我想用我正在开发的这个程序自动完成一些任务。但是,为此,我想从远程计算机捕获屏幕截图。我使用Teamviewer连接到这台远程计算机。我只需要从中捕获截图,处理它完成任务并重复。
问题是,如何使用c#windoww表格在Windows上捕获Teamviewer窗口的屏幕截图?
主窗口代码:
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
//Start capture
IntPtr handle = Capturer.GetHandle("Teamviewer", this.Handle);
Bitmap bmp = Capturer.PrintWindow(handle);
//Process Image
pictureBox1.Image = bmp;
}
}
这是捕获者类:
public class Capturer
{
[DllImport("user32.dll")]
public static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);
[DllImport("user32.dll")]
public static extern bool PrintWindow(IntPtr hWnd, IntPtr hdcBlt, int nFlags);
public static Bitmap PrintWindow(IntPtr hwnd)
{
RECT rc;
GetWindowRect(hwnd, out rc);
Bitmap bmp = new Bitmap(rc.Width, rc.Height, PixelFormat.Format32bppArgb);
Graphics gfxBmp = Graphics.FromImage(bmp);
IntPtr hdcBitmap = gfxBmp.GetHdc();
PrintWindow(hwnd, hdcBitmap, 0);
gfxBmp.ReleaseHdc(hdcBitmap);
gfxBmp.Dispose();
return bmp;
}
public static IntPtr GetHandle(String windowName, IntPtr selfVal)
{
Process[] processlist = Process.GetProcesses();
foreach (Process process in processlist)
{
if (!String.IsNullOrEmpty(process.MainWindowTitle))
{
String name = process.ProcessName;
int id = process.Id;
String title = process.MainWindowTitle;
if (title.Contains(windowName)){
return process.MainWindowHandle;
}
}
}
return selfVal ;
}
}
这是RECT课程:
[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
private int _Left;
private int _Top;
private int _Right;
private int _Bottom;
public RECT(RECT Rectangle) : this(Rectangle.Left, Rectangle.Top, Rectangle.Right, Rectangle.Bottom)
{
}
public RECT(int Left, int Top, int Right, int Bottom)
{
_Left = Left;
_Top = Top;
_Right = Right;
_Bottom = Bottom;
}
public int X
{
get { return _Left; }
set { _Left = value; }
}
public int Y
{
get { return _Top; }
set { _Top = value; }
}
public int Left
{
get { return _Left; }
set { _Left = value; }
}
public int Top
{
get { return _Top; }
set { _Top = value; }
}
public int Right
{
get { return _Right; }
set { _Right = value; }
}
public int Bottom
{
get { return _Bottom; }
set { _Bottom = value; }
}
public int Height
{
get { return _Bottom - _Top; }
set { _Bottom = value + _Top; }
}
public int Width
{
get { return _Right - _Left; }
set { _Right = value + _Left; }
}
public Point Location
{
get { return new Point(Left, Top); }
set
{
_Left = value.X;
_Top = value.Y;
}
}
public Size Size
{
get { return new Size(Width, Height); }
set
{
_Right = value.Width + _Left;
_Bottom = value.Height + _Top;
}
}
public static implicit operator Rectangle(RECT Rectangle)
{
return new Rectangle(Rectangle.Left, Rectangle.Top, Rectangle.Width, Rectangle.Height);
}
public static implicit operator RECT(Rectangle Rectangle)
{
return new RECT(Rectangle.Left, Rectangle.Top, Rectangle.Right, Rectangle.Bottom);
}
public static bool operator ==(RECT Rectangle1, RECT Rectangle2)
{
return Rectangle1.Equals(Rectangle2);
}
public static bool operator !=(RECT Rectangle1, RECT Rectangle2)
{
return !Rectangle1.Equals(Rectangle2);
}
public override string ToString()
{
return "{Left: " + _Left + "; " + "Top: " + _Top + "; Right: " + _Right + "; Bottom: " + _Bottom + "}";
}
public override int GetHashCode()
{
return ToString().GetHashCode();
}
public bool Equals(RECT Rectangle)
{
return Rectangle.Left == _Left && Rectangle.Top == _Top && Rectangle.Right == _Right && Rectangle.Bottom == _Bottom;
}
public override bool Equals(object Object)
{
if (Object is RECT)
{
return Equals((RECT)Object);
}
else if (Object is Rectangle)
{
return Equals(new RECT((Rectangle)Object));
}
return false;
}
}