private void _Start()
{
while(_Running)
{
try
{
if(!Capturing)
{
Thread.Sleep(10);
continue;
}
System.Diagnostics.Stopwatch SW = new Stopwatch();
SW.Start();
_MouseCapture.Update();
if((DateTime.Now - LastScreenUpdate).TotalMilliseconds > _Intervalms)
{
//prevent excessive checking
if(_RunningAsService && (DateTime.Now - LastDeskSwitch).TotalMilliseconds > 500)
{//only a program running as under the account nt authority\system is allowed to switch desktops
var d = _DesktopInfo.GetActiveDesktop();
_ScreenCapture.ReleaseHandles();//make sure to release any handles before switching
if(d != _DesktopInfo.Current_Desktop)
{
_DesktopInfo.SwitchDesktop(d);
}
LastDeskSwitch = DateTime.Now;
}
SW.Stop();
var img = _ScreenCapture.GetScreen(new Size(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height));
Debug.WriteLine("GetScreen time: " + SW.ElapsedMilliseconds +"ms");
SW.Start();
Rectangle rect = Desktop_Sharing_Shared.Bitmap_Helper.Get_Diff(_LastImage, img);
_LastImage = img;
if(rect.Width > 0 && rect.Height > 0)
{
var rawimg = new Raw_Image
{
Data = Desktop_Sharing_Shared.Bitmap_Helper.Copy(img, rect),
Dimensions = rect
};
SW.Stop();
Debug.WriteLine("GetScreen Copy time: " + SW.ElapsedMilliseconds + "ms");
ScreenScanEvent.WaitOne();
System.Threading.ThreadPool.QueueUserWorkItem(new WaitCallback(ScreenUpdate_ThreadProc), rawimg);
}
LastScreenUpdate = DateTime.Now;
}
lock(_InputLock)
{
foreach(var item in _KeyboardEvents)
_DesktopInfo.InputKeyEvent(item);
foreach(var item in _MouseEvents)
_DesktopInfo.InputMouseEvent(item);
_KeyboardEvents.Clear();
_MouseEvents.Clear();
}
Thread.Sleep(10);
} catch(Exception e)
{
Console.WriteLine(e.ToString());
}
}
}
public void Stop()
{
_Running = false;
//if(_LastImage != null)
// _LastImage.Dispose();
_LastImage = null;
if(_DesktopInfo != null)
_DesktopInfo.Dispose();
_DesktopInfo = null;
if(_MouseCapture != null)
_MouseCapture.Dispose();
_MouseCapture = null;
if(_ScreenCapture != null)
_ScreenCapture.Dispose();
_ScreenCapture = null;
}
public Raw_Image GetScreen(Size sz)
{
IntPtr hOldBmp = IntPtr.Zero;
Raw_Image raw = new Raw_Image();
try
{
var dt = DateTime.Now;
if (nDesk == IntPtr.Zero)
{
nDesk = PInvoke.GetDesktopWindow();
}
if (nSrce == IntPtr.Zero)
{
nSrce = PInvoke.GetWindowDC(nDesk);
}
if (nDest == IntPtr.Zero)
{
nDest = PInvoke.CreateCompatibleDC(nSrce);
}
if (nBmp == IntPtr.Zero)
{
nBmp = PInvoke.CreateCompatibleBitmap(nSrce, sz.Width, sz.Height);
}
else if (sz.Height != PreviousSize.Height || sz.Width != PreviousSize.Width)
{// user changed resolution.. get new bitmap
PInvoke.DeleteObject(nBmp);
nBmp = PInvoke.CreateCompatibleBitmap(nSrce, sz.Width, sz.Height);
}
PreviousSize = sz;
hOldBmp = PInvoke.SelectObject(nDest, nBmp);
bool b = PInvoke.BitBlt(nDest, 0, 0, sz.Width, sz.Height, nSrce, 0, 0, CopyPixelOperation.SourceCopy | CopyPixelOperation.CaptureBlt);
Desktop_Sharing_Shared.Screen.PInvoke.BITMAPINFO bi = new PInvoke.BITMAPINFO();
bi.bmiHeader.biSize = 40;
bi.bmiHeader.biWidth = sz.Width;
bi.bmiHeader.biHeight = -sz.Height;
bi.bmiHeader.biPlanes = 1;
bi.bmiHeader.biBitCount = 32;
bi.bmiHeader.biCompression = Desktop_Sharing_Shared.Screen.PInvoke.BitmapCompressionMode.BI_RGB;
bi.bmiHeader.biSizeImage = 0;
bi.bmiHeader.biXPelsPerMeter = 0;
bi.bmiHeader.biYPelsPerMeter = 0;
bi.bmiHeader.biClrUsed = 0;
bi.bmiHeader.biClrImportant = 0;
var dwBmpSize = ((sz.Width * bi.bmiHeader.biBitCount + 31) / 32) * 4 * sz.Height;
raw.Data = new byte[dwBmpSize];
raw.Dimensions = new Rectangle(0, 0, sz.Width, sz.Height);
Desktop_Sharing_Shared.Screen.PInvoke.GetDIBits(nSrce, nBmp, 0, Convert.ToUInt32(sz.Height), raw.Data, ref bi, PInvoke.DIB_Color_Mode.DIB_RGB_COLORS);
//unsafe
//{
// fixed(byte* datb = raw.Data)
// {
// using(Bitmap image = new Bitmap(sz.Width, sz.Height, sz.Width * 4,
// PixelFormat.Format32bppRgb, new IntPtr(datb)))
// {
// image.Save(@"C:\Users\scott\Desktop\text.png", ImageFormat.Png);
// }
// }
//}
//Bitmap bmp = Bitmap.FromHbitmap(nBmp);
PInvoke.SelectObject(nDest, hOldBmp);
// return bmp;
} catch (Exception e)
{
System.Diagnostics.Debug.WriteLine(e.Message);
}
// return new Bitmap(sz.Width, sz.Height);
return(raw);
}
public void Start()
{
_Running = true;
_ScreenCapture = new Desktop_Sharing_Shared.Screen.ScreenCapture(80);
_KeyboardEvents = new List<Desktop_Sharing_Shared.Keyboard.KeyboardEventStruct>();
_MouseEvents = new List<Desktop_Sharing_Shared.Mouse.MouseEventStruct>();
_DesktopInfo = new Desktop_Sharing_Shared.Desktop.DesktopInfo();
_MouseCapture = new Desktop_Sharing_Shared.Mouse.MouseCapture();
_MouseCapture.MouseImageChangedEvent += _MouseCapture_MouseImageChangedEvent;
_MouseCapture.MousePositionChangedEvent += _MouseCapture_MousePositionChangedEvent;
_LastImage = _ScreenCapture.GetScreen(new Size(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height));
_Start();
}
public Raw_Image GetScreen(Size sz)
{
IntPtr hOldBmp = IntPtr.Zero;
Raw_Image raw = new Raw_Image();
try
{
var dt = DateTime.Now;
if(nDesk == IntPtr.Zero)
nDesk = PInvoke.GetDesktopWindow();
if(nSrce == IntPtr.Zero)
nSrce = PInvoke.GetWindowDC(nDesk);
if(nDest == IntPtr.Zero)
nDest = PInvoke.CreateCompatibleDC(nSrce);
if(nBmp == IntPtr.Zero)
nBmp = PInvoke.CreateCompatibleBitmap(nSrce, sz.Width, sz.Height);
else if(sz.Height != PreviousSize.Height || sz.Width != PreviousSize.Width)
{// user changed resolution.. get new bitmap
PInvoke.DeleteObject(nBmp);
nBmp = PInvoke.CreateCompatibleBitmap(nSrce, sz.Width, sz.Height);
}
PreviousSize = sz;
hOldBmp = PInvoke.SelectObject(nDest, nBmp);
bool b = PInvoke.BitBlt(nDest, 0, 0, sz.Width, sz.Height, nSrce, 0, 0, CopyPixelOperation.SourceCopy | CopyPixelOperation.CaptureBlt);
Desktop_Sharing_Shared.Screen.PInvoke.BITMAPINFO bi = new PInvoke.BITMAPINFO();
bi.bmiHeader.biSize = 40;
bi.bmiHeader.biWidth = sz.Width;
bi.bmiHeader.biHeight = -sz.Height;
bi.bmiHeader.biPlanes = 1;
bi.bmiHeader.biBitCount = 32;
bi.bmiHeader.biCompression = Desktop_Sharing_Shared.Screen.PInvoke.BitmapCompressionMode.BI_RGB;
bi.bmiHeader.biSizeImage = 0;
bi.bmiHeader.biXPelsPerMeter = 0;
bi.bmiHeader.biYPelsPerMeter = 0;
bi.bmiHeader.biClrUsed = 0;
bi.bmiHeader.biClrImportant = 0;
var dwBmpSize = ((sz.Width * bi.bmiHeader.biBitCount + 31) / 32) * 4 * sz.Height;
raw.Data = new byte[dwBmpSize];
raw.Dimensions = new Rectangle(0, 0, sz.Width, sz.Height);
Desktop_Sharing_Shared.Screen.PInvoke.GetDIBits(nSrce, nBmp, 0, Convert.ToUInt32(sz.Height), raw.Data, ref bi, PInvoke.DIB_Color_Mode.DIB_RGB_COLORS);
//unsafe
//{
// fixed(byte* datb = raw.Data)
// {
// using(Bitmap image = new Bitmap(sz.Width, sz.Height, sz.Width * 4,
// PixelFormat.Format32bppRgb, new IntPtr(datb)))
// {
// image.Save(@"C:\Users\scott\Desktop\text.png", ImageFormat.Png);
// }
// }
//}
//Bitmap bmp = Bitmap.FromHbitmap(nBmp);
PInvoke.SelectObject(nDest, hOldBmp);
// return bmp;
} catch(Exception e)
{
System.Diagnostics.Debug.WriteLine(e.Message);
}
// return new Bitmap(sz.Width, sz.Height);
return raw;
}
