   ______________259

^

crHelp (      ,  
. 4.12): .

void_fastcall TFormI::SpeedButtonlClick(TObject *Sender)
(
Cursor = crHelp;

}

^L-t            , ,
f^~ StaticTextl.   OnMouseDown  Imagel    
 :

void   fastcall TFormI::ImagelMouseDown(TObject *Sender,

"TMouseButton Button, TShiftState Shift, int X, int Y)
(

if (Sender \= Imagel) Cursor = crDefault;

ML       if (Cursor != crHelp) return;

^^       if (Y < 120)
{

if (X < 165)

StaticTextl->Caption = "...";

else if (X < 270)

}
else

Cursor = crDefault;

}

       , 
   crHelp      .  -
.          ,    if
,1           ,   
I    ,   StaticTextl       .

 4.3.2  

^     4.3.2.1  

^J       C++Builder   ,  
^ .  :

^ |                 _____________________

^| OnKeyDown   !       -
^^               .    ,  -
^               ,  ' ,     -
^J _____                       ___          _____

^J : OnKeyPress         -
^                .      ,
^R               |       , 
^               |    ,    -
^ __________:    ______________________

^ OnKeyUp            -
^                .    ,  -
^                ,   ,     -

^ _________                        _____________