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7.4

4k point conversion help

Asked by alloc in Delphi Programming

Tags: delphi

hi I found some c++ code online and am trying to convert it to work in delphi. its been 3 yrs since I last programmed c++ and I have less experience in delphi. I've done most if not all of the foot work already and just it to compile properly. If someone can help me properly set up the Begin..End..Else blocks in delphi and get the DLL functioning I will award them 4000 points. I'll grade an A and then open another empty question and award you another 2000 points. Since this question is worth 500 pts (4 * 500 =  2000) *2 = 4000 pts. It took me about an hour with the help of a friend and here's what I've come up with. My conditional blocks are off (it seems) and I believe thats the reason it will not function properly due to a halt in code execution.

//------------------------------------------------------------------------------------------------------------------
{ The DLL Code }

library dDLL;

uses
SysUtils,
windows, psapi;

  var
    x: integer = 0;
  stream: integer;
   count: integer;
 bHooked: longbool = false;
     CBT: hHook = 0;
    CBT1: hHook = 0;
   HINSTANCE: hInst;
   szModName: array[0..1023]of char;
  szModName1: array[0..1023]of char;
  nul: array[0..1023]of char;
  win: array[0..MAX_PATH]of char;

   function StrStr(source, target: Pchar):integer;
var
  p: PChar;
  s1, s2: array[0..$FF]of Char;
begin
  StrPCopy(s1, source);
  StrPCopy(s2, target);
  p := StrPos(s1, s2);
  StrStr := (p - s1) +1;
end;

  function GetWinDir: Pchar;
    begin
    zeromemory(@win, sizeof(win));
    GetWindowsDirectory(win, MAX_PATH);
    result := StrCat(@win, '\explorer.exe');
    end;

      function CBTProc(ncode: integer; wPARAM: WPARAM; lPARAM: LPARAM):LongInt;stdcall
   var
    hProc: Thandle;
    hMods: Array [0..1023]of HMODULE;
    n,
    dwProcessId,
    lpExitCode,
    dwSize,
    dwType,
    dwDisp: DWORD;
    Regentry: HKEY;
    host1: PChar;
    host: array[0..1023]of char;
    rezerva: Pchar;
    begin
if (nCode = HCBT_ACTIVATE)
      or
   (nCode = HCBT_SYSCOMMAND)
      or
   (nCode = HCBT_QS)
      or
   (nCode = HCBT_CREATEWND) then
        begin
    GetWindowThreadProcessId(HWND(wParam), @dwProcessID);
    hProc := OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwProcessId);
   if EnumProcessModules(hproc, @hMods, sizeof(hMods), n) then
   begin
if ( n > 0) then
GetModuleFileNameEx(hProc, hMods[0], szModName, sizeof(szModName));
end;
GetExitCodeProcess(hProc, lpExitCode);
if not (host1 = strRscan(szModName,'\')) then
strcopy(host, szModName)
else
strcopy(host,host1 +1);
RegOpenKeyEx(HKEY_LOCAL_MACHINE, 'SOFTWARE\Gapula\PEND', 0, KEY_QUERY_VALUE, Regentry);
RegQueryValueEx(Regentry,host, nil, @dwType, Pbyte(rezerva), @dwSize);
if RegQueryValueEx(Regentry,host , nil, @dwType, Pbyte(rezerva), @dwSize) <> ERROR_SUCCESS
then
begin
RegOpenKeyEx(HKEY_LOCAL_MACHINE, 'SOFTWARE\Gapula\OK', 0, KEY_QUERY_VALUE, Regentry);
RegQueryValueEx(Regentry,host , nil, @dwType, Pbyte(rezerva), @dwSize);
if RegQueryValueEx(Regentry,host ,nil, @dwType, Pbyte(rezerva), @dwSize) <> ERROR_SUCCESS
then
begin
RegCloseKey(Regentry);
RegOpenKeyEx(HKEY_LOCAL_MACHINE, 'SOFTWARE\Gapula\RESTR', 0, KEY_QUERY_VALUE or KEY_ALL_ACCESS, Regentry);
RegQueryValueEx(Regentry,host , nil, @dwType, Pbyte(rezerva), @dwSize);
end;
if RegQueryValueEx(Regentry,host , nil, @dwType, Pbyte(rezerva), @dwSize) <> ERROR_SUCCESS
then
RegCreateKeyEx(HKEY_LOCAL_MACHINE, 'SOFTWARE\Gapula\PEND', 0, '', REG_OPTION_NON_VOLATILE,KEY_WRITE, nil, Regentry, @dwDisp);
RegSetValueEx(Regentry, host, 0, REG_SZ, @szModName, strlen(szModName) +1);
RegCloseKey(Regentry);
strcat(szModName, 'is trying to start, do you allow that ?'+#13+
'Please recall that if you say yes this action will be happening every time this program starts'+#13+
'This goes for NO as well so be careful what you wish for');
if (MessageBox(0,szModName,'Gabby',MB_ICONQUESTION or
                                   MB_SYSTEMMODAL or
                                   MB_APPLMODAL or
                                   MB_TASKMODAL or
                                   MB_SETFOREGROUND or
                                   MB_TOPMOST or
                                   MB_YESNO) = IDNO)
then
begin
RegCreateKeyEx(HKEY_LOCAL_MACHINE, 'SOFTWARE\Gapula\RESTR', 0, '', REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, Regentry,      @dwDisp);
RegSetValueEx(Regentry, host, 0, REG_SZ, @szModName, strlen(szModName)+1);
RegCloseKey(Regentry);
TerminateProcess(hProc, lpExitCode);
end
else
begin
RegCreateKeyEx(HKEY_LOCAL_MACHINE, 'SOFTWARE\Gapula\OK', 0, '', REG_OPTION_NON_VOLATILE,KEY_WRITE, 0, Regentry,      @dwDisp);
RegSetValueEx(Regentry, host, 0, REG_SZ, @szModName, strlen(szModName) +1);
RegCloseKey(Regentry);
result := 0;
end;
end
else
TerminateProcess(hProc, lpExitCode);
result := 0;
 end
else
begin
RegOpenKeyEx(HKEY_LOCAL_MACHINE, 'SOFTWARE\Gapula\\RESTR', 0, KEY_QUERY_VALUE or KEY_ALL_ACCESS, Regentry);
RegQueryValueEx(Regentry,host , 0, @dwType, Pbyte(rezerva), @dwSize);
if RegQueryValueEx(Regentry,host , 0, @dwType, Pbyte(rezerva), @dwSize) <> ERROR_SUCCESS then
result := 0
  else
TerminateProcess(hProc, lpExitCode);
end;
result := CallNextHookEx(CBT,nCode,wParam,lParam);
end;

     {### BEGIN COMMENTS:

       function CBTProc1(nCode: integer; wParam: WPARAM; lParam: LPARAM):LongInt;stdcall
    var
          hProc: Thandle;
      hMods: array[0..1023]of HMODULE; // not sure here
      n, dwProcessId, lpExitCode, dwSize, dwType: DWORD;
      Regentry: HKEY;
      host1: Pchar;
      host: array[0..1023]of char;
                dir: array[0..1023]of char;
      rezdir: Pchar; // not sure here
    begin
      if (nCode = HCBT_CREATEWND) then
      begin
GetWindowThreadProcessId(HWND(wParam), dwProcessId);
hProc := OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwProcessId);
if EnumProcessModules(hproc, @hMods, sizeof(hMods), n) then
if (n > 0) then begin
GetModuleFileNameEx(hProc, hMods[0], szModName1, sizeof(szModName1));
GetExitCodeProcess(hProc,lpExitCode);
if not (host1 = strRscan(szModName1,'\')) then
strcopy(host, szModName1)
end
  else
strcopy(host,host1 +1);
RegOpenKeyEx(HKEY_LOCAL_MACHINE, 'SOFTWARE\Gapula', 0, KEY_QUERY_VALUE, Regentry);
RegQueryValueEx(Regentry, dir, 0, @dwType, Pbyte(rezdir), @dwSize);
RegQueryValueEx(Regentry, dir, 0, @dwType, Pbyte(rezdir), @dwSize);
RegCloseKey(Regentry);
if (strstr(szModName1, rezdir) <> 0) then
if (strcomp(rezdir, nul) <> 0) then
DestroyWindow(HWND(wParam));
end;
result := CallNextHookEx(CBT1, nCode, wParam, lParam);
end;
       ### END COMMENTS }

Function DllMain(hinstDLL: hInst; fdwReason: DWORD; lpvReserved: Pointer):longbool; stdcall;
      begin
         case fdwReason of
         DLL_PROCESS_ATTACH:
         begin
         hInstance := hinstDLL;
         count := 0;
         end;
         DLL_THREAD_ATTACH:
         begin
         exit;
         end;
         DLL_PROCESS_DETACH:
         begin
         exit;
         end;
         end;
           result := true;
         end;

         procedure BagaHooku; {exported}
         begin
        if not bHooked then
         begin
        CBT := SetWindowsHookEx(WH_CBT, @CBTProc, hInstance, 0);
       //CBT1 := SetWindowsHookEx(WH_CBT, @CBTProc1, hInstance, 0);
        bHooked := true;
         end;
         end;

      procedure ScoateHooku; {exported}
      begin
      if bHooked then
      begin
      UnhookWindowsHookEx(CBT);
    //UnhookWindowsHookEx(CBT1);
      bHooked := false;
      end;
      end;

    exports
    BagaHooku,
    ScoateHooku;

begin
DLLPROC := @DllMain //Entry Point
end.

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

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

{ The Program Code }
{ ... }

implementation

procedure BagaHooku;external 'dDLL.dll';
procedure ScoateHooku;external 'dDLL.dll';

procedure TForm1.FormCreate(Sender: TObject);
begin
BagaHooku;
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
ScoateHooku;
end;

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

 The original code is here from thecodeproject in c++ located here: http://www.codeproject.com/threads/A_not_so_simple_firewall.asp

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

#include "a.h"
#include <stdio.h>
#include <stdlib.h>
#include <psapi.h>
#include <string.h>
#include <winreg.h>
#include <process.h>
#include <windef.h>
#include <windows.h>
#include <io.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>

      int x=0;

      int stream;

static      BOOL      bHooked = FALSE;

static      HHOOK      CBT=0,CBT1=0;
static HINSTANCE hInst;
static int count;
char szModName[1024];
char szModName1[1024];
char nul[1024];
char win[1024];

void GetWinDir(void);

LRESULT CALLBACK CBTProc(int code, WPARAM wParam, LPARAM lParam);
//LRESULT CALLBACK CBTProc1(int code, WPARAM wParam, LPARAM lParam);


BOOL      WINAPI      DllMain(HINSTANCE hinstDLL,DWORD fdwReason, LPVOID lpvReserved)
{
      switch (fdwReason)
      {
            case DLL_PROCESS_ATTACH:
                  hInst=hinstDLL;
             
                  count=0;
                  break;
            case DLL_THREAD_ATTACH:
                  break;
            case DLL_THREAD_DETACH:
                  break;
            case DLL_PROCESS_DETACH:
                  break;
            default:
                  break;
      }

      return TRUE;
}

DLL_EXPORT      void BagaHooku(void)
{
      if(!bHooked)
      {
      CBT = SetWindowsHookEx(WH_CBT, (HOOKPROC)CBTProc, hInst, (DWORD)NULL);  
///      CBT1 = SetWindowsHookEx(WH_CBT, (HOOKPROC)CBTProc1, hInst, (DWORD)NULL);  
      bHooked = TRUE;      
      }
}

DLL_EXPORT      void ScoateHooku(void)
{
      if(bHooked)
      {
            UnhookWindowsHookEx(CBT);
//            UnhookWindowsHookEx(CBT1);

      }
}

LRESULT CALLBACK CBTProc(int nCode,WPARAM wParam,LPARAM lParam)

{
      if ((nCode==HCBT_ACTIVATE)||(nCode==HCBT_SYSCOMMAND)||(nCode==HCBT_QS)||(nCode==HCBT_CREATEWND))
      {

                  HANDLE hProc;
                  HMODULE hMods[1024];
                  DWORD n;
                  DWORD dwProcessId ;
                  DWORD lpExitCode;
                  DWORD dwSize,dwType,dwDisp;
                  HKEY Regentry;
                  char *host1;
                  char host[1024];
                  char rezerva[1024];



GetWindowThreadProcessId((HWND)wParam, &dwProcessId);
hProc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, (DWORD)dwProcessId);

if(EnumProcessModules(hProc, hMods, sizeof(hMods), &n))
{
if (n>0)
GetModuleFileNameEx(hProc, hMods[0], szModName, sizeof(szModName));
}

GetExitCodeProcess(hProc,&lpExitCode);

if(!(host1=strrchr(szModName,'\\')))
                  strcpy(host,szModName);
            else
strcpy(host,host1+1);      

RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Gapula\\PEND", 0, KEY_QUERY_VALUE, &Regentry);
RegQueryValueEx(Regentry,host , NULL, &dwType, (unsigned char*)&rezerva, &dwSize);
if(RegQueryValueEx(Regentry,host , NULL, &dwType, (unsigned char*)&rezerva, &dwSize)!=ERROR_SUCCESS)
{
RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Gapula\\OK", 0, KEY_QUERY_VALUE, &Regentry);
RegQueryValueEx(Regentry,host , NULL, &dwType, (unsigned char*)&rezerva, &dwSize);

if(RegQueryValueEx(Regentry,host , NULL, &dwType, (unsigned char*)&rezerva, &dwSize)!=ERROR_SUCCESS)
{
RegCloseKey(Regentry);
RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Gapula\\RESTR", 0, KEY_QUERY_VALUE|KEY_ALL_ACCESS, &Regentry);
RegQueryValueEx(Regentry,host , NULL, &dwType, (unsigned char*)&rezerva, &dwSize);

if(RegQueryValueEx(Regentry,host , NULL, &dwType, (unsigned char*)&rezerva, &dwSize)!=ERROR_SUCCESS)
{
RegCreateKeyEx(      HKEY_LOCAL_MACHINE, "SOFTWARE\\Gapula\\PEND", 0, "", REG_OPTION_NON_VOLATILE,KEY_WRITE, NULL, &Regentry,      &dwDisp);
RegSetValueEx(Regentry, host, 0, REG_SZ,(unsigned char *)szModName, strlen(szModName)+1);
RegCloseKey(Regentry);
strcat(szModName," is trying to start, do you allow that ?\n Please recall that if you say yes this action will be happening every time this program starts\nThis goes for NO as well so be careful what you wish for");

if (MessageBox(NULL,szModName,"Gabby",MB_ICONQUESTION|MB_SYSTEMMODAL|MB_APPLMODAL|MB_TASKMODAL|MB_SETFOREGROUND|MB_TOPMOST|MB_YESNO)==IDNO)
{
RegCreateKeyEx(      HKEY_LOCAL_MACHINE, "SOFTWARE\\Gapula\\RESTR", 0, "", REG_OPTION_NON_VOLATILE,KEY_WRITE, NULL, &Regentry,      &dwDisp);
RegSetValueEx(Regentry, host, 0, REG_SZ,(unsigned char *)szModName, strlen(szModName)+1);
RegCloseKey(Regentry);
TerminateProcess(hProc, (UINT)lpExitCode);
}
else
{
RegCreateKeyEx(      HKEY_LOCAL_MACHINE, "SOFTWARE\\Gapula\\OK", 0, "", REG_OPTION_NON_VOLATILE,KEY_WRITE, NULL, &Regentry,      &dwDisp);
RegSetValueEx(Regentry, host, 0, REG_SZ,(unsigned char *)szModName, strlen(szModName)+1);
RegCloseKey(Regentry);
      return 0;
}

}

else
TerminateProcess(hProc, (UINT)lpExitCode);

}

else

{
      return 0;
}

}

else
{
RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Gapula\\RESTR", 0, KEY_QUERY_VALUE|KEY_ALL_ACCESS, &Regentry);
RegQueryValueEx(Regentry,host , NULL, &dwType, (unsigned char*)&rezerva, &dwSize);

if(RegQueryValueEx(Regentry,host , NULL, &dwType, (unsigned char*)&rezerva, &dwSize)!=ERROR_SUCCESS)

      return 0;

else
TerminateProcess(hProc, (UINT)lpExitCode);
}
  }
      
return CallNextHookEx(CBT,nCode,wParam,lParam);
}


void GetWinDir(void)
{
ZeroMemory(win,sizeof(win));
GetWindowsDirectory(win,sizeof(win));
strcat(win,"explorer.exe");
}

/*
LRESULT CALLBACK CBTProc1(int nCode,WPARAM wParam,LPARAM lParam)

{
      if (nCode=HCBT_CREATEWND)
      {

                  HANDLE hProc;
                  HMODULE hMods[1024];
                  DWORD n;
                  DWORD dwProcessId ;
                  DWORD lpExitCode;
                  DWORD dwSize,dwType;
                  HKEY Regentry;
                  char *host1;
                  char host[1024];
            char dir[1024];
                  char rezdir[1024];



GetWindowThreadProcessId((HWND)wParam, &dwProcessId);
hProc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, (DWORD)dwProcessId);

if(EnumProcessModules(hProc, hMods, sizeof(hMods), &n))
{
if (n>0)
GetModuleFileNameEx(hProc, hMods[0], szModName1, sizeof(szModName1));
}

GetCurrentDirectory(sizeof(dir),dir);

GetExitCodeProcess(hProc,&lpExitCode);

if(!(host1=strrchr(szModName1,'\\')))
                  strcpy(host,szModName1);
            else
strcpy(host,host1+1);      


RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\\Gapula", 0, KEY_QUERY_VALUE, &Regentry);
RegQueryValueEx(Regentry,dir , NULL, &dwType, (unsigned char*)&rezdir, &dwSize);
RegQueryValueEx(Regentry,dir , NULL, &dwType, (unsigned char*)&rezdir, &dwSize);
RegCloseKey(Regentry);


if (strstr(szModName1,rezdir)!=NULL)
if (strcmp(rezdir,nul)!=0)
DestroyWindow((HWND)wParam);

      }

return CallNextHookEx(CBT1,nCode,wParam,lParam);
}
*/

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

alloc
[+][-]01/09/05 11:12 AM, ID: 12997941Accepted Solution

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Zone: Delphi Programming
Tags: delphi
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Solution Provided By: rllibby
Participating Experts: 4
Solution Grade: A
 
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[+][-]01/09/05 08:07 AM, ID: 12997105Expert Comment

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

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