Multiple Passwords

[Bruce L]

When multiple password levels are needed, there are only two choices. You can create a Password Entry Button for each password level or use a Numeric Entry and compare the entered password against the password levels in the logic to set the desired levels. However, the negative to using the Numeric Entry for passwords is that the digits that are entered on the screen while the users touches the screen. This can be a BAD problem.

Here is a sample program that will draw a black line on the screen that will hide the digit as they are entered. This program is setup for a 4 digit password and uses the Simple (Back) Keyboard Screen. The sample program has a normal Numeric Entry Button to show that it will not blank out the digits unless it is programmed to do so.

When the Simple Keyboard Screen is open, the logic looks at the pixels on the screen to detect when a digit is being entered. Each time a digit is entered, the logic will draw the blank line over the display. Each of the four digits will be covered as they are typed. The logic also monitors the area over the "Back" button and will remove the black line covering the digit if the user presses the "Back" button.

Since the Numeric Entry Button will display the number that was just entered from the Entry Screen, this logic will hide the button if it equals one of the passwords. There is a "Clear Password" button that will reset the password integer and un-hide the Password button again.

The sample shows some buttons that will only show when the desired password level is entered. There are two passwords in this sample (1111 and 2222).

Note: The logic detects the screen that is being displayed and the area where the Password Entry button is located. These variables will have to be changed to reflect where the Password button is located on your program. This was logic will not work on the Complex keyboard without modifying the pixel area that it monitors for the digits and Back keys.

This is a starting point to customize to meet your needs. Hope you find it helpful.

Hidden Multi Password Entry.vlp

[Ofir]

Hi Bruce,

Attached is example application for multiple ID & passwords.

This application based on a DT which contains the IDs and password and then according to the ID it will search for the right password.

This applicaiton using password variable and the digits entered are not visible. password.vlp