## Tcl9.0.3/Tk9.0.3 Documentation > [incr Tcl] Package C API, version 4.3.5 > Object

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### NAME

Itcl_CreateObject, Itcl_DeleteObject, Itcl_FindObject, Itcl_IsObject, Itcl_IsObjectIsa — 級即値の操作　　　Manipulate an class instance.

### SYNOPSIS

#include <itclInt.h>
void
Itcl_PreserveData(cdata)
void
Itcl_ReleaseData(cdata)
void
Itcl_EventuallyFree(cdata, fproc)

### 引数 ARGUMENTS

Tcl_FreeProc *fproc (入力in)
  区域が解放された時に呼出すべき函数の番地｡　　　 Address of function to call when the block is to be freed.

void *clientData (入力in)
  任意の１語値｡　　　 Arbitrary one-word value.

### DESCRIPTION

### KEYWORDS

free, memory
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