Begins uploading a file to the server.
| Visual Basic | 
|---|
| Public Function UploadFileBlockBegin() As Long | 
This method is available only if M-Files API is used in the server interface mode.
| Note This method requires support for 64-bit data types. Use UploadFileBlockBegin_32bit in development environments that do not support these data types such as VBScript. Development environment should not be confused with the operating system: This method can be used in 32-bit operating systems. |