Address
of the variable that receives the value that specifies the action taken
by the DosOpen function.
If DosOpen fails, this value has no meaning. Otherwise, it is one of the
following values:
- FILE_EXISTED
File already existed. This is always returned on the successful open of
a device.
- FILE_CREATED
File was created.
- FILE_TRUNCATED
File existed and was changed to a given size (file was replaced).