L_TBSetButtonEnabled

L_INT TBSetButtonEnabledExample( pTOOLBARHANDLE pLeadToolbar,L_UINT uButtonID ) 
{ 
   L_INT nRet; 
   nRet = L_TBIsValid ( pLeadToolbar ); 
 
   if (SUCCESS == nRet ) /* check the validity of the toolbar handle */ 
   { 
      L_BOOL fEnabled; 
 
      /* Get the state of the toolbar button */ 
      nRet = L_TBIsButtonEnabled ( pLeadToolbar, uButtonID, &fEnabled ); 
      if(nRet != SUCCESS) 
         return nRet; 
 
       if ( fEnabled ) 
       { 
         nRet = L_TBSetButtonEnabled ( pLeadToolbar, uButtonID, FALSE ); /* Disable the button */ 
         if(nRet != SUCCESS) 
            return nRet; 
       } 
      else 
      { 
         nRet = L_TBSetButtonEnabled ( pLeadToolbar, uButtonID, TRUE ); /* Enable the button */ 
         if(nRet != SUCCESS) 
            return nRet; 
       } 
 
      return SUCCESS ; 
   } 
   else 
      return nRet ; 
}