whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1541)

Database (90)
Files (137)
Forms (107)
Graphic (114)
IDE (21)
Indy (5)
Internet / LAN (130)
IntraWeb (0)
Math (76)
Misc (126)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (266)
VCL (242)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

35 Visitors Online


 
...patch a process?
Autor: Mileriam
Homepage: http://www.mediaceta.de
[ Print tip ]  

Tip Rating (28):  
     


{....}

var
  
WindowName: Integer;
  ProcessId: Integer;
  ThreadId: Integer;
  buf: PChar;
  HandleWindow: Integer;
  Write: Cardinal;
  
{....}

const
  
WindowTitle = 'a program name';
  Address = $A662D6;
  PokeValue = $4A;
  NumberOfBytes = 2;
  
{....}


procedure TForm1.Button1Click(Sender: TObject);
begin
  
WindowName := FindWindow(nil, WindowTitle);

  if WindowName = 0 then
  begin
    
MessageDlg('Program not running.', mtWarning, [mbOK], 0);
  end;

  ThreadId := GetWindowThreadProcessId(WindowName, @ProcessId);
  HandleWindow := OpenProcess(PROCESS_ALL_ACCESS, False, ProcessId);

  GetMem(buf, 1);
  buf^ := Chr(PokeValue);
  WriteProcessMemory(HandleWindow, ptr(Address), buf, NumberOfBytes, Write);
  FreeMem(buf);
  CloseHandle(HandleWindow);
end;

 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners