The TMOpenFile API call opens a file for a future call to one of several file API functions. The ‘file_handle’ returned from this function can be used with the TMReadFile and TMWriteAddFile API calls. The filename to open is specified in 'fentry' which is in the structure FileEntry. Only the 'name' and 'extension' portions of FileEntry need to be set before calling TMOpenFile. The file must be in the current directory on the current device on the 1-Wire network specified by the session handle 'session_handle'.
For a description of the above types, see the TMEX Type Descriptions.
Specifies the session handle returned from the API function TMExtendedStartSession that specifies the desired 1-Wire network port. This parameter is required by most TMEX API functions.
Specifies a pointer to a memory location that TMEX keeps all of the state information for the 1-Wire networks. This parameter is required by most TMEX API functions.
Specifies a pointer to a memory location that contains a FileEntry structure. This structure must have the name and extension portions set before calling this API.
>= 0 => file found, and this is the file handle
<0 => TMEX File Operations Error Return Code
TMFirstFile, TMNextFile, TMReadFile