/// <summary>
/// From http://www.pinvoke.net/default.aspx/user32/EnumDisplayMonitors.html
/// Returns the information about Displays using the Win32 functions
/// </summary>
/// <returns>collection of Display Info</returns>
public static List <Win32Types.DisplayInfo> GetDisplays()
{
List <Win32Types.DisplayInfo> displayList = new List <Win32Types.DisplayInfo>();
Win32Funcs.EnumDisplayMonitors(IntPtr.Zero, IntPtr.Zero,
delegate(IntPtr hMonitor, IntPtr hdcMonitor, ref Win32Types.RECT lprcMonitor, IntPtr dwData)
{
Win32Types.MonitorInfo mi = new Win32Types.MonitorInfo();
mi.cbSize = Marshal.SizeOf(mi);
bool success = Win32Funcs.GetMonitorInfo(hMonitor, ref mi);
if (success)
{
Win32Types.DisplayInfo di = new Win32Types.DisplayInfo();
di.ScreenWidth = (mi.rcMonitor.Right - mi.rcMonitor.Left).ToString();
di.ScreenHeight = (mi.rcMonitor.Bottom - mi.rcMonitor.Top).ToString();
di.MonitorArea = mi.rcMonitor;
di.WorkArea = mi.rcWork;
di.Availability = mi.dwFlags.ToString();
di.hwnd = hMonitor;
displayList.Add(di);
}
return(1);
}, IntPtr.Zero);
return(displayList);
}
void SetupWindowCapture()
{
//UpdateCursorInfo();
// Get the device context
if (isDesktop)
{
hdc = Win32Funcs.GetDC(IntPtr.Zero);
}
else
{
hdc = Win32Funcs.GetWindowDC(hwnd);
}
// Create a device context to use yourself
hDest = Win32Funcs.CreateCompatibleDC(hdc);
Win32Types.RECT windowRect;
if (isDesktop)
{
Win32Types.MonitorInfo mi = new Win32Types.MonitorInfo();
mi.cbSize = Marshal.SizeOf(mi);
Win32Funcs.GetMonitorInfo(hwnd, ref mi);
windowRect = mi.rcMonitor;
}
else
{
// Get the size of the window
Win32Funcs.GetWindowRect(hwnd, out windowRect);
}
// Sets the width and height of the captured window
windowWidth = windowRect.Width;
windowHeight = windowRect.Height;
if (onlyCaptureMouse)
{
windowWidth = cursorRect.Width;
windowHeight = cursorRect.Height;
}
// From http://stackoverflow.com/questions/7502588/createcompatiblebitmap-and-createdibsection-memory-dcs
bmi = new Win32Types.BitmapInfo();
bmi.bmiHeader.Init();
bmi.bmiHeader.biSize = (uint)Marshal.SizeOf(bmi);
bmi.bmiHeader.biWidth = windowWidth;
bmi.bmiHeader.biHeight = -windowHeight; // top-down
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 24;
bmi.bmiHeader.biCompression = Win32Consts.BitmapCompressionMode.BI_RGB;
IntPtr outBits;
curRenderingBitmap = Win32Funcs.CreateDIBSection(hdc, ref bmi, (uint)Win32Consts.DIB_Color_Mode.DIB_PAL_COLORS, out outBits, IntPtr.Zero, (uint)0);
oldhDest = Win32Funcs.SelectObject(hDest, curRenderingBitmap);
}
public static extern bool GetMonitorInfo(IntPtr hMonitor, ref Win32Types.MonitorInfo lpmi);
public byte[] GetWindowBitmapUsingBitBlt(out int numBytesPerRow)
{
windowRect = new Win32Types.RECT();
bool result;
if (isDesktop)
{
Win32Types.MonitorInfo mi = new Win32Types.MonitorInfo();
mi.cbSize = Marshal.SizeOf(mi);
result = Win32Funcs.GetMonitorInfo(hwnd, ref mi);
if (result)
{
windowRect = mi.rcMonitor;
}
}
else
{
// Get the size of the window
result = Win32Funcs.GetWindowRect(hwnd, out windowRect);
}
if (onlyCaptureMouse)
{
windowRect = cursorRect;
result = true;
}
if (!result)
{
// Failed getting rect
numBytesPerRow = 0;
return(null);
}
// If they resized the window we need to reinit the memory
if (windowWidth != windowRect.Width || windowHeight != windowRect.Height)
{
CleanupWindowCapture();
SetupWindowCapture();
windowWidth = windowRect.Width;
windowHeight = windowRect.Height;
}
// Use the previously created device context with the bitmap
Win32Funcs.SelectObject(hDest, curRenderingBitmap);
if (onlyCaptureMouse)
{
if (isDesktop)
{
Win32Funcs.BitBlt(hDest, 0, 0, cursorRect.Width, cursorRect.Height, hdc, windowRect.Left, windowRect.Top, Win32Consts.TernaryRasterOperations.SRCCOPY);
}
else
{
Win32Funcs.BitBlt(hDest, cursorRect.Left, cursorRect.Height, cursorRect.Width, cursorRect.Height, hdc, 0, 0, Win32Consts.TernaryRasterOperations.SRCCOPY);
}
Win32Funcs.DrawIconEx(hDest, 1, 1, cursorHandle, cursorRect.Width, cursorRect.Height, 0, IntPtr.Zero, Win32Consts.DI_NORMAL);
}
else
{
// Copy from the screen device context to the bitmap device context
if (isDesktop)
{
Win32Funcs.BitBlt(hDest, 0, 0, windowRect.Width, windowRect.Height, hdc, windowRect.Left, windowRect.Top, Win32Consts.TernaryRasterOperations.SRCCOPY);
}
else
{
Win32Funcs.BitBlt(hDest, 0, 0, windowRect.Width, windowRect.Height, hdc, 0, 0, Win32Consts.TernaryRasterOperations.SRCCOPY);
}
Win32Funcs.DrawIconEx(hDest, cursorRect.Left, cursorRect.Top, cursorHandle, cursorRect.Width, cursorRect.Height, 0, IntPtr.Zero, Win32Consts.DI_NORMAL);
}
Win32Types.BITMAP bitmap = new Win32Types.BITMAP();
Win32Funcs.GetObjectBitmap(curRenderingBitmap, Marshal.SizeOf(bitmap), ref bitmap);
numBytesPerRow = bitmap.bmWidthBytes;
if (bitmapBytes == null || bitmapBytes.Length != bitmap.bmHeight * bitmap.bmWidthBytes)
{
bitmapBytes = new byte[bitmap.bmHeight * bitmap.bmWidthBytes];
}
if (bitmap.bmBits != IntPtr.Zero)
{
Marshal.Copy(bitmap.bmBits, bitmapBytes, 0, bitmapBytes.Length);
}
if (bitmapBytes == null || bitmapBytes.Length == 0)
{
return(null);
}
return(bitmapBytes);
}
public byte[] GetWindowBitmapUsingBitBlt(out int numBytesPerRow)
{
windowRect = new Win32Types.RECT();
bool result;
if (isDesktop)
{
Win32Types.MonitorInfo mi = new Win32Types.MonitorInfo();
mi.cbSize = Marshal.SizeOf(mi);
result = Win32Funcs.GetMonitorInfo(hwnd, ref mi);
if (result)
{
windowRect = mi.rcMonitor;
}
}
else
{
// Get the size of the window
result = Win32Funcs.GetWindowRect(hwnd, out windowRect);
}
if (onlyCaptureMouse)
{
windowRect = cursorRect;
result = true;
}
if (!result)
{
// Failed getting rect
numBytesPerRow = 0;
return(null);
}
// If they resized the window we need to reinit the memory
if (windowWidth != windowRect.Width || windowHeight != windowRect.Height)
{
CleanupWindowCapture();
SetupWindowCapture();
windowWidth = windowRect.Width;
windowHeight = windowRect.Height;
}
oldhDest = Win32Funcs.SelectObject(hDest, curRenderingBitmap);
Win32Types.BITMAP bitmap = new Win32Types.BITMAP();
Win32Funcs.GetObjectBitmap(curRenderingBitmap, Marshal.SizeOf(bitmap), ref bitmap);
if (onlyCaptureMouse)
{
if (isDesktop)
{
Win32Funcs.BitBlt(hDest, 0, 0, cursorRect.Width, cursorRect.Height, hdc, windowRect.Left, windowRect.Top, Win32Consts.TernaryRasterOperations.SRCCOPY);
}
else
{
Win32Funcs.BitBlt(hDest, cursorRect.Left, cursorRect.Height, cursorRect.Width, cursorRect.Height, hdc, 0, 0, Win32Consts.TernaryRasterOperations.SRCCOPY);
}
Win32Funcs.DrawIconEx(hDest, 1, 1, cursorHandle, cursorRect.Width, cursorRect.Height, 0, IntPtr.Zero, Win32Consts.DI_NORMAL);
}
else
{
// Copy from the screen device context to the bitmap device context
var testing = false;
if (isDesktop)
{
Win32Funcs.BitBlt(hDest, 0, 0, windowRect.Width, windowRect.Height, hdc, windowRect.Left, windowRect.Top, Win32Consts.TernaryRasterOperations.SRCCOPY);
}
else
{
if (testing)
{
Win32Funcs.BitBlt(hDest, 0, 0, windowRect.Width, windowRect.Height, hdc, 0, 0, Win32Consts.TernaryRasterOperations.SRCCOPY);
}
else
{
if (needsGDIp)
{
Bitmap map = new Bitmap(windowRect.Width, windowRect.Height);
Graphics graphics = Graphics.FromHdc(hDest);
try
{
graphics.CopyFromScreen(new System.Drawing.Point(windowRect.Left, windowRect.Top), System.Drawing.Point.Empty, windowRect.Size, CopyPixelOperation.SourceCopy);
}
finally
{
map.Dispose();
graphics.Dispose();
}
}
}
}
Win32Funcs.DrawIconEx(hDest, cursorRect.Left, cursorRect.Top, cursorHandle, cursorRect.Width, cursorRect.Height, 0, IntPtr.Zero, Win32Consts.DI_NORMAL);
}
numBytesPerRow = bitmap.bmWidthBytes;
if (bitmapBytes == null || bitmapBytes.Length != bitmap.bmHeight * bitmap.bmWidthBytes)
{
bitmapBytes = new byte[bitmap.bmHeight * bitmap.bmWidthBytes];
}
if (bitmap.bmBits != IntPtr.Zero)
{
Marshal.Copy(bitmap.bmBits, bitmapBytes, 0, bitmapBytes.Length);
}
if (bitmapBytes == null || bitmapBytes.Length == 0)
{
return(null);
}
Win32Funcs.DeleteObject(bitmap.bmBits);
Win32Funcs.SelectObject(hDest, oldhDest);
return(bitmapBytes);
}