//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "ProcessMessages.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
	: TForm(Owner)
{
}
//---------------------------------------------------------------------------
// BeginExample: ProcessMessages
// Method: Forms.TApplication.ProcessMessages

// BeginCode
/*
This example uses two buttons that are long enough to 
accommodate lengthy captions on a form. When the user clicks
the button with the caption Ignore Messages, the code begins
to generate a long series of random numbers. If the user 
tries to resize the form while the handler is running, 
nothing happens until the handler is finished. When the user
clicks the button with the caption Process Messages, more 
random numbers are generated, but the application can still 
respond to a series of events, such as resizing the form
and printing text.
Note: How quickly these event handlers run depends on the 
microprocessor of your computer. A message appears on the 
form informing you when the handler has finished executing.
*/

int magicnumber = 20;

void __fastcall TForm1::FormCreate(TObject* Sender)
{
  Button1->Caption = "Ignore Messages";
  Button2->Caption = "Handle Message";
}

void __fastcall TForm1::Button1Click(TObject* Sender)
{
  int x, y;
  Canvas->TextOut(10, 10, "The Button1Click handler has started");
  Application->ProcessMessages(); // Just to get out the
  Sleep(100);
  for (int i = 0; i < magicnumber; i++)
 {
    Randomize();
	for (int j = 0; j < magicnumber; j++)
	{
	  Sleep(10);
	  y = random(j);
	}
	x = random(i);
  }
  Canvas->TextOut(10, 10, "The Button1Click handler is finished   ");
}

void __fastcall TForm1::Button2Click(TObject *Sender)
{
  int x, y;
  Canvas->TextOut(10, 10, "The Button2Click handler has started");
  for (int i = 0; i < magicnumber; i++)
  {
    Randomize();
	for (int j = 0; j < magicnumber; j++)
    {
      y = random(j);
	  Sleep(10);
	  Application->ProcessMessages();
	}
    x = random(i);
  }
  Canvas->TextOut(10, 10, "The Button2Click handler is finished   ");
}
// EndCode
// EndExample: ProcessMessages
//---------------------------------------------------------------------------
