Sets the selection in a ListBox, ComboBox or Tab control to be the specified entry or tab number.

ControlChooseIndex N, Control , WinTitle, WinText, ExcludeTitle, ExcludeText



Type: Integer

The index of the entry or tab, where 1 is the first entry or tab, 2 is the second, etc. To deselect all entries in a ListBox or ComboBox, specify 0.


Type: String, Integer or Object

The control's ClassNN, text or HWND, or an object with a Hwnd property. For details, see The Control Parameter.


Type: String, Integer or Object

A window title or other criteria identifying the target window. See WinTitle.


Type: String

If present, this parameter must be a substring from a single text element of the target window (as revealed by the included Window Spy utility). Hidden text elements are detected if DetectHiddenText is ON.


Type: String

Windows whose titles include this value will not be considered.


Type: String

Windows whose text include this value will not be considered.

Error Handling

A TargetError is thrown if the window or control could not be found, or if the control's class name does not contain "Combo", "List" or "Tab".

An Error or OSError is thrown if the change could not be applied.


To select all items in a multi-select listbox, follow this example:

PostMessage(0x0185, 1, -1, "ListBox1", WinTitle)  ; Select all listbox items. 0x0185 is LB_SETSEL.

To improve reliability, a delay is done automatically after each use of this function. That delay can be changed via SetControlDelay or by assigning a value to A_ControlDelay. For details, see SetControlDelay remarks.

Window titles and text are case sensitive. Hidden windows are not detected unless DetectHiddenWindows has been turned on.

ControlGetIndex, ControlChooseString, Choose method (GuiControl object), Control functions