public extern static bool VCAInitSdk(IntPtr hWndMain, DISPLAYTRANSTYPE bInitVidDev, bool bInitAudDev);
public extern static bool VCAInitSdk(IntPtr hWndMain, DISPLAYTRANSTYPE eDispTransType, bool bLnitAuDev);
public extern static bool VCAInitSdk(IntPtr hWndMain, DISPLAYTRANSTYPE bInitVidDev, bool aa);
public static extern bool VCAInitSdk(IntPtr hWndMain, DISPLAYTRANSTYPE bInitVidDev,bool aa);