Hi im trying to enumerate through opened windows(20 in this case) and dump their names in a listbox. Though i get a blank str always. How to fix it? Thanx.
Code:for(int i=0; i<20; i++) { CWnd *cwnd = GetNextWindow(); CString str; cwnd->GetWindowText(str); m_clbWndList.AddString(str); }
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(and, sorry for my amateur English)
'GetWindowText' wears 3 arguments (in order): handle to the window to work with, buffer, and buffer size, can do something like that:
Hope that helpsCode:char bff[512]; GetWindowText(chwnd,bff,sizeof(bff));
Niara
>> 'GetWindowText' wears 3 arguments
And CWnd::GetWindowText wears 2 or 1.
http://msdn.microsoft.com/en-us/library/ms633520.aspx
See Remarks. You may have to send WM_GETTEXT directly.
gg
i did above both, still i get the empty string.
??Code:CWnd *cwnd = GetNextWindow(); char str[512]="\0"; ::SendMessage(cwnd->m_hWnd,WM_GETTEXT,0, (LPARAM)str);
GameJolt: https://gamejolt.com/@KasunL
Game Development Youtube: https://is.gd/XyhYoP
Amateur IT Blog: http://everything-geeky.blogspot.com/
(and, sorry for my amateur English)
Codeplug: thank's to notice the error
geek@02: now yes, WM_GETTEXT wears 2 argsin order the buffer size and the buffer, so maybe the trick will be:
Hope that helpsCode:CWnd *cwnd = GetNextWindow(); char str[512]="\0"; ::SendMessage(cwnd->m_hWnd,WM_GETTEXT,(WPARAM)512, (LPARAM)str);
Niara
Check the return, which should be the length of the string returned. If zero call GetLastError().
That should tell you if the window has no title, is a another windows control or an error occured [ERROR_SUCCESS == 0].
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