🚀 go-pugleaf

"RaynorPao" <RaynorPao.nospam@nospam.pchome.com.tw> wrote in message
news:3e8c5dce@newsgroups.borland.com...

>    if(!EnumWindows((WNDENUMPROC)MyEnumWndProc, (LPARAM)hinst))
>    {
>       // It didn't execute to this block.

Nor should it.  You made the wrong assumption.  You assume that
EnumWindows() returns the same return value as the callback function.  It
doesn't.  The callback's return value simply tells EnumWindows() whether to
continue enumerating to the next window or not, whereas the return value of
EnumWindows() tells the calling code whether the enumeration itself was
successfully executed or not.

Try this instead:

    void __fastcall TForm1::Button3Click(TObject *Sender)
    {
        HINSTANCE hinst = ShellExecute(NULL, "open", "test.txt", NULL, NULL,
SW_SHOWNORMAL);
        if( hinst > 32 )
        {
            ghwnd = NULL;
            EnumWindows((WNDENUMPROC)MyEnumWndProc, (LPARAM)hinst);

            if( ghwnd != NULL )
            {
                char szCaption[256]={0};
                GetWindowText(ghwnd, szCaption, 256);
                ShowMessage(szCaption);
            }
        }
    }


Gambit