Running 4gl applications via LyciaWeb

There are 4 ways to run a 4gl application via LyciaWeb:

• from the connection dialog,
• with the application URL,
• from LyciaStudio, and
• from a command line.

Refer here to learn more about the application deployment.

Running 4gl applications from the connection dialog

To be able to run a 4gl application from the LyciaWeb connection dialog, you must open the connection dialog first:

Lycia with Material Design:

jquery Lycia:

In the connection dialog, you must enter these data and then press Connect:

• Instance - the AppServer instance used to deploy and run the necessary application (by default, it is default)
• Application - the name of the application.

For non-default instances you might also need to enter your username and password for the computer where the AppServer is located.

Refer here to learn more about specifying the AppServer instances.

 

Here is how the LW connection dialog looks for an application run without launching arguments:

 

From LyciaWeb, you can run applications with and without launching arguments. When running applications with some launching arguments make sure you have separated them from the application name and from one another by spaces:

 

If your application is located not in the AppServer working directory but in its sub-folder, you must specify its relative path:

You can read more about AppServer working directories here.

 

Once you have pressed Connect, LyciaWeb will launch your application:

LW connection dialog has the History tab from which you can run the applications that you have already run before:

Running 4gl applications with the application URL

If you have the application URL, you can enter it directly to the browser address line:

These application URLs can also be embedded in the website. In this case, you will run the application, e.g., by pressing the corresponding button.

Running 4gl applications from LyciaStudio

From LyciaStudio, you can run any application via LyciaWeb:

• from the program's context menu:

  <program> → <context menu> → Run As → 4GL Program with LyciaWeb

  

• from the program's context menu via Run Configurations:

  <program> → <context menu> → Run As → Run Configurations

  

• from the LyciaStudio toolbar - Run toolbar group and Run with LyciaWeb toolbar button:

  

Once you have performed any of these actions, the necessary application will be launched:

Running 4gl applications from Lycia Command Line

From a command line, you can run any deployed application with the browser you need.

For this purpose, you have to perform two simple steps:

Step 1. Move to the folder where the browser is installed.

Step 2. Pass the application URL as the parameter to the command launching the browser.

With Google Chrome, you run the application like this:

C:\Program Files (x86)\Google\Chrome\Application>chrome.exe http://localhost:9090/LyciaWeb/run/default/new_program.exe?console=page&unl=1&cache=check&timeout=0&params=-d%20informix

With , you can also run applications in the application mode - without the address line, etc.

To achieve such result, you must pass --app="application_url" as the parameter to the command launching :

C:\Program Files (x86)\Google\Chrome\Application>chrome.exe --app="http://localhost:9090/LyciaWeb/run/default/new_program.exe?console=page&unl=1&cache=check&timeout=0&params=-d%20informix"

The application launched will look like this:

Running applications by different clients

By default, you cannot run the same application simultaneously on different Lycia clients.

If the application is run by LyciaDesktop and you run it by LyciaWeb, LyciaDesktop will close.

To switch off this default behavior, you must uncheck this box – Terminate and Relaunch while launching – in the Run/Debug preferences:

Details are here.