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// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2004-2006 Novell, Inc.
//
// Authors:
// Peter Dennis Bartok pbartok@novell.com
//
// COMPLETE
#define ExternalExceptionHandler
using System.Runtime.Remoting;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;
using System.Collections;
using System.Diagnostics;
namespace System.Windows.Forms
{
public class NativeWindow : MarshalByRefObject {
internal IntPtr window_handle;
static internal Hashtable window_collection = new Hashtable();
#region Public Constructors
public NativeWindow() {
window_handle=IntPtr.Zero;
}
#endregion // Public Constructors
#region Public Instance Properties
public IntPtr Handle {
get {
return window_handle;
}
}
#endregion // Public Instance Properties
#region Public Static Methods
public static NativeWindow FromHandle(IntPtr handle) {
NativeWindow window=new NativeWindow();
window.AssignHandle(handle);
return window;
}
#endregion // Public Static Methods
#region Private and Internal Methods
internal static NativeWindow FindWindow(IntPtr handle) {
return (NativeWindow)window_collection[handle];
}
internal void InvalidateHandle() {
window_collection.Remove(window_handle);
window_handle = IntPtr.Zero;
}
#endregion
#region Public Instance Methods
public void AssignHandle(IntPtr handle) {
if (window_handle != IntPtr.Zero) {
window_collection.Remove(window_handle);
}
window_handle=handle;
window_collection.Add(window_handle, this);
OnHandleChange();
}
public virtual void CreateHandle(CreateParams create_params) {
if (create_params != null) {
window_handle=XplatUI.CreateWindow(create_params);
if (window_handle != IntPtr.Zero) {
window_collection.Add(window_handle, this);
}
}
}
public void DefWndProc(ref Message m) {
m.Result=XplatUI.DefWndProc(ref m);
}
public virtual void DestroyHandle() {
if (window_handle != IntPtr.Zero) {
XplatUI.DestroyWindow(window_handle);
}
}
public virtual void ReleaseHandle() {
window_collection.Remove(window_handle);
window_handle=IntPtr.Zero;
OnHandleChange();
}
#endregion // Public Instance Methods
#region Protected Instance Methods
~NativeWindow() {
}
protected virtual void OnHandleChange() {
}
protected virtual void OnThreadException(Exception e) {
Application.OnThreadException(e);
}
protected virtual void WndProc(ref Message m) {
DefWndProc(ref m);
}
internal static IntPtr WndProc(IntPtr hWnd, Msg msg, IntPtr wParam, IntPtr lParam) {
Message m = new Message();
NativeWindow window = null;
#if !ExternalExceptionHandler
try {
#endif
window = (NativeWindow)window_collection[hWnd];
m.HWnd=hWnd;
m.Msg=(int)msg;
m.WParam=wParam;
m.LParam=lParam;
m.Result=IntPtr.Zero;
if (window != null) {
window.WndProc(ref m);
} else {
m.Result=XplatUI.DefWndProc(ref m);
}
#if !ExternalExceptionHandler
}
catch(System.Exception ex) {
if (window != null) {
window.OnThreadException(ex);
}
}
#endif
#if debug
Console.WriteLine("NativeWindow.cs: Message {0}, result {1}", msg, m.Result);
#endif
return m.Result;
}
#endregion // Protected Instance Methods
}
}
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