Looking at an application’s structure

If you are working with an application that references one
or more objects in an application-level script, you can look at
the application’s structure in the Browser.

To display the application’s structure:

1. Click the Browser button on the PowerBar.

2. In the Browser, select the Uses tab page and select
   Expand All from the Application object’s popup menu.

   PowerBuilder expands the display to show all the global objects
   that are referenced in a script for the Application object. You
   can expand the display more as needed.

   

Which objects aredisplayed

The Browser’s Uses tab page shows global objects
that are referenced in your application. It shows the same types
of objects that you can see in the Library painter. It does not
show entities that are defined within other objects, such as controls
and object-level functions.

Which references are displayed

The Browser displays the following types of references when
the Application object is expanded.

Objects that are referenced in painters For example:

• If a menu is associated
  with a window in the Window painter, the menu displays when the
  window is expanded.
• If a DataWindow object is associated with a DataWindow
  control in the Window painter, the DataWindow object displays when
  the window is expanded.
• If a window contains a custom user object that includes
  another user object, the custom user object displays when the window
  is expanded, and the other user object displays when the custom
  user object is expanded.

Objects that are directly referenced in scripts For example:

• If a window script
  contains the following statement:
  PowerBuilder

  Open(w_continue)

  1	Open(w_continue)

  
  
  Then w_continue displays when the window is expanded.

  Which referenced windows display in the Browser Windows are only considered referenced when they are opened
  from within a script. A use of another window’s property
  or instance variable will not cause the Browser to display the other
  window as a reference of the window containing the script.
  

• If a menu item script refers to the global function
  f_calc:
  PowerBuilder

  f_calc(EnteredValue)

  1	f_calc(EnteredValue)

  
  Then f_calc displays when the menu is expanded.

• If a window uses a popup menu through the following
  statements:
  PowerBuilder

  m_new mymenu

  1	m_new   mymenu

  PowerBuilder

  mymenu = create m_new

  1	mymenu = create m_new

  PowerBuilder

  mymenu.m_file.PopMenu(PointerX(), PointerY())

  1	mymenu.m_file.PopMenu(PointerX(), PointerY())

  
  Then m_new displays when the window is expanded.

Which references are not displayed

The Browser does not display the following types of references.

Objects that are referenced only through instance
variables or properties For example:

• If w_go has
  this statement (and no other statement referencing w_emp):
  PowerBuilder

  w_emp.Title = "Managers"

  1	w_emp.Title = "Managers"

  
  
  Then w_emp does not display as a reference for w_go.

Objects that are referenced dynamically through
string variables For example:

• If a window script
  has the following statements:
  PowerBuilder

  window mywin

  1	window   mywin

  
  
  PowerBuilder

  string winname = "w_go"

  1	string   winname = "w_go"

  
  
  PowerBuilder

  Open(mywin,winname)

  1	Open(mywin,winname)

  
  
  Then the window w_go does not display when the window
  is expanded. The window w_go is named only in a string.
• If the DataWindow object d_emp is associated
  with a DataWindow control dynamically through the following statement:
  PowerBuilder

  dw_info.DataObject = "d_emp"

  1	dw_info.DataObject = "d_emp"

  
  
  Then d_emp does not display when the window containing
  the DataWindow control is expanded.

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