# ATTR_CTRL_INDEX

Type: | Control attribute
Description: | The index of the currently selected label/value pair or tab page in the control. The index is a zero-based value that represents the position of the label/value pair or tab page in the control. If the control is a tab control, this attribute sets the currently selected tab page without giving the keyboard focus to the tab page. SetActiveTabPage sets the selected tab page and gives it the keyboard focus.
Control Types: | Binary switches, list boxes, picture rings, rings, ring slides, tab controls, trees.
Data Type: | integer