Use C # To create a screen capture program (4)

Use C # To create a screen capture program (4)

Complete code:

Using System;

Using System. Drawing;

Using System. Collections;

Using System. ComponentModel;

Using System. Windows. Forms;

Using System. Data;

Using System. Drawing. Imaging;

Namespace FormCapture

{

///

/// Summary description for Form1.

///

Public class Form1: System. Windows. Forms. Form

{

Private System. Windows. Forms. PictureBox pictureBox1;

Private System. Windows. Forms. Button button1;

///

/// Required designer variable.

///

Private System. ComponentModel. Container components = null;

 

Public Form1 ()

{

//

// Required for Windows Form Designer support

//

InitializeComponent ();

//

// TODO: Add any constructor code after InitializeComponent call

//

}

///

/// Clean up any resources being used.

///

Protected override void Dispose (bool disposing)

{

If (disposing)

{

If (components! = Null)

{

Components. Dispose ();

}

}

Base. Dispose (disposing );

}

 

# Region Windows Form Designer generated code

///

/// Required method for Designer support-do not modify

/// The contents of this method with the code editor.

///

Private void InitializeComponent ()

{

System. Resources. ResourceManager resources = new System. Resources. ResourceManager (typeof (Form1 ));

This. button1 = new System. Windows. Forms. Button ();

This. pictureBox1 = new System. Windows. Forms. PictureBox ();

This. SuspendLayout ();

//

// Button1

//

This. button1.BackColor = System. Drawing. SystemColors. ActiveBorder;

This. button1.ForeColor = System. Drawing. SystemColors. ControlDarkDark;

This. button1.Location = new System. Drawing. Point (272, 19 );

This. button1.Name = "button1 ";

This. button1.Size = new System. Drawing. Size (72, 27 );

This. button1.TabIndex = 4;

This. button1.Text = "screen capture ";

This. button1.Click + = new System. EventHandler (this. button#click );

//

// PictureBox1

//

This. pictureBox1.Image = (System. Drawing. Bitmap) (resources. GetObject ("pictureBox1.Image ")));

This. pictureBox1.Location = new System. Drawing. Point (16, 16 );

This. pictureBox1.Name = "pictureBox1 ";

This. pictureBox1.Size = new System. Drawing. Size (240,224 );

This. pictureBox1.SizeMode = System. Windows. Forms. PictureBoxSizeMode. StretchImage;

This. pictureBox1.TabIndex = 0;

This. pictureBox1.TabStop = false;

//

// Form1

//

This. AutoScaleBaseSize = new System. Drawing. Size (6, 14 );

This. ClientSize = new System. Drawing. Size (358,255 );

This. Controls. AddRange (new System. Windows. Forms. Control [] {

This. button1,

This. pictureBox1 });

This. KeyPreview = true;

This. Name = "Form1 ";

This. Text = "screen capture program ";

This. ResumeLayout (false );

 

}

# Endregion

 

[System. Runtime. InteropServices. DllImportAttribute ("gdi32.dll")]

Private static extern bool BitBlt (

IntPtr hdcDest,File: // objectDC handle

Int nXDest,File: // objectX coordinate in the upper left corner of the graph

Int nYDest,File: // objectY coordinate in the upper left corner of the graph

Int nWidth,File: // objectThe width of the rectangle in the image.

Int nHeight,File: // objectThe rectangle height of the image.

IntPtr hdcSrc,File: // SourceDC handle

Int nXSrc,File: // SourceX coordinate in the upper left corner of the graph

Int nYSrc,File: // SourceX coordinate in the upper left corner of the graph

System. Int32 dwdropFile: // opticalGrid Operation Code

);

 

Private void button#click (object sender, System. EventArgs e)

{

Graphics g1 = this. CreateGraphics (); // obtain the form image object

Image MyImage = new Bitmap (this. ClientRectangle. Width, this. ClientRectangle. Height, g1 );

Graphics g2 = Graphics. FromImage (MyImage); // create a bitmap image object

IntPtr dc1 = g1.GetHdc (); // obtain the context device of the form

IntPtr dc2 = g2.GetHdc (); // context device for obtaining bitmap files

BitBlt (dc2, 0, 0, this. ClientRectangle. Width, this. ClientRectangle. Height, dc1, 0, 0, 13369376); // write in-place Graph

G1.ReleaseHdc (dc1); // release the context device of the form

G2.ReleaseHdc (dc2); // The context device that releases the bitmap file.

MyImage. Save (@ "c: Captured.jpg", ImageFormat. Jpeg); // Save as a jpeg file

MessageBox. Show ("saving the image ends! ");

}

 

///

/// The main entry point for the application.

///

[STAThread]

Static void Main ()

{

Application. Run (new Form1 ());

}

}

}