public static void Record()
{
recording = true;
HWnd hDesk = User32.GetDesktopWindow();
HDc hdcSrc = User32.GetWindowDC(hDesk);
User32.GetWindowRect(hDesk, out Rect rect);
int w = rect.Width;
int h = rect.Height;
HDc hdcDest = Gdi32.CreateCompatibleDC(hdcSrc);
HBitmap hBitmap = Gdi32.CreateCompatibleBitmap(hdcSrc, w, h);
IntPtr hold = Gdi32.SelectObject(hdcDest, hBitmap);
Gdi32.DeleteDC(hold);
var m = typeof(Bitmap).GetMethod("FromGDIplus", System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.NonPublic);
Func <IntPtr, Bitmap> f = (Func <IntPtr, Bitmap>)m.CreateDelegate(typeof(Func <IntPtr, Bitmap>));
var st = DateTime.Now;
int fps = 0;
while (recording)
{
Gdi32.BitBlt(hdcDest, 0, 0, w, h, hdcSrc, 0, 0, TernaryRasterOperations.SRCCOPY);
GdiPlus.GdipCreateBitmapFromHBITMAP(hBitmap, IntPtr.Zero, out IntPtr bmpPtr);
RecordCallBack?.Invoke(f(bmpPtr));
fps++;
var et = DateTime.Now;
if ((et - st).TotalMilliseconds >= 1000)
{
FPS = 1000 / fps;
fps = 0;
st = et;
}
}
User32.ReleaseDC(hDesk, hdcSrc);
Gdi32.DeleteObject(hBitmap);
}
public static extern RgnStatus ExcludeUpdateRgn([In] HDc hDC, [In] HWnd hWnd);
public static extern bool ReleaseDC(HWnd hWnd, [In] HDc hDC);
public static extern bool BitBlt(HDc hdc, int x, int y, int cx, int cy, HDc hdcSrc, int x1, int y2, TernaryRasterOperations dwRop);
public static extern void AlphaBlend(HDc hDc, int xoriginDest, int yoriginDest, int wDest, int hDest, HDc hdcSrc, int xoriginSrc, int yoriginSrc, int wSrc, int hSrc, BlendFunction ftn);
public static extern HDc CreateCompatibleDC(HDc hdc);
public static extern HBitmap CreateCompatibleBitmap(HDc hdc, int cx, int cy);
