public static extern int SetWindowExtEx(IntPtr hdc, int nX, int nY, ref SIZE lpSize);
public static extern bool UpdateLayeredWindow(IntPtr hwnd, IntPtr hdcDst,
ref POINT pptDst, ref SIZE psize, IntPtr hdcSrc, ref POINT pptSrc,
uint crKey,
[In] ref BLENDFUNCTION pblend, uint dwFlags);
public static extern int SetBitmapDimensionEx(IntPtr hbm, int nX, int nY, ref SIZE lpSize);
public static extern int SetViewportExtEx(IntPtr hdc, int nX, int nY, ref SIZE lpSize);
public static extern int GetWindowExtEx(IntPtr hdc, ref SIZE lpSize);
public static extern int ScaleWindowExtEx(IntPtr hdc, int nXnum, int nXdenom, int nYnum, int nYdenom,
ref SIZE lpSize);
public static extern int GetViewportExtEx(IntPtr hdc, ref SIZE lpSize);
public static extern int GetTextExtentPoint32(IntPtr hdc, string lpsz, int cbString, ref SIZE lpSize);
public static extern int GetTextExtentExPoint(IntPtr hdc, string lpszStr, int cchString, int nMaxExtent,
ref int lpnFit, int alpDx, ref SIZE lpSize);
public static extern int GetBitmapDimensionEx(IntPtr hBitmap, ref SIZE lpDimension);
public static extern int GetAspectRatioFilterEx(IntPtr hdc, ref SIZE lpAspectRatio);