в 15:31, 26 мая 2010

2010-05-26T15:31:35Z

Admin: 1 версия

2010-05-26T12:10:53Z

1 версия

Новая страница

==PixelFormat.Alpha==

<source lang="csharp">
using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Text;
using System.Windows.Forms;
public class MainClass {
public static void Main() {
// Create two new bitmap images
Bitmap bmp1 = new Bitmap(100, 100, PixelFormat.Format32bppArgb);
Bitmap bmp2 = new Bitmap(100, 100, PixelFormat.Format24bppRgb);
// Test for alpha
bool b1 = ((bmp1.PixelFormat & PixelFormat.Alpha) != 0);
bool b2 = ((bmp2.PixelFormat & PixelFormat.Alpha) != 0);
// Output results to console window
Console.WriteLine("bmp1 has alpha?: " + b1);
Console.WriteLine("bmp2 has alpha?: " + b2);
// Clean up
bmp1.Dispose();
bmp2.Dispose();
}
}

</source>

==PixelFormat.DontCare==

<source lang="csharp">
using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public class Form1 : Form {
protected override void OnPaint(PaintEventArgs e) {
Graphics g = e.Graphics;
Bitmap bmp = new Bitmap("rama.jpg");
g.FillRectangle(Brushes.White, this.ClientRectangle);
Rectangle r = new Rectangle(120, 120, 400, 400);
Bitmap bmp2 = bmp.Clone(r, System.Drawing.Imaging.PixelFormat.DontCare);
g.DrawImage(bmp, new Rectangle(0, 0, 200, 200));
g.DrawImage(bmp2, new Rectangle(210, 0, 200, 200));
bmp2.Dispose();
}
public static void Main() {
Application.Run(new Form1());
}
}

</source>

==PixelFormat.Format24bppRgb==

<source lang="csharp">
using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Text;
using System.Windows.Forms;
public class MainClass {
public static void Main() {
// Create two new bitmap images
Bitmap bmp1 = new Bitmap(100, 100, PixelFormat.Format32bppArgb);
Bitmap bmp2 = new Bitmap(100, 100, PixelFormat.Format24bppRgb);
// Test for alpha
bool b1 = ((bmp1.PixelFormat & PixelFormat.Alpha) != 0);
bool b2 = ((bmp2.PixelFormat & PixelFormat.Alpha) != 0);
// Output results to console window
Console.WriteLine("bmp1 has alpha?: " + b1);
Console.WriteLine("bmp2 has alpha?: " + b2);
// Clean up
bmp1.Dispose();
bmp2.Dispose();
}
}

</source>

==PixelFormat.Format32bppArgb==

<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 image in memory and set its CompositingMode
Bitmap bmp = new Bitmap(260, 260, PixelFormat.Format32bppArgb);
Graphics gBmp = Graphics.FromImage(bmp);
gBmp.rupositingMode = CompositingMode.SourceCopy;
// draw a red circle to the bitmap in memory
Color red = Color.FromArgb(0x60, 0xff, 0, 0);
Brush redBrush = new SolidBrush(red);
gBmp.FillEllipse(redBrush, 70, 70, 160, 160);
// draw a green rectangle to the bitmap in memory
Color green = Color.FromArgb(0x40, 0, 0xff, 0);
Brush greenBrush = new SolidBrush(green);
gBmp.FillRectangle(greenBrush, 10, 10, 140, 140);

// draw the bitmap on our window
gForm.DrawImage(bmp, 20, 20, bmp.Width, bmp.Height);
bmp.Dispose();
gBmp.Dispose();
redBrush.Dispose();
greenBrush.Dispose();
}
private void Form1_Resize(object sender, System.EventArgs e)
{
Invalidate();
}
}

</source>

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Csharp/C Sharp by API/System.Drawing.Imaging/PixelFormat - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия