144______________________________________________ 3

( Cut), Ctrl-V      Clipboard   
( Paste), Ctrl-Z     . , -
       .  
      .

        -
 .      false   ReadOnly.   -
      .

 Text      AnsiString (. -
   15).      
     .    -
   . , 

Editll->Text =5.1;

          
5,1.          
StrToFloat        ,  StrTo-
Int      .     -
  (,   ),   -
   EConvertError (  .   4 -
 4.9).        -
. :

int ;

try
(

 = StrToInt(Editl->Text);

}

catch (EConvertError&)

(

ShowMessage("   ;  ");

         -
  . ,     
 ,        
,      . ,  -
      .   ,  
 4   4.3.2 ,   ,    -
 , ,       
       .   7   7.3 ,
    Edit     , 
 .

 MaxLength     . 
MaxLength = 0,     .     Max-
Length    ,    -
.

 Modified,     , , -
     .      -
,         Modified  
 false.           -
 (true  false) ,      .

 AutoSelect ,     
      .    -
   SelLength, SelStart, SelText,  -
   ,     
    . ,      