public IntPtr Capture()
{
if (_hMemDc.Equals(IntPtr.Zero) || _hScrDc.Equals(IntPtr.Zero))
{
return(IntPtr.Zero);
}
var ret = Win32Funcs.PrintWindow(_hWnd, _hMemDc, (uint)Win32Consts.PrintWindowMode.PW_RENDERFULLCONTENT);
return(ret ? _hBitmap : IntPtr.Zero);
}
public bool Init(string windowName)
{
var handle = Win32Funcs.FindWindow(null, windowName);
if (handle.Equals(IntPtr.Zero))
{
return(false);
}
return(Init(handle));
}
public bool Capture(out IntPtr bitsPtr, out int bufferSize, out Win32Types.Rect rect)
{
bitsPtr = _hBitmap;
bufferSize = _bmpDataSize;
rect = _clientRect;
if (_hBitmap.Equals(IntPtr.Zero) || _hMemDc.Equals(IntPtr.Zero) || _hScrDc.Equals(IntPtr.Zero))
{
return(false);
}
var ret = Win32Funcs.PrintWindow(_hWnd, _hMemDc, (uint)Win32Consts.PrintWindowMode.PW_RENDERFULLCONTENT);
return(ret);
}
public void Cleanup()
{
if (_hBitmap.Equals(IntPtr.Zero))
{
return;
}
Win32Funcs.SelectObject(_hMemDc, _hOldBitmap);
Win32Funcs.DeleteObject(_hBitmap);
Win32Funcs.DeleteDC(_hMemDc);
Win32Funcs.ReleaseDC(_hWnd, _hScrDc);
_hWnd = IntPtr.Zero;
_hScrDc = IntPtr.Zero;
_hMemDc = IntPtr.Zero;
_hBitmap = IntPtr.Zero;
_hOldBitmap = IntPtr.Zero;
}
public bool Init(IntPtr handle)
{
_hWnd = handle;
if (!Win32Funcs.GetWindowRect(_hWnd, out _windowRect) ||
!Win32Funcs.GetClientRect(_hWnd, out _clientRect))
{
return(false);
}
_bmpDataSize = _windowRect.Width * _windowRect.Height * 3;
_hScrDc = Win32Funcs.GetWindowDC(_hWnd);
_hBitmap = Win32Funcs.CreateCompatibleBitmap(_hScrDc, _windowRect.Width, _windowRect.Height);
_hMemDc = Win32Funcs.CreateCompatibleDC(_hScrDc);
_hOldBitmap = Win32Funcs.SelectObject(_hMemDc, _hBitmap);
return(true);
}