1 files changed, 82 insertions, 18 deletions

diff --git a/GdiTest/Gdi32.cs b/GdiTest/Gdi32.cs
index 74d822d..e461ca2 100644
--- a/GdiTest/Gdi32.cs
+++ b/GdiTest/Gdi32.cs
@@ -4,20 +4,52 @@ using System.Runtime.InteropServices;
 namespace GdiTest
 {
 	public class Gdi32
-	{		
-		[DllImport("gdi32.dll")]
-		
-		private static extern int BitBlt(
-		                                 IntPtr hdcDest,
-		                                 int nXDest,
-		                                 int nYDest,
-		                                 int nWidth,
-		                                 int nHeight,
-		                                 IntPtr hdcSrc,
-		                                 int nXSrc,
-		                                 int nYSrc,
-		                                 System.Int32 dwRop
-		                                 );
+	{
+		public static System.Int32 SRCCOPY =		0x00CC0020; /* D = S */
+		public static System.Int32 SRCPAINT =		0x00EE0086; /* D = S | D */
+		public static System.Int32 SRCAND =			0x008800C6; /* D = S & D */
+		public static System.Int32 SRCINVERT =		0x00660046; /* D = S ^ D */
+		public static System.Int32 SRCERASE	=		0x00440328; /* D = S & ~D */
+		public static System.Int32 NOTSRCCOPY =		0x00330008; /* D = ~S */
+		public static System.Int32 NOTSRCERASE =	0x001100A6; /* D = ~S & ~D */
+		public static System.Int32 MERGECOPY =		0x00C000CA; /* D = S & P */
+		public static System.Int32 MERGEPAINT =		0x00BB0226; /* D = ~S | D */
+		public static System.Int32 PATCOPY =		0x00F00021; /* D = P */
+		public static System.Int32 PATPAINT =		0x00FB0A09; /* D = D | (P | ~S) */
+		public static System.Int32 PATINVERT =		0x005A0049; /* D = P ^ D */
+		public static System.Int32 DSTINVERT =		0x00550009; /* D = ~D */
+		public static System.Int32 BLACKNESS =		0x00000042; /* D = 0 */
+		public static System.Int32 WHITENESS =		0x00FF0062; /* D = 1 */
+		public static System.Int32 DSPDxax =		0x00E20746; /* D = (S & P) | (~S & D) */
+		public static System.Int32 SPna =			0x000C0324;	/* D = S & ~P */
+		
+		public class NativeGdi32
+		{
+	        [DllImport("user32.dll")]
+	        public static extern IntPtr GetDC(IntPtr hWnd);
+			
+	        [DllImport("user32.dll")]
+	        public static extern int ReleaseDC(IntPtr hWnd, IntPtr hDC);
+	        
+			[DllImport("gdi32.dll")]
+	        public static extern int GetPixel(IntPtr hdc, int X, int Y);
+	        
+			[DllImport("gdi32.dll")]
+	        public static extern int SetPixel(IntPtr hdc, int X, int Y, int crColor);
+			
+			[DllImport("gdi32.dll")]
+			public static extern int BitBlt(
+			                                 IntPtr hdcDest,
+			                                 int nXDest,
+			                                 int nYDest,
+			                                 int nWidth,
+			                                 int nHeight,
+			                                 IntPtr hdcSrc,
+			                                 int nXSrc,
+			                                 int nYSrc,
+			                                 System.Int32 dwRop
+			                                 );
+		}
 		
 		static bool win32 = false;
 		
@@ -45,14 +77,46 @@ namespace GdiTest
 		{
 			return win32;
 		}
-			
-		public static int _BitBlt(IntPtr hdcDest, int nXDest, int nYDest, int nWidth, int nHeight,
+		
+		public static IntPtr GetDC(IntPtr hWnd)
+		{
+			if (win32)
+				return NativeGdi32.GetDC(hWnd);
+			else
+				return (IntPtr) null;
+		}
+		
+		public static int ReleaseDC(IntPtr hWnd, IntPtr hDC)
+		{
+			if (win32)
+				return NativeGdi32.ReleaseDC(hWnd, hDC);
+			else
+				return 0;
+		}
+		
+		public static int GetPixel(IntPtr hdc, int X, int Y)
+		{
+			if (win32)
+				return NativeGdi32.GetPixel(hdc, X, Y);
+			else
+				return 0;
+		}
+		
+		public static int SetPixel(IntPtr hdc, int X, int Y, int crColor)
+		{
+			if (win32)
+				return NativeGdi32.SetPixel(hdc, X, Y, crColor);
+			else
+				return 0;
+		}
+		
+		public static int BitBlt(IntPtr hdcDest, int nXDest, int nYDest, int nWidth, int nHeight,
 		                                 IntPtr hdcSrc, int nXSrc, int nYSrc, System.Int32 dwRop)
 		{
 			if (win32)
-				return BitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, dwRop);
+				return NativeGdi32.BitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, dwRop);
 			else
-				return -1;
+				return 0;
 		}
 	}
 }