Skip to main content

MobjGetHookInfo

Get information about a hook event.

Syntax​

AIL_INT MobjGetHookInfo(
    AIL_ID    EventId,    //in
    AIL_INT64 InfoType,   //in
    void *    UserVarPtr  //out
)

Description​

This function allows you to get information about the event that caused the hook function to be called. MobjGetHookInfo should only be called within the scope of an object hook-handler function (see MobjHookFunction).

Parameters​

EventId (in, AIL_ID)​

Specifies the object-related event identifier received by the hook-handler function (see MobjHookFunction).

InfoType (in, AIL_INT64)​

Specifies the type of information about which to inquire.

UserVarPtr *(out, void)​

Specifies the address in which to write the requested information.

Parameter Associations​

For inquiring information​

M_OBJECT_ID​

Inquires the object identifier that called the hook-handler function.

ValueDescription
Object identifierSpecifies the object identifier that called the hook-handler function.

Return Value​

Type: AIL_INT

The returned value is M_NULL if successful. If the operation fails, a non-null (!M_NULL) value is returned.

Copyright © 2026 Zebra Technologies.