RxUtilEx - Sys2Seek

Move the read/write pointer to the specified location in an open file/stream; files larger than 2GB are supported (this function is a wrapper to DosSetFilePtrL).

Arguments
REXX ARGUMENTS: 1. File handle (returned by Sys2Open). (REQUIRED) 2. The signed distance in bytes to move. (REQUIRED) 3. Move method, one of: B = Beginning of file C = Current position (DEFAULT) E = End of file

Return Value
REXX RETURN VALUE: The new file position, in bytes.