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- //---------------------------------------------------------------------------
- #include <vcl\vcl.h>
- #pragma hdrstop
-
- #include "Rund2.h"
- //---------------------------------------------------------------------------
- #pragma resource "*.dfm"
-
- class TKreis
- {
- public:
- int x, y, Dicke;
- void Erscheinen (void);
- void Bewegen (void);
- void Verschwinden (void);
- TKreis (int xx, int yy, int dd);
- };
-
- TKreis *Kreis;
- TForm1 *Form1;
- //---------------------------------------------------------------------------
- TKreis::TKreis(int xx, int yy, int dd)
- {
- x = xx; y = yy; Dicke = dd;
- }
- //---------------------------------------------------------------------------
- void TKreis::Erscheinen (void)
- {
- Form1->Canvas->Ellipse (x, y, x+Dicke, y+Dicke);
- }
- //---------------------------------------------------------------------------
- void TKreis::Bewegen (void)
- {
- TRect Quelle, Ziel;
- for (int i=x-5; i<Form1->ClientWidth-Dicke-x-5; i++)
- {
- Quelle = Rect(i, y-5, i+Dicke+5, y+Dicke+5);
- Ziel = Rect(i+1, y-5, i+Dicke+6, y+Dicke+5);
- Form1->Canvas->CopyRect(Ziel, Form1->Canvas, Quelle);
- // Bremse, abhΣngig vom Prozessortakt!
- for (int j=0; j<1000000; j++) ;
- }
- }
- //---------------------------------------------------------------------------
- void TKreis::Verschwinden (void)
- {
- Form1->Refresh ();
- }
- //---------------------------------------------------------------------------
- __fastcall TForm1::TForm1(TComponent* Owner)
- : TForm(Owner)
- {
- }
- //---------------------------------------------------------------------------
- void __fastcall TForm1::Button1Click(TObject *Sender)
- {
- Kreis->Erscheinen ();
- }
- //---------------------------------------------------------------------------
- void __fastcall TForm1::Button2Click(TObject *Sender)
- {
- Kreis->Bewegen ();
- }
- //---------------------------------------------------------------------------
- void __fastcall TForm1::Button3Click(TObject *Sender)
- {
- Kreis->Verschwinden ();
- }
- //---------------------------------------------------------------------------
- void __fastcall TForm1::FormCreate(TObject *Sender)
- {
- Kreis = new TKreis (30, 30, 150);
- }
- //---------------------------------------------------------------------------
-