CListCtrl control main events and handling of lvn_itemchanged messages and mouse double-click List item Events

MFC CListCtrl Select a row, the message is which. I can't remember. Find an article, more useful:

Http://www.cnblogs.com/hongfei/archive/2012/12/25/2832806.html

Lvn_begindrag the left mouse button is being triggered for drag-and-drop operations (resulting when the left mouse button starts dragging items in a list view control)

Lvn_beginrdrag The right mouse button is being triggered for drag-and-drop operations (resulting when the right mouse button starts dragging items in a list view control)

Lvn_beginlabeledit start editing the text of an item

Lvn_columnclick click a column (resulting when the mouse clicks the column header of a list view control)

Nm_click when the mouse clicks the list view Control

Lvn_columnclick Click Columns

Lvn_deleteallitems Delete all items

Lvn_deleteitem Deleting an item

NM_DBLCLK occurs when the mouse double-clicks the list view Control

Lvn_endlabeledit ending edits to item text

Lvn_getdispinfo request information that needs to be displayed

Lvn_getinfotip additional text information that is requested to be displayed in the ToolTip window

Lvn_hottrack Mouse over an item

Lvn_insertitem When you insert a project into a list view control

Lvn_itemactivate activating an item

Lvn_itemchanged an item has changed

Lvn_itemchanging a project is changing

Nm_killfocus occurs when the View Table column chart control loses focus

Lvn_keydown a key is pressed

Lvn_marqueebegin Start a border selection

Nm_outofmemory When a memory overflow occurs

Lvn_odcachehint the contents of the display area of the virtual list control have changed

Lvn_odstatechanged an item or a range of items in a control of a virtual list has changed

Lvn_odfinditem requires the owner to find a specific callback item

Nm_rclick when the right mouse button is clicked on a list view control

NM_RDBLCLK when the right mouse button is double-clicked on a list view control

Nm_setfocus when a list view control receives focus

Lvn_setdispinfo the parent window must update the information maintained by the control for the item

Annotations:

Hdn:header Notify
Lvn:listview Control Notify
Nm:notify Message
Tvn:treeview Control Notify

Handling of lvn_itemchanged messages

Message handler functions:

void C***dlg::onitemchangedlist (nmhdr* pnmhdr, lresult* pResult) 
{
nm_listview* Pnmlistview = (nm_listview*) PNMHDR;

if (pnmlistview->uchanged==lvif_state)
{
if (pnmlistview->unewstate & lvis_selected)
   {
    / /processing content
    int nitem=pnmlistview->iitem;
    CString value[6];
    for (int i=0;i<6;i++)
    {
     value[i]=m_list.getitemtext (nitem,i);}}
}
*presult = 0;
}

The two if conditional sentences in the message handler must be there, otherwise there may be multiple entry handling issues.

Mouse double-click on the handling of list item events

Response NM_DBLCLK Message:

void Cdissalarydlg::ondblclklist (nmhdr* pnmhdr, lresult* pResult) 
{
    Nm_listview *pnmlistview= (nm_listview *) Pnmhdr;
    int nitem=pnmlistview->iitem;
    if (nitem>=0 && nitem<m_list.getitemcount ())//Determine if the double-click position is above the list item with data
    {
        ...
    }

    *presult = 0;
}

The IF statement in the

      Message handler function is important to determine whether the double-click position is above the list item with the data. Because the NM_DBLCLK message is a CListCtrl control (overall) message, the message is generated if the event is executed within the scope of the CListCtrl control, not necessarily on the list item that has the data.