一个只有17K的Delphi字符串加密程序源码

2016-02-19 20:48 45 1 收藏

只要你有一台电脑或者手机,都能关注图老师为大家精心推荐的一个只有17K的Delphi字符串加密程序源码,手机电脑控们准备好了吗?一起看过来吧!

【 tulaoshi.com - 编程语言 】

  program Window;

  {
     This is an example of making an application
     without using the Forms unit. Forms.pas is the
     Delphi unit that makes your programs so damn
     huge! Forms.pas has all the code for translating
     the forms you create with Delphi w/components
     into windows. If you ask me, anything that adds
     200k(@%#$!) to your app has got to be some damn
     inefficient code.

     GoRDy gfody@jps.net
     www.jps.net/gfody
  }

  
  uses Windows, Messages;

  {$R *.RES}

  var
  wClass:   TWndClass;  // class struct for main window
  hFont,                // handle of font
  hInst,                // handle of program (hinstance)
  Handle,               // handle of main window
  hEncrypt,             // handle of encrypt button
  hDecrypt,             // handle of decrypt button
  hEdit,                // handle of main edit
  hLabel,               // handle of password label
  hPW:      HWND;       // handle of password edit
  Msg:      TMSG;       // message struct
  dEncrypt,
  dDecrypt: Pointer;    // default button procedures

  (*------------------------------------------------*)

  // This lines everything up
  procedure Resize;
  var
  RCT:TRect;
  begin
    GetWindowRect(Handle,RCT);
    MoveWindow(hPW,230,5,RCT.Right-RCT.Left-245,24,True);
    MoveWindow(hEdit,5,34,RCT.Right-RCT.Left-20,RCT.Bottom-RCT.Top-66,True);
  end;

  (*------------------------------------------------*)

  // This is to cleanup and stop the program
  procedure ShutDown;
  begin
    DeleteObject(hFont);
    UnRegisterClass('Sample Class',hInst);
    ExitProcess(hInst); //end program
  end;

  (*------------------------------------------------*)

  // Decrypts the text in hEdit with the text in hPW
  procedure Decrypt;
  var
  x,i,                // count variables
  sText,sPW: Integer; // size of Text, PW
  Text,PW:   PChar;   // buffer for Text, PW
  begin
    sText:=GetWindowTextLength(hEdit)+1;
    sPW:=GetWindowTextLength(hPW)+1;
    GetMem(Text,sText);
    GetMem(PW,sPW);
    GetWindowText(hEdit,Text,sText);
    GetWindowText(hPW,PW,sPW);
    x:=0; // initialize count
    for i:=0 to sText-2 do
    begin
      Text[i]:=Chr(Ord(Text[i])-Ord(PW[x]));
      Inc(x);
      if x=(sPW-1)then x:=0;
    end;
    SetWindowText(hEdit,Text);
    FreeMem(Text);
    FreeMem(PW);
  end;

  (*------------------------------------------------*)

  // Encrypts the text in hEdit with the text in hPW
  procedure Encrypt;
  var
  x,i,                // count variables
  sText,sPW: Integer; // size of Text, PW
  Text,PW:   PChar;   // buffer for Text, PW
  begin
    sText:=GetWindowTextLength(hEdit)+1;
    sPW:=GetWindowTextLength(hPW)+1;
    GetMem(Text,sText);
    GetMem(PW,sPW);
    GetWindowText(hEdit,Text,sText);
    GetWindowText(hPW,PW,sPW);
    x:=0; // initialize count
    for i:=0 to sText-2 do
    begin
      Text[i]:=Chr(Ord(Text[i])+Ord(PW[x]));
      Inc(x);
      if x=(sPW-1)then x:=0;
    end;
    SetWindowText(hEdit,Text);
    FreeMem(Text);
    FreeMem(PW);
  end;

  (*------------------------------------------------*)

  // This function processes every message sent to the Encrypt Button
  function EncryptProc(hWnd,Msg,wParam,lParam:Longint):Longint; stdcall;
  var
  i: Integer;
  begin
    // Always pass the message to the Default procedure
    Result:=CallWindowProc(dEncrypt,hWnd,Msg,wParam,lParam);

    case Msg of
    // If the user presses TAB we're gunna switch the
    // focus over to the Decrypt button.
    WM_KEYDOWN: if wParam=9 then SetFocus(hDecrypt);
    end;

(本文来源于图老师网站,更多请访问https://www.tulaoshi.com/bianchengyuyan/)

  end;

  (*------------------------------------------------*)

  // This function processes every message sent to the Decrypt Button
  function DecryptProc(hWnd,Msg,wParam,lParam:Longint):Longint; stdcall;
  begin
    // Always pass the message to the Default procedure
    Result:=CallWindowProc(dEncrypt,hWnd,Msg,wParam,lParam);

    case Msg of
    // if the user presses TAB we're gunna switch
    // the focus back to the Encrypt button.
    WM_KEYDOWN: if wParam=9 then SetFocus(hEncrypt);
    end;

  end;

  (*------------------------------------------------*)

  // This function processes every message sent to our Main window
  function WindowProc(hWnd,Msg,wParam,lParam:Longint):Longint; stdcall;
  begin
    // Always pass the message to the Default procedure
    Result:=DefWindowProc(hWnd,Msg,wParam,lParam);

    case Msg of
    WM_SIZE:    Resize;
    // When buttons are clicked the message is passed to
    // the parent window, so we handle it here.
    WM_COMMAND: if      lParam=hEncrypt then Encrypt
                else if lParam=hDecrypt then Decrypt;
    WM_DESTROY: ShutDown;
    end;

  end;

  (*------------------------------------------------*)

  // This is the main program function (WinMain)
  begin

    hInst:=GetModuleHandle(nil); // get the application instance
                                 // hInstance returns zilch

    with wClass do
    begin
      Style:=         CS_PARENTDC;
      hIcon:=         LoadIcon(hInst,'MAINICON');
      lpfnWndProc:=   @WindowProc;
      hInstance:=     hInst;
      hbrBackground:= COLOR_BTNFACE+1;
      lpszClassName:= 'Sample Class';
      hCursor:=       LoadCursor(0,IDC_ARROW);
    end;

    // Once our class is registered we
    // can start making windows with it
    RegisterClass(wClass);

    // Create our main window
    Handle:=CreateWindow(
      'Sample Class',          // Registered Class Name
      'Encrypter - By: GoRDy', // Title of Window
      WS_OVERLAPPEDWINDOW or   // Basic Window Style
      WS_VISIBLE,              // Make it Visible
      10,                      // Left
      10,                      // Top
      400,                     // Width
      300,                     // Height
      0,                       // Parent Window Handle
      0,                       // Handle of Menu
      hInst,                   // Application Instance
      nil);                    // Structure for Creation Data

    // Create the Encrypt button
    hEncrypt:=CreateWindow(
      'Button',
      'Encrypt',
      WS_VISIBLE or WS_CHILD or BS_PUSHLIKE or BS_TEXT,
      5,5,65,24,Handle,0,hInst,nil);

(本文来源于图老师网站,更多请访问https://www.tulaoshi.com/bianchengyuyan/)

    // Create the Decrypt button
    hDecrypt:=CreateWindow(
      'Button',
      'Decrypt',
      WS_VISIBLE or WS_CHILD or BS_PUSHLIKE or BS_TEXT,
      75,5,65,24,Handle,0,hInst,nil);

    // Create the main Edit
    hEdit:=CreateWindowEx(
      WS_EX_CLIENTEDGE, // this EX style is for the beveled edge
      'Edit',
      '',
      WS_VISIBLE or WS_CHILD or ES_LEFT or ES_MULTILINE or ES_WANTRETURN or ES_AUTOVSCROLL or WS_VSCROLL,
      5,34,380,234,Handle,0,hInst,nil);

    // Create the password Edit
    hPW:=CreateWindowEx(
      WS_EX_CLIENTEDGE,
      'Edit',
      '',
      WS_VISIBLE or WS_CHILD or ES_LEFT or ES_AUTOHSCROLL or ES_PASSWORD,
      230,5,155,24,Handle,0,hInst,nil);

    hLabel:=CreateWindow(
      'Static',
      'Password:',
      WS_VISIBLE or WS_CHILD or SS_LEFT,
      160,10,70,20,Handle,0,hInst,nil);

    // Create a custom font for our window otherwise
    // everything would use the system font (blech!)
    hFont:=CreateFont(
      -12,                           // Height
      0,                             // Width
      0,                             // Angle of Rotation
      0,                             // Orientation
      0,                             // Weight
      0,                             // Italic
      0,                             // Underline
      0,                             // Strike Out
      DEFAULT_CHARSET,               // Char Set
      OUT_DEFAULT_PRECIS,            // Precision
      CLIP_DEFAULT_PRECIS,           // Clipping
      DEFAULT_QUALITY,               // Render Quality
      DEFAULT_PITCH or FF_DONTCARE,  // Pitch & Family
      'MS Sans Serif');              // Font Name

    // Set the fonts for all our controls
    SendMessage(hEncrypt,WM_SETFONT,hFont,0);
    SendMessage(hDecrypt,WM_SETFONT,hFont,0);
    SendMessage(hEdit,WM_SETFONT,hFont,0);
    SendMessage(hPW,WM_SETFONT,hFont,0);
    SendMessage(hLabel,WM_SETFONT,hFont,0);

    // Subclass Encrypt Button (assign it a custom WindowProc)
    dEncrypt:=Pointer(GetWindowLong(hEncrypt,GWL_WNDPROC));
    SetWindowLong(hEncrypt,GWL_WNDPROC,Longint(@EncryptProc));

    // Subclass Decrypt Button
    dDecrypt:=Pointer(GetWindowLong(hDecrypt,GWL_WNDPROC));
    SetWindowLong(hDecrypt,GWL_WNDPROC,Longint(@DecryptProc));

    // The reason I don't subclass the Edit controls here
    // is because they don't do anything custom. If I wanted
    // them to Beep or something whenever you typed a "G" then
    // I would subclass them.

    // Focus on first control (otherwise people with no mouse are screwed)
    SetFocus(hEncrypt);

    // Now we loop GetMessage to process each Message in
    // our main window's message list. Every time the main
    // window recieves a message its added to the list, so
    // this loop here will eventually process it.

    while(GetMessage(Msg,Handle,0,0))do
    begin
      TranslateMessage(Msg);             // Translate any keyboard Msg's
      DispatchMessage(Msg);              // Send it to our WindowProc
    end;                                 // for processing.

  end.


来源:https://www.tulaoshi.com/n/20160219/1624560.html

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