public static extern bool GetCursorInfo(out CursorInfo cursorInfo);
private void CaptureFrame()
{
int MSBETWEENCAPTURES = 1000/framesPerSecond;
int msToNextCapture = MSBETWEENCAPTURES;
stopwatch.Reset();
while (!stop) {
stopwatch.Start();
Point captureLocation;
if (recordingWindow != null) {
recordingWindow.Reset();
captureLocation = recordingWindow.Location;
} else {
captureLocation = new Point(recordingRectangle.X, recordingRectangle.Y);
}
// "Capture"
GDI32.BitBlt(hDCDest, 0, 0, recordingSize.Width, recordingSize.Height, hDCDesktop, captureLocation.X, captureLocation.Y, CopyPixelOperation.SourceCopy | CopyPixelOperation.CaptureBlt);
// Mouse
if (RecordMouse) {
CursorInfo cursorInfo = new CursorInfo();
cursorInfo.cbSize = Marshal.SizeOf(cursorInfo);
Point mouseLocation = Cursor.Position;
mouseLocation.Offset(-captureLocation.X, -captureLocation.Y);
if (User32.GetCursorInfo(out cursorInfo)) {
User32.DrawIcon(hDCDest, mouseLocation.X, mouseLocation.Y, cursorInfo.hCursor);
}
}
// add to avi
try {
aviWriter.AddLowLevelFrame(bits0);
} catch (Exception) {
LOG.Error("Error adding frame to avi, stopping capturing.");
break;
}
int restTime = (int)(msToNextCapture - stopwatch.ElapsedMilliseconds);
// Set time to next capture, we correct it if needed later.
msToNextCapture = MSBETWEENCAPTURES;
if (restTime > 0) {
// We were fast enough, we wait for next capture
Thread.Sleep(restTime);
} else if (restTime < 0) {
// Compensating, as we took to long
int framesToSkip = ((-restTime) / MSBETWEENCAPTURES);
int leftoverMillis = (-restTime) % MSBETWEENCAPTURES;
//LOG.InfoFormat("Adding {0} empty frames to avi, leftover millis is {1}, sleeping {2} (of {3} total)", framesToSkip, leftover, sleepMillis, MSBETWEENCAPTURES);
aviWriter.AddEmptyFrames(framesToSkip);
// check how bad it is, if we only missed our target by a few millis we hope the next capture corrects this
if (leftoverMillis > 0 && leftoverMillis <= 2) {
// subtract the leftover from the millis to next capture, do nothing else
msToNextCapture -= leftoverMillis;
} else if (leftoverMillis > 0) {
// it's more, we add an empty frame
aviWriter.AddEmptyFrames(1);
// we sleep to the next time and
int sleepMillis = MSBETWEENCAPTURES - leftoverMillis;
// Sleep to next capture
Thread.Sleep(sleepMillis);
}
}
stopwatch.Reset();
}
Cleanup();
}
private void CaptureFrame()
{
int MSBETWEENCAPTURES = 1000/framesPerSecond;
int msToNextCapture = MSBETWEENCAPTURES;
while (!stop) {
DateTime nextCapture = DateTime.Now.AddMilliseconds(msToNextCapture);
Point captureLocation;
if (recordingWindow != null) {
captureLocation = recordingWindow.Location;
} else {
captureLocation = new Point(recordingRectangle.X, recordingRectangle.Y);
}
// "Capture"
GDI32.BitBlt(hDCDest, 0, 0, recordingSize.Width, recordingSize.Height, hDCDesktop, captureLocation.X, captureLocation.Y, CopyPixelOperation.SourceCopy | CopyPixelOperation.CaptureBlt);
// Mouse
if (RecordMouse) {
CursorInfo cursorInfo = new CursorInfo();
cursorInfo.cbSize = Marshal.SizeOf(cursorInfo);
Point mouseLocation = Cursor.Position;
mouseLocation.Offset(-captureLocation.X, -captureLocation.Y);
if (User32.GetCursorInfo(out cursorInfo)) {
User32.DrawIcon(hDCDest, mouseLocation.X, mouseLocation.Y, cursorInfo.hCursor);
}
}
// add to avi
try {
aviWriter.AddLowLevelFrame(bits0);
} catch (Exception) {
LOG.Error("Error adding frame to avi, stopping capturing.");
break;
}
int sleeptime = (int)(nextCapture.Subtract(DateTime.Now).Ticks / TimeSpan.TicksPerMillisecond);
if (sleeptime > 0) {
Thread.Sleep(sleeptime);
msToNextCapture = MSBETWEENCAPTURES;
} else {
// Compensating
msToNextCapture = Math.Max(0, MSBETWEENCAPTURES - sleeptime);
}
}
Cleanup();
}
public static extern bool GetCursorInfo(out CursorInfo cursorInfo);
/// <summary>
/// This method will capture the current Cursor by using User32 Code
/// </summary>
/// <returns>A Capture Object with the Mouse Cursor information in it.</returns>
public static ICapture CaptureCursor(ICapture capture) {
LOG.Debug("Capturing the mouse cursor.");
if (capture == null) {
capture = new Capture();
}
int x,y;
CursorInfo cursorInfo = new CursorInfo();
IconInfo iconInfo;
cursorInfo.cbSize = Marshal.SizeOf(cursorInfo);
if (User32.GetCursorInfo(out cursorInfo)) {
if (cursorInfo.flags == User32.CURSOR_SHOWING) {
using (SafeIconHandle safeIcon = User32.CopyIcon(cursorInfo.hCursor)) {
if (User32.GetIconInfo(safeIcon, out iconInfo)) {
Point cursorLocation = User32.GetCursorLocation();
// Allign cursor location to Bitmap coordinates (instead of Screen coordinates)
x = cursorLocation.X - iconInfo.xHotspot - capture.ScreenBounds.X;
y = cursorLocation.Y - iconInfo.yHotspot - capture.ScreenBounds.Y;
// Set the location
capture.CursorLocation = new Point(x, y);
using (Icon icon = Icon.FromHandle(safeIcon.DangerousGetHandle())) {
capture.Cursor = icon;
}
if (iconInfo.hbmMask != IntPtr.Zero) {
DeleteObject(iconInfo.hbmMask);
}
if (iconInfo.hbmColor != IntPtr.Zero) {
DeleteObject(iconInfo.hbmColor);
}
}
}
}
}
return capture;
}
