Juniper Systems LandMark Mobile - Manual (Page 69)

LandMark Mobile User’s Manual 69
LMCE_API BOOL GetInternalGPS
Argument for Function Function Affected
(DWORD &tic, Unique ID
double &r_lat, Latitude in Decimal Degree
double &r_lon, Longitude in Decimal Degree
double &r_alt, Elevation in meters
double &r_pdop, GPS data
double &r_ehe, GPS error in meters
int &quality); 2D, 3D, etc.
Internal GPS — Pushed Data
The only difference in this function compared to pulling data,
is in the protocol. Once the third part has called for data, the
function blocks the calling thread/process until LandMark
Mobile signals when new data are processed. There is not a
three second delay after this function is called, but the function
listens for a QUIT from LandMark Mobile to tell the third party
program that the data are ready.
LMCE_API BOOL GetInternalGPSRT
Argument for Function Function Affected
(DWORD &tic, Unique ID
double &r_lat, Latitude in Decimal Degree
double &r_lon, Longitude in Decimal Degree
double &r_alt, Elevation in meters
double &r_pdop, GPS data
double &r_ehe GPS error in meters
int &quality); 2D, 3D, etc.
Masked GPS — Pulled
The Masked GPS functions give more formatting options to the
third party application. The Get Mask GPS filters the GPS data
according to the preferences set in LandMark Mobile (refer to the
Configuration section of LandMark Mobile). The protocol is the
same as the Pulled internal GPS function.
Check the GPS data (“mask_msg” argument) to see if it is masked
before using the data being received. The mask values are
described after the function definition.