The CommandStateChangeConstants interface has the fields shown in the following table.
Field |
Value |
Description |
CSC_UPDATECOMMANDS |
-1 |
The enabled state of a toolbar button may have changed; the Enable parameter should be ignored. |
CSC_NAVIGATEFORWARD |
1 |
The enabled state of the Forward button has changed. |
CSC_NAVIGATEBACK |
3 |
The enabled state of the Back button has changed. |