в 15:31, 26 мая 2010

2010-05-26T15:31:19Z

Admin: 1 версия

2010-05-26T11:42:16Z

1 версия

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==Get Screen Resolution==

<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 g = e.Graphics;
Bitmap bmp = new Bitmap("winter.jpg");
g.DrawImage(bmp, 0, 0);
Console.WriteLine("Screen resolution: " + g.DpiX + "DPI");
Console.WriteLine("Image resolution: " + bmp.HorizontalResolution + "DPI");
Console.WriteLine("Image Width: " + bmp.Width);
Console.WriteLine("Image Height: " + bmp.Height);
SizeF s = new SizeF(bmp.Width * (g.DpiX / bmp.HorizontalResolution),
bmp.Height * (g.DpiY / bmp.VerticalResolution));
Console.WriteLine("Display size of image: " + s);
}
private void Form1_Resize(object sender, System.EventArgs e)
{
Invalidate();
}
}

</source>

==Perform a Screen Capture==

<source lang="csharp">

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;
public class DesktopCapture {
[DllImport("user32.dll")]
private extern static IntPtr GetDesktopWindow();
[DllImport("user32.dll")]
private extern static IntPtr GetDC(IntPtr windowHandle);
[DllImport("gdi32.dll")]
private extern static IntPtr GetCurrentObject(IntPtr hdc,
ushort objectType);
[DllImport("user32.dll")]
private extern static void ReleaseDC( IntPtr hdc );
const int OBJ_BITMAP = 7;
public static Bitmap Capture() {
IntPtr desktopWindow = GetDesktopWindow();
IntPtr desktopDC = GetDC( desktopWindow );
IntPtr desktopBitmap = GetCurrentObject(desktopDC, OBJ_BITMAP);
Bitmap desktopImage = Image.FromHbitmap( desktopBitmap );
ReleaseDC(desktopDC);
return desktopImage;
}
}
</source>

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Csharp/C Sharp/2D Graphics/Screen - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия