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WTL Button Menu Class

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5 Nov 2002 86.1K   2.2K   31   9
Add a button that displays a menu when clicked to your WTL application

Sample Image - WTLButtonMenu.jpg

Introduction

A small CButton-derived class that will display a popup menu when clicked. Easy to use and very handy for dialog based application.

Using CButtonMenu

To use this class with a WTL dialog, first include the header file in the MainDlg.h file:

#include "buttonmenu.h"

Next, add a CButtonMenu object to the class:

CButtonMenu m_wndButtonMenu;

Next (and this is important), add a REFLECT_NOTIFICATIONS() call to your dialogs message map (else the button won't get the BN_CLICKED notification message):

BEGIN_MSG_MAP(CMainDlg)
    ...
    REFLECT_NOTIFICATIONS()
END_MSG_MAP()

Now subclass an existing button control and set the popup menu that you want displayed in your dialogs OnInitDialog function:

// Create button menu
m_wndButtonMenu.SubclassWindow(GetDlgItem(IDC_BUTTON1));
// Set the menu ID that the button displays
m_wndButtonMenu.SetMenu(IDR_POPUP);

Finally, add the necessary COMMAND_ID_HANDLERs for your popup menu commands.

That's it! The button will be displayed with an arrow (using the Marlett font if available), and will display a popup menu when clicked.

Notes

When designing a dialog-box that uses this class, instead of using a normal button control, use a checkbox control that has the "Push like" style-bit set. The advantage of using a checkbox is that the button will stay pushed whilst the popup menu is displayed (see the example project for more details)

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here



Comments and Discussions

 
GeneralMarlett Arrow Pin
Armen Hakobyan24-Mar-04 8:58
professionalArmen Hakobyan24-Mar-04 8:58 
GeneralRe: Marlett Arrow Pin
Rob Caldecott25-Mar-04 4:09
Rob Caldecott25-Mar-04 4:09 
Hi Armen,

I haven't come across any problems using this font trick for NT4, W2K and XP! Wink | ;)


The Rob Blog
GeneralRe: Very nice, what about the dialog look? Pin
Rob Caldecott17-Feb-03 22:05
Rob Caldecott17-Feb-03 22:05 
GeneralVC6.0 AtlInitCommonControls missing Pin
Martin Holzherr6-Nov-02 6:18
Martin Holzherr6-Nov-02 6:18 
GeneralRe: VC6.0 AtlInitCommonControls missing Pin
Rob Caldecott6-Nov-02 6:38
Rob Caldecott6-Nov-02 6:38 
GeneralRe: VC6.0 AtlInitCommonControls missing Pin
Rob Caldecott6-Nov-02 6:39
Rob Caldecott6-Nov-02 6:39 
GeneralNice Pin
Anatoly Ivasyuk6-Nov-02 4:32
Anatoly Ivasyuk6-Nov-02 4:32 
GeneralRe: Nice Pin
Rob Caldecott6-Nov-02 4:37
Rob Caldecott6-Nov-02 4:37 
GeneralRe: Nice Pin
Paul Selormey6-Nov-02 13:39
Paul Selormey6-Nov-02 13:39 

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