CListCtrl选择

Question

I'm trying to do something that I think is simple but I can't seem to make it work!

I have a CListCtrl and I want to select the last element in the list if the user clicks in the view empty space. I can do that just by calling Select(lastElementInList) , but the element that was previously selected and that is now unselected still has a "bounding rectangle" around it.

The code that Implements this is as follows:

    int nSel = GetNextItem(-1, LVNI_SELECTED);
    if (nSel != -1)
        SetItemState(nSel, 0, LVIS_SELECTED);

    Select(lastElementInList);

Any hints? What am I missing?

Answer 1

The "bounding rectangle" you see indicates that the element currently is "focused" , ie. in a state where a user interaction, such as pressing the down and up arrows, would start off from this point.

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Change focused element

To move focus to your newly selected element you'll have to use SetItemState together with LVIS_FOCUSED , as in the below example:

if (nSel != -1)
    SetItemState (nSel, ~LVIS_FOCUSED, LVIS_FOCUSED);          // (1)

SetItemState (lastElementInList, LVIS_FOCUSED, LVIS_FOCUSED);  // (2)

// (1) -> Remove focus from `nSel`
// (2) -> Add focus to `lastElementInList`