{"id":12709,"date":"2021-11-26T15:29:40","date_gmt":"2021-11-26T18:29:40","guid":{"rendered":"http:\/\/kb.elipse.com.br\/en\/?p=12709"},"modified":"2024-10-31T13:32:21","modified_gmt":"2024-10-31T16:32:21","slug":"how-to-alternate-viewer-between-control-and-only-modes-according-to-logged-user","status":"publish","type":"post","link":"https:\/\/kb.elipse.com.br\/en\/how-to-alternate-viewer-between-control-and-only-modes-according-to-logged-user\/","title":{"rendered":"How to alternate Viewer between Control and Only modes, according to logged user."},"content":{"rendered":"

There are two modes you can use to open the Viewer<\/a> in Elipse E3<\/a>: Viewer Control<\/a> or Viewer Only<\/a>. So, you can alternate between both Viewer modes (Control and Only) according to the user logged to the session.<\/p>\n

In order to enable this, follow the steps below:<\/p>\n

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  1. Firstly, create a Login screen where you can pass username and password parameters via SetPoints. On this screen, configure a command button to execute the script below. Set up the screen to be the Viewer’s initial screen.<\/li>\n
  2. To create the password’s setpoint, use an MSForm’s TextBox<\/a>; at PasswordChar <\/strong>property, add any chosen character, such as an asterisk (*).<\/li>\n
  3. Then, at Login button’s script, use:\n
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    1. Viewer’s LoginUser()<\/strong> method: performs the login by passing the setpoints’ Value<\/strong> property.<\/li>\n
    2. Viewer’s User<\/strong> property: checks the logged in user.<\/li>\n
    3. Viewer’s ExecuteExternalApp()<\/strong> method: opens a new Viewer in Control or Only mode.<\/li>\n
    4. Parameters at Viewer executable file: pass the name of the server, the screen to be opened in the new Viewer, and the parameters used for login (user and password).<\/li>\n
    5. Viewer’s Exit()<\/strong> method: closes the Viewer with Login screen.<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

      With these, we can create this example of script:<\/p>\n

      Sub CommandButton1_Click()\r\nViewer = \"C:\\Program Files (x86)\\Elipse Software\\Elipse Power\\Bin\\E3Viewer.exe\"\r\npServer = \"\\\\.\"\r\npOnly = \" -ReadOnly\"\r\npScreen = \" -screen ScreenOperation\"\r\nUser = Screen.Item(\"spUser\").Value\r\nPwd = Screen.Item(\"spPwd\").Value\r\npLogin = \" -PARAMS p1=\" & User & \" p2=\" & Pwd\r\nIF Application.LoginUser(User, Pwd) THEN\r\nIF Application.User = \"Admin\" THEN\r\n'Viewer Control\r\nApplication.ExecuteExternalApp Viewer, pServer & pScreen & pLogin, \"\", 3\r\nELSE\r\n'Viewer Only\r\nApplication.ExecuteExternalApp Viewer, pServer & pOnly & pScreen & pLogin, \"\", 3\r\nEND IF\r\nApplication.Exit()\r\nEND IF\r\nEnd Sub<\/pre>\n
      Finally, we will once again perform the login of the screen to be opened, reusing the parameters previously used on the login screen. Example:<\/p>\n
      Sub ScreenOperation_OnStartRunning()\r\n'Login \r\nApplication.LoginUser Application.Params(\"p1\"), Application.Params(\"p2\")\r\nEnd Sub<\/pre>\n
      Therefore, we will be able to alternate the Viewer object between Control and Only modes, according to the user logged to the application.<\/p>\n
      Related articles:<\/h3>\n
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