18、文本的旋轉顯示

?????? private?void?Form1_Paint(object?sender,?System.Windows.Forms.PaintEventArgs?e)
??????? {
??????????? Graphics?g?=e.Graphics;
??????????? g.SmoothingMode=SmoothingMode.AntiAlias;
??????????? //聲明并初始化Graphics對象g
??????????? string?tempstr?=?"Hello C#";
??????????? //取得要顯示的文字
??????????? for(int?i=0;i<361;i=i+10)
??????????? {
??????????????? g.TranslateTransform(150,?150);
??????????????? g.RotateTransform(i);
??????????????? //將指定的旋轉用于g的變換矩陣
??????????????? //將指定的平移添加到g的變換矩陣前
??????????????? Brush?myBrush=Brushes.Blue;
??????????????? g.DrawString(tempstr,?this.Font,?myBrush,?60,?0);
??????????????? //顯示旋轉文字
??????????????? g.ResetTransform();
??????????????? //將g的全局變換矩陣重置為單位矩陣
??????????? }
??????? }

????????? ?

19、陰影效果的文字

?????????? Graphics?g=e.Graphics;?
??????????? Font?myFont;
??????????? myFont=new?Font("SansSerif",40);?
????????????
??????????? SolidBrush?textShadowBrush?=?new?SolidBrush(Color.FromArgb(70,?Color.Blue));

??????????? g.DrawString("Hello C#",myFont,Brushes.Blue,?25,?25 );
??????????? g.DrawString("Hello C#",myFont,textShadowBrush,?30,?30);

??????????? ?

20、圖案填充的文字

??????????? Image?textImage?=?new?Bitmap("..\\..\\Texture.ICO");
??????????? TextureBrush?textTextureBrush?=?new?TextureBrush(textImage);
??????????? Font?myFont=new?Font("SansSerif",50);
??????????? e.Graphics.DrawString("Hello C#",?myFont,?textTextureBrush,?10,?20 );

?????????? ?

21、將彩色圖片轉換為灰度圖片

??????? Bitmap?bmp;
??????? private?void?button1_Click(object?sender,?System.EventArgs?e)
??????? {
??????????? if(this.openFileDialog1.ShowDialog()==DialogResult.OK)
??????????? {
??????????????? bmp=new?Bitmap(this.openFileDialog1.FileName);
??????????????? for (int?i=0;i<bmp.Width-1;i++)
??????????????? {
??????????????????? for(int?j=0;j<bmp.Height-1;j++)
??????????????????? {
??????????????????????? Color?Color1=bmp.GetPixel(i,j);
??????????????????????? int?rgb=(Color1.R+Color1.G+Color1.B)/3;
??????????????????????? //顏色處理
??????????????????????? bmp.SetPixel(i,j,Color.FromArgb(rgb,rgb,rgb));
??????????????????? }
??????????????? }
??????????????? this.pictureBox1.Image=bmp;
??????????? }
??????? }

??????? private?void?Form1_Load(object?sender,?System.EventArgs?e)
??????? {
??????????? this.pictureBox1.SizeMode=PictureBoxSizeMode.StretchImage;
??????? }

?????? ?

本系列文章是作者學習《Visual C#.NET 應用編程150例》（源碼）心得筆記，歡迎轉載，請注明原文地址，如有疑問，可以通過 278250658@qq.com 聯系作者本人。

轉載于:https://www.cnblogs.com/syxchina/archive/2010/12/13/2197281.html

總結

以上是生活随笔為你收集整理的c# winform 应用编程代码总结 5的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。