Language - C Sharp: Difference between revisions

From Phidgets Support
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By following the instructions for your operating system and compiler above, you probably now have a working example and want to understand it better so you can change it to do what you want.  This teaching section has resources for you to learn from the examples and write your own.
By following the instructions for your operating system and compiler above, you probably now have a working example and want to understand it better so you can change it to do what you want.  This teaching section has resources for you to learn from the examples and write your own.


Next, comes our API information.  These resources outline the C/C++ Phidget functions:
Next, comes our API information.  These resources outline the C# Phidget functions:


{{UsingAPhidgetInCodeGeneral|both of which are available in C/C++|[http://www.phidgets.com/documentation/Phidget21_C_Doc.zip C/C++ API]}}
{{UsingAPhidgetInCodeGeneral|both of which are available in C#|[http://www.phidgets.com/documentation/Phidget21.NET.zip C/C++ API]}}


===Example Flow===
===Example Flow===


{{ExamplePseudocode|In C/C++, you can name these '''event''' functions whatever you like.  You will then pass them as function pointers to the Phidget library below in the Main Code section.  This hooks them into the actual events when they occur. <br>  
{{ExamplePseudocode|In C#, you can name these '''event''' functions whatever you like.  You will then pass them as function pointers to the Phidget library below in the Main Code section.  This hooks them into the actual events when they occur. <br>  
In the example code, the event functions common to all Phidgets are called things like '''AttachHandler()''' and '''DetachHandler()''', etc.<br><br>
In the example code, the event functions common to all Phidgets are called things like '''AttachHandler()''' and '''DetachHandler()''', etc.<br><br>
Some event functions will be specific to each device, like when a tag is read on an RFID board, or when a sensor value changes on an Interface Kit.
Some event functions will be specific to each device, like when a tag is read on an RFID board, or when a sensor value changes on an Interface Kit.
Other functions are given in the examples to show you more detail on using your Phidget.  For example, '''DeviceInitialize()''' will show what needs to be set up for your Phidget before using it.
Other functions are given in the examples to show you more detail on using your Phidget.  For example, '''DeviceInitialize()''' will show what needs to be set up for your Phidget before using it.
|Creating a Phidget software object in C is specific to the Phidget.  For a Phidget Spatial, for example, this would involve creating an object with the <code>CPhidgetSpatialHandle</code> type, and then initializing it using the <code>CPhidgetSpatial_create</code> function.  The examples show how to do this and other API functions.<br><br>
|Creating a Phidget software object in C## is specific to the Phidget.  For a Phidget Spatial, for example, this would involve creating an object with the <code>CPhidgetSpatialHandle</code> type, and then initializing it using the <code>CPhidgetSpatial_create</code> function.  The examples show how to do this and other API functions.<br><br>
Other C calls follow a similar syntax - <code>CPhidgetXXX_function</code>, where XXX is the name of your device, and function is an action available from the API for your specific Phidget.|
Other C# calls follow a similar syntax - <code>CPhidgetXXX_function</code>, where XXX is the name of your device, and function is an action available from the API for your specific Phidget.|
[http://www.phidgets.com/documentation/Phidget21_C_Doc.zip C/C++ API]}}
[http://www.phidgets.com/documentation/Phidget21.NET.zip C# API]}}


==Common Problems and Solutions/Workarounds==
==Common Problems and Solutions/Workarounds==


Here you can put various frequent problems and our recommended solutions.
Here you can put various frequent problems and our recommended solutions.

Revision as of 23:09, 11 January 2012

Icon-CSharp.pngC# is a modern, object-oriented programming language developed by Microsoft.

Introduction

Template:LanguageSupport

Quick Downloads

Just need the C/C++ drivers, libraries, and examples? Here they are:

C# API Documentation:

C# Example Code:

Libraries and Drivers:

Getting started with C#

If you are new to writing code for Phidgets, we recommend starting by running, then modifying existing examples. This will allow you to:

  • Make sure your libraries are properly linked
  • Go from source code to a test application as quickly as possible
  • Ensure your Phidget is hooked up properly

Instructions are divided up by operating system. Choose:

Windows(2000/XP/Vista/7)

Libraries

Description

C# programs on Windows depend on three files, which the installers above put onto your system:

  • phidget21.dll contains the actual Phidgets library, which is used at run-time. If you used our installer, it's already correctly placed in C:\Windows\System32. It can be manually installed - check our Manual Installation instructions.
  • Phidget21.NET.dll is used...
  • Phidget21.NET1.1.dll is used...

Running the examples and writing your own code can be fairly compiler-specific, so we include instructions for each compiler below.


Visual Studio

If you are using Visual Studio 2005/2008/2010, please start by downloading the C# Examples. These examples were written in Visual Studio 2005 and 2008, but Visual Studio 2010 will easily upgrade them.

If you are using Visual Studio 2003, please start by downloading the Generic C# examples.

Microsoft makes free versions of Visual Studio available known as Express Editions. The Express editions are suitable for most applications, but are limited in features for more complex applications. Please see Microsoft Visual Studio for more information.


Visual Studio 2005/2008/2010

Use Our Examples

If you are opening the Phidget examples in Visual Studio 2010, you will need to go through the Visual Studio Conversion Wizard to convert the 2005 or 2008 project.

VS2005 Conversion Wizard.PNG

To run the examples, you first download them from above and unpack them into a folder. To load all projects in Visual Studio, go to File | Open | Project | Solution, and open Visual Studio Phidgets Examples.sln in the VCpp folder of the examples.

This will load all of the examples available for C#, and then you can set your main project to be the one that matches your device. If you aren't sure what the software example for your device is called, check the software object listed in the Getting Started guide for your device.

The only thing left to do is to run the examples! Click on Debug -> Start Debugging. Please note that the projects, by default try to find the phidget21.h and phidget21.lib in the $(SystemDrive)\Program Files\Phidgets. If you have these files installed in another location, please change the path accordingly. Please see the next section for details.

VS2005 Run.PNG

Once you have the C/C++ examples running, we have a teaching section below to help you follow them.

Write Your Own Code

When you are building a project from scratch, or adding Phidget function calls to an existing project, you'll need to configure your compiler / development environment to properly link the Phidget C/C++ libraries. To begin:

  • Generate a new Visual C++: Win32 Console Application project with a descriptive name such as PhidgetTest.


VS2005 New Project.PNG

Next, select Console Application

VS2005 New Project 2.PNG

  • Open the project properties window.
  • Navigate to Configuration Properties | C/C++.
  • Add "C:\Program Files\Phidgets" to the additional directories field. This step will find the phidget21.h file in the corresponding directory. If the file is placed in another location, please adjust the path accordingly.


VS2005 Header.PNG

  • Navigate to Configuration Properties | Linker | Input.
  • Edit the additional dependencies and add "C:\Program Files\Phidgets\phidget21.lib". This step will find the phidget21.lib file in the corresponding directory. If the file is placed in another location, please adjust the path accordingly.


VS2005 Library.PNG

The project now has access to the Phidget21 function calls and you are ready to begin coding.

Then, in your code, you will need to include the Phidget library: 

  #include <phidget21.h>

The same teaching section which describes the examples also has further resources for programming your Phidget.

Visual Studio 2003

Start by downloading the C# Examples. You can import the simple examples into a Visual Studio 2003 C# project.

Use Our Examples


Download the examples from above and unpack them into a folder. Here, you can find example programs for all the devices. If you aren't sure what the software example for your device is called, check the software object listed in the Getting Started guide for your device. You will need this example source code to be copied into your C++ project later on.

Next, a new project will need to be created.

  • Generate a new Visual C++ empty project(.NET) with a descriptive name such as PhidgetTest.


VS2003 New Project.PNG

To import the example program into your project, please:

  • Create a new C++ file by adding a new item to the source files folder.


VS2003 New File.PNG

VS2003 New File 2.PNG

  • An empty C++ file will pop up. Please copy and paste the contents of the example program into here.


VS2003 Source.PNG

Next, the project setting needs to be set up.

  • Open the project properties window.
  • Navigate to Configuration Properties | C/C++.
  • Add "C:\Program Files\Phidgets" to the additional include directories field. This step will find the phidget21.h file in the corresponding directory. If the file is placed in another location, please adjust the path accordingly.


VS2003 Header.PNG

  • Navigate to Configuration Properties | Linker | Input.
  • Add "C:\Program Files\Phidgets\phidget21.lib" to the additional dependencies field. This step will find the phidget21.lib file in the corresponding directory. If the file is placed in another location, please adjust the path accordingly.


VS2003 Library.PNG

The project now has access to the Phidget21 function calls and you are ready to begin coding.

Now, you can run the example. Click on Debug | Start Without Debugging.

VS2003 Run.PNG

Once you have the C/C++ examples running, we have a teaching section below to help you follow them.

Write Your Own Code

When you are building a project from scratch, or adding Phidget function calls to an existing project, you'll need to configure your compiler / development environment to properly link the Phidget C/C++ libraries. Please see the previous section for instructions.

Mono

Start by downloading the Generic C# Examples.

Use Our Examples

Download the examples from above and unpack them into a folder. Here, you can find example programs for all the devices. If you aren't sure what the software example for your device is called, check the software object listed in the Getting Started guide for your device. You will need this example source code to be copied into your Dev C++ project later on.

In order to control Phidgets with MonoDevelop Once you have the C# examples running, we have a teaching section below to help you follow them.

Write Your Own Code

When you are building a project from scratch, or adding Phidget function calls to an existing project, you'll need to configure your compiler / development environment to properly link the Phidget C# libraries. Please see the previous section for instructions.


MonoDevelop

Start by downloading the Generic C# Examples.

Use Our Examples

Download the examples from above and unpack them into a folder. Here, you can find example programs for all the devices. If you aren't sure what the software example for your device is called, check the software object listed in the Getting Started guide for your device. You will need this example source code to be copied into your Dev C++ project later on.

In order to control Phidgets with MonoDevelop Once you have the C# examples running, we have a teaching section below to help you follow them.

Write Your Own Code

When you are building a project from scratch, or adding Phidget function calls to an existing project, you'll need to configure your compiler / development environment to properly link the Phidget C# libraries. Please see the previous section for instructions.

Mac OS X

C# has excellent support on Mac OS X through the gcc compiler.

The first step in using C# on Mac is to install the Phidget libraries. Compile and install them as explained on the getting started guide for your device. Then, the OS - Mac OS X page also describes the different Phidget files, their installed locations, and their roles....

Linux

C# has support on Linux through the Mono framework.

The first step in using C# on Linux is to install the Phidget libraries. Compile and install them as explained on the main Linux page. That Linux page also describes the different Phidget files, their installed locations, and their roles.

Follow The Examples

By following the instructions for your operating system and compiler above, you probably now have a working example and want to understand it better so you can change it to do what you want. This teaching section has resources for you to learn from the examples and write your own.

Next, comes our API information. These resources outline the C# Phidget functions:

Template:UsingAPhidgetInCodeGeneral

Example Flow

Template:ExamplePseudocode

Common Problems and Solutions/Workarounds

Here you can put various frequent problems and our recommended solutions.

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