InstallMate sets this variable to the installer's verbosity level, which is one of the following values (they correspond to the /q command line option):
|0||Not quiet; normal user interface is shown|
|1||Quiet; show progress messages but don't interact with the user|
|2||Hidden; don't show anything at all|
You can refer to this variable as <TsuQuiet>. In conditional expressions you can omit the brackets and use tests like TsuQuiet to test for a silent installation. This variable is initialized from the command line options and used internally by the installer. You may change it during the installation process by assigning a new value to it using the Set Variable action.