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CBN_DROPDOWN (Compact 2013)

  • Article

3/28/2014

This message is sent when the list box of a combo box is about to be made visible. The parent window of the combo box receives this message through the WM_COMMAND message.

Syntax

CBN_DROPDOWN idComboBox = (int)LOWORD(wParam); 
    hwndComboBox = (HWND) lParam;

Parameters

  • idComboBox
    Identifier of the combo box.
  • hwndComboBox
    Handle to the combo box.

Return Value

None.

Remarks

This message can occur only for a combo box with the CBS_DROPDOWN or CBS_DROPDOWNLIST style.

Requirements

Header

winuser.h

See Also

Reference

Combo Box Messages
SendMessage
CBN_CLOSEUP
WM_COMMAND