WTL Hybrid Edit Control that Combines Edit Control and Button Control

• Download source files - 3.75 Kb
• Download demo project - 23.7 Kb

Introduction

Sometimes, when we need a user to select a file or folder or ODBC driver, we would have to create two controls, an edit control for entering the text, and a browse button that would bring up a dialog for actually choosing the file or folder or etc. So I thought why not combine the two controls into one. The CWtlEditBrowserCtrl class is the result. The class definition and implementation are in the files WtlEditBrowserCtrl.h and WtlEditBrowserCtrl.cpp which are included in the demo project.

Using the Control

To use this control in your application:

1. Add the WtlEditBrowserCtrl.h and WtlEditBrowserCtrl.cpp files to your project.
2. Design the dialog and add the Edit control
3. Add the WtlEditBrowserCtrl.h header file to your project
4. Assign a CWtlEditBrowserCtrl to your editbox.
5. In OnInitDialog(), subclass CWtlEditBrowserCtrl control to ID using the SubclassWindow method.

#include "WtlEditBrowserCtrl.h"


//...


class CMainDlg : public CDialogImpl<CMainDlg>
{     
    BEGIN_MSG_MAP(CMainDlg)          
       ...          
       MESSAGE_HANDLER(WM_INITDIALOG, OnInitDialog)          
       REFLECT_NOTIFICATIONS()     
    END_MSG_MAP()
    ...
    LRESULT OnInitDialog(UINT /*uMsg*/, WPARAM /*wParam*/, 
        LPARAM /*lParam*/, BOOL& /*bHandled*/);
    ...
    CWtlEditBrowserCtrl m_Path;     
    ...
}; 

//...


LRESULT CMainDlg::OnInitDialog(UINT /*uMsg*/, WPARAM /*wParam*/, 
      LPARAM /*lParam*/, BOOL& /*bHandled*/) 
{
     ...     
     m_Path.SubclassWindow( ::GetDlgItem( m_hWnd, IDC_EDIT1 ) );     
     ...
}

Requirements

You will require the WTL Libraries, these can be downloaded from the microsoft site.

Acknowledgements

I'd like to thank Pete Arends for his original controls :-

• http://www.codeproject.com/editctrl/fileeditctrl.asp

I'd also like to thank the others who have given feedback, made suggestions, and helped this become what it is today:

• Boris Kropivnitsky
• Andrew Fedoniouk ( http://www.terra-informatica.org/ )
• Sergei Zotin

Contacting the Author

Ilya Solnyshkin, E-mail: isolnyshkin@yahoo.com, Web: http://www.printsniffer.com/