176       ________________________________________ 3

     .     
Alt+B,       .

     OnClick,     .
      ,  
     .      -
,        .
      4   4.3.

 Cancel,     true, ,   -
  ESC      .  -
    true      -
 ,            -
  ESC.

 Default,     true, ,   -
   Enter      ,
          . ,   -
  Enter     ,  -  -
   .        Default 
 true,    Enter    ,   
   (   .  4.1.7
 4).

    ModalResult    , -
     4.7.3.     
    mrNone.

 ,  ,      Click. -
      , ..   
OnClick.   ,     
-   . , ,  , 
      ѻ  ѻ    -
    ,    -
 OnClick  Buttonl.       -
view  true (.  4.7.1  4)      OnKeyPresss
 

if ((=='')II(=='')) Buttonl->Click();

         Button,   BitBtn. -
      BitBtn.   
   Glyph.       
 Glyph     ,  
. 3.22.     Load       
       .bmp,  
.  ,  C++Builder    -
  .     \lmages\Buttons,   
images    C++Builder 4 ,   \-
gram Files\Common Files\Borland Shared.

 ,    ,     -
      .

        
  1616.     . 
   ,    Enabled  false.
         
 .        
SpeedButton,     ,     -
 .       -
.         NumGlyphs, 