Handle to a MFC dialog box window?
-
Hello! I'm working with an MFC dialog based app and am using: SendMessage(GetDlgItem(hDlg, IDC_EDIT_CHATLOG), EM_EXSETSEL, 0, (LPARAM)&ch); But I don't have a way to get the hDlg parameter which is the handle to the window. Anyone know how to get the handle to an mfc dialog box win? thanks in advance, jay
-
Hello! I'm working with an MFC dialog based app and am using: SendMessage(GetDlgItem(hDlg, IDC_EDIT_CHATLOG), EM_EXSETSEL, 0, (LPARAM)&ch); But I don't have a way to get the hDlg parameter which is the handle to the window. Anyone know how to get the handle to an mfc dialog box win? thanks in advance, jay
That depends on where that code is. Is it in a member function of the dialog? If so, just use the
CWndwrapper:SendDlgItemMessage(IDC_EDIT_CHATLOG, EM_EXSETSEL, 0, (LPARAM)&ch);
Otherwise, use
AfxGetMainWnd()to get a pointer to the main window:AfxGetMainWnd()->SendDlgItemMessage(...);
--Mike-- Visual C++ MVP :cool: LINKS~! Ericahist | NEW!! PimpFish | CP SearchBar v3.0 | C++ Forum FAQ
-
Hello! I'm working with an MFC dialog based app and am using: SendMessage(GetDlgItem(hDlg, IDC_EDIT_CHATLOG), EM_EXSETSEL, 0, (LPARAM)&ch); But I don't have a way to get the hDlg parameter which is the handle to the window. Anyone know how to get the handle to an mfc dialog box win? thanks in advance, jay
Hi, you can use one of the following 3 methods to retreive the handle of a control 1. insinde the dialog you can get a window object of the control:
CWnd* pWnd = GetDlgItem(IDC_EDIT1); HWND hWnd = pWnd->GetSafeHwnd();2. insinde the dialog you can get the handle of the control:
HWND hWnd2 = NULL; GetDlgItem(IDC_EDIT1, &hWnd2);3. from anywhere you can get a handle of a control by using:
HWND hWnd3 = ::GetDlgItem(pDlg->GetSafeHwnd(), IDC_EDIT1);if you need to get a unknown window you'v got to find it using the following code:
HWND hwndThis = ::FindWindow(NULL, _T("DlgTest"));where
_T("DlgTest")is the caption of the window you are looking for codito ergo sum -
Hi, you can use one of the following 3 methods to retreive the handle of a control 1. insinde the dialog you can get a window object of the control:
CWnd* pWnd = GetDlgItem(IDC_EDIT1); HWND hWnd = pWnd->GetSafeHwnd();2. insinde the dialog you can get the handle of the control:
HWND hWnd2 = NULL; GetDlgItem(IDC_EDIT1, &hWnd2);3. from anywhere you can get a handle of a control by using:
HWND hWnd3 = ::GetDlgItem(pDlg->GetSafeHwnd(), IDC_EDIT1);if you need to get a unknown window you'v got to find it using the following code:
HWND hwndThis = ::FindWindow(NULL, _T("DlgTest"));where
_T("DlgTest")is the caption of the window you are looking for codito ergo sum -
The HWND handle to the MFC dialog box, I think AfxGetMainWnd() will work but for some reason I've been having a bit of trouble trying to implement it in a small UDP voice chat server app.
Hi, can you be a little specific of the location in code from where did you try to get the handle of the dialog? Is it from a thread handling the UDP connection and is the dialog you reffer to the main dialog of a dialog base application. In that case you should give the handle to the window/dialog via a paramter to the thread when constructing the thread. Or could you tell me a little more of the design of your application so that i can spot your problem codito ergo sum
-
Hi, can you be a little specific of the location in code from where did you try to get the handle of the dialog? Is it from a thread handling the UDP connection and is the dialog you reffer to the main dialog of a dialog base application. In that case you should give the handle to the window/dialog via a paramter to the thread when constructing the thread. Or could you tell me a little more of the design of your application so that i can spot your problem codito ergo sum
Yea I'm sorry guys I should have been more descriptive. I've figured it out now, but basically all I was trying to do was log messages to an edit box control inside an mfc dialog based app in a CString. Now initially I was trying to do this from inside the server's functions, which I then realized all I needed was to either it global or pass it to each server's functions. Then I couldnt figure out why the strings weren't being added to the log window correctly, then I saw I needed to go inside the Dialog's Timer function where I handle my updating for my server and refresh the window every 60th of a second. All in all it was more of the fact I forgot where I needed to call what, exactly as you said. I'll remember to be more specific next time, but the help was much much appreciate and used! Jay Aigner http://wwww.jdaigner.com