Building and Running Container Step 1

Build Container Step 1. When it compiles and links successfully, run the program. Here are some things to try:

• From the Edit menu, choose Insert New Object to create a new Scribble drawing within the Container document. When the Insert Object dialog box appears, select Scribb Document in the Object Type list box.

  Notice that the Scribble object initially has a size of (10, 10, 50, 50), as determined by the CContainerItem constructor. Container does not consult the server about the initial size of the object.

• Resize the object to make it bigger and draw in the new object.
  
  
• Click outside the Scribble object. It is now properly deselected.
  
  
• Click the Scribble object.

  Selection now works, and the cursor changes to a four-way arrow over the object.

• Drag the object around, and resize it.

  Rectangle tracking is now working.

At this point you can try to insert linked items:

• Start HIERSVR stand-alone, create a file, and save it to disk.
  
  
• Close HIERSVR.
  
  
• From the Container Edit menu, choose Insert New Object.
  
  
• Click the Create from File option.
  
  
• Type the name of the HIERSVR file just created, or use the Browse button to select it.
  
  
• Click the Link check box.
  
  
• Click OK.

You will see that the item now has a dashed border, and that double-clicking the item opens it instead of activating it, as would be expected from linked items.

This completes Step 1 of Container. In the next lesson, Refining OLE Container Functionality, you will add the Copy and Paste commands to the Edit menu, implement smart invalidation, and implement better coordination with the server to determine the size of contained objects.