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Lesson 1 -Building Your First Windows Application

1.1 : Creating a Windows Application

1.2 : Creating a Dialog-Based Application

1.3 : Creating DLLs, Console Applications, and More

1.4 : Changing Your AppWizard Decisions
 1.5 : Understanding AppWizard’s Code
 1.6 : Understanding a MDI Application
 1.7 : Understanding the Components of a Dialog-Based Application

Lesson 2 - Dialogs and Controls

2.1 : Understanding Dialog Boxes

2.2 : Creating a Dialog Box Resource

 2.3 : Writing a Dialog Box Class
 2.4 : Using the Dialog Box Class
Lesson 3 - Messages and Commands

3.1 : Understanding Message Routing

3.2 : Understanding Message Loops

 3.3 : Reading Message Maps
 3.4 : Learning How ClassWizard Helps You Catch Messages
 3.5 : Recognizing Messages
 3.6 : Understanding Commands
 3.7 : Understanding Command Updates
 3.8 : Learning How ClassWizard Helps You Catch Commands and Command Updates

Lesson 4 - Documents and Views

4.1 : Understanding the Document Class

4.2 : Understanding the View Class

4.3 : Creating the Rectangles Application

 4.4 : Other View Classes

4.5 : Document Templates, Views, and Frame Windows

Lesson 5 - Drawing on the Screen

5.1 :Understanding Device Contexts

 5.2 : Introducing the Paint1 Application
 5.3 : Building the Paint1 Application
 5.4 : Scrolling Windows
 5.5 : Building the Scroll Application
Lesson 6 - Building a Complete Application: ShowString

6.1 : Building an Application That Displays a String

 6.2 : Building the ShowString Menus
 6.3 : Building the ShowString Dialog Boxes
 6.4 : Making the Menu Work
 6.5 : Making the Dialog Box Work
 6.6 : Adding Appearance Options to the Options Dialog Box
Lesson 7 -  Status Bars and Toolbars

7.1 : Working with Toolbars

 7.2 : Working with Status Bars
Lesson 8 - Common Controls

8.1 : The Progress Bar Control

 8.2 : The Up-Down Control
 8.3 : The Image List Control
 8.4 : The List View Control
 8.5 : The Tree View Control
 8.6 : The Rich Edit Control
 8.7 : The Date Picker Control
 8.8 : Month Calendar Control
 8.9 : Scrolling the View
Lesson 9 - Property Pages and Sheets

9.1 : Introducing Property Sheets

 9.2 : Creating the Property Sheet Demo Application
 9.3 : Running the Property Sheet Demo Application
Lesson 10 - ActiveX Concepts

10.1 : The Purpose of ActiveX

10.2 : Object Linking

10.3 : Object Embedding

 10.4 : Containers and Servers
 10.5 : Toward a More Intuitive User Interface
 10.6 : The Component Object Model  

10.7 : Automation

 10.8 : ActiveX Controls

Lesson 11 -  Building an ActiveX Control

11.1 : Creating a Rolling-Die Control

11.2 : Displaying the Current Value

11.3 : Reacting to a Mouse Click and Rolling the Die 

 11.4 : Creating a Better User Interface
 11.5 : Generating Property Sheets
Lesson 12 - Database Access

12.1 : Understanding Database Concepts

12.2 : Creating an ODBC Database Program

 12.3 : Choosing Between ODBC and DAO
 12.4 : OLE DB

Lesson - 3:Messages and Commands

3.6: Understanding Commands

What is a command? It is a special type of message. Windows generates a command whenever a user chooses a menu item, clicks a button, or otherwise tells the system to do something. In older versions of Windows, both menu choices and button clicks generated a WM_COMMAND message; these days you receive a WM_COMMAND for a menu choice and a WM_NOTIFY for a control notification such as button clicking or list box selecting. Commands and notifications are passed around by the operating system just like any other message, until they get into the top of OnWndMsg(). At that point, Windows message passing stops and MFC command routing starts.

Command messages all have, as their first parameter, the resource ID of the menu item that was chosen or the button that was clicked. These resource IDs are assigned according to a standard pattern—for example, the menu item File, Save has the resource ID ID_FILE_SAVE.

Command routing is the mechanism OnWndMsg() uses to send the command (or notification) to objects that can’t receive messages. Only objects that inherit from CWnd can receive messages, but all objects that inherit from CCmdTarget, including CWnd and CDocument, can receive commands and notifications. That means a class that inherits from CDocument can have a message map. There won’t be any entries in it for messages, only for commands and notifications, but it’s still a message map.
 

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