This code specifies that the user has double-clicked a string in the list box of a combo box. The control's parent window receives this code through a WM_COMMAND message from the control.
Parameter |
Description |
wParam |
Specifies the control ID of the combo box. |
|
lParam |
Contains the combo-box window handle in its low-order word and the CBN_DBLCLK code in its high-order word. |
This message can only occur for a combo box with a list box that is always visible. For combo boxes with drop-down list boxes, a single closes the list box and so a double-click cannot occur.