static public extern bool GetMenuItemRect(IntPtr hWnd, IntPtr hMenu, uint Item, ref APIsStructs.RECT rc);
public static extern void SendMessage(IntPtr hWnd, int msg, int wParam, ref APIsStructs.RECT lParam);
static public extern int ScrollWindowEx(IntPtr hWnd, int dx, int dy,
ref APIsStructs.RECT rcScroll, ref APIsStructs.RECT rcClip, IntPtr UpdateRegion, ref APIsStructs.RECT rcInvalidated, uint flags);
static public extern bool ValidateRect(IntPtr hWnd, ref APIsStructs.RECT rcInvalidated);
public static extern bool GetWindowRect(IntPtr hWnd, ref APIsStructs.RECT rect);
public static extern int FillRect(IntPtr hDC, ref APIsStructs.RECT rect, IntPtr hBrush);
static public extern int DrawFrameControl(IntPtr hDc, APIsStructs.RECT rect, APIsEnums.DrawFrameControlFlags nType, APIsEnums.DrawFrameControlStateFlags nState);
public extern static int InvalidateRect(IntPtr hWnd, ref APIsStructs.RECT rc, int bErase);
public extern static int GetClientRect(IntPtr hWnd, ref APIsStructs.RECT rc);
public extern static int DrawText(IntPtr hdc, string lpString, int nCount, ref APIsStructs.RECT lpRect, APIsEnums.DrawTextFormatFlags flags);
static public extern int DrawThemeBackground(
IntPtr hWnd, IntPtr hDc, int iPartId, int iStateId,
APIsStructs.RECT pRect, APIsStructs.RECT pClipRect);