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TCustomForm.Show Method

Shows the form.

Pascal
procedure Show;
C++
__fastcall Show();

Use Show to set the form's Visible property to true and to bring the form to the front of other forms on the screen.  

C++ Examples: 

 

/*
StepBy, CreateForm, Run, Show, Update, Initialize example
This example shows progress of loading forms as an application starts up. The code example is placed in the project source (*.dpr) file. To see project source, select the View | Project Source menu item.  
You will need to set up your project with the following steps before using the code example:
o          Add four additional forms to a default project.
o          Place a TProgressBar on Form5
o          Take the Project|Options|Forms menu option and place Form5 on the available forms list.
o          Change the code of your project (*.dpr) file to look like the example.
*/
#include <vcl\vcl.h>
#include "Unit5.h"
#pragma hdrstop
//---------------------------------------------------------------------------
USEFORM("TAppCreateForm.cpp", Form1);
USERES("Project1.res");
USEFORM("Unit2.cpp", Form2);
USEFORM("Unit3.cpp", Form3);
USEFORM("Unit4.cpp", Form4);
USEFORM("Unit5.cpp", Form5);
//---------------------------------------------------------------------------
WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
{
  try
  {
    Application->Initialize();
    SetApplicationMainFormOnTaskBar(Application, true);
    Application->CreateForm(__classid(TForm5), &Form5);
    Form5->ProgressBar1->Max = 100;
    Form5->Show();   // show a splash screen contain ProgressBar control
    Form5->Update(); // force display of Form5
    Application->CreateForm(__classid(TForm1), &Form1);
    Form5->ProgressBar1->StepBy(25);
    Form5->Label1->Caption =  "Form1 loaded successfully.";
    Form5->Update(); // force display of Form5
    Sleep(3000);
    Application->CreateForm(__classid(TForm2), &Form2);
    Form5->ProgressBar1->StepBy(25);
    Form5->Label1->Caption =  "Form2 loaded successfully.";
    Form5->Update(); // force display of Form5
    Sleep(3000);
    Application->CreateForm(__classid(TForm3), &Form3);
    Form5->ProgressBar1->StepBy(25);
    Form5->Label1->Caption =  "Form3 loaded successfully.";
    Form5->Update(); // force display of Form5
    Sleep(3000);
    Application->CreateForm(__classid(TForm4), &Form4);
    Form5->ProgressBar1->StepBy(25);
    Form5->Label1->Caption =  "Form4 loaded successfully.";
    Form5->Update(); // force display of Form5
    Sleep(3000);
//  delete Form5;
    Application->Run();
  }
  catch (Exception &exception)
  {
    Application->ShowException(&exception);
  }
  return 0;
}

 

Delphi Examples: 

{
This example shows progress of loading forms as an
application starts up. The code example is placed in the
project source (*.dpr) file.  To see project source, select
the View | Project Source menu item.
You will need to set up your project with the following steps
before using the code example:
    Add four additional forms to a default project. 
    Place a TProgressBar on Form5
    Take the Project|Options|Forms menu option and place 
          Form5 on the available forms list.
    Change the code of your project (*.dpr) file to look 
          like the example.
}
begin
  Application.Initialize;
  with TForm5.Create(nil) do
  try
    Application.MainFormOnTaskbar := True;
    ProgressBar1.Max := 100;
    Show;  // show a splash screen contain ProgressBar control
    Update; // force display of Form5
    Application.CreateForm(TForm1, Form1);
    ProgressBar1.StepBy(25);
    Label1.Caption :=  'Form1 loaded successfully.';
    Update; // force display of Form5
    Sleep(3000);
    Application.CreateForm(TForm2, Form2);
    ProgressBar1.StepBy(25);
    Label1.Caption :=  'Form2 loaded successfully.';
    Update; // force display of Form5
    Sleep(3000);
    Application.CreateForm(TForm3, Form3);
    ProgressBar1.StepBy(25);
    Label1.Caption :=  'Form3 loaded successfully.';
    Update; // force display of Form5
    Sleep(3000);
    Application.CreateForm(TForm4, Form4);
    ProgressBar1.StepBy(25);
    Label1.Caption :=  'Form4 loaded successfully.';
    Update; // force display of Form5
    Sleep(3000);
  finally
    Free;
  end;
  Application.Run;

 

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