How many types of canvases are there?

There are 5 types of canvases:

1.     Content: (Default Canvas) A content canvas is the required on each window you create.

2.     Stack Canvas: you can display more than one stack canvas in a window at the same time.  

3.     TAB Type: In Tab canvas that have tab pages and have one or more then tab page. 

4.     Horizontal Tool bar: Horizontal Toolbar canvases are displayed at the top of the window, Just Under the Main Menu Bar.

5.     Vertical Tool bar: While vertical Toolbar are displayed along the Left Edge of the window.