unit1.cpp

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//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
#include "Unit2.h"
#include "Unit3.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
  int ii;
  for(ii=0;ii<Application->ComponentCount;ii++)
  {
    ShowMessage(Application->Components[ii]->ClassName());
  }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
  TForm *fm;
  AnsiString ass,mss;
  int ii;

  mss=Application->MainForm->Name;
  ii=0;
  for(;;)
  {
    if(ii>=Application->ComponentCount)break;
    ass=Application->Components[ii]->Name;
    if((ass!=mss)&&(ass!=""))
    {
      ShowMessage(ass);
      fm=(TForm *)Application->Components[ii];
      delete fm;
    }
    else
      ii++;
  }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button3Click(TObject *Sender)
{
  Form2->Show();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button4Click(TObject *Sender)
{
  Form3->Show();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button5Click(TObject *Sender)
{
  try
  {
    Form2->Show();
  }
  catch(...)
  {
    Application->CreateForm(__classid(TForm2), &Form2);
    Form2->Show();
  }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button6Click(TObject *Sender)
{
  try
  {
    Form3->Show();
  }
  catch(...)
  {
    Application->CreateForm(__classid(TForm3), &Form3);
    Form3->Show();
  }
}
//---------------------------------------------------------------------------