<![CDATA[Curl Global Community - Try 0: Installing the Curl Development Environment]]>

<![CDATA[Curl Global Community - Try 0: Installing the Curl Development Environment]]> https://communities.curl.com/ Wed, 29 Apr 2026 19:09:25 +0000 MyBB <![CDATA[Page 4: Understanding Curl]]> https://communities.curl.com/showthread.php?tid=41 Thu, 16 Jun 2011 04:04:44 +0000 https://communities.curl.com/showthread.php?tid=41 Understanding Curl’s Characteristics

So, what are the special characteristics of the Curl language described in this manual? Let’s begin with a quick overview of Curl.

Simple Application Development Language

Curl is a Web programming language. Curl combines the special characteristics of many different languages, such as the document format and image layout capabilities of a mark-up language, the ability to describe procedures, including actions and processing, in the same way as a procedure-oriented language, and the easy re-use of modules that is afforded by object-oriented languages. Curl is the only language that combines the features of all these other languages. It greatly simplifies the development, revision, and expansion of applications.

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Reduced Server Load and Better Response

Curl can be used to create applications that perform processing on the client side. The server is only accessed when necessary. So, compared to conventional Web applications that rely on a server to perform processing, Curl greatly reduces the load on a server. Screen transitions, data addition, and the creation of graphs and forms can all be handled by the client, meaning that there is less communication with the server which leads to improved response times.

Ergonomic user interface

Curl provides a full set of user interface components for building easy-to-use applications, as well as providing capabilities such as function key assignment, and drag and drop.

Interaction with other servers and Web services

Direct system interaction is possible between Curl and other servers and Web services.

In addition to the above, Curl offers many convenient functions including online execution and printing.

Curl IDE and Curl/Pro IDE

This manual explains the development environment and programming using Curl IDE. In addition to the free Curl IDE development environment, there is also the Curl/Pro IDE version, which is available to purchase. Curl/Pro IDE is aimed at the creation and deployment of large-scale Curl applications, and incorporates additional functionality such as https support, complex concurrency, single sign-on, running with privilege, encryption and pcurl support.

A detailed explanation of the features supplied with the Curl/Pro IDE appears in the "Getting Started" section of the Curl Developer's Guide documentation that is included with the Curl IDE.]]> Understanding Curl’s Characteristics

So, what are the special characteristics of the Curl language described in this manual? Let’s begin with a quick overview of Curl.

Simple Application Development Language

Curl is a Web programming language. Curl combines the special characteristics of many different languages, such as the document format and image layout capabilities of a mark-up language, the ability to describe procedures, including actions and processing, in the same way as a procedure-oriented language, and the easy re-use of modules that is afforded by object-oriented languages. Curl is the only language that combines the features of all these other languages. It greatly simplifies the development, revision, and expansion of applications.

Interaction with other servers and Web services

Direct system interaction is possible between Curl and other servers and Web services.

Debug Options

Curl IDE incorporates debugging tools for detecting errors in applets under development. Applets in the in the directories specified on the “Debug Options” tab of the Curl Control Panel, or sub-directories, are executed in Curl IDE debug mode. Specifying “file:” allows you to debug all applets that are started locally. If an uncaught error or exception is detected, the debugger window opens. The Curl IDE debug functions cannot be used with applications that are executed from a directory that was not specified as debuggable

Select the “Debug Options” tab, and then click the “Add Location” button. The dialog box shown in Figure 0-16 appears. Input “file:”, and then click "OK". The screen shown in Figure 0-17 indicates that the debug option has been set.

Curl Control Panel

The behavior of the Curl RTE execution environment can be controlled with the Curl control panel. The functions of each tab and buttons are described below.

Curl RTE Version Information - Indicates the version number and copyright information for the Curl RTE that is installed on the client PC.
General Options - Allows you to adjust the settings for graphics rendering methods and package cache.
Security Options - Allows you to assign privileges to Curl applets stored on specified servers.
Update Options - Gives you control over automatic update of the Curl RTE.
License Options - Provides license management functions.
Debug Options - Displays only when the Curl IDE is installed. Used to specify the locations of applets that the user wishes to debug.
Shut Down - Used to shut down the Curl RTE and any currently running applets.
Help - Displays help for the Curl RTE.
Applet Display - Displays the Applet Manager.
Console Display - Displays the Curl console window.
Close - Closes the Curl Control Panel window.

Folder/File Structure of Example Applets

Starting with Try 1, each section of this manual illustrates the use of the Curl IDE through the process of working on some real Curl files. These files are made available as a series of zip files, one for each Try, that you can download and unpack on your computer. It is recommended that the example files are placed in the directory "C:\Curl". Figure 0-20 provides an outline of the contents of these zip files.

]]> Setting the Debug Options

Curl Control Panel

The behavior of the Curl RTE execution environment can be controlled with the Curl control panel. The functions of each tab and buttons are described below.

Curl RTE Version Information - Indicates the version number and copyright information for the Curl RTE that is installed on the client PC.
General Options - Allows you to adjust the settings for graphics rendering methods and package cache.
Security Options - Allows you to assign privileges to Curl applets stored on specified servers.
Update Options - Gives you control over automatic update of the Curl RTE.
License Options - Provides license management functions.
Debug Options - Displays only when the Curl IDE is installed. Used to specify the locations of applets that the user wishes to debug.
Shut Down - Used to shut down the Curl RTE and any currently running applets.
Help - Displays help for the Curl RTE.
Applet Display - Displays the Applet Manager.
Console Display - Displays the Curl console window.
Close - Closes the Curl Control Panel window.

]]> <![CDATA[Page 2: Setting up the privilege settings]]> https://communities.curl.com/showthread.php?tid=39 Thu, 16 Jun 2011 02:50:00 +0000 https://communities.curl.com/showthread.php?tid=39 Assign Special Privileges to the Working Folder

The working folder
With Curl, we can create applets that can be executed over a network, but during development it is convenient to perform execution/debugging on a local machine. In this manual, we will be using the 'Curl' directory on the C drive to hold applets under development. The following steps configure Curl to grant privileges to this location. You can, of course, use any directory in any location.

1. As shown in Figure 0-8, click start and select All Programs > Curl RTE > Curl Control Panel. The screen shown in Figure 0-9 appears.

2. Click the “Security Options” tab, and then click “This Computer”.

3. After the screen switches to that shown in Figure 0-11, click “Add Privileged Directory.” The dialog box shown in Figure 0-12 appears. Input “c:\Curl”, and then click "OK". Once the privileged directory has been added to this computer, the screen shown in Figure 0-13 appears.

Security and Privileges
Usually, Curl applets are stored on a Web server. From the server, users can download the applets, and then execute them on their PCs. If we were to allow applets unlimited access to resources such as the files stored on the hard disk of a user’s PC, or the registry, then it would be possible for malicious applets to steal or even destroy data. Curl RTE has been designed to protect a user’s PC from this kind of danger, and limits the range of client resources that can be accessed by a Curl applet. We call this range, in which access is possible, the “sandbox.”

When the user knows that an applet can be trusted, he or she can change the settings to lift this restriction from Curl RTE. Applets that are not subject to this restriction are called “privileged applets” and have full access to the client’s resources.

1. As shown in Figure 0-8, click start and select All Programs > Curl RTE > Curl Control Panel. The screen shown in Figure 0-9 appears.

2. Click the “Security Options” tab, and then click “This Computer”.

The examples given in this manual assume that applications are stored and executed locally, and not served from a Web server. If applets or other resources, such as images, are stored on a Web server or other location, privileges are still required to execute the Curl applet. With Curl, you can assign privileges to other locations using the same methods as explained in STEP 4 in which you would specify the directory containing the applet.]]> <![CDATA[Page 1: Downloading and installing]]> https://communities.curl.com/showthread.php?tid=37 Thu, 16 Jun 2011 02:40:19 +0000 https://communities.curl.com/showthread.php?tid=37 Try 0: Installing the Curl Development Environment

Begin by installing Curl IDE. If you already have the Curl IDE or Curl/Pro IDE installed on your machine, please skip to STEP 3, which is located at the bottom of this page.

Download Curl IDE

Download the Curl IDE by selecting the following link: Curl Download. After you select your operating system of Windows or Linux, you will see the following screen displayed:

At this time you must complete the information form. At this time, you can also review the system requirements.

Install Curl IDE

1. The Curl IDE installer will launch. The dialog box shown in Figure 2 appears. Click "OK" to proceed. The installer will install the Curl Runtime Environment (RTE) before it installs the Curl IDE.

2. The dialog box shown in Figure 0-3 appears. Select a destination location (the default is recommended) and click "Install".

3. After the Curl RTE installation, the installer will install Curl IDE in the destination folder.

4. After the Curl IDE installation, your system will be configured. Please wait for the next screen.

5. Finally, when everything is complete, the dialog box shown in Figure 0-6 appears. Click “Finish.”

Create a Shortcut for Starting IDE

Starting the Curl IDE is much easier if you create a shortcut on your desktop. Follow the steps below to create a shortcut on your Desktop.

Note that you can always start Curl IDE by selecting start and then All Programs > Curl IDE > Curl IDE]]> Try 0: Installing the Curl Development Environment

Begin by installing Curl IDE. If you already have the Curl IDE or Curl/Pro IDE installed on your machine, please skip to STEP 3, which is located at the bottom of this page.