sdk/samples/CrossTechnologySamples/VistaBridge/vistabridgelibrary/interop/unsafenativemethods.cs

   1 using System;
   2 using System.Text;
   3 using System.Runtime.InteropServices;
   4 using System.Security;
   5 using Microsoft.SDK.Samples.VistaBridge.Library;
   6 using Microsoft.SDK.Samples.VistaBridge.Library.StockIcons;
   7 namespace Microsoft.SDK.Samples.VistaBridge.Interop
   8 {
   9     /// <summary>
  10     /// Internal class that contains interop declarations for
  11     /// performance critical native functions.
  12     /// Note that NO security checking is done by the CLR,
  13     /// because the unmanaged code security checks are disabled;
  14     /// ANY usage of these methods must be properly
  15     /// protected with the appropriate security demands.
  16     /// </summary>
  17     ///
  18     [SuppressUnmanagedCodeSecurity]
  19     internal static class UnsafeNativeMethods
  20     {
  21         // Various overloads of SendMessage.
  22         [DllImport(ExternDll.User32,
  23             CharSet = CharSet.Auto,
  24             SetLastError = true)]
  25         internal static extern IntPtr SendMessage(
  26             IntPtr hWnd,
  27             uint msg,
  28             IntPtr wParam,
  29             IntPtr lParam
  30         );
  31
  32         [DllImport(ExternDll.User32,
  33             CharSet = CharSet.Auto,
  34             SetLastError = true)]
  35         internal static extern IntPtr SendMessage(
  36             IntPtr hWnd,
  37             uint msg,
  38             int wParam,
  39             [MarshalAs(UnmanagedType.Bool)] bool lParam
  40         );
  41
  42         [DllImport(ExternDll.User32,
  43             CharSet = CharSet.Auto,
  44             SetLastError = true)]
  45         internal static extern IntPtr SendMessage(
  46            IntPtr hWnd,
  47             uint Msg,
  48            int wParam,
  49            [MarshalAs(UnmanagedType.LPWStr)] string lParam);
  50
  51         [DllImport(ExternDll.User32,
  52             CharSet = CharSet.Auto,
  53             SetLastError = true)]
  54         internal static extern IntPtr SendMessage(
  55           IntPtr hWnd,
  56             uint Msg,
  57           ref int wParam,
  58             [MarshalAs(UnmanagedType.LPWStr)] StringBuilder lParam);
  59
  60         [DllImport("ole32.dll",
  61             CharSet = CharSet.Unicode,
  62             ExactSpelling = true,
  63             PreserveSig = false)]
  64         [return: MarshalAs(UnmanagedType.Interface)]
  65         internal static extern object CoGetObject(
  66            string pszName,
  67            [In] ref SafeNativeMethods.BIND_OPTS3 pBindOptions,
  68            [In, MarshalAs(UnmanagedType.LPStruct)] Guid riid);
  69
  70         #region GDI and DWM Declarations
  71
  72         [DllImport("user32.dll")]
  73         internal static extern IntPtr GetDC(IntPtr hWnd);
  74
  75         [DllImport("user32.dll")]
  76         internal static extern int ReleaseDC(IntPtr hWnd, IntPtr hdc);
  77
  78         [DllImport("user32.dll")]
  79         internal static extern int DrawCaption(
  80             // Handle to window.
  81             IntPtr hwnd,
  82             // Handle to device context.
  83             IntPtr hdc,
  84             // Rectangle to draw in.
  85             ref SafeNativeMethods.RECT lprc,
  86             // drawing options.
  87             int uFlags
  88         );
  89
  90         [DllImport("user32.dll")]
  91         internal static extern int GetClientRect(
  92             IntPtr hwnd,
  93             ref SafeNativeMethods.RECT rect);
  94
  95         [DllImport("gdi32.dll")]
  96         internal static extern IntPtr CreateRectRgn(
  97             int left,
  98             int top,
  99             int right,
 100             int bottom);
 101
 102         [DllImport("gdi32.dll")]
 103         internal static extern IntPtr CreateRoundRectRgn(
 104             int left,
 105             int top,
 106             int right,
 107             int bottom,
 108             // Width of the ellipse used to create the rounded corners.
 109             int widthOfEllipse,
 110             int heightOfEllipse);
 111
 112         [DllImport("user32.dll")]
 113         internal static extern int SetWindowRgn(
 114             IntPtr hwnd,
 115             IntPtr hrgn,
 116             [MarshalAs(UnmanagedType.Bool)] bool redrawWindow);
 117
 118         [DllImport("DwmApi.dll")]
 119         internal static extern int DwmEnableComposition(
 120            [MarshalAs(UnmanagedType.Bool)] bool fEnabled);
 121
 122         [DllImport("DwmApi.dll")]
 123         internal static extern int DwmIsCompositionEnabled(
 124             [MarshalAs(UnmanagedType.Bool)] ref bool fEnabled);
 125
 126         [DllImport("DwmApi.dll")]
 127         internal static extern int DwmRegisterThumbnail(
 128             IntPtr hwndDestination,
 129             IntPtr hwndSource,
 130             ref SafeNativeMethods.SIZE minimizedSize,
 131             ref IntPtr hThumbnailId);
 132
 133         [DllImport("DwmApi.dll")]
 134         internal static extern int DwmUnregisterThumbnail(
 135             IntPtr hThumbnailId);
 136
 137         [DllImport("DwmApi.dll")]
 138         internal static extern int DwmUpdateThumbnailProperties(
 139             IntPtr hThumbnailId,
 140             ref SafeNativeMethods.DWM_THUMBNAIL_PROPERTIES tp);
 141
 142         [DllImport("DwmApi.dll")]
 143         internal static extern int DwmQueryThumbnailSourceSize(
 144             IntPtr hThumbnailId,
 145             ref SafeNativeMethods.SIZE size);
 146
 147         [DllImport("DwmApi.dll")]
 148         internal static extern int DwmSetWindowAttribute(
 149             IntPtr hwnd,
 150             //DWMWA_* values.
 151             uint dwAttributeToSet,
 152             IntPtr pvAttributeValue,
 153             uint cbAttribute);
 154
 155         [DllImport("DwmApi.dll")]
 156         internal static extern int DwmGetWindowAttribute(
 157             IntPtr hwnd,
 158             //DWMWA_* values.
 159             uint dwAttributeToGet,
 160             IntPtr pvAttributeValue,
 161             uint cbAttribute);
 162
 163         [DllImport("DwmApi.dll")]
 164         public static extern int DwmSetPresentParameters(
 165             IntPtr hwnd,
 166             ref SafeNativeMethods.DWM_PRESENT_PARAMETERS pPresentParams);
 167
 168         [DllImport("DwmApi.dll")]
 169         internal static extern int DwmSetDxFrameDuration(
 170             IntPtr hwnd,
 171             int refreshes);
 172
 173         [DllImport("DwmApi.dll")]
 174         internal static extern int DwmModifyPreviousDxFrameDuration(
 175             IntPtr hwnd,
 176             int refreshes,
 177             [MarshalAs(UnmanagedType.Bool)] bool fRelative);
 178
 179         [DllImport("DwmApi.dll")]
 180         internal static extern int DwmGetCompositionTimingInfo(
 181             IntPtr hwnd,
 182             IntPtr timingInfo);
 183
 184         [DllImport("DwmApi.dll")]
 185         internal static extern int DwmEnableMMCSS(
 186             [MarshalAs(UnmanagedType.Bool)] bool fEnableMMCSS);
 187
 188
 189         [DllImport("DwmApi.dll")]
 190         internal static extern int DwmEnableBlurBehindWindow(
 191             IntPtr hwnd,
 192             ref SafeNativeMethods.DWM_BLURBEHIND bb);
 193
 194         [DllImport("DwmApi.dll")]
 195         internal static extern int DwmExtendFrameIntoClientArea(
 196             IntPtr hwnd,
 197             ref SafeNativeMethods.MARGINS m);
 198
 199         [DllImport("DwmApi.dll")]
 200         internal static extern int DwmGetColorizationColor(
 201             ref int color);
 202
 203         #endregion
 204
 205         #region StockIcon interop
 206
 207         [DllImport("Shell32.dll", CharSet = CharSet.Unicode,
 208         ExactSpelling = true, SetLastError = false)]
 209         internal static extern int SHGetStockIconInfo(
 210             StockIconIdentifier identifier,
 211             StockIconOptions flags,
 212             ref SafeNativeMethods.StockIconInfo info);
 213
 214         [DllImport("User32.dll", SetLastError = true)]
 215         [return: MarshalAs(UnmanagedType.Bool)]
 216         internal static extern bool DestroyIcon(IntPtr handle);
 217
 218         #endregion
 219     }
 220 }