DCTag SDK: dc_tag_update

Update one or more tags.

This function is called by tag provider only. Whenever the value or quality of tags added by the tag provider changed, the tag provider should call this function to make the changes pushed to all data users through the data center.

Parameters

[in]	tag_handles	The tag handle array contains all tag handles to be updated.
[out]	tag_values	The tag value array contains all tag value to be updated, be sure the count of the tag value equals to or larger than the count of the tag handle.
[in]	tag_count	The count of the tag handle in the tag_handles.

Returns

On success, zero is returned, otherwise an error code is returned. please refer to the enum dc_tag_error_code for the error code description.

Examples:

dc_tag_update.c.