CONTROL
- Introduction to CTRL
- CONTROL Classes
- Types of Control Functions
- Control graphics
- CONTROL Functions
  - Funtions A
  - Funtions B
  - Funtions C
  - Funtions D
  - Functions E
  - Functions F
  - Functions G
  - Functions H
  - Functions I
  - Functions J
  - Functions K
  - Functions L
    - langEditor()
      Opens a language editor (langEditor)
    - LayerOff()
      Hides a layer.
    - LayerOffPanel()
      Hides a layer in a particular panel.
    - LayerOffPanelInModule()
      Hides a layer in a particular panel and module.
    - LayerOn()
      Displays a layer.
    - LayerOnPanel()
      Displays a layer in a particular panel.
    - LayerOnPanelInModule()
      Display a layer in a particular panel and particular module.
    - ldexp()
      Calculates x*2^n.
    - lineSelector()
      Opens the line type selector and writes a line type selected there to a variable.
    - log()
      Calculates the natural logarithm
    - log10()
      Calculates the decimal logarithm
    - LoginDialog()
      The function is used by LogoutDialog() to start the login dialog.
    - LogoutDialog()
      The function is used to open the logout dialog and to go to a new login dialog.
    - lookupSorted()
      Fast (binary) lookup in a sorted dyn_string.
  - Functions M
  - Functions N
  - Functions O
  - Functions P
  - Functions Q
  - Functions R
  - Functions S
  - Functions T
  - Functions U
  - Functions V
  - Functions W
  - Functions X
  - Functions Y
  - Functions Z
- CTRL Debugger
  With the CTRL Debugger you can debug the programming language Control.
- CtrlExtension, basics

LoginDialog()

The function is used by LogoutDialog() to start the login dialog.

Synopsis

LoginDialog(int closeModules, string loginModule, string picture);

Parameters


Parameters	Specification	Description
closeModules	0 1 2 3	Opens a new module for Login, without closing open modules Opens a new module for Login and closes open modules Uses the module in use without closing open modules Uses the module in use and closes open modules
loginModule		Name of the Login module (for example, login.pnl)
picture		Name of the required logo (for example, WinCC_OA.gif)

Return value

None

Description

The function opens the Login dialog. In this dialog, you can select an operating language from a combo box after entering the user name and pressing Enter.

Then a function afterLogin() will be called that resides in the CTRL Lib login.ctl. This lib can be defined in the project itself to allow opening its own modules after login. In the dialog (3rd parameter), you can display your own gif logo that must be located in the pictures directory.

If you want to use your own logo in the login dialog, first copy it to the project directory. Then enter your own parameter for the gif image in your login module, for example, the login.pnl with the panel attributes > On opening.

Example

main()
{
  LoginDialog(0,"LOGIN",""); //open panel "LOGIN"
}

Assignment

panel.ctl

Availability

UI