GPS Application

8/28/2008

This code sample is named GPS. It demonstrates how to use managed code to write a C# Windows Mobile Global Positioning System (GPS) application. This code sample demonstrates how to wrap the native GPS APIs in a C# class. It demonstrates how to use "Platform Invoking" (PInvoke) to make calls to unmanaged APIs (in this case, CreateProcess).

Feature Area

• Windows Mobile Features (Managed)

Relevant APIs

• GPS Intermediate Driver Reference
• PInvoke
• System.Runtime.InteropServices
• System.Threading Namespace
• System.Windows.Forms Namespace

Usage

To run the code sample

1. Navigate to the solution file (*.sln), and double-click it. By default, the solution files are copied to the following folders:

   C:\Program Files\Windows Mobile 6 SDK\Samples\PocketPC\CS\GPS

   Microsoft Visual Studio 2005 launches and loads the solution.

2. Build the solution (Ctrl+Shift+B).

3. Deploy the solution (F5).

Remarks

The mobile device supports GPS hardware, and make sure that the GPS hardware is setup correctly using the GPS Control Panel in Settings.

Classes

• Gps
  The interface to the managed GPS API. use this class to open, close, and query the device state, and to query the position data from your GPS hardware.

• GpsPosition
  Contains the GPS position data received from the GPS hardware.

• GpsDevice
  Contains the GPS device state data received from the GPS hardware.

• Utils
  Native memory allocation utilities.

Development Environments

SDK: Windows Mobile 6 Professional SDK and Windows Mobile 6 Standard SDK

Development Environment: Visual Studio 2005.

ActiveSync: Version 4.5.

See Also

Concepts

Code Samples for Windows Mobile

Other Resources

GPS Intermediate Driver Reference
PInvoke
System.Runtime.InteropServices
System.Threading Namespace
System.Windows.Forms Namespace