Csharp/C Sharp/2D Graphics/Pixel — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
Admin (обсуждение | вклад) м (1 версия) |
(нет различий)
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Текущая версия на 14:41, 26 мая 2010
BitMap Pixel Format
<source lang="csharp">
using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; using System.Drawing.Imaging; public class Test { static void Main() { // Create two new bitmap images Bitmap bmp1 = new Bitmap(100, 100, PixelFormat.Format32bppArgb); Bitmap bmp2 = new Bitmap(100, 100, PixelFormat.Format24bppRgb); bool b1 = ((bmp1.PixelFormat & PixelFormat.Alpha) != 0); bool b2 = ((bmp2.PixelFormat & PixelFormat.Alpha) != 0); Console.WriteLine("bmp1 has alpha?: " + b1); Console.WriteLine("bmp2 has alpha?: " + b2); bmp1.Dispose(); bmp2.Dispose(); } } </source>
Get Pixel information
<source lang="csharp">
using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; using System.Drawing.Imaging; public class Form1 : System.Windows.Forms.Form { public Form1() { InitializeComponent(); } private void InitializeComponent() { this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(292, 273); this.Text = ""; this.Resize += new System.EventHandler(this.Form1_Resize); this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint); } static void Main() { Application.Run(new Form1()); } private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { Graphics gForm = e.Graphics; gForm.FillRectangle(Brushes.White, this.ClientRectangle); // Create a bitmap in memory Bitmap bmp = new Bitmap(6, 6); Graphics gBmp = Graphics.FromImage(bmp); gBmp.FillRectangle(Brushes.White, 0, 0, bmp.Width, bmp.Height); gBmp.DrawLine(Pens.Red, 0, 0, 5, 5); gForm.DrawImage(bmp, 20, 20, bmp.Width, bmp.Height); // Finally, get the pixel information for (int y = 0; y < bmp.Height; ++y) { for (int x = 0; x < bmp.Width; ++x) { Color c = bmp.GetPixel(x, y); Console.Write("{0,2:x}{1,2:x}{2,2:x}{3,2:x} ", c.A, c.R, c.G, c.G); } Console.WriteLine(); } bmp.Dispose(); } private void Form1_Resize(object sender, System.EventArgs e) { Invalidate(); } } </source>