2 Visual Components Manuals

The comparative value is determined according to the setting in the 'Password level' field. This must be set in
the editor during the creation phase.
4.7.4.2 Entering Passwords
Visual Components provides two methods for entering passwords. The first method allows password operation
to be configured in Visual Components during the creation phase. The second possibility entails evaluating the
actual input using the controller application.
Both fields are inserted in the Visual Components picture editor. After selecting the icon
(shown here to the left) from the toolbar, this menu appears.
Evaluating passwords can be applied by selecting Input String. A variable is connected
which writes the password to a string variable or byte array using echo characters (i.e.
*****). The input string is evaluated in the application program.
Password logic is managed in Visual Components with the Input Password option. In
contrast to string input, however, this method is limited to the number of password levels.
After inserting the desired input field, the 'Properties' dialog box appears to edit it. 'Properties' can also be
opened by double−clicking on an existing input field.
4.7.4.2.1 Formatting the Input
Password input essentially supports the same positioning, formatting, and colors as string input fields (see also
Text Input). The maximum length of a password field is 6 characters. This is also the maximum length for
adjustable passwords.
Additionally, the Echo character field determines which characters should be used to display on the screen in
place of the entered password characters (for security reasons, actual character input is not directly visible).
4.7.4.2.2 Connecting Variables
Introduction to Visual Components 2.3
A numeric variable has to be connected in the 'Destination (Password) Data Point' field. The input field
recognizes the possible passwords and converts them to the appropriate authorization level. The variables
connected here can be used directly as password variables for input fields, as described above. For this, the
Password value >= Level mode is used and the desired password level entered.
354 4.7.4.2 Entering Passwords