CBN_DROPDOWN (Windows CE 5.0)
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.
CBN_DROPDOWNidComboBox=(int)LOWORD(wParam);hwndComboBox=(HWND)lParam;
Parameters
- idComboBox
Identifier of the combo box. - hwndComboBox
Handle to the combo box.
Return Values
None.
Remarks
This message can occur only for a combo box with the CBS_DROPDOWN or CBS_DROPDOWNLIST style.
Requirements
OS Versions: Windows CE 1.0 and later.
Header: Winuser.h.
See Also
Combo Boxes Messages | SendMessage | CBN_CLOSEUP | WM_COMMAND
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