This method sends data to either the Positioning and Navigation device or the registry.
HRESULT SetData( hPNDevice hPN, LPVOID pBuffer, DWORD dwSize, PNData_t Data_Type );
Value |
Description |
Structure type |
| PN_DT_ACCURACY | Accuracy data | PNACCURACY |
| PN_DT_ALMANAC | Almanac data | PNALMANAC |
| PN_DT_CONFIG | Configuration data | PNCONFIG |
| PN_DT_DEVICE | Device profile data | PNDEVICE |
| PN_DT_DEVICESTATE | Device state data | PNDEVSTATE |
| PN_DT_POSITION | Longitude, latitude, and altitude position data | PNPOSITION |
| PN_DT_SETTINGS | Settings data | PNSETTINGS |
| PN_DT_STATION | Station data | PNSTATION |
| PN_DT_TIME | Time data | PNTIME |
| PN_DT_TM | Time data | PNTM |
One of the values described in the following table is returned.
Value |
Description |
| S_OK | Success |
| E_FAIL | An unspecified error occurred. |
| E_INVALIDARG | One or more arguments are invalid. |
| E_NOTIMPL | Ability to set the specified data type, such as PN_DT_VELOCITY, is not implemented. |
| PNAPI_E_DEVICEUNAVAILABLE | The Positioning and Navigation device is unavailable; it could be unplugged or dead. |
| PNAPI_E_NOACCESS | The application has insufficient permissions. |
Position and time can be set to enable the Positioning and Navigation device to find its position more quickly.
The configuration data in the PNCONFIG structure is stored in the registry by this method. The settings contained are also used to update the configuration of the Positioning and Navigation device. If any parameters do not apply to the Positioning and Navigation device, they are ignored by the position and navigation API (PNAPI).
Almanac data is GPS-specific and is received from the Positioning and Navigation device by the IPosNav::GetData method. The almanac details are stored in the registry only through the PNCONFIG structure. The almanac data should not be altered. It provides accurate GPS satellite position data. If almanac data is passed to this method, the system may acquire a GPS satellite position faster.
PNAPI enables various OEM-defined PNData_t enumerations to be passed through this method so that specific features can be made available. OEM vendors should provide details about how they have implemented their structures.
All data is received from the Positioning and Navigation device except PNCONFIG data, which is taken from the registry.
Only applications with read/write permission can use this method, except when the user wishes to change permissions.
The PNTIME structure contains an accurate time in Universal Coordinated Time (UTC), also known as Greenwich mean time (GMT).