public static extern int SetDIBits
(
HDC hdc, // handle to DC
HBitmap hbmp, // handle to bitmap
uint uStartScan, // starting scan line
uint cScanLines, // number of scan lines
IntPtr lpvBits, // array of bitmap bits
BITMAPINFO lpbmi, // bitmap data
ColorUseOptions fuColorUse // type of color indexes to use
);
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);
}
[DllImport(ExternDll.Gdiplus, SetLastError = true, ExactSpelling = true, CharSet = CharSet.Unicode)] // 3 = Unicode public static extern int GdipCreateBitmapFromHBITMAP(HBitmap hbitmap, IntPtr hpalette, out IntPtr bitmap);
