DCTag SDK: dc_tag_open

Open a exist tag in the DataCenter with the specified name.

Even the tag would be opened is not present in the DataCenter, this function also return a valid handle, but if you read the tag you would get a exception quality code.

Parameters

[in]	tag_name	Specify the name of the tag you want to add to the DataCenter.
[in]	tag_context	The context related to the tag opened, it will be passed by the update callback function.

Returns

On success, a valid tag handle is returned, otherwise NULL is returned.

Examples:

dc_tag_read.c, dc_tag_read_subscription.c, dc_tag_update.c, and dc_tag_write.c.