protected unsafe override void WndProc(ref Message m)
{
switch (m.Msg)
{
// #define WM_WINDOWPOSCHANGED 0x0047
// #define SWP_NOZORDER 0x0004
case 0x47:
WINDOWPOS *ppos = (WINDOWPOS *)m.LParam;
if (ppos == null || (ppos->flags & 4) == 0)
{
DocManager.SetActiveDocument(typeof(LevelDoc), m_doc);
DocManager.SetCommandTarget(this);
}
break;
// #define WM_NCACTIVATE 0x0086
case 0x86:
if (((ushort)m.WParam) != 0)
{
DocManager.SetCommandTarget(this);
}
break;
}
base.WndProc(ref m);
}
private IntPtr ChildHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (msg == WM_WINDOWPOSCHANGING)
{
unsafe
{
WINDOWPOS *pWindowPos = (WINDOWPOS *)lParam;
pWindowPos->flags |= SWP_NOCOPYBITS;
}
}
else if (msg == WM_CHILDACTIVATE || msg == WM_MOUSEACTIVATE)
{
SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
}
else if (msg == WM_ERASEBKGND)
{
handled = true;
return(new IntPtr(1));
}
return(IntPtr.Zero);
}
protected override IntPtr WndProcOverride(HWND hwnd, WM msg, IntPtr wParam, IntPtr lParam, IntPtr id, IntPtr data)
{
IntPtr?result = null;
if (msg == WM.WINDOWPOSCHANGING)
{
unsafe
{
WINDOWPOS *pWindowPos = (WINDOWPOS *)lParam;
CopyBitsBehavior copyBitsBehavior = _hwndHost.GetCopyBitsBehavior();
switch (copyBitsBehavior)
{
case CopyBitsBehavior.AlwaysCopyBits:
pWindowPos->flags &= ~SWP.NOCOPYBITS;
break;
case CopyBitsBehavior.CopyBitsAndRepaint:
pWindowPos->flags &= ~SWP.NOCOPYBITS;
if (!_redrawMessagePosted)
{
NativeMethods.PostMessage(hwnd, _redrawMessage, IntPtr.Zero, IntPtr.Zero);
_redrawMessagePosted = true;
}
break;
case CopyBitsBehavior.NeverCopyBits:
pWindowPos->flags |= SWP.NOCOPYBITS;
break;
case CopyBitsBehavior.Default:
default:
// do nothing.
break;
}
}
}
else if (msg == _redrawMessage)
{
_redrawMessagePosted = false;
// Invalidate the window that moved, because it might have copied garbage
// due to WPF rendering through DX on a different thread.
NativeMethods.RedrawWindow(hwnd, IntPtr.Zero, IntPtr.Zero, RDW.INVALIDATE | RDW.ALLCHILDREN);
// Then immediately redraw all invalid regions within the top-level window.
HWND hwndRoot = NativeMethods.GetAncestor(hwnd, GA.ROOT);
NativeMethods.RedrawWindow(hwndRoot, IntPtr.Zero, IntPtr.Zero, RDW.UPDATENOW | RDW.ALLCHILDREN);
}
else if (msg == WM.MOUSEACTIVATE)
{
bool raiseMouseActivateCommand = _hwndHost.GetRaiseMouseActivateCommand();
if (raiseMouseActivateCommand)
{
// Raise the HwndHostCommands.MouseActivate command.
MouseActivateParameter parameter = new MouseActivateParameter();
HwndHostCommands.MouseActivate.Execute(parameter, _hwndHost);
if (parameter.HandleMessage)
{
if (parameter.Activate == false && parameter.EatMessage == false)
{
result = new IntPtr((int)MA.NOACTIVATE);
}
else if (parameter.Activate == false && parameter.EatMessage == true)
{
result = new IntPtr((int)MA.NOACTIVATEANDEAT);
}
else if (parameter.Activate == true && parameter.EatMessage == false)
{
result = new IntPtr((int)MA.ACTIVATE);
}
else // if(parameter.Activate == true && parameter.EatMessage == true)
{
result = new IntPtr((int)MA.ACTIVATEANDEAT);
}
}
}
}
return(result ?? base.WndProcOverride(hwnd, msg, wParam, lParam, id, data));
}
private unsafe IntPtr WndProc(IntPtr hwnd, int message, IntPtr wParam, IntPtr lParam, ref bool handled)
{
const int WM_ENTERMENULOOP = 0x0211;
const int WM_EXITMENULOOP = 0x0212;
switch (message)
{
case 0x0002: // WM_DESTROY
_source.WndProcCallback = null;
foreach (var tuple in GetViews(hwnd))
{
tuple.Item1.Close();
}
lock (_HookedWindows)
{
_HookedWindows.Remove(_source.Handle);
_source.Dispose();
}
break;
case 0x0047: //WM_WINDOWPOSCHANGED
WINDOWPOS *windowPos = (WINDOWPOS *)lParam;
if ((windowPos->flags & 0x0002) != 0) // SWP_NOMOVE
{
break;
}
foreach (var tuple in GetViews(hwnd))
{
tuple.Item1.OnUpdateRootBounds();
}
break;
case 0x0231: // WM_ENTERSIZEMOVE
foreach (var tuple in GetViews(hwnd))
{
tuple.Item1.OnRootResizeBegin(EventArgs.Empty);
}
break;
case 0x0232: // WM_EXITSIZEMOVE
foreach (var tuple in GetViews(hwnd))
{
tuple.Item1.OnRootResizeEnd(EventArgs.Empty);
}
break;
case 0x0112: // WM_SYSCOMMAND
const int SC_KEYMENU = 0xF100;
// Menu loop must not be runned with Alt key
if ((int)(wParam.ToInt64() & 0xFFF0) == SC_KEYMENU && lParam == IntPtr.Zero)
{
handled = true;
}
break;
case WM_ENTERMENULOOP:
if (wParam == IntPtr.Zero)
{
CefApi.SetOSModalLoop(true);
}
break;
case WM_EXITMENULOOP:
if (wParam == IntPtr.Zero)
{
CefApi.SetOSModalLoop(false);
}
break;
}
return(IntPtr.Zero);
}
/// <summary>
/// Creates a report cotaining all data about the position of the form.
/// </summary>
/// <param name="wp">Pointer to WINDOWPOS structure.</param>
/// <returns>A report cotaining all data about the position of the form.</returns>
unsafe private string ReportWP(WINDOWPOS *wp)
{
string report, s;
report = string.Format("L:({0:D4},{1:D4}) | S:({2:D4},{3:D4}) | ", wp->x, wp->y, wp->cx, wp->cy);
s = Convert.ToString(wp->flags, 2);
for (int n = s.Length - 1; n >= 0; n--)
{
if (s[n] == '1')
{
switch ((int)Math.Pow(2, s.Length - n - 1))
{
case 0x0001:
report += "SWP_NOSIZE, ";
break;
case 0x0002:
report += "SWP_NOMOVE, ";
break;
case 0x0004:
report += "SWP_NOZORDER, ";
break;
case 0x0008:
report += "SWP_NOREDRAW, ";
break;
case 0x0010:
report += "SWP_NOACTIVATE, ";
break;
case 0x0020:
report += "SWP_FRAMECHANGED, ";
break;
case 0x0040:
report += "SWP_SHOWWINDOW, ";
break;
case 0x0080:
report += "SWP_HIDEWINDOW, ";
break;
case 0x0100:
report += "SWP_NOCOPYBITS, ";
break;
case 0x0200:
report += "SWP_NOOWNERZORDER, ";
break;
case 0x0400:
report += "SWP_NOSENDCHANGING, ";
break;
}
}
}
if (report.EndsWith(", "))
{
report = report.Remove(report.Length - 2, 2);
}
if (report.EndsWith(" | "))
{
report = report.Remove(report.Length - 3, 3);
}
if (wp->flags > 0)
{
report += " | " + wp->flags.ToString() + "; " + Convert.ToString(wp->flags, 2);
}
return(report);
}
