internal static IntPtr WndProc(IntPtr hWnd, Msg msg, IntPtr wParam, IntPtr lParam)
{
IntPtr result = IntPtr.Zero;
Message m = new Message();
m.HWnd = hWnd;
m.Msg = (int)msg;
m.WParam = wParam;
m.LParam = lParam;
m.Result = IntPtr.Zero;
#if debug
Console.WriteLine("NativeWindow.cs ({0}, {1}, {2}, {3}): result {4}", hWnd, msg, wParam, lParam, m.Result);
#endif
NativeWindow window = null;
try {
object current = null;
lock (window_collection) {
current = window_collection[hWnd];
}
window = current as NativeWindow;
if (current == null)
{
window = EnsureCreated(window, hWnd);
}
if (window != null)
{
window.WndProc(ref m);
result = m.Result;
}
else if (current is ArrayList)
{
ArrayList windows = (ArrayList)current;
lock (windows) {
if (windows.Count > 0)
{
window = EnsureCreated((NativeWindow)windows[0], hWnd);
window.WndProc(ref m);
// the first one is the control's one. all others are synthetic,
// so we want only the result from the control
result = m.Result;
for (int i = 1; i < windows.Count; i++)
{
((NativeWindow)windows[i]).WndProc(ref m);
}
}
}
}
else
{
result = XplatUI.DefWndProc(ref m);
}
}
catch (Exception ex) {
#if !ExternalExceptionHandler
if (window != null)
{
if (msg == Msg.WM_PAINT && window is Control.ControlNativeWindow)
{
// Replace control with a red cross
var control = ((Control.ControlNativeWindow)window).Owner;
control.Hide();
var redCross = new Control(control.Parent, string.Empty);
redCross.BackColor = Color.White;
redCross.ForeColor = Color.Red;
redCross.Bounds = control.Bounds;
redCross.Paint += HandleRedCrossPaint;
}
window.OnThreadException(ex);
}
#else
throw;
#endif
}
#if debug
Console.WriteLine("NativeWindow.cs: Message {0}, result {1}", msg, m.Result);
#endif
return(result);
}
internal static IntPtr WndProc(IntPtr hWnd, Msg msg, IntPtr wParam, IntPtr lParam)
{
IntPtr result = IntPtr.Zero;
Message m = new Message();
m.HWnd = hWnd;
m.Msg = (int)msg;
m.WParam = wParam;
m.LParam = lParam;
m.Result = IntPtr.Zero;
#if debug
Console.WriteLine("NativeWindow.cs ({0}, {1}, {2}, {3}): result {4}", hWnd, msg, wParam, lParam, m.Result);
#endif
NativeWindow window = null;
try
{
object current = null;
lock (window_collection)
{
current = window_collection[hWnd];
}
window = current as NativeWindow;
if (current == null)
{
window = EnsureCreated(window, hWnd);
}
if (window != null)
{
window.WndProc(ref m);
result = m.Result;
}
else if (current is ArrayList)
{
ArrayList windows = (ArrayList)current;
lock (windows)
{
if (windows.Count > 0)
{
window = EnsureCreated((NativeWindow)windows[0], hWnd);
window.WndProc(ref m);
// the first one is the control's one. all others are synthetic,
// so we want only the result from the control
result = m.Result;
for (int i = 1; i < windows.Count; i++)
{
((NativeWindow)windows[i]).WndProc(ref m);
}
}
}
}
else
{
result = XplatUI.DefWndProc(ref m);
}
}
catch (Exception ex)
{
#if !ExternalExceptionHandler
if (window != null)
{
window.OnThreadException(ex);
}
#else
throw;
#endif
}
#if debug
Console.WriteLine("NativeWindow.cs: Message {0}, result {1}", msg, m.Result);
#endif
return(result);
}
internal override IntPtr SendMessage(IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam)
{
return(NativeWindow.WndProc(hwnd, message, wParam, lParam));
}
