protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case 0x7b: //WM_CONTEXTMENU
{
int lp = m.LParam.ToInt32();
Point pt = new Point(((lp << 16) >> 16), lp >> 16);
pt = PointToClient(pt);
IntPtr hHdr = HeaderHandle;
var hti = new NativeMethods.HDHITTESTINFO(pt);
int item = NativeMethods.SendMessage(hHdr, NativeMethods.HeaderMessage.HitTest, 0, hti).ToInt32();
if (item != -1)
{
if (ColumnContextMenuStrip != null)
{
ColumnContextMenuStrip.Show(this, pt);
}
}
}
break;
case 0x204E: // WM_NOTIFY
WmReflectNotify(ref m);
break;
case 0x0200: // WM_MOUSEMOVE
return;
case 0x0202: // WM_LBUTTONUP
default:
break;
}
try { base.WndProc(ref m); } catch (Exception ex) { System.Diagnostics.Debug.WriteLine($"ListViewEx WndProc Error: {m} - {ex}"); }
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case 0x7b: //WM_CONTEXTMENU
{
int lp = m.LParam.ToInt32();
Point pt = new Point(((lp << 16) >> 16), lp >> 16);
IntPtr hHdr = HeaderHandle;
if (0 != NativeMethods.MapWindowPoints(IntPtr.Zero, hHdr, ref pt, 1))
{
var hti = new NativeMethods.HDHITTESTINFO(pt);
int item = NativeMethods.SendMessage(hHdr, NativeMethods.HeaderMessage.HitTest, 0, hti).ToInt32();
if (item != -1)
{
if (ColumnContextMenuStrip != null)
{
ColumnContextMenuStrip.Show(pt);
}
}
}
}
break;
case 0x204E: // WM_NOTIFY
WmReflectNotify(ref m);
break;
case 0x0200: // WM_MOUSEMOVE
return;
case 0x0202: // WM_LBUTTONUP
default:
break;
}
base.WndProc(ref m);
}
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint(int x, int y)
{
NativeMethods.HDHITTESTINFO HitTestInfo = new NativeMethods.HDHITTESTINFO();
HitTestInfo.pt = new NativeMethods.Win32Point(x, y);
int index = -1;
if (Misc.MapWindowPoints(IntPtr.Zero, _hwnd, ref HitTestInfo.pt, 1))
{
unsafe
{
index = XSendMessage.XSendGetIndex(_hwnd, NativeMethods.HDM_HITTEST, IntPtr.Zero, new IntPtr(&HitTestInfo), Marshal.SizeOf(HitTestInfo.GetType()));
}
}
// make sure that hit-test happened on the header item itself
if (index != -1 && (NativeMethods.HHT_ONHEADER == (HitTestInfo.flags & 0x000F)))
{
return(CreateHeaderItem(GetItemFromIndex(index)));
}
return(this);
}
