GPS intermediate driver for Windows Mobile 6

schtrenz

hi

i bought a navigator from Lexand with wm CE 6.0

1. I cant find the gps intermediate driver in the Registry, why? I guss a gpsapi.dll exists...
2. how can I use the gps from a c# form. lets say I want a form and if I click a button I get the actual GPS cordinates.

I found already this

#region PInvokes to gpsapi.dll
[DllImport("gpsapi.dll")]
static extern IntPtr GPSOpenDevice(IntPtr hNewLocationData, IntPtr hDeviceStateChange, string szDeviceName, int dwFlags);

[DllImport("gpsapi.dll")]
static extern int GPSCloseDevice(IntPtr hGPSDevice);

[DllImport("gpsapi.dll")]
static extern int GPSGetPosition(IntPtr hGPSDevice, IntPtr pGPSPosition, int dwMaximumAge, int dwFlags);

[DllImport("gpsapi.dll")]
static extern int GPSGetDeviceState(IntPtr pGPSDevice);
#endregion

and read endless articles but I dont know how to open the GPS with GPSOpenDevice and I also dont know how to get the data with GPSGetPosition

Would be really great for an code sample!

thanks
schtrenz

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

schtrenz15y ago
as I learned already there is no gpsapi.dll on the product.

but I still dont know how the GPS receiver gets the data or where does it store it?

I already found some articles that it send it to the COM port perhaps but I am not sure.

with a C# prog I see that COM3 and sometimes COM4 is open but there is no data

I retrieve it with string myData = serialPort.readExisting(); //serialPort can be COM3 or COM4
Javeed M Shaikh15y ago
are you looking for something generic than this article from C# Corner should help:

Writing Your Own GPS Applications: Part I