# Function Reference

# _GUICtrlComboBox_GetDroppedWidth

Retrieve the minimum allowable width, of the ListBox of a ComboBox

#include <GuiComboBox.au3>
_GUICtrlComboBox_GetDroppedWidth ( $hWnd )

## Parameters

$hWnd | Control ID/Handle to the control

## Return Value

Success: | the width, in pixels.
Failure: | -1.

## Remarks

The ComboBox must have $CBS_DROPDOWN or $CBS_DROPDOWNLIST style.

## Related

_GUICtrlComboBox_SetDroppedWidth, _GUICtrlComboBoxEx_GetDroppedState

## Example

    #include <GuiComboBox.au3>
    #include <GUIConstantsEx.au3>
    #include <MsgBoxConstants.au3>

    Example()

    Func Example()
        ; Create GUI
        GUICreate("ComboBox Get/Set Dropped Width (v" & @AutoItVersion & ")", 420, 296)
        Local $idCombo = GUICtrlCreateCombo("", 2, 2, 416, 296)
        GUISetState(@SW_SHOW)

        ; Add files
        _GUICtrlComboBox_BeginUpdate($idCombo)
        _GUICtrlComboBox_AddDir($idCombo, @WindowsDir & "\*.exe")
        _GUICtrlComboBox_EndUpdate($idCombo)

        ; Set Dropped Width
        _GUICtrlComboBox_SetDroppedWidth($idCombo, 500)

        ; Get Dropped Width
        MsgBox($MB_SYSTEMMODAL, "Information", "Dropped Width: " & _GUICtrlComboBox_GetDroppedWidth($idCombo))

        ; Loop until the user exits.
        Do
        Until GUIGetMsg() = $GUI_EVENT_CLOSE
        GUIDelete()
    EndFunc   ;==>Example