UnsafeNativeMethods.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Integration / MS / Win32 / UnsafeNativeMethods.cs / 1 / UnsafeNativeMethods.cs
                        

                        
                            using System; 
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using System.Security;
using System.Security.Permissions; 

namespace MS.Win32 
{ 
    internal static class UnsafeNativeMethods
    { 
        [DllImport(ExternDll.User32, ExactSpelling = true, CharSet = CharSet.Auto)]
        public static extern bool IsChild(IntPtr hWndParent, IntPtr hwnd);

        [DllImport(ExternDll.User32, ExactSpelling = true, CharSet = CharSet.Auto)] 
        public static extern IntPtr GetFocus();
 
        [DllImport("User32", ExactSpelling = true, CharSet = CharSet.Auto)] 
        internal static extern IntPtr SetParent(IntPtr hWnd, IntPtr hWndParent);
 
        [DllImport(ExternDll.User32, ExactSpelling = true, CharSet = CharSet.Auto)] [return: MarshalAs(UnmanagedType.Bool)]
        public static extern bool TranslateMessage([In, Out] ref System.Windows.Interop.MSG msg);

        [DllImport(ExternDll.User32, CharSet = CharSet.Auto)] 
        public static extern IntPtr DispatchMessage([In] ref System.Windows.Interop.MSG msg);
 
        [DllImport(ExternDll.User32, CharSet = CharSet.Auto, SetLastError = true)] 
        internal static extern IntPtr SendMessage(HandleRef hWnd, int msg, IntPtr wParam, IntPtr lParam);
 
        [DllImport(ExternDll.Gdi32, ExactSpelling = true, CharSet = CharSet.Auto)]
        public static extern int GetDeviceCaps(DCSafeHandle hDC, int nIndex);

        [DllImport(ExternDll.Gdi32, EntryPoint = "CreateDC", CharSet = CharSet.Auto)] 
        private static extern DCSafeHandle IntCreateDC(string lpszDriver, string lpszDeviceName, string lpszOutput, IntPtr devMode);
 
        public static DCSafeHandle CreateDC(string lpszDriver) 
        {
            return IntCreateDC(lpszDriver, null, null, IntPtr.Zero); 
        }

        [DllImport(ExternDll.Gdi32, ExactSpelling = true, CharSet = CharSet.Auto)]
        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)] 
        public static extern bool DeleteDC(IntPtr hDC);
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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