Adding a COM object and a Method

Now we'll proceed with the definition of the COM object, the interface, and the methods. This class is named BeepObj and has an interface called IBeepObj:

• Look at the "Class View" tab. Initially it only has a single item in the list. Right click on "BeepServer Classes" item.
• Select "New ATL Object…". This step can also be done from the main menu. Select the "New ATL Object" on the Insert menu item.

• At the Object Wizard dialog select "Objects". Choose "Simple Object" and press Next.

• Choose the Names tab. Enter short name for the object: BeepObj. All the other selections are filled in automatically with standard names.

Figure 4-5

• Press the "Attributes" tab and select: Apartment Threading, Custom Interface, No Aggregation. Actually, the aggregation isn't important for this server.

• Press OK. This will create the Com Object.