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Unit1.cpp
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Unit1.cpp：Code Content
  1. //---------------------------------------------------------------------------
  2. #include <vcl.h>
  3. #pragma hdrstop
  5. #include "Unit1.h"
  6. #include "Unit2.h"
  7. #include "Unit3.h"
  8. //---------------------------------------------------------------------------
  9. #pragma package(smart_init)
  10. #pragma resource "*.dfm"
  11. TForm1 *Form1;
  12. //---------------------------------------------------------------------------
  13. __fastcall TForm1::TForm1(TComponent* Owner)
  14.         : TForm(Owner)
  15. {
  16. }
  17. //---------------------------------------------------------------------------
  19. void __fastcall TForm1::Button1Click(TObject *Sender)
  20. {
  21.   int ii;
  22.   for(ii=0;ii<Application->ComponentCount;ii++)
  23.   {
  24.     ShowMessage(Application->Components[ii]->ClassName());
  25.   }
  26. }
  27. //---------------------------------------------------------------------------
  28. void __fastcall TForm1::Button2Click(TObject *Sender)
  29. {
  30.   TForm *fm;
  31.   AnsiString ass,mss;
  32.   int ii;
  34.   mss=Application->MainForm->Name;
  35.   ii=0;
  36.   for(;;)
  37.   {
  38.     if(ii>=Application->ComponentCount)break;
  39.     ass=Application->Components[ii]->Name;
  40.     if((ass!=mss)&&(ass!=""))
  41.     {
  42.       ShowMessage(ass);
  43.       fm=(TForm *)Application->Components[ii];
  44.       delete fm;
  45.     }
  46.     else
  47.       ii++;
  48.   }
  49. }
  50. //---------------------------------------------------------------------------
  51. void __fastcall TForm1::Button3Click(TObject *Sender)
  52. {
  53.   Form2->Show();
  54. }
  55. //---------------------------------------------------------------------------
  56. void __fastcall TForm1::Button4Click(TObject *Sender)
  57. {
  58.   Form3->Show();
  59. }
  60. //---------------------------------------------------------------------------
  61. void __fastcall TForm1::Button5Click(TObject *Sender)
  62. {
  63.   try
  64.   {
  65.     Form2->Show();
  66.   }
  67.   catch(...)
  68.   {
  69.     Application->CreateForm(__classid(TForm2), &Form2);
  70.     Form2->Show();
  71.   }
  72. }
  73. //---------------------------------------------------------------------------
  74. void __fastcall TForm1::Button6Click(TObject *Sender)
  75. {
  76.   try
  77.   {
  78.     Form3->Show();
  79.   }
  80.   catch(...)
  81.   {
  82.     Application->CreateForm(__classid(TForm3), &Form3);
  83.     Form3->Show();
  84.   }
  85. }
  86. //---------------------------------------------------------------------------