This message is sent by an application when the selection in a list box is about to change. The parent window of the list box receives this message through the WM_COMMAND message. 你的ListBox控件的父窗口是哪个?
This message is not sent if the LB_SETCURSEL message changes the selection. This message applies only to a list box that has the LBS_NOTIFY style. For a multiple-selection list box, the LBN_SELCHANGE message is sent whenever the user presses an arrow key, even if the selection does not change.
你的ListBox控件的父窗口是哪个?