The functions with the ending U are intended to create compatibility with 64-bit integer numbers (1C 7th version). This ending indicates that the function will get or return all values as usual 32-bit integer numbers (signed integer).

All duplicated functions and properties are interchangeable. If your application can support 64-bit integer numbers, it is recommended to use the functions which support this digital capacity, that is without U ending.

Always use homogeneous functions. It means, if you are working with 64-bit integer numbers, use them throughout the application. The same is for 32-bit systems.

For 64-bit operating systems there is a special component – WialonActiveX64. It works only with 64-bit applications. For 32-bit applications installed on 64-bit OS, use 32-bit component WialonActiveX.

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