ITaskPane interface provides means to manage task pane commands, graphics, visibility and to query its availability.
  AddCustomCommandToGroup | Adds a created custom command to a Task pane command group. | 
  CreateGroup | Creates a new command group to the task area. | 
  DeleteGroup | Deletes a Task pane custom command group. | 
  RemoveCustomCommandFromGroup | Removes a custom command from a Task pane command group. | 
  SetLogo | Sets the logo in the Task pane. Using this method requires a specific publisher license key in the application definition file. | 
  SetTheme | Sets the task pane theme. The theme specifies the text colors and icons on task pane. | 
  Available | Returns whether the task pane is available in the current context. | 
  Events | Returns the event registering interface for the ITaskPane interface. | 
  Minimized | The minimized state of the pane. | 
  ShellFrame | Returns the shell window. | 
  Visible | Sets or returns the task pane's visibility status in the current context. |