.TH "SoProto" 3 "Tue Jun 23 2026 23:48:38" "Version 4.0.10" "Coin" \" -*- nroff -*-
.ad l
.nh
.SH NAME
SoProto \- The \fBSoProto\fP class handles PROTO definitions\&.  

.SH SYNOPSIS
.br
.PP
.PP
\fR#include <Inventor/misc/SoProto\&.h>\fP
.PP
Inherits \fBSoNode\fP\&.
.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "\fBSoProto\fP (const SbBool externproto=FALSE)"
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.ti -1c
.RI "virtual \fBSoType\fP \fBgetTypeId\fP (void) const"
.br
.RI "Returns the type identification of an object derived from a class inheriting \fBSoBase\fP\&. This is used for runtime type checking and "downward" casting\&. "
.ti -1c
.RI "\fBSoProtoInstance\fP * \fBcreateProtoInstance\fP (void)"
.br
.ti -1c
.RI "void \fBaddISReference\fP (\fBSoNode\fP *container, const \fBSbName\fP &fieldname, const \fBSbName\fP &interfacename)"
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.ti -1c
.RI "\fBSbName\fP \fBfindISReference\fP (const \fBSoFieldContainer\fP *container, const \fBSbName\fP &fieldname)"
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.ti -1c
.RI "void \fBaddReference\fP (const \fBSbName\fP &name, \fBSoBase\fP *base)"
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.ti -1c
.RI "void \fBremoveReference\fP (const \fBSbName\fP &name)"
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.ti -1c
.RI "\fBSoBase\fP * \fBfindReference\fP (const \fBSbName\fP &name) const"
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.ti -1c
.RI "void \fBaddRoute\fP (const \fBSbName\fP &fromnode, const \fBSbName\fP &fromfield, const \fBSbName\fP &tonode, const \fBSbName\fP &tofield)"
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.ti -1c
.RI "\fBSbName\fP \fBgetProtoName\fP (void) const"
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.ti -1c
.RI "virtual SbBool \fBreadInstance\fP (\fBSoInput\fP *input, unsigned short flags)"
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.ti -1c
.RI "virtual void \fBwrite\fP (\fBSoWriteAction\fP *action)"
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.in -1c

Public Member Functions inherited from \fBSoNode\fP
.in +1c
.ti -1c
.RI "void \fBsetOverride\fP (const SbBool state)"
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.ti -1c
.RI "SbBool \fBisOverride\fP (void) const"
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.ti -1c
.RI "void \fBsetNodeType\fP (const \fBNodeType\fP type)"
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.ti -1c
.RI "\fBNodeType\fP \fBgetNodeType\fP (void) const"
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.ti -1c
.RI "virtual \fBSoNode\fP * \fBcopy\fP (SbBool copyconnections=FALSE) const"
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.ti -1c
.RI "virtual SbBool \fBaffectsState\fP (void) const"
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.ti -1c
.RI "virtual void \fBdoAction\fP (\fBSoAction\fP *action)"
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.ti -1c
.RI "virtual void \fBGLRender\fP (\fBSoGLRenderAction\fP *action)"
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.ti -1c
.RI "virtual void \fBGLRenderBelowPath\fP (\fBSoGLRenderAction\fP *action)"
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.ti -1c
.RI "virtual void \fBGLRenderInPath\fP (\fBSoGLRenderAction\fP *action)"
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.ti -1c
.RI "virtual void \fBGLRenderOffPath\fP (\fBSoGLRenderAction\fP *action)"
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.ti -1c
.RI "virtual void \fBcallback\fP (\fBSoCallbackAction\fP *action)"
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.ti -1c
.RI "virtual void \fBgetBoundingBox\fP (\fBSoGetBoundingBoxAction\fP *action)"
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.ti -1c
.RI "virtual void \fBgetMatrix\fP (\fBSoGetMatrixAction\fP *action)"
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.ti -1c
.RI "virtual void \fBhandleEvent\fP (\fBSoHandleEventAction\fP *action)"
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.ti -1c
.RI "virtual void \fBpick\fP (\fBSoPickAction\fP *action)"
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.ti -1c
.RI "virtual void \fBrayPick\fP (\fBSoRayPickAction\fP *action)"
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.ti -1c
.RI "virtual void \fBsearch\fP (\fBSoSearchAction\fP *action)"
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.ti -1c
.RI "virtual void \fBaudioRender\fP (\fBSoAudioRenderAction\fP *action)"
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.ti -1c
.RI "virtual void \fBgetPrimitiveCount\fP (\fBSoGetPrimitiveCountAction\fP *action)"
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.ti -1c
.RI "virtual void \fBgrabEventsSetup\fP (void)"
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.ti -1c
.RI "virtual void \fBgrabEventsCleanup\fP (void)"
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.ti -1c
.RI "virtual void \fBstartNotify\fP (void)"
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.ti -1c
.RI "virtual void \fBnotify\fP (\fBSoNotList\fP *l)"
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.ti -1c
.RI "SbUniqueId \fBgetNodeId\fP (void) const"
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.ti -1c
.RI "virtual \fBSoChildList\fP * \fBgetChildren\fP (void) const"
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.ti -1c
.RI "virtual void \fBwriteInstance\fP (\fBSoOutput\fP *out)"
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.RI "virtual \fBSoNode\fP * \fBaddToCopyDict\fP (void) const"
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.ti -1c
.RI "virtual void \fBcopyContents\fP (const \fBSoFieldContainer\fP *from, SbBool copyconnections)"
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.ti -1c
.RI "virtual \fBSoFieldContainer\fP * \fBcopyThroughConnection\fP (void) const"
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Public Member Functions inherited from \fBSoFieldContainer\fP
.in +1c
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.RI "void \fBsetToDefaults\fP (void)"
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.RI "SbBool \fBhasDefaultValues\fP (void) const"
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.ti -1c
.RI "SbBool \fBfieldsAreEqual\fP (const \fBSoFieldContainer\fP *container) const"
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.ti -1c
.RI "void \fBcopyFieldValues\fP (const \fBSoFieldContainer\fP *container, SbBool copyconnections=FALSE)"
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.ti -1c
.RI "SbBool \fBset\fP (const char *const fielddata)"
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.ti -1c
.RI "void \fBget\fP (\fBSbString\fP &fielddata)"
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.ti -1c
.RI "virtual int \fBgetFields\fP (\fBSoFieldList\fP &l) const"
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.ti -1c
.RI "virtual int \fBgetAllFields\fP (\fBSoFieldList\fP &l) const"
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.ti -1c
.RI "virtual \fBSoField\fP * \fBgetField\fP (const \fBSbName\fP &name) const"
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.ti -1c
.RI "virtual \fBSoField\fP * \fBgetEventIn\fP (const \fBSbName\fP &name) const"
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.ti -1c
.RI "virtual \fBSoField\fP * \fBgetEventOut\fP (const \fBSbName\fP &name) const"
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.RI "SbBool \fBgetFieldName\fP (const \fBSoField\fP *const field, \fBSbName\fP &name) const"
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.ti -1c
.RI "SbBool \fBenableNotify\fP (const SbBool flag)"
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.ti -1c
.RI "SbBool \fBisNotifyEnabled\fP (void) const"
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.ti -1c
.RI "SbBool \fBset\fP (const char *fielddata, \fBSoInput\fP *input)"
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.ti -1c
.RI "void \fBget\fP (\fBSbString\fP &fielddata, \fBSoOutput\fP *out)"
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.ti -1c
.RI "virtual SbBool \fBvalidateNewFieldValue\fP (\fBSoField\fP *field, void *newval)"
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.ti -1c
.RI "virtual void \fBaddWriteReference\fP (\fBSoOutput\fP *out, SbBool isfromfield=FALSE)"
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.ti -1c
.RI "SbBool \fBgetIsBuiltIn\fP (void) const"
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.ti -1c
.RI "virtual const \fBSoFieldData\fP * \fBgetFieldData\fP (void) const"
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.ti -1c
.RI "virtual void \fBgetFieldsMemorySize\fP (size_t &managed, size_t &unmanaged) const"
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.ti -1c
.RI "void \fBsetUserData\fP (void *userdata) const"
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.ti -1c
.RI "void * \fBgetUserData\fP (void) const"
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.in -1c

Public Member Functions inherited from \fBSoBase\fP
.in +1c
.ti -1c
.RI "void \fBref\fP (void) const"
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.ti -1c
.RI "void \fBunref\fP (void) const"
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.ti -1c
.RI "void \fBunrefNoDelete\fP (void) const"
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.ti -1c
.RI "int32_t \fBgetRefCount\fP (void) const"
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.ti -1c
.RI "void \fBtouch\fP (void)"
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.ti -1c
.RI "SbBool \fBisOfType\fP (\fBSoType\fP type) const"
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.RI "Returns \fRTRUE\fP if the type of this object is either of the same type or inherited from \fItype\fP\&. "
.ti -1c
.RI "virtual \fBSbName\fP \fBgetName\fP (void) const"
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.ti -1c
.RI "virtual void \fBsetName\fP (const \fBSbName\fP &newname)"
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.ti -1c
.RI "void \fBaddAuditor\fP (void *const auditor, const \fBSoNotRec::Type\fP type)"
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.RI "void \fBremoveAuditor\fP (void *const auditor, const \fBSoNotRec::Type\fP type)"
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.ti -1c
.RI "const \fBSoAuditorList\fP & \fBgetAuditors\fP (void) const"
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.RI "SbBool \fBshouldWrite\fP (void)"
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.RI "void \fBassertAlive\fP (void) const"
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.in -1c
.SS "Static Public Member Functions"

.in +1c
.ti -1c
.RI "static void \fBsetFetchExternProtoCallback\fP (SoFetchExternProtoCB *cb, void *closure)"
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.ti -1c
.RI "static \fBSoType\fP \fBgetClassTypeId\fP (void)"
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.ti -1c
.RI "static \fBSoProto\fP * \fBfindProto\fP (const \fBSbName\fP &name)"
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.ti -1c
.RI "static void \fBinitClass\fP (void)"
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Static Public Member Functions inherited from \fBSoNode\fP
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.ti -1c
.RI "static uint32_t \fBgetCompatibilityTypes\fP (const \fBSoType\fP &nodetype)"
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.ti -1c
.RI "static \fBSoType\fP \fBgetClassTypeId\fP (void)"
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.ti -1c
.RI "static \fBSoNode\fP * \fBgetByName\fP (const \fBSbName\fP &name)"
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.ti -1c
.RI "static int \fBgetByName\fP (const \fBSbName\fP &name, \fBSoNodeList\fP &l)"
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.ti -1c
.RI "static void \fBinitClass\fP (void)"
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.RI "Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system\&.    "
.ti -1c
.RI "static void \fBinitClasses\fP (void)"
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.ti -1c
.RI "static SbUniqueId \fBgetNextNodeId\fP (void)"
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.ti -1c
.RI "static int \fBgetActionMethodIndex\fP (const \fBSoType\fP type)"
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.ti -1c
.RI "static void \fBgetBoundingBoxS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.RI "static void \fBGLRenderS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.ti -1c
.RI "static void \fBcallbackS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.RI "static void \fBgetMatrixS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.ti -1c
.RI "static void \fBhandleEventS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.RI "static void \fBpickS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.ti -1c
.RI "static void \fBrayPickS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.ti -1c
.RI "static void \fBsearchS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.ti -1c
.RI "static void \fBwriteS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.ti -1c
.RI "static void \fBaudioRenderS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.ti -1c
.RI "static void \fBgetPrimitiveCountS\fP (\fBSoAction\fP *action, \fBSoNode\fP *node)"
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.in -1c

Static Public Member Functions inherited from \fBSoFieldContainer\fP
.in +1c
.ti -1c
.RI "static void \fBinitClass\fP (void)"
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.RI "Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system\&.    "
.ti -1c
.RI "static \fBSoType\fP \fBgetClassTypeId\fP (void)"
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.RI "This static method returns the \fBSoType\fP object associated with objects of this class\&.    "
.ti -1c
.RI "static void \fBcleanupClass\fP (void)"
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.ti -1c
.RI "static void \fBinitCopyDict\fP (void)"
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.ti -1c
.RI "static void \fBaddCopy\fP (const \fBSoFieldContainer\fP *orig, const \fBSoFieldContainer\fP *copy)"
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.ti -1c
.RI "static \fBSoFieldContainer\fP * \fBcheckCopy\fP (const \fBSoFieldContainer\fP *orig)"
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.ti -1c
.RI "static \fBSoFieldContainer\fP * \fBfindCopy\fP (const \fBSoFieldContainer\fP *orig, const SbBool copyconnections)"
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.ti -1c
.RI "static void \fBcopyDone\fP (void)"
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.in -1c

Static Public Member Functions inherited from \fBSoBase\fP
.in +1c
.ti -1c
.RI "static void \fBinitClass\fP (void)"
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.RI "Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system\&. "
.ti -1c
.RI "static \fBSoType\fP \fBgetClassTypeId\fP (void)"
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.RI "This static method returns the \fBSoType\fP object associated with objects of this class\&. "
.ti -1c
.RI "static void \fBaddName\fP (\fBSoBase\fP *const base, const char *const name)"
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.ti -1c
.RI "static void \fBremoveName\fP (\fBSoBase\fP *const base, const char *const name)"
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.ti -1c
.RI "static void \fBincrementCurrentWriteCounter\fP (void)"
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.ti -1c
.RI "static void \fBdecrementCurrentWriteCounter\fP (void)"
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.ti -1c
.RI "static \fBSoBase\fP * \fBgetNamedBase\fP (const \fBSbName\fP &name, \fBSoType\fP type)"
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.ti -1c
.RI "static int \fBgetNamedBases\fP (const \fBSbName\fP &name, \fBSoBaseList\fP &baselist, \fBSoType\fP type)"
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.ti -1c
.RI "static SbBool \fBread\fP (\fBSoInput\fP *input, \fBSoBase\fP *&base, \fBSoType\fP expectedtype)"
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.ti -1c
.RI "static void \fBsetInstancePrefix\fP (const \fBSbString\fP &c)"
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.ti -1c
.RI "static void \fBsetTraceRefs\fP (SbBool trace)"
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.ti -1c
.RI "static SbBool \fBgetTraceRefs\fP (void)"
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.RI "static SbBool \fBconnectRoute\fP (\fBSoInput\fP *input, const \fBSbName\fP &fromnodename, const \fBSbName\fP &fromfieldname, const \fBSbName\fP &tonodename, const \fBSbName\fP &tofieldname)"
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.ti -1c
.RI "static SbBool \fBreadRoute\fP (\fBSoInput\fP *input)"
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.in -1c
.SS "Protected Member Functions"

.in +1c
.ti -1c
.RI "virtual \fB~SoProto\fP ()"
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.RI "virtual void \fBdestroy\fP (void)"
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.in -1c

Protected Member Functions inherited from \fBSoNode\fP
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.RI "\fBSoNode\fP (void)"
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.RI "virtual \fB~SoNode\fP ()"
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.in -1c

Protected Member Functions inherited from \fBSoFieldContainer\fP
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.ti -1c
.RI "\fBSoFieldContainer\fP (void)"
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.ti -1c
.RI "virtual \fB~SoFieldContainer\fP ()"
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.in -1c

Protected Member Functions inherited from \fBSoBase\fP
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.ti -1c
.RI "\fBSoBase\fP (void)"
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.RI "virtual \fB~SoBase\fP ()"
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.ti -1c
.RI "SbBool \fBhasMultipleWriteRefs\fP (void) const"
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.RI "SbBool \fBwriteHeader\fP (\fBSoOutput\fP *out, SbBool isgroup, SbBool isengine) const"
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.ti -1c
.RI "void \fBwriteFooter\fP (\fBSoOutput\fP *out) const"
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.ti -1c
.RI "virtual const char * \fBgetFileFormatName\fP (void) const"
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.ti -1c
.RI "virtual \fBSoNotRec\fP \fBcreateNotRec\fP (void)"
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.in -1c
.SS "Additional Inherited Members"


Public Types inherited from \fBSoNode\fP
.in +1c
.ti -1c
.RI "enum \fBNodeType\fP { \fBINVENTOR\fP = 0x0000, \fBVRML1\fP = 0x0001, \fBVRML2\fP = 0x0002, \fBINVENTOR_1\fP = 0x0004, \fBINVENTOR_2_0\fP = 0x0008, \fBINVENTOR_2_1\fP = 0x0010, \fBINVENTOR_2_5\fP = 0x0020, \fBINVENTOR_2_6\fP = 0x0040, \fBCOIN_1_0\fP = 0x0080, \fBCOIN_2_0\fP = 0x0100, \fBEXTENSION\fP = 0x0200, \fBCOIN_2_2\fP = 0x0400, \fBCOIN_2_3\fP = 0x0800, \fBCOIN_2_4\fP = 0x1000, \fBINVENTOR_5_0\fP = 0x2000, \fBCOIN_2_5\fP = 0x4000, \fBCOIN_3_0\fP = 0x8000, \fBINVENTOR_6_0\fP = 0x10000, \fBCOIN_4_0\fP = 0x20000 }"
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.in -1c

Protected Types inherited from \fBSoBase\fP
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.ti -1c
.RI "enum \fBBaseFlags\fP { \fBIS_ENGINE\fP = 0x01, \fBIS_GROUP\fP = 0x02 }"
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.in -1c

Static Protected Member Functions inherited from \fBSoNode\fP
.in +1c
.ti -1c
.RI "static const \fBSoFieldData\fP ** \fBgetFieldDataPtr\fP (void)"
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.RI "static void \fBsetNextActionMethodIndex\fP (int index)"
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.ti -1c
.RI "static int \fBgetNextActionMethodIndex\fP (void)"
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.RI "static void \fBincNextActionMethodIndex\fP (void)"
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.RI "static void \fBsetCompatibilityTypes\fP (const \fBSoType\fP &nodetype, const uint32_t bitmask)"
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.in -1c

Static Protected Member Functions inherited from \fBSoBase\fP
.in +1c
.ti -1c
.RI "static uint32_t \fBgetCurrentWriteCounter\fP (void)"
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.ti -1c
.RI "static void \fBstaticDataLock\fP (void)"
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.RI "static void \fBstaticDataUnlock\fP (void)"
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.in -1c

Protected Attributes inherited from \fBSoNode\fP
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.ti -1c
.RI "SbUniqueId \fBuniqueId\fP"
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Protected Attributes inherited from \fBSoFieldContainer\fP
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.RI "SbBool \fBisBuiltIn\fP"
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.in -1c

Static Protected Attributes inherited from \fBSoNode\fP
.in +1c
.ti -1c
.RI "static SbUniqueId \fBnextUniqueId\fP = 1"
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.ti -1c
.RI "static int \fBnextActionMethodIndex\fP = 0"
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.in -1c
.SH "Detailed Description"
.PP 
The \fBSoProto\fP class handles PROTO definitions\&. 

\fBSoProto\fP and \fBSoProtoInstance\fP are mostly internal classes\&. They're designed to read and handle VRML97 PROTOs\&. However, it's possible to define your PROTOs in C++\&. You must define your PROTO in a char array, and read that char array using \fBSoInput::setBuffer()\fP and \fBSoDB::readAllVRML()\fP\&. Example:

.PP
.PP
.nf
char myproto[] =
"#VRML V2\&.0 utf8\\n"
"PROTO ColorCube [\\n"
"  field SFColor color 1 1 1\\n"
"  field SFVec3f size 1 1 1\\n"
"]\\n"
"{\\n"
"  Shape {\\n"
"    appearance Appearance {\\n"
"      material Material {\\n"
"        diffuseColor IS color\\n"
"      }\\n"
"    }\\n"
"    geometry Box { size IS size }\\n"
"  }\\n"
"}\\n"
"ColorCube { color 1 0 0 size 2 1 1 }\\n";

SoInput in;
in\&.setBuffer(myproto, strlen(myproto));
SoVRMLGroup * protoroot = SoDB::readAllVRML(&in);
.fi
.PP

.PP
Now you can create new instances of the ColorCube PROTO using \fBSoProto::findProto()\fP and \fBSoProto::createProtoInstance()\fP\&. If you want to insert PROTO instances into your scene graph, you should insert the node returned from \fBSoProtoInstance::getRootNode()\fP\&.

.PP
See http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.8 for more information about PROTOs in VRML97\&. 
.SH "Constructor & Destructor Documentation"
.PP 
.SS "SoProto::SoProto (const SbBool externproto = \fRFALSE\fP)"
Constructor\&. 
.SS "SoProto::~SoProto ()\fR [protected]\fP, \fR [virtual]\fP"
Destructor\&. 
.SH "Member Function Documentation"
.PP 
.SS "\fBSoType\fP SoProto::getTypeId (void ) const\fR [virtual]\fP"

.PP
Returns the type identification of an object derived from a class inheriting \fBSoBase\fP\&. This is used for runtime type checking and "downward" casting\&. Usage example:

.PP
.PP
.nf
void foo(SoNode * node)
{
  if (node\->getTypeId() == SoFile::getClassTypeId()) {
    SoFile * filenode = (SoFile *)node;  // safe downward cast, knows the type
  }
}
.fi
.PP

.PP
For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in \fIall\fP subclasses\&. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the predefined macros available through for instance \fBInventor/nodes/SoSubNode\&.h\fP (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), \fBInventor/engines/SoSubEngine\&.h\fP (for engine classes) and so on\&.

.PP
For more information on writing Coin extensions, see the class documentation of the top level superclasses for the various class groups\&. 
.PP
Implements \fBSoBase\fP\&.
.SS "\fBSoProto\fP * SoProto::findProto (const \fBSbName\fP & name)\fR [static]\fP"
Returns the PROTO definition named \fIname\fP or NULL if not found\&. 
.SS "\fBSoProtoInstance\fP * SoProto::createProtoInstance (void )"
Creates an instance of the PROTO\&. 
.SS "void SoProto::addISReference (\fBSoNode\fP * container, const \fBSbName\fP & fieldname, const \fBSbName\fP & interfacename)"
Adds an IS reference for this PROTO definition\&. 
.SS "\fBSbName\fP SoProto::findISReference (const \fBSoFieldContainer\fP * container, const \fBSbName\fP & fieldname)"
If \fIcontainer\fP is a PROTO definition node with an IS interface field named \fIfieldname\fP, return the interface name, otherwise return an empty \fBSbName\fP\&. 
.SS "void SoProto::addReference (const \fBSbName\fP & name, \fBSoBase\fP * base)"
Adds a reference for this PROTO definition\&. 
.SS "void SoProto::removeReference (const \fBSbName\fP & name)"
Removes a reference for this PROTO definition\&. 
.SS "\fBSoBase\fP * SoProto::findReference (const \fBSbName\fP & name) const"
Finds a reference for this PROTO definition\&. 
.SS "void SoProto::addRoute (const \fBSbName\fP & fromnode, const \fBSbName\fP & fromfield, const \fBSbName\fP & tonode, const \fBSbName\fP & tofield)"
Adds a ROUTE for this PROTO definition\&. 
.SS "\fBSbName\fP SoProto::getProtoName (void ) const"
Returns the PROTO name\&. 
.SS "SbBool SoProto::readInstance (\fBSoInput\fP * in, unsigned short flags)\fR [virtual]\fP"
This method is mainly intended for internal use during file import operations\&.

.PP
It reads a definition of an instance from the input stream \fIin\fP\&. The input stream state points to the start of a serialized / persistent representation of an instance of this class type\&.

.PP
\fRTRUE\fP or \fRFALSE\fP is returned, depending on if the instantiation and configuration of the new object of this class type went OK or not\&. The import process should be robust and handle corrupted input streams by returning \fRFALSE\fP\&.

.PP
\fIflags\fP is used internally during binary import when reading user extension nodes, group nodes or engines\&. 
.PP
Reimplemented from \fBSoNode\fP\&.
.SS "void SoProto::write (\fBSoWriteAction\fP * action)\fR [virtual]\fP"
Action method for \fBSoWriteAction\fP\&.

.PP
Writes out a node object, and any connected nodes, engines etc, if necessary\&. 
.PP
Reimplemented from \fBSoNode\fP\&.
.SS "void SoProto::destroy (void )\fR [protected]\fP, \fR [virtual]\fP"
Cleans up all hanging references to and from this instance, and then commits suicide\&.

.PP
Called automatically when the reference count goes to zero\&. 
.PP
Reimplemented from \fBSoBase\fP\&.

.SH "Author"
.PP 
Generated automatically by Doxygen for Coin from the source code\&.