Added changes for the zoom to animate relative to the cursor position. Also made the first changes to make sure the animation has a frame rate equal to the screen refresh.

git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@2341 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4

GreenshotPlugin/UnmanagedHelpers/Enumerations.cs

@@ -961,4 +961,168 @@ namespace GreenshotPlugin.UnmanagedHelpers {
         SND_ALIAS_ID = 0x00110000,	// alias is a predefined id
         SND_FILENAME = 0x00020000,	// name is file name
     }
+    
+	public enum DeviceCaps {
+        /// <summary>
+        /// Device driver version
+        /// </summary>
+        DRIVERVERSION = 0,
+        /// <summary>
+        /// Device classification
+        /// </summary>
+        TECHNOLOGY = 2,
+        /// <summary>
+        /// Horizontal size in millimeters
+        /// </summary>
+        HORZSIZE = 4,
+        /// <summary>
+        /// Vertical size in millimeters
+        /// </summary>
+        VERTSIZE = 6,
+        /// <summary>
+        /// Horizontal width in pixels
+        /// </summary>
+        HORZRES = 8,
+        /// <summary>
+        /// Vertical height in pixels
+        /// </summary>
+        VERTRES = 10,
+        /// <summary>
+        /// Number of bits per pixel
+        /// </summary>
+        BITSPIXEL = 12,
+        /// <summary>
+        /// Number of planes
+        /// </summary>
+        PLANES = 14,
+        /// <summary>
+        /// Number of brushes the device has
+        /// </summary>
+        NUMBRUSHES = 16,
+        /// <summary>
+        /// Number of pens the device has
+        /// </summary>
+        NUMPENS = 18,
+        /// <summary>
+        /// Number of markers the device has
+        /// </summary>
+        NUMMARKERS = 20,
+        /// <summary>
+        /// Number of fonts the device has
+        /// </summary>
+        NUMFONTS = 22,
+        /// <summary>
+        /// Number of colors the device supports
+        /// </summary>
+        NUMCOLORS = 24,
+        /// <summary>
+        /// Size required for device descriptor
+        /// </summary>
+        PDEVICESIZE = 26,
+        /// <summary>
+        /// Curve capabilities
+        /// </summary>
+        CURVECAPS = 28,
+        /// <summary>
+        /// Line capabilities
+        /// </summary>
+        LINECAPS = 30,
+        /// <summary>
+        /// Polygonal capabilities
+        /// </summary>
+        POLYGONALCAPS = 32,
+        /// <summary>
+        /// Text capabilities
+        /// </summary>
+        TEXTCAPS = 34,
+        /// <summary>
+        /// Clipping capabilities
+        /// </summary>
+        CLIPCAPS = 36,
+        /// <summary>
+        /// Bitblt capabilities
+        /// </summary>
+        RASTERCAPS = 38,
+        /// <summary>
+        /// Length of the X leg
+        /// </summary>
+        ASPECTX = 40,
+        /// <summary>
+        /// Length of the Y leg
+        /// </summary>
+        ASPECTY = 42,
+        /// <summary>
+        /// Length of the hypotenuse
+        /// </summary>
+        ASPECTXY = 44,
+        /// <summary>
+        /// Shading and Blending caps
+        /// </summary>
+        SHADEBLENDCAPS = 45,
+
+        /// <summary>
+        /// Logical pixels inch in X
+        /// </summary>
+        LOGPIXELSX = 88,
+        /// <summary>
+        /// Logical pixels inch in Y
+        /// </summary>
+        LOGPIXELSY = 90,
+
+        /// <summary>
+        /// Number of entries in physical palette
+        /// </summary>
+        SIZEPALETTE = 104,
+        /// <summary>
+        /// Number of reserved entries in palette
+        /// </summary>
+        NUMRESERVED = 106,
+        /// <summary>
+        /// Actual color resolution
+        /// </summary>
+        COLORRES = 108,
+
+        // Printing related DeviceCaps. These replace the appropriate Escapes
+        /// <summary>
+        /// Physical Width in device units
+        /// </summary>
+        PHYSICALWIDTH = 110,
+        /// <summary>
+        /// Physical Height in device units
+        /// </summary>
+        PHYSICALHEIGHT = 111,
+        /// <summary>
+        /// Physical Printable Area x margin
+        /// </summary>
+        PHYSICALOFFSETX = 112,
+        /// <summary>
+        /// Physical Printable Area y margin
+        /// </summary>
+        PHYSICALOFFSETY = 113,
+        /// <summary>
+        /// Scaling factor x
+        /// </summary>
+        SCALINGFACTORX = 114,
+        /// <summary>
+        /// Scaling factor y
+        /// </summary>
+        SCALINGFACTORY = 115,
+
+        /// <summary>
+        /// Current vertical refresh rate of the display device (for displays only) in Hz
+        /// </summary>
+        VREFRESH = 116,
+        /// <summary>
+        /// Horizontal width of entire desktop in pixels
+        /// </summary>
+        DESKTOPVERTRES = 117,
+        /// <summary>
+        /// Vertical height of entire desktop in pixels
+        /// </summary>
+        DESKTOPHORZRES = 118,
+        /// <summary>
+        /// Preferred blt alignment
+        /// </summary>
+        BLTALIGNMENT = 119
+    }
 }

GreenshotPlugin/UnmanagedHelpers/GDI32.cs

@@ -61,8 +61,10 @@ namespace GreenshotPlugin.UnmanagedHelpers {
 		public static extern int GetClipBox(IntPtr hdc, out RECT lprc);
 		[DllImport("gdi32", SetLastError = true)]
 		public static extern uint GetPixel(IntPtr hdc, int nXPos, int nYPos);
-		[DllImport("gdi32")]
+		[DllImport("gdi32", SetLastError = true)]
 		public static extern IntPtr CreateRoundRectRgn(int x1, int y1, int x2, int y2, int cx, int cy);
+		[DllImport("gdi32", SetLastError = true)]
+		public static extern int GetDeviceCaps(IntPtr hdc, DeviceCaps nIndex);
 		
 		/// <summary>
 		/// Doesn't work?