nativemethods.cs

c#源代码

		public static extern IntPtr GetParent(IntPtr hWnd);

		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, int lParam);

		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern IntPtr SendMessage(IntPtr hWnd, int msg, int wParam, IntPtr lParam);

		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern void SendMessage(IntPtr hWnd, int msg, int wParam, ref RECT lParam);

		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, ref POINT lParam);

		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern void SendMessage(IntPtr hWnd, int msg, int wParam, ref TBBUTTON lParam);
	
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern void SendMessage(IntPtr hWnd, int msg, int wParam, ref TBBUTTONINFO lParam);

		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern void SendMessage(IntPtr hWnd, int msg, int wParam, ref REBARBANDINFO lParam);
	
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern IntPtr PostMessage(IntPtr hWnd, int msg, int wParam, int lParam);
	
		[DllImport("kernel32.dll", ExactSpelling=true, CharSet=CharSet.Auto)]
		public static extern int GetCurrentThreadId();

		internal delegate IntPtr HookProc(int code, IntPtr param1, IntPtr param2);
	
		public const int WH_MSGFILTER = -1;
		public const int MSGF_MENU = 2;
		
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern IntPtr SetWindowsHookEx(int hookid, HookProc pfnhook, IntPtr hinst, int threadid);
		
		[DllImport("user32.dll", CharSet=CharSet.Auto, ExactSpelling=true)]
		public static extern bool UnhookWindowsHookEx(IntPtr hhook);
	
		[DllImport("user32.dll", CharSet=CharSet.Auto, ExactSpelling=true)]
		public static extern IntPtr CallNextHookEx(IntPtr hhook, int code, IntPtr wparam, IntPtr lparam);
	
		[StructLayout(LayoutKind.Sequential)]
		internal struct MSG 
		{
			public IntPtr hwnd;
			public int message;
			public IntPtr wParam;
			public IntPtr lParam;
			public int time;
			public int pt_x;
			public int pt_y;
		}

		public const string REBARCLASSNAME = "ReBarWindow32";		
	
		public const int RBS_VARHEIGHT = 0x200;
		public const int RBS_BANDBORDERS = 0x400;
		public const int RBS_AUTOSIZE = 0x2000;
	
		public const int RBN_FIRST = -831;
		public const int RBN_HEIGHTCHANGE = RBN_FIRST - 0;
		public const int RBN_AUTOSIZE = RBN_FIRST - 3;
		public const int RBN_CHEVRONPUSHED = RBN_FIRST - 10;
	
		public const int RB_GETBANDINFO = WM_USER + 5;
		public const int RB_SETBANDINFO = WM_USER + 6;
		public const int RB_GETRECT = WM_USER + 9;
		public const int RB_INSERTBAND = WM_USER + 10;
		public const int RB_GETBARHEIGHT = WM_USER + 27;
	
		[StructLayout(LayoutKind.Sequential)]
		internal struct REBARBANDINFO
		{
			public int cbSize;
			public int fMask;
			public int fStyle;
			public int clrFore;
			public int clrBack;
			public IntPtr lpText;
			public int cch;
			public int iImage;
			public IntPtr hwndChild;
			public int cxMinChild;
			public int cyMinChild;
			public int cx;
			public IntPtr hbmBack;
			public int wID;
			public int cyChild;
			public int cyMaxChild;
			public int cyIntegral;
			public int cxIdeal;
			public int lParam;
			public int cxHeader;
		}

		public const int RBBIM_CHILD = 0x10;
		public const int RBBIM_CHILDSIZE = 0x20;
		public const int RBBIM_STYLE = 0x1;
		public const int RBBIM_ID = 0x100;
		public const int RBBIM_SIZE = 0x40;
		public const int RBBIM_IDEALSIZE = 0x200;
		public const int RBBIM_TEXT = 0x4;
	
		public const int RBBS_BREAK = 0x1;
		public const int RBBS_CHILDEDGE = 0x4;
		public const int RBBS_FIXEDBMP = 0x20;
		public const int RBBS_GRIPPERALWAYS = 0x80;
		public const int RBBS_USECHEVRON = 0x200;

		[StructLayout(LayoutKind.Sequential)]
		internal struct NMREBARCHEVRON
		{
			public NMHDR hdr;
			public int uBand;
			public int wID;
			public int lParam;
			public RECT rc;
			public int lParamNM;
		}

		[StructLayout(LayoutKind.Sequential)]
		internal struct IMAGELISTDRAWPARAMS 
		{
			public int cbSize;
			public IntPtr himl;
			public int i;
			public IntPtr hdcDst;
			public int x;
			public int y;
			public int cx;
			public int cy;
			public int xBitmap;
			public int yBitmap;
			public int rgbBk;
			public int rgbFg;
			public int fStyle;
			public int dwRop;
			public int fState;
			public int Frame;
			public int crEffect;				
		}

		public const int ILD_TRANSPARENT = 0x1;
		public const int ILS_SATURATE = 0x4;

		[DllImport("comctl32.dll", CharSet=CharSet.Auto)]
		public static extern bool ImageList_DrawIndirect(ref IMAGELISTDRAWPARAMS pimldp);
		
		[StructLayout(LayoutKind.Sequential)]
		internal struct DLLVERSIONINFO
		{
			public int cbSize;
			public int dwMajorVersion;
			public int dwMinorVersion;
			public int dwBuildNumber;
			public int dwPlatformID;
		}
			
		[DllImport("comctl32.dll")]
		public extern static int DllGetVersion(ref DLLVERSIONINFO dvi);

		public const int SPI_GETFLATMENU = 0x1022;

		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public extern static int SystemParametersInfo(int nAction, int nParam, ref int value, int ignore);

		[DllImport("user32.dll", ExactSpelling=true, CharSet=CharSet.Auto)]
		public static extern bool MessageBeep(int type);

		public const int HWND_NOTOPMOST = -2;
		public const int SW_SHOWNORMAL = 1;
		public const int SWP_NOACTIVATE = 0x0010;
		public const int SWP_NOMOVE = 0x0002;
		public const int SWP_NOSIZE = 0x0001;
		public const int SWP_NOZORDER = 0x0004;
		public const int SWP_SHOWWINDOW = 0x0040;

		[DllImport("user32.dll", ExactSpelling=true, CharSet=CharSet.Auto)]
		public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, int flags);
		
		public const int VK_RMENU = 0xA5; // right alt key
		
		[DllImport("user32.dll", ExactSpelling=true, CharSet=CharSet.Auto)]
		public static extern short GetAsyncKeyState(int vKey);
		
		public static void DrawImage(Graphics graphics, Image image, Point point, bool disabled)
		{
			if (!disabled)
			{
				Rectangle destination = new Rectangle(point, image.Size);
				graphics.DrawImage(image, destination, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel);
			}
			else
			{
				// Painting a disabled gray scale image is done using ILS_SATURATE on WinXP.
				// This code emulates that behaviour if comctl32 version 6 is not availble.
				NativeMethods.DLLVERSIONINFO dvi = new NativeMethods.DLLVERSIONINFO();
				dvi.cbSize = Marshal.SizeOf(typeof(NativeMethods.DLLVERSIONINFO));
				NativeMethods.DllGetVersion(ref dvi);
				if (dvi.dwMajorVersion < 6)
				{
					ImageAttributes attributes = new ImageAttributes();
					Rectangle destination = new Rectangle(point, image.Size);
					float[][] matrix = new float[5][];
					matrix[0] = new float[] { 0.2222f, 0.2222f, 0.2222f, 0.0000f, 0.0000f };
					matrix[1] = new float[] { 0.2222f, 0.2222f, 0.2222f, 0.0000f, 0.0000f };
					matrix[2] = new float[] { 0.2222f, 0.2222f, 0.2222f, 0.0000f, 0.0000f };
					matrix[3] = new float[] { 0.3333f, 0.3333f, 0.3333f, 0.7500f, 0.0000f };
					matrix[4] = new float[] { 0.0000f, 0.0000f, 0.0000f, 0.0000f, 1.0000f };
					attributes.SetColorMatrix(new ColorMatrix(matrix));
					graphics.DrawImage(image, destination, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel, attributes);
				}
				else
				{
					ImageList imageList = new ImageList();
					imageList.ImageSize = image.Size;
					imageList.ColorDepth = ColorDepth.Depth32Bit;		
					imageList.Images.Add(image);
	
					IntPtr hdc = graphics.GetHdc();
					NativeMethods.IMAGELISTDRAWPARAMS ildp = new NativeMethods.IMAGELISTDRAWPARAMS();
					ildp.cbSize = Marshal.SizeOf(typeof(NativeMethods.IMAGELISTDRAWPARAMS));
					ildp.himl = imageList.Handle;
					ildp.i = 0; // image index
					ildp.hdcDst = hdc;
					ildp.x = point.X;
					ildp.y = point.Y;
					ildp.cx = 0;
					ildp.cy = 0;
					ildp.xBitmap = 0;
					ildp.yBitmap = 0;
					ildp.fStyle = NativeMethods.ILD_TRANSPARENT;
					ildp.fState = NativeMethods.ILS_SATURATE;
					ildp.Frame = -100;
					NativeMethods.ImageList_DrawIndirect(ref ildp);
					graphics.ReleaseHdc(hdc);
				}
			}
		}
	}
}