Mapping of events -MFC Internals
-
In MFC,can somebody explain me how the mapping takes place.I mean where does the info comes -list of messages? Does it come from a database? I know that DECLARE_MESSAGE_MAP() creates 3 entries. One of which is structure of array which consists of eventsid and functions call.
-
In MFC,can somebody explain me how the mapping takes place.I mean where does the info comes -list of messages? Does it come from a database? I know that DECLARE_MESSAGE_MAP() creates 3 entries. One of which is structure of array which consists of eventsid and functions call.
hello blacktiger mapping of messages happens in the message map (im not trying to be smart it really does:)) DECLARE_MESSAGE_MAP is only half the story in your cpp file there is something like this BEGIN_MESSAGE_MAP(FxMarginsDlg, VDialog) //{{AFX_MSG_MAP(FxMarginsDlg) ON_BN_CLICKED(IDC_BUTTON_CLOSE, OnButtonClose) //}}AFX_MSG_MAP END_MESSAGE_MAP() this is the message map. Entries are added by the Wizard in Visual Studio or you can edit it manually. In this example the control with ID IDC_BUTTON_CLOSE is mapped to function OnButtonClose Your best bet in understading how this works is to insert a command in an empty app, add a handler as above and set a breakpoint in the handler function. When the code hits the breakpoint you can look at the call stack and trace into the MFC code. Hope this helps
-
In MFC,can somebody explain me how the mapping takes place.I mean where does the info comes -list of messages? Does it come from a database? I know that DECLARE_MESSAGE_MAP() creates 3 entries. One of which is structure of array which consists of eventsid and functions call.
Check out this place. This might probably give some ideas. http://www.codersource.net/mfc\_tutorial\_Part2.html Thanks Muthu Muthukumar.V
-
hello blacktiger mapping of messages happens in the message map (im not trying to be smart it really does:)) DECLARE_MESSAGE_MAP is only half the story in your cpp file there is something like this BEGIN_MESSAGE_MAP(FxMarginsDlg, VDialog) //{{AFX_MSG_MAP(FxMarginsDlg) ON_BN_CLICKED(IDC_BUTTON_CLOSE, OnButtonClose) //}}AFX_MSG_MAP END_MESSAGE_MAP() this is the message map. Entries are added by the Wizard in Visual Studio or you can edit it manually. In this example the control with ID IDC_BUTTON_CLOSE is mapped to function OnButtonClose Your best bet in understading how this works is to insert a command in an empty app, add a handler as above and set a breakpoint in the handler function. When the code hits the breakpoint you can look at the call stack and trace into the MFC code. Hope this helps
How should I map my own events and notifications in MFC? In my app I created a Dialog box in a SDI app where I have events in one Combo Box and Notifications in another Combo Box? Now I wish to map events and notifications, How should I proceed?
-
How should I map my own events and notifications in MFC? In my app I created a Dialog box in a SDI app where I have events in one Combo Box and Notifications in another Combo Box? Now I wish to map events and notifications, How should I proceed?