/// <summary>
/// 绘制
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MonitorUserControl_Paint(object sender, PaintEventArgs e)
{
if (_objRef == null)
{
return;
}
if (SM.TryEnter(_objRef))
{
try
{
if (_bitmap == null)
{
return;
}
Point point = new Point(AutoScrollPosition.X, AutoScrollPosition.Y);
e.Graphics.DrawImage(_bitmap, point);
}
finally
{
SM.Exit(_objRef);
}
}
}
/// <summary>
/// 屏幕
/// </summary>
public void UpdateDisplay()
{
if (_objRef == null)
{
return;
}
if (SM.TryEnter(_objRef))
{
try
{
byte[] bitmapBytes = _objRef.GetDesktopBitmapBytes();
if (bitmapBytes.IsNullOrEmpty())
{
return;
}
var stream = new MemoryStream(bitmapBytes, false);
_bitmap = (Bitmap)Image.FromStream(stream);
Point point = new Point(AutoScrollPosition.X, AutoScrollPosition.Y);
CreateGraphics().DrawImage(_bitmap, point);
}
finally
{
SM.Exit(_objRef);
}
}
}
public void TestMonitorWithLockTaken()
{
this.Test(() =>
{
object obj = new object();
bool lockTaken = false;
Monitor.TryEnter(obj, ref lockTaken);
if (lockTaken)
{
Monitor.Exit(obj);
}
Specification.Assert(lockTaken, "lockTaken is false");
},
GetConfiguration());
}
public static bool TryEnter(object obj, TimeSpan timeout)
{
return(SMonitor.TryEnter(obj, timeout));
}
public static bool TryEnter(object obj)
{
return(SMonitor.TryEnter(obj));
}
