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7 .TH MP_REGISTERFOROBJECTVISIBILITYCHANGES 3MPAPI "Feb 15, 2006"
9 MP_RegisterForObjectVisibilityChanges \- register a client function to be
14 cc [ \fIflag\fR\&.\|.\|. ] \fIfile\fR\&.\|.\|. \fB-lMPAPI\fR [ \fIlibrary\fR\&.\|.\|. ]
17 \fBMP_STATUS\fR \fBMP_RegisterForObjectVisibilityChanges\fR(
18 \fBMP_OBJECT_PROPERTY_FN\fR \fIpClientFn\fR, \fBMP_OBJECT_TYPE\fR \fIobjectType\fR,
19 \fBvoid\fR \fI*pCallerData\fR, \fBMP_OID\fR \fIpluginOid\fR);
29 A pointer to an object ID that has type \fBMP_OBJECT_VISIBILITY_FN\fR function
30 defined by the client. With a successful return, this function is called to
31 inform the client of objects that have had one or more properties changed.
37 \fB\fIobjectType\fR\fR
40 The type of object the client wishes to register for property change callbacks.
46 \fB\fIpCallerData\fR\fR
49 A pointer that is passed to the callback routine with each event. This might be
50 used by the caller to correlate the event to the source of the registration.
59 If this is a valid plugin object ID, then registration is limited to that
60 plugin. If this is zero, then the registration is for all plugins.
66 The \fBMP_RegisterForObjectVisibilityChanges()\fR function registers a client
67 function to be called whenever the property of an object changes. The function
68 specified by \fIpClientFn\fR is called whenever objects appear or disappear.
71 It is not an error to re-register a client function. However, a client function
72 has only one registration. The first call to deregister a client function will
73 deregister it no matter how many calls to register the function have been made.
78 \fB\fBMP_STATUS_INVALID_OBJECT_TYPE\fR\fR
82 The \fIpluginOid\fR or \fIobjectType\fR does not specify any valid object type.
83 This is most likely to happen if an uninitialized object ID is passed to the
90 \fB\fBMP_STATUS_OBJECT_NOT_FOUND\fR\fR
94 The \fIpluginOid\fR owner ID or object sequence number is invalid.
100 \fB\fBMP_STATUS_INVALID_PARAMETER\fR\fR
104 The \fIpCallerData\fR is null or if the \fIpluginOid\fR has a type subfield
105 other than \fBMP_OBJECT_TYPE_PLUGIN\fR, or when \fIobjectType\fR is invalid.
111 \fB\fBMP_STATUS_SUCCESS\fR\fR
115 The operation is successful.
121 \fB\fBMP_STATUS_FN_REPLACED\fR\fR
125 An existing client function is replaced with the one specified in
132 See \fBattributes\fR(5) for descriptions of the following attributes:
140 ATTRIBUTE TYPE ATTRIBUTE VALUE
142 Interface Stability T{
143 Standard: ANSI INCITS 412 Multipath Management API
152 \fBlibMPAPI\fR(3LIB), \fBMP_DeregisterForObjectVisibilityChanges\fR(3MPAPI),
156 \fIMultipath Management API Version 1.0\fR