Re: ListBox with ctrl-c and other ctrl keys.

I still have one problem.

I successfully implemented OnKeyDown to capture ctrl-c and I
successfully implemented the clipboard stuff.

What I want to do is to disable the default mechanism. In a ListBox when
you type ctrl-any letter. Whatever you have selected is unselected and a
new selection is made of the top most line that begins with whatever
ctrl-letter you are using. I don't want that. I want to disable that
functionality.

How do I do that?

FYI: here is my OnKeyDown function in my subclassed ListBox. Instead of
handling the clipboard in the subclass, I chose to pass it to the dialog
to deal with. I have a reason to do that.

void ZScListBox::OnKeyDown(
UINT nChar,
UINT nRepCnt,
UINT nFlags
)
{
    switch(nChar)
    {
    case 65: // a
       // check if ctrl is depressed
       if (0x8000 == (GetKeyState(VK_CONTROL) & 0x8000))
       {
          // ctrl-a is pressed

          // tell the parent
          // send the ID of the list box
          GetParent()->SendMessage(SC__MESSAGE_LIST_BOX_CTRL_A, 0,
GetDlgCtrlID());
       }
       break;

    case 67: // c
       // check if ctrl is depressed
       if (0x8000 == (GetKeyState(VK_CONTROL) & 0x8000))
       {
          // ctrl-c is pressed

          // tell the parent
          // send the ID of the list box
          GetParent()->SendMessage(SC__MESSAGE_LIST_BOX_CTRL_C, 0,
GetDlgCtrlID());
       }
       break;

    case 17: // ctrl
    default:
       // call base class
       CListBox::OnKeyDown(nChar, nRepCnt, nFlags);
       break;
    };
}

Ajay wrote: