protected static Int32 __WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
DuiHostFormBase hostForm = null;
if (msg == WindowMessages.WM_NCCREATE)
{
var lpcs = (LPCREATESTRUCT)Marshal.PtrToStructure((IntPtr)lParam, typeof(LPCREATESTRUCT));
IntPtr pHostForm = new IntPtr(lpcs.lpCreateParams);
var gch = GCHandle.FromIntPtr(pHostForm);
hostForm = gch.Target as DuiHostFormBase;
if (hostForm != null)
{
hostForm.m_hWnd = hWnd;
NativeMethods.SetWindowLong(hWnd, (int)SetWindowLongOffsets.GWL_USERDATA, pHostForm);
}
}
else
{
IntPtr pHostForm = NativeMethods.GetWindowLong(hWnd, SetWindowLongOffsets.GWL_USERDATA);
try
{
var gch = GCHandle.FromIntPtr(pHostForm);
hostForm = gch.Target as DuiHostFormBase;
}
catch { }
if (msg == WindowMessages.WM_NCDESTROY && hostForm != null)
{
LRESULT lRes = NativeMethods.CallWindowProc(hostForm.m_defWindowProc, hWnd, (int)msg, (IntPtr)wParam, (IntPtr)lParam).ToInt32();
NativeMethods.SetWindowLong(hWnd, (int)SetWindowLongOffsets.GWL_USERDATA, IntPtr.Zero);
if (hostForm.m_bSubclassed)
{
hostForm.Unsubclass();
}
hostForm.m_hWnd = IntPtr.Zero;
hostForm.OnFinalMessage(hWnd);
return(lRes);
}
}
if (hostForm != null)
{
return(hostForm.HandleMessage(msg, wParam, lParam));
}
else
{
return(NativeMethods.DefWindowProc(hWnd, (int)msg, new IntPtr(wParam), new IntPtr(lParam)).ToInt32());
}
}
public static extern bool ReplyMessage(
LRESULT lResult);
protected virtual LRESULT HandleMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
{
LRESULT lRes = NativeMethods.CallWindowProc(m_defWindowProc, m_hWnd, (int)uMsg, (IntPtr)wParam, (IntPtr)lParam).ToInt32();
return(lRes);
}
