copymemoryu.pas

DelphiWin32核心API参考光盘内容.是学习书籍中的源码,便于学习.

unit CopyMemoryu;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, Grids;

type
  TForm1 = class(TForm)
    Button1: TButton;
    StringGrid1: TStringGrid;
    StringGrid2: TStringGrid;
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  Info1, Info2: array[0..99] of byte;     // the copy from and copy to buffers

implementation

{$R *.DFM}

procedure TForm1.FormCreate(Sender: TObject);
var
  iLoop: Integer;
begin
  {fill the source buffer with information, and display this in the
   string grid}
  for iLoop := 1 to 100 do
  begin
    Info1[iLoop-1] := iLoop;
    StringGrid1.Cells[iLoop-1, 0] := IntToStr(Info1[iLoop-1]);
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  iLoop: integer;
begin
  {copy the source buffer into the destination buffer}
  CopyMemory(@Info2, @Info1, SizeOf(Info1));

  {display the result in the second string grid}
  for iLoop := 1 to 100 do
    StringGrid2.Cells[iLoop-1, 0] := IntToStr(Info2[iLoop-1]);
end;

end.