FreeMem() after a 'return' statement.  As soon as the
> 'return' statement executes, the function exists immediately and is no
> longer running.  You have to call FreeMem() before you call 'return', or
> else the memory is leaked.
>
>
> Gambit

so this is delphi specific, that a return is called BEFORE the
FreeMem() ??? wired !

    Result := Text;
    FreeMem(Text);

i'm happy that i've NEVER learned this complicated language..
C++ seems to me muuuch easier to understand as delphi :-)



Oren

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Subject: Re: Several ways to define 2 system-wide hotkeys, without to install keyboard-hook..
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