#ifndef _NTLPCAPI_H
// begin_private

/**
 * Defines flags for NtAlpcCancelMessage
 */
typedef enum _ALPC_CANCEL_FLAGS
{
    ALPC_CANCELFLG_NONE                 = 0x00000000,
    ALPC_CANCELFLG_TRY_CANCEL           = 0x00000001,
    ALPC_CANCELFLG_RESERVED_CAPTURE32   = 0x00000004, // Used to select alternate PALPC_CONTEXT_ATTR field offsets for user-mode capture.
    ALPC_CANCELFLG_NO_CONTEXT_CHECK     = 0x00000008, // Bypasses the default message-context ownership comparison and uses the alternate validation path.
    ALPC_CANCELFLG_FLUSH                = 0x00010000,
} ALPC_CANCEL_FLAGS;

// end_private
#endif
View code on GitHub