How to use Open in VB6 to read/write files
Posted: Wed Jul 21, 2010 6:32 pm
Open pathname For mode [Access access] [lock] As [#]filenumber [Len=reclength]
The Open statement syntax has these parts:
pathname
Required. String expression that specifies a file name — may include directory or folder, and drive.
mode
Required. Keyword specifying the file mode: Append, Binary, Input, Output, or Random. If unspecified, the file is opened for Random access.
access
Optional. Keyword specifying the operations permitted on the open file: Read, Write, or Read Write.
lock
Optional. Keyword specifying the operations restricted on the open file by other processes: Shared, Lock Read, Lock Write, and Lock Read Write.
filenumber
Required. A valid file number in the range 1 to 511, inclusive. Use the FreeFile function to obtain the next available file number.
reclength
Optional. Number less than or equal to 32,767 (bytes). For files opened for random access, this value is the record length. For sequential files, this value is the number of characters buffered.
The Open statement syntax has these parts:
pathname
Required. String expression that specifies a file name — may include directory or folder, and drive.
mode
Required. Keyword specifying the file mode: Append, Binary, Input, Output, or Random. If unspecified, the file is opened for Random access.
access
Optional. Keyword specifying the operations permitted on the open file: Read, Write, or Read Write.
lock
Optional. Keyword specifying the operations restricted on the open file by other processes: Shared, Lock Read, Lock Write, and Lock Read Write.
filenumber
Required. A valid file number in the range 1 to 511, inclusive. Use the FreeFile function to obtain the next available file number.
reclength
Optional. Number less than or equal to 32,767 (bytes). For files opened for random access, this value is the record length. For sequential files, this value is the number of characters buffered.