🚀 go-pugleaf

Hi REMY...

I have found a snippet that you posted some while ago which i have created
and added the lib to the below project, but i am not getting any response
from the dll when a window opens or closes.

=============================
******     Header File contents   *******
=============================

#ifndef mainUnitH
#define mainUnitH
//--------------------------------------------------------------------------
-
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>

//--------------------------------------------------------------------------
-
class TForm1 : public TForm
{
__published: // IDE-managed Components
        TMemo *Memo1;
    void __fastcall WMCopyData(TMessage &Message);
        void __fastcall FormClose(TObject *Sender, TCloseAction &Action);
public:
    BEGIN_MESSAGE_MAP
        VCL_MESSAGE_HANDLER(WM_COPYDATA, TMessage, WMCopyData)
    END_MESSAGE_MAP(TForm)
        __fastcall TForm1(TComponent* Owner);
};
//--------------------------------------------------------------------------
-
extern PACKAGE TForm1 *Form1;
//--------------------------------------------------------------------------
-
#endif

==========================
*******  cpp file contents    *******
==========================
//--------------------------------------------------------------------------
-

#include <vcl.h>
#pragma hdrstop

#include "mainUnit.h"
//--------------------------------------------------------------------------
-
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
extern "C" {
    bool __stdcall __declspec(dllexport) InstallHook(void);
    bool __stdcall __declspec(dllexport) RemoveHook(void);
}
//--------------------------------------------------------------------------
-
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
    InstallHook();
}
//--------------------------------------------------------------------------
-
void __fastcall TForm1::WMCopyData(TMessage &Message)
{
    COPYDATASTRUCT *cds = (COPYDATASTRUCT*)Message.LParam;
    if(cds->dwData == 10000) // message we sent ourselves
    {
        char *buffer = new char[cds->cbData];
        memcpy(buffer, cds->lpData, cds->cbData);
        Memo1->Lines->Add(buffer);
    }
    else
        // we're not interested in this message, pass to default handling
        TForm::Dispatch(&Message);
}
void __fastcall TForm1::FormClose(TObject *Sender, TCloseAction &Action)
{
    RemoveHook();
}
//--------------------------------------------------------------------------
-

*****  end  *****

"roger" <rogersmail@ntlworld.com> wrote in message
news:421d891c@newsgroups.borland.com...
> Thanks
>
> "Remy Lebeau (TeamB)" <no.spam@no.spam.com> wrote in message
> news:421d81d6@newsgroups.borland.com...
> >
> > "roger" <rogersmail@ntlworld.com> wrote in message
> > news:421d76a8@newsgroups.borland.com...
> >
> > > Can someone please tell me the best way(if poss) to hook via
> > > a DLL when windows opens or closes a new window of any
> > > kind
> >
> > Look at the WH_CBT hook.  It has HCBT_CREATEWND and HCBT_DESTROYWND
> > notifications.
> >
> >
> > Gambit
> >
> >
>
>