System.Windows.Forms.ThemeWin32Classic.CPDrawComboButton C# (CSharp) Method

		public override void CPDrawComboButton (Graphics graphics, Rectangle rectangle, ButtonState state) {
			Point[]			arrow = new Point[3];
			Point				P1;
			Point				P2;
			Point				P3;
			int				centerX;
			int				centerY;
			int				shiftX;
			int				shiftY;
			Rectangle		rect;

			if ((state & ButtonState.Checked)!=0) {
				graphics.FillRectangle(ResPool.GetHatchBrush (HatchStyle.Percent50, ColorControlLightLight, ColorControlLight),rectangle);				
			}

			if ((state & ButtonState.Flat)!=0) {
				ControlPaint.DrawBorder(graphics, rectangle, ColorControlDark, ButtonBorderStyle.Solid);
			} else {
				if ((state & (ButtonState.Pushed | ButtonState.Checked))!=0) {
					// this needs to render like a pushed button - jba
					// CPDrawBorder3D(graphics, rectangle, Border3DStyle.Sunken, Border3DSide.Left | Border3DSide.Top | Border3DSide.Right | Border3DSide.Bottom, ColorControl);
					Rectangle trace_rectangle = new Rectangle(rectangle.X, rectangle.Y, Math.Max (rectangle.Width-1, 0), Math.Max (rectangle.Height-1, 0));
					graphics.DrawRectangle (SystemPens.ControlDark, trace_rectangle);
				} else {
					CPDrawBorder3D(graphics, rectangle, Border3DStyle.Raised, Border3DSide.Left | Border3DSide.Top | Border3DSide.Right | Border3DSide.Bottom, ColorControl);
				}
			}

			rect=new Rectangle(rectangle.X+rectangle.Width/4, rectangle.Y+rectangle.Height/4, rectangle.Width/2, rectangle.Height/2);
			centerX=rect.Left+rect.Width/2;
			centerY=rect.Top+rect.Height/2;
			shiftX=Math.Max(1, rect.Width/8);
			shiftY=Math.Max(1, rect.Height/8);

			if ((state & ButtonState.Pushed)!=0) {
				shiftX++;
				shiftY++;
			}

			rect.Y-=shiftY;
			centerY-=shiftY;
			P1=new Point(rect.Left, centerY);
			P2=new Point(rect.Right, centerY);
			P3=new Point(centerX, rect.Bottom);

			arrow[0]=P1;
			arrow[1]=P2;
			arrow[2]=P3;
			
			/* Draw the arrow */
			if ((state & ButtonState.Inactive)!=0) {
				/* Move away from the shadow */
				arrow[0].X += 1;	arrow[0].Y += 1;
				arrow[1].X += 1;	arrow[1].Y += 1;
				arrow[2].X += 1;	arrow[2].Y += 1;
				
				graphics.FillPolygon(SystemBrushes.ControlLightLight, arrow, FillMode.Winding);

				arrow[0]=P1;
				arrow[1]=P2;
				arrow[2]=P3;

				graphics.FillPolygon(SystemBrushes.ControlDark, arrow, FillMode.Winding);
			} else {
				graphics.FillPolygon(SystemBrushes.ControlText, arrow, FillMode.Winding);
			}
		}