Get screenshot with mouse cursor and send for client application

Question

I took
this function for getting a screenshot from a client application. I to tried adapt this function in my project, but I can not capture desktop showing mouse cursor (coming from a remote pc) in my server application (controller).
Here is my adaptation (in client side) but without success:
void SendScreenProc()
// Send First Bitmap
MemoryStream streamScreen = new MemoryStream();
this.bmpScreenSend = CaptureScreen(true);//new Bitmap(this.boundScreen.Width, this.boundScreen.Height, PixelFormat.Format24bppRgb);
Graphics g = Graphics.FromImage(this.bmpScreenSend);
g.CopyFromScreen(0, 0, 0, 0, this.boundScreen.Size);
this.bmpScreenSend.Save(streamScreen, System.Drawing.Imaging.ImageFormat.Png);
Compress.CompressStream(streamScreen);
Byte[] bufferScreen = streamScreen.ToArray();
mreSendData.WaitOne();
this.queueSendData.AddScreen(streamScreen.GetBuffer());
streamScreen.Close();
this.receivedScreen = 0;
while (this.remoted)
// Send next bitmap result by difference with previous bitmap.
if(this.receivedScreen == 0) {
} else {
Bitmap bmpCurrentScreen = CaptureScreen(true);//new Bitmap(this.boundScreen.Width, this.boundScreen.Height, PixelFormat.Format24bppRgb);
g = Graphics.FromImage(bmpCurrentScreen);
g.CopyFromScreen(0, 0, 0, 0, this.boundScreen.Size);
if (this.receivedScreen == 1) {
if(this.bmpScreen != null) {
this.bmpScreen.Dispose();
this.bmpScreen = this.bmpScreenSend;
} else if(this.receivedScreen == 2) {
if (queueSendData.AvailableScreenAdd && IsDifferent(bmpCurrentScreen, this.bmpScreen))
streamScreen = new MemoryStream();
Bitmap bmpDiff = XorBitmap(this.bmpScreen, bmpCurrentScreen);
bmpDiff.Save(streamScreen, System.Drawing.Imaging.ImageFormat.Png);
this.bmpScreenSend.Dispose();
bmpDiff.Dispose();
this.bmpScreenSend = bmpCurrentScreen;
mreSendData.WaitOne();
this.queueSendData.AddScreen(streamScreen.GetBuffer());
streamScreen.Close();
this.receivedScreen = 0;
else
bmpCurrentScreen.Dispose();
Thread.Sleep(30);

Answer 1

 Hi FlashCoder,
Do you mean like this capture? Use mouse cursor to capture the specified area.
If so, here is a sample that I wrote. It should meet your requirement.  If not, please feel free to let me know.
The following is ScreenForm code
public partial class ScreenForm : Form
public ScreenForm()
InitializeComponent();
public event copyToFatherTextBox copytoFather;
public bool begin = false;
public bool isDoubleClick = false;
public Point firstPoint = new Point(0, 0);
public Point secondPoint = new Point(0, 0);
public Image cachImage = null;
public int halfWidth = 0;
public int halfHeight = 0;
/*Copy the entire screen, and form fill the screen*/
public void copyScreen()
Rectangle r = Screen.PrimaryScreen.Bounds;
Image img = new Bitmap(r.Width, r.Height);
Graphics g = Graphics.FromImage(img);
g.CopyFromScreen(new Point(0, 0), new Point(0, 0), r.Size);
//Maximize form
this.Width = r.Width;
this.Height = r.Height;
this.Left = 0;
this.Top = 0;
pictureBox1.Width = r.Width;
pictureBox1.Height = r.Height;
pictureBox1.BackgroundImage = img;
cachImage = img;
halfWidth = r.Width / 2;
halfHeight = r.Height / 2;
this.Cursor = new Cursor(GetType(), "MyCursor.cur");
private void ScreenForm_Load(object sender, EventArgs e)
copyScreen();
/*Begins when the mouse is pressed screenshots*/
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
if(!isDoubleClick)
begin = true;
firstPoint = new Point(e.X, e.Y);
changePoint(e.X, e.Y);
msg.Visible = true;
/*Displayed when the mouse moves to intercept the border*/
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
if (begin)
//Redraw the background image
secondPoint = new Point(e.X, e.Y);
int minX = Math.Min(firstPoint.X, secondPoint.X);
int minY = Math.Min(firstPoint.Y, secondPoint.Y);
int maxX = Math.Max(firstPoint.X, secondPoint.X);
int maxY = Math.Max(firstPoint.Y, secondPoint.Y);
Image tempimage = new Bitmap(cachImage);
Graphics g = Graphics.FromImage(tempimage);
//Picture cropping frames
g.DrawRectangle(new Pen(Color.Red),minX,minY,maxX-minX,maxY-minY);
pictureBox1.Image = tempimage;
//Calculation of coordinate information
msg.Text = "Upper left corner coordinates：(" + minX.ToString() + "," + minY.ToString() + ")\r\n";
msg.Text += "Lower right corner coordinates：(" + maxX.ToString() + "," + maxY.ToString() + ")\r\n";
msg.Text += "Screenshot size：" + (maxX - minX) + "×" + (maxY - minY) + "\r\n";
msg.Text += "Double-click end screenshots anywhere!";
changePoint((minX + maxX) / 2, (minY + maxY) / 2);
/*Dynamically adjusts the displayed location, enter the parameters for the current screen mouse position*/
public void changePoint(int x, int y)
if (x < halfWidth)
if (y < halfHeight)
{ msg.Top = halfHeight; msg.Left = halfWidth; }
else
{ msg.Top = 0; msg.Left = halfWidth; }
else
if (y < halfHeight)
{ msg.Top = halfHeight; msg.Left = 0; }
else
{ msg.Top = 0; msg.Left = 0; }
/*Screenshot is completed when you let go of the mouse operation */
private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
begin = false;
isDoubleClick = true;
/*When I double-click a screenshot when notifying parent form complete screenshot action, while closing the form*/
private void pictureBox1_DoubleClick(object sender, EventArgs e)
if (firstPoint != secondPoint)
int minX = Math.Min(firstPoint.X, secondPoint.X);
int minY = Math.Min(firstPoint.Y, secondPoint.Y);
int maxX = Math.Max(firstPoint.X, secondPoint.X);
int maxY = Math.Max(firstPoint.Y, secondPoint.Y);
Rectangle r = new Rectangle(minX, minY, maxX - minX, maxY - minY);
copytoFather(r);
this.Close();
//msg.Text = r.ToString();
This is the mainFrom code.
public delegate void copyToFatherTextBox(Rectangle r);
public partial class Form1 : Form
public Form1()
InitializeComponent();
/*Start screenshot*/
private void button1_Click(object sender, EventArgs e)
ScreenForm screen = new ScreenForm();
screen.copytoFather += new copyToFatherTextBox(copytoTextBox);
screen.ShowDialog();
/*Screenshot of subsequent operations*/
public void copytoTextBox(Rectangle rec)
Rectangle rec2=rec;
if(rec.Width>2&&rec.Height>2)
rec2= new Rectangle(rec.X + 1, rec.Y + 1, rec.Width - 2, rec.Height - 2);
Rectangle r = Screen.PrimaryScreen.Bounds;
Image img = new Bitmap(rec2.Width, rec2.Height);
Graphics g = Graphics.FromImage(img);
g.CopyFromScreen(rec2.Location, new Point(0, 0), rec2.Size);
Clipboard.SetDataObject(img, false);
richTextBox1.Paste();
Best regards,
Kristin
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.