Prototype and description of the function umfroundn() (Function of the unlock requiring group "Notation calculations") |

umfroundn() Rounding of a geographic coordinate given in [deg, min]. Prototype of the DLL function in C++ syntax (attend lower case!): extern "C" __declspec(dllimport) unsigned long __stdcall umfroundn( double *nGeoCoord, short nDecPlaces); Prototype of the DLL function in Visual Objects syntax: _DLL function umfroundn; nGeoCoord ref real8,; // 4 Byte nDecPlaces as short); // 2 Byte as logic pascal:geodll32.umfroundn // 4 Byte The function rounds a longitude or latitude given in [deg, min] notation (gggmm.s) so that the minute portions is not larger / equal 60. The parameters are passed and/or returned as follows: nGeoCoord Geographic coordinate (longitude or latitude) by reference. (ref) The original coordinate is overwritten with the result of the calculation. nDecPlaces Number of decimal places, on which is to be rounded returnVal In case of an error the function returns FALSE, otherwise TRUE. Unlocking This function is a component of the unlock requiring function group "notation calculations". It is unlocked for unrestricted use together with the other functions of the group by passing the unlock parameters, acquired from the software distribution company, trough the function setunlockcode(). Without unlocking only a few function calls for test purposes (shareware principle) are possible. |