private static extern IntPtr VixVM_PowerOff(IntPtr vmHandle,
VixVMPowerOpOptions powerOffOptions,
VixEventProc callbackProc,
IntPtr clientData);
private static extern IntPtr VixVM_RevertToSnapshot(IntPtr vmHandle,
IntPtr snapshotHandle,
VixVMPowerOpOptions options,
IntPtr propertyListHandle,
VixEventProc callbackProc,
IntPtr clientData);
private static extern IntPtr VixVM_PowerOn(IntPtr vmHandle,
VixVMPowerOpOptions powerOnOptions,
IntPtr propertyListHandle,
VixEventProc callbackProc,
IntPtr clientData);