Functions and Directives Functions and Directives

Function _conUnRegisterF() Foundation

Unregisters C-API functions at runtime

Syntax
XPPAPIRET XPPAPIENTRY _conUnRegisterF(XppRegisterTable *tbl);
Parameters
XppRegisterTable *tbl
Information required for unregistration. It is provided by the function _ConRegisterF().
Return

The function returns a value > 0 when unregistration is successful.

Description

The function _conUnRegisterF() removes symbols of C-API functions from the symbol table that have been addded with the function _conRegisterF().

Examples
// ---------------------------------------------- 
// Xbase++ PRG code for dynamic unregistration of 
// C-API function symbols 
// 

  #include "DLL.CH" 


  DllCall( "F2BIN.DLL", DLL_CDECL, "my_unregister" ) 
  DllUnload( "F2BIN.DLL" ) 


// ------------------------------------------------ 
// C-API code for dynamic unregistration of symbols 

/* 
* Static structure that holds all information required 
* for unregistration. It is filled by _conRegisterF() 
*/ 
XppRegisterTable MyFuncsInfo; 

/* Function which encapsulates unregistration. It can be called 
* from the DLL startup routine or via DllCall(). 
*/ 
int my_unregister() { 
   return _conUnRegisterF(&MyFuncsInfo); 
}
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