Added a color picker, a modified Patch #3487158. Still needs some additional checks, if all resources are correctly freed etc.

git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1654 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4

Greenshot/Forms/ColorDialog.cs

@@ -234,5 +234,9 @@ namespace Greenshot {
 		}
 		
 		#endregion	
+
+		private void dropperUsed(object sender, Greenshot.Controls.DropperUsedArgs e) {
+			this.Color = e.color;
+		}
 	}
 }