External Interfaces/API Reference

delete (COM)

Delete a COM control or server

Syntax

• delete(h)
  

Arguments

h
   Handle for a COM object previously returned from actxcontrol, actxserver, get, or invoke.

Description

Release all interfaces derived from the specified COM server or control, and then delete the server or control itself. This is different from releasing an interface, which releases and invalidates only that interface.

Examples

Create a Microsoft Calender application. Then create a TitleFont interface and use it to change the appearance of the font of the calendar's title:

• f = figure('pos',[300 300 500 500]);
  cal = actxcontrol('mscal.calendar', [0 0 500 500], f);
  
  TFont = get(cal, 'TitleFont')
  TFont =
     Interface.mscal.calendar.TitleFont
  
  set(TFont, 'Name', 'Viva BoldExtraExtended');
  set(TFont, 'Bold', 0);
  

When you're finished working with the title font, release the TitleFont interface:

• release(TFont);
  

Now create a GridFont interface and use it to modify the size of the calendar's date numerals:

• GFont = get(cal, 'GridFont')
  GFont =
     Interface.mscal.calendar.GridFont
  
  set(GFont, 'Size', 16);
  

When you're done, delete the cal object and the figure window. Deleting the cal object also releases all interfaces to the object (e.g., GFont):

• delete(cal);
  delete(f);
  clear f;
  

Note that, although the object and interfaces themselves have been destroyed, the variables assigned to them still reside in the MATLAB workspace until you remove them with clear.

• whos
    Name        Size                   Bytes  Class
  
    GFont       1x1                        0  handle
    TFone       1x1                        0  handle
    cal         1x1                        0  handle
  
  Grand total is 3 elements using 0 bytes
  

See Also

release, save, load, actxcontrol, actxserver

addproperty (COM)

deleteproperty (COM)