This control function deletes one or more columns in the scrolling region, starting with the column that has the cursor.
Available in: VT Level 4 mode only
is the number of columns to delete.
Default: Pn = 1.
As columns are deleted, the remaining columns between the cursor and the right margin move to the left. The terminal adds blank columns with no visual character attributes at the right margin. DECDC has no effect outside the scrolling margins.