private Bitmap GetDesktopImage()
{
//Debug.Log("Thread: " + Thread.CurrentThread.Name);
WIN32_API.SIZE size;
deskhWnd = WIN32_API.GetDesktopWindow();
IntPtr hDC = WIN32_API.GetDC(deskhWnd);
IntPtr hMemDC = WIN32_API.CreateCompatibleDC(hDC);
size.cx = WIN32_API.GetSystemMetrics(WIN32_API.SM_CXSCREEN);
size.cy = WIN32_API.GetSystemMetrics(WIN32_API.SM_CYSCREEN);
if (m_HBitmap == IntPtr.Zero)
{
m_HBitmap = WIN32_API.CreateCompatibleBitmap(hDC, size.cx, size.cy);
}
if (m_HBitmap != IntPtr.Zero)
{
IntPtr hOld = (IntPtr)WIN32_API.SelectObject(hMemDC, m_HBitmap);
WIN32_API.BitBlt(hMemDC, 0, 0, size.cx, size.cy, hDC, 0, 0, WIN32_API.SRCCOPY);
WIN32_API.SelectObject(hMemDC, hOld);
var a = WIN32_API.DeleteDC(hMemDC);
var b = WIN32_API.ReleaseDC(deskhWnd, hDC);
var o = System.Drawing.Image.FromHbitmap(m_HBitmap);
//Debug.Log(a.ToString() + ":" + b.ToString());
return(o);
}
return(null);
}
/// <summary>
/// Função que realiza a captura por meio da API WIN32
/// <returns>Bitmap</returns>
/// </summary>
public static Bitmap Capture_Desktop_Image()
{
WIN32_API.SIZE size;
IntPtr hDC = WIN32_API.GetDC(WIN32_API.GetDesktopWindow());
IntPtr hMemDC = WIN32_API.CreateCompatibleDC(hDC);
size.cx = WIN32_API.GetSystemMetrics(WIN32_API.SM_CXSCREEN);
size.cy = WIN32_API.GetSystemMetrics(WIN32_API.SM_CYSCREEN);
m_HBitmap = WIN32_API.CreateCompatibleBitmap(hDC, size.cx, size.cy);
if (m_HBitmap != IntPtr.Zero)
{
IntPtr hOld = (IntPtr)WIN32_API.SelectObject(hMemDC, m_HBitmap);
WIN32_API.BitBlt(hMemDC, 0, 0, size.cx, size.cy, hDC, 0, 0, WIN32_API.SRCCOPY);
WIN32_API.SelectObject(hMemDC, hOld);
WIN32_API.DeleteDC(hMemDC);
WIN32_API.ReleaseDC(WIN32_API.GetDesktopWindow(), hDC);
return(System.Drawing.Image.FromHbitmap(m_HBitmap));
}
return(null);
}