CVPORT system variable

Function Description:

The CVPORT system variable is used to change identification code in current viewport.

Type : Integer
Saved in : Drawing
Initial value : 2

System Variable Value:

Users could change current viewport by setting the CVPORT system variable, first they should meet the following conditions:
1. The specified identification code should be one active viewport code.
2. The cursor has not been locked and it could move to viewport when executing a command.
3. The Tablet mode has turned off.