Casio IT-800 Series Software Manual page 142

Figure 2-14
The functions relevant to the GPS intermediate driver API are as follows.
Table 2.108
Function
GPSCloseDevice
GPSGetDeviceState
GPSGetPosition
GPSOpenDevice
Note:
The terminal does not support the GPS Intermediate driver's DeviceIOControl function.
Closes the GPS intermediate driver and connects to the GPS device.
Retrieves the status of the GPS module.
Retrieves GPS positioning data.
Opens the GPS intermediate driver and connects it to the GPS device.
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Description