GDI+(Graphics Device Interface) 是一種繪圖裝置接口，可將應用程序和繪圖硬件分隔，讓我們能夠編寫與裝置無關的應用程序。

它可以讓我們不需要注意特定顯示裝置的詳細數據，便可在屏幕或打印機顯示信息。

我們可以呼叫GDI+類別提供的方法，然后這些方法會適當的呼叫特定的裝置驅動程序，而完成繪圖。而且與.NET進行了更好的融合

GDI?

private void Form1_Load(object sender, EventArgs e){//直線繪制？一支筆，顏色，一張紙，兩點一線，繪制直線的人（對象） }private void button1_Click(object sender, EventArgs e){//創建GDI對象Graphics g = this.CreateGraphics();//new Graphics();//創建畫筆對象Pen pen = new Pen(Brushes.Red);//創建兩個點Point p1 = new Point(30, 50);Point p2 = new Point(200, 200);//畫 g.DrawLine(pen, p1, p2);}private void Form1_Paint(object sender, PaintEventArgs e){//創建GDI對象Graphics g = this.CreateGraphics();//new Graphics();//創建畫筆對象Pen pen = new Pen(Brushes.Red);//創建兩個點Point p1 = new Point(30, 50);Point p2 = new Point(200, 200);//畫 g.DrawLine(pen, p1, p2);}private void button2_Click(object sender, EventArgs e){Graphics g = this.CreateGraphics();Pen pen = new Pen(Brushes.Green);Size size = new System.Drawing.Size(160,80);Rectangle rec = new Rectangle(new Point(50,50),size);g.DrawRectangle(pen, rec);}private void button3_Click(object sender, EventArgs e){Graphics g = this.CreateGraphics();Pen pen = new Pen(Brushes.Blue);Size size = new System.Drawing.Size(150, 150);Rectangle rec = new Rectangle(new Point(150,150),size);g.DrawPie(pen, rec, 60, 60);}private void button4_Click(object sender, EventArgs e){Graphics g = this.CreateGraphics();g.DrawString("老婆是最美的", new Font("黑體", 20, FontStyle.Bold), Brushes.Black, new Point(300, 300));}}

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轉載于:https://www.cnblogs.com/mikie/p/4636194.html

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