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![Bertrand Lorentz](/assets/img/avatar_default.png)
In Windows builds of GTK+ 3.x, the dll filename is libgtk-3-0.dll. We use this opportunity to use a common const in the DllImport statement for all custom code.
220 lines
5.9 KiB
C#
Executable File
220 lines
5.9 KiB
C#
Executable File
// GTK.Application.cs - GTK Main Event Loop class implementation
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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//
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// Copyright (c) 2001 Mike Kestner
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of version 2 of the Lesser GNU General
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// Public License as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this program; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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namespace Gtk {
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using System;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using System.Threading;
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using Gdk;
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public partial class Application {
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const int WS_EX_TOOLWINDOW = 0x00000080;
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const int WS_OVERLAPPEDWINDOW = 0x00CF0000;
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[DllImport ("user32.dll", EntryPoint="CreateWindowExW", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
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static extern IntPtr Win32CreateWindow (int dwExStyle, string lpClassName, string lpWindowName,int dwStyle, int x, int y, int nWidth, int nHeight, IntPtr hWndParent, IntPtr hMenu, IntPtr hInstance, IntPtr lParam);
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[DllImport ("user32.dll", EntryPoint="DestroyWindow", CharSet=CharSet.Unicode, CallingConvention=CallingConvention.StdCall)]
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static extern bool Win32DestroyWindow (IntPtr window);
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static Application ()
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{
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if (!GLib.Thread.Supported)
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GLib.Thread.Init ();
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switch (Environment.OSVersion.Platform) {
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case PlatformID.Win32NT:
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case PlatformID.Win32S:
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case PlatformID.Win32Windows:
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case PlatformID.WinCE:
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// No idea why we need to create that window, but it enables visual styles on the Windows platform
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IntPtr window = Win32CreateWindow (WS_EX_TOOLWINDOW, "static", "gtk-sharp visual styles window", WS_OVERLAPPEDWINDOW, 0, 0, 0, 0, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
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Win32DestroyWindow (window);
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break;
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default:
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break;
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}
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern void gtk_init (ref int argc, ref IntPtr argv);
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool gtk_init_check (ref int argc, ref IntPtr argv);
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static void SetPrgname ()
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{
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var args = Environment.GetCommandLineArgs ();
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if (args != null && args.Length > 0)
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GLib.Global.ProgramName = System.IO.Path.GetFileNameWithoutExtension (args [0]);
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}
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public static void Init ()
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{
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SetPrgname ();
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IntPtr argv = new IntPtr(0);
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int argc = 0;
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gtk_init (ref argc, ref argv);
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SynchronizationContext.SetSynchronizationContext (new GLib.GLibSynchronizationContext ());
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}
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static bool do_init (string progname, ref string[] args, bool check)
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{
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SetPrgname ();
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bool res = false;
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string[] progargs = new string[args.Length + 1];
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progargs[0] = progname;
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args.CopyTo (progargs, 1);
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GLib.Argv argv = new GLib.Argv (progargs);
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IntPtr buf = argv.Handle;
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int argc = progargs.Length;
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if (check)
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res = gtk_init_check (ref argc, ref buf);
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else
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gtk_init (ref argc, ref buf);
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if (buf != argv.Handle)
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throw new Exception ("init returned new argv handle");
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// copy back the resulting argv, minus argv[0], which we're
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// not interested in.
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if (argc <= 1)
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args = new string[0];
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else {
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progargs = argv.GetArgs (argc);
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args = new string[argc - 1];
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Array.Copy (progargs, 1, args, 0, argc - 1);
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}
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return res;
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}
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public static void Init (string progname, ref string[] args)
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{
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do_init (progname, ref args, false);
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}
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public static bool InitCheck (string progname, ref string[] args)
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{
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return do_init (progname, ref args, true);
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern void gtk_main ();
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public static void Run ()
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{
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gtk_main ();
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool gtk_events_pending ();
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public static bool EventsPending ()
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{
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return gtk_events_pending ();
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern void gtk_main_iteration ();
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern bool gtk_main_iteration_do (bool blocking);
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public static void RunIteration ()
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{
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gtk_main_iteration ();
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}
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public static bool RunIteration (bool blocking)
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{
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return gtk_main_iteration_do (blocking);
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern void gtk_main_quit ();
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public static void Quit ()
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{
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gtk_main_quit ();
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}
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[DllImport (Global.GtkNativeDll, CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr gtk_get_current_event ();
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public static Gdk.Event CurrentEvent {
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get {
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return Gdk.Event.GetEvent (gtk_get_current_event ());
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}
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}
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internal class InvokeCB {
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EventHandler d;
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object sender;
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EventArgs args;
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internal InvokeCB (EventHandler d)
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{
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this.d = d;
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args = EventArgs.Empty;
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sender = this;
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}
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internal InvokeCB (EventHandler d, object sender, EventArgs args)
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{
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this.d = d;
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this.args = args;
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this.sender = sender;
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}
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internal bool Invoke ()
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{
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d (sender, args);
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return false;
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}
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}
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public static void Invoke (EventHandler d)
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{
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InvokeCB icb = new InvokeCB (d);
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GLib.Timeout.Add (0, new GLib.TimeoutHandler (icb.Invoke));
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}
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public static void Invoke (object sender, EventArgs args, EventHandler d)
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{
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InvokeCB icb = new InvokeCB (d, sender, args);
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GLib.Timeout.Add (0, new GLib.TimeoutHandler (icb.Invoke));
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}
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}
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}
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