# Set/Clear MBF\_TABSTOP Property

> [HTML Version](setclearmbf_tabstop.htm)

_Added November 2013_

The opcodes CTLOP\_TABSET and CTLOP\_TABCLR are used for setting and clearing the MBF\_TABSTOP property of a control:

**xcall AUI, AUI\_CONTROL, CTLOP\_TABSET, ctlid     \! set MBF\_TABSTOP for ctlid**

**xcall AUI, AUI\_CONTROL, CTLOP\_TABCLR, ctlid     \! clr MBF\_TABSTOP for ctlid**

AUI\_EVENTWAIT should skip over controls that do not have the MBF\_TABSTOP property when using the keyboard navigation controls.

Note: the rules for auto-initializing the MBF\_TABSTOP property when creating new controls are a bit vague; these opcodes allow you to be explicit.

Also note: the control dump contains a column making it more obvious which controls have the tabstop property, which show up with a numeric value of the control number offset by 5000. Currently there is no way to change this table order, which generally matches the order in which the controls were created.

**History**

2013 November, A-Shell 6.1.1368:  Added opcodes to A-Shell.