static void ApplierCallback(IntPtr info, IntPtr element_ptr)
{
GCHandle gch = GCHandle.FromIntPtr(info);
// note: CGPathElementType is an untyped enum, always 32bits
CGPathElement element = new CGPathElement(Marshal.ReadInt32(element_ptr, 0));
ApplierFunction func = (ApplierFunction)gch.Target;
IntPtr ptr = Marshal.ReadIntPtr(element_ptr, IntPtr.Size);
int ptsize = Marshal.SizeOf(typeof(CGPoint));
switch (element.Type)
{
case CGPathElementType.CloseSubpath:
break;
case CGPathElementType.MoveToPoint:
case CGPathElementType.AddLineToPoint:
element.Point1 = (CGPoint)Marshal.PtrToStructure(ptr, typeof(CGPoint));
break;
case CGPathElementType.AddQuadCurveToPoint:
element.Point1 = (CGPoint)Marshal.PtrToStructure(ptr, typeof(CGPoint));
element.Point2 = (CGPoint)Marshal.PtrToStructure(((IntPtr)(((long)ptr) + ptsize)), typeof(CGPoint));
break;
case CGPathElementType.AddCurveToPoint:
element.Point1 = (CGPoint)Marshal.PtrToStructure(ptr, typeof(CGPoint));
element.Point2 = (CGPoint)Marshal.PtrToStructure(((IntPtr)(((long)ptr) + ptsize)), typeof(CGPoint));
element.Point3 = (CGPoint)Marshal.PtrToStructure(((IntPtr)(((long)ptr) + (2 * ptsize))), typeof(CGPoint));
break;
}
func(element);
}
static void ApplierCallback (IntPtr info, IntPtr element_ptr)
{
GCHandle gch = GCHandle.FromIntPtr (info);
// note: CGPathElementType is an untyped enum, always 32bits
CGPathElement element = new CGPathElement (Marshal.ReadInt32(element_ptr, 0));
ApplierFunction func = (ApplierFunction) gch.Target;
IntPtr ptr = Marshal.ReadIntPtr (element_ptr, IntPtr.Size);
int ptsize = Marshal.SizeOf (typeof (CGPoint));
switch (element.Type){
case CGPathElementType.CloseSubpath:
break;
case CGPathElementType.MoveToPoint:
case CGPathElementType.AddLineToPoint:
element.Point1 = (CGPoint) Marshal.PtrToStructure (ptr, typeof (CGPoint));
break;
case CGPathElementType.AddQuadCurveToPoint:
element.Point1 = (CGPoint) Marshal.PtrToStructure (ptr, typeof (CGPoint));
element.Point2 = (CGPoint) Marshal.PtrToStructure (((IntPtr) (((long)ptr) + ptsize)), typeof (CGPoint));
break;
case CGPathElementType.AddCurveToPoint:
element.Point1 = (CGPoint) Marshal.PtrToStructure (ptr, typeof (CGPoint));
element.Point2 = (CGPoint) Marshal.PtrToStructure (((IntPtr) (((long)ptr) + ptsize)), typeof (CGPoint));
element.Point3 = (CGPoint) Marshal.PtrToStructure (((IntPtr) (((long)ptr) + (2*ptsize))), typeof (CGPoint));
break;
}
func (element);
}