Selection change event for MFC CListCtrl, caused by mouse/keyboard input only.

Question

hi, i am using an mfc ListCtrl, is there anyway to know if a selection change was caused by mouse/keyboard input rather than a programatic change? i am after the same behaviour as ON_LBN_SELCHANGE for a listbox. thanks

Answer 1

AFAIK there is no way to find out this information. You know if you are sending the message to the CListCtrl so you should set a flag if you do. If the LBN_SELCHANGE message is received and the flag has NOT been set then it must have come from a keyboard/mouse.

Answer 2

You can use GetKeyState() to find out whether a key or mouse button was pressed. Do not use GetAsyncKeyState() because that API will tell you the current state of the keyboard/mouse buttons, which may have changed when you handle the LBN_SELCHANGE message. GetKeyState() however will tell you the state as it was when LBN_SELCHANGE was generated.