GDI+(Graphics Device Interface)
1创建画布(创建Graphics对象)
Bitmap bitmap = new Bitmap(80,80);
Graphics g=Graphics.FromImage(bitmap);
2创建Pen对象(直线 曲线)
public Pen = new Pen(Color.Black);
Pen pen= new Pen(Color.Black,5);
SolidBrush brush= new SolidBrush(Color.Red);
Pen pen = new Pen(brush);
Pen pen = new Pen(Brush,5);
3创建Brush对象(画刷)
几种类型
SolidBrush 纯色画刷
HatBrush从预设图案中选择绘制.
TextureBrush 纹理绘制
LinearGradientBrush: 使用沿渐变混合的两种颜色进行绘制
PathGradientBrush:基于编程者定义的唯一路径,使用负载的混合色渐变进行绘制.