O‘zbekiston Respubllkasi Xalq ta'limi vazirligi tasdiqlagan

UYGA VAZIFA

1. Timer obyektining nechta xossasi bor?

1. 
   Oldingi amaliy mashg‘ulotdagi topshiriqlarda ilovalarga Timer
   

obyektini joylang va geometrik shakllarni 2 sekund interval bilan ekranga chiqaring.

2. 
   Button va Label obyektlaridan foydalanib soat dasturini tuzing.
   
3. 
   Ilova oynasining eni 100 dan 800 gacha sekundiga 20 marta 1 qadam bilan o‘zgaradigan ilova yarating.
   
4. 
   Svetofor ilovasini ishlab chiqing. Qizil va yashil shiroqlar 5 sekund, sariq chiroq 1 sekund yonsin. Chiroqlar o‘chganda kul rangga o‘tsin.
   
   1. 
      Ilova Oynasini yarating va unga Timer obyektini joylang.
      
   2. 
      Ilova kodi oynasiga o‘tib, var Form1:TForm1; operatorini toping va undan keyin var i:integer; operatorini kiriting;
      
   3. 
      Timer obyektini ikki marta bosib, uning protsedurasiga quyidagi operatorlarni kiriting:
      

procedure TForm1.Timer1Timer(Sender: TObject); begin

i:=i+1;

if i mod 12 =1 then begin light_off;

canvas.brush.Color:=clRed; canvas.Ellipse(20,20,70,70); end;

if i mod 6 =0 then begin light_off;
canvas.brush.Color:=clYellow; canvas.Ellipse(80,20,130,70);end; if i mod 12 =7 then

begin light_off; canvas.brush.Color:=clGreen; canvas.Ellipse(140,20,190,70); end; end;

4. 
   Bu protseduradan oldin light_off protsedurasini kiriting:
   

procedure light_off; begin

form1.canvas.brush.Color:=clBlue; form1.canvas.Rectangle(10,10,200,80); form1.canvas.brush.Color:=clGray; form1.canvas.Ellipse(20,20,70,70); form1.canvas.Ellipse(80,20,130,70); form1.canvas.Ellipse(140,20,190,70); end;

5. 
   Ilovani ishga tushirib, uning ishini kuzating:
   

1.