Delphi HOOK例
9795 ワード
本アプリケーションのHook:
次の操作を行います.
HookLib.dll共有メモリ最終版:
unit UFrmMain;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
btnClose: TButton;
btnSetHook: TButton;
btnSizeLongInt: TButton;
procedure btnCloseClick(Sender: TObject);
procedure btnSetHookClick(Sender: TObject);
procedure btnSizeLongIntClick(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
var
hHookKeyboard : HHOOK;
procedure TForm1.btnCloseClick(Sender: TObject);
begin
close;
end;
function MouseHook(code: Integer; wparam: WPARAM; lparam: LPARAM): LRESULT stdcall;
begin
result := 1;
end;
function KeyHook(code: Integer; wparam: WPARAM; lparam: LPARAM): LRESULT stdcall;
begin
if (wparam = vk_f4) and ((lparam and (1 shl 29)) > 0) then
result := 1
else
result := CallNextHookEx(hHookKeyboard, code, wparam, lparam);
end;
procedure TForm1.btnSetHookClick(Sender: TObject);
begin
SetWindowsHookEx(WH_MOUSE,@MouseHook,HInstance,GetCurrentThreadId());
hHookKeyboard := SetWindowsHookEx(WH_KEYBOARD,@KeyHook,HInstance,GetCurrentThreadId());
end;
procedure TForm1.btnSizeLongIntClick(Sender: TObject);
begin
ShowMessageFmt('sizeof longint:%d',[sizeof(longint)]);
end;
end.
//HookLibInterface.pas
unit HookLibInterface;
interface
USES
windows;
{$IFNDEF HookLibInterface}
procedure SetHook(hwnd1:HWND); stdcall;
procedure UnHook(); stdcall;
{$ENDIF}
implementation
{$IFNDEF HookLibInterface}
procedure SetHook(hwnd1:HWND); external 'HookLib.dll' name 'SetHook';
procedure UnHook(); external 'HookLib.dll' name 'UnHook';
{$ENDIF}
end.
//HookLib.dpr
library HookLib;
{ Important note about DLL memory management: ShareMem must be the
first unit in your library's USES clause AND your project's (select
Project-View Source) USES clause if your DLL exports any procedures or
functions that pass strings as parameters or function results. This
applies to all strings passed to and from your DLL--even those that
are nested in records and classes. ShareMem is the interface unit to
the BORLNDMM.DLL shared memory manager, which must be deployed along
with your DLL. To avoid using BORLNDMM.DLL, pass string information
using PChar or ShortString parameters. }
uses
SysUtils,
Classes,
Windows,
Messages,
Dialogs,
HookLibInterface in 'HookLibInterface.pas';
{$R *.res}
var
hMouseHook : HHOOK;
hKeyboardHook : HHOOK;
var
g_hwnd : HWND;
function MouseHookProc(code: Integer; wparam: WPARAM; lparam: LPARAM): LRESULT stdcall;
begin
result := 1;
end;
function KeyboardHookProc (code: Integer; wparam: WPARAM; lparam: LPARAM): LRESULT stdcall;
begin
if vk_f2 = wparam then
begin
PostMessage(g_hwnd,wm_close,0,0);
//UnhookWindowsHookEx(hMouseHook);
UnhookWindowsHookEx(hKeyboardHook);
end;
result := 1;
end;
procedure SetHook(hwnd1 : HWND); stdcall;
begin
g_hwnd := hwnd1;
//hMouseHook := SetWindowsHookEx(WH_MOUSE, MouseHookProc, GetModuleHandle('HookLib.dll'),0);
hKeyboardHook := SetWindowsHookEx(WH_KEYBOARD, KeyboardHookProc, GetModuleHandle('HookLib.dll'),0);
showmessage(' !');
end;
procedure UnHook(); stdcall;
begin
//UnhookWindowsHookEx(hMouseHook);
UnhookWindowsHookEx(hKeyboardHook);
showmessage(' !');
end;
exports
SetHook,
Unhook;
end.
次の操作を行います.
unit UMain;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TFrmMain = class(TForm)
btnClose: TButton;
btnHookMouse: TButton;
btnUnHookMouse: TButton;
procedure btnCloseClick(Sender: TObject);
procedure btnHookMouseClick(Sender: TObject);
procedure btnUnHookMouseClick(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
FrmMain: TFrmMain;
implementation
uses
HookLibInterface;
{$R *.dfm}
procedure TFrmMain.btnCloseClick(Sender: TObject);
begin
close;
end;
procedure TFrmMain.btnHookMouseClick(Sender: TObject);
begin
SetHook(application.Handle);
end;
procedure TFrmMain.btnUnHookMouseClick(Sender: TObject);
begin
UnHook;
end;
procedure TFrmMain.FormCreate(Sender: TObject);
begin
SetWindowPos(self.Handle,HWND_TOPMOST,0,0,screen.Width,Screen.Height,SWP_SHOWWINDOW );
end;
end.
HookLib.dll共有メモリ最終版:
//HookLib.dpr
library HookLib;
{ Important note about DLL memory management: ShareMem must be the
first unit in your library's USES clause AND your project's (select
Project-View Source) USES clause if your DLL exports any procedures or
functions that pass strings as parameters or function results. This
applies to all strings passed to and from your DLL--even those that
are nested in records and classes. ShareMem is the interface unit to
the BORLNDMM.DLL shared memory manager, which must be deployed along
with your DLL. To avoid using BORLNDMM.DLL, pass string information
using PChar or ShortString parameters. }
uses
SysUtils,
Classes,
Windows,
Messages,
Dialogs,
HookLibInterface in 'HookLibInterface.pas';
{$R *.res}
const
cMMFileName: PChar = 'SharedMapData';
var
hMouseHook : HHOOK;
hKeyboardHook : HHOOK;
type
TGlobalDLLData = HWND;
PGlobalDLLData = ^HWND;
var
GlobalData : PGlobalDLLData;
MapHandle : THandle;
{
var
g_hwnd : HWND;
}
function MouseHookProc(code: Integer; wparam: WPARAM; lparam: LPARAM): LRESULT stdcall;
begin
result := 1;
end;
function KeyboardHookProc (code: Integer; wparam: WPARAM; lparam: LPARAM): LRESULT stdcall;
begin
if vk_f2 = wparam then
begin
messagebeep(0);
PostMessage(GlobalData^,wm_close,0,0);
//UnhookWindowsHookEx(hMouseHook);
UnhookWindowsHookEx(hKeyboardHook);
end;
result := 1;
end;
procedure SetHook(aHwnd : HWND); stdcall;
begin
//g_hwnd := aHwnd;
GlobalData^ := aHwnd;
//hMouseHook := SetWindowsHookEx(WH_MOUSE, MouseHookProc, GetModuleHandle('HookLib.dll'),0);
hKeyboardHook := SetWindowsHookEx(WH_KEYBOARD, KeyboardHookProc, GetModuleHandle('HookLib.dll'),0);
showmessage(' !');
end;
procedure UnHook(); stdcall;
begin
//UnhookWindowsHookEx(hMouseHook);
UnhookWindowsHookEx(hKeyboardHook);
showmessage(' !');
end;
exports
SetHook,
Unhook;
procedure OpenSharedData;
var
Size: Integer;
begin
{ Get the size of the data to be mapped. }
Size := SizeOf(TGlobalDLLData);
{ Now get a memory-mapped file object. Note the first parameter passes
the value $FFFFFFFF or DWord(-1) so that space is allocated from the system's
paging file. This requires that a name for the memory-mapped
object get passed as the last parameter. }
MapHandle := CreateFileMapping(DWord(-1), nil, PAGE_READWRITE, 0, Size, cMMFileName);
if MapHandle = 0 then
RaiseLastWin32Error;
{ Now map the data to the calling process's address space and get a
pointer to the beginning of this address }
GlobalData := MapViewOfFile(MapHandle, FILE_MAP_ALL_ACCESS, 0, 0, Size);
if GlobalData = nil then
begin
CloseHandle(MapHandle);
RaiseLastWin32Error;
end;
end;
procedure CloseSharedData;
{ This procedure un-maps the memory-mapped file and releases the memory-mapped
file handle }
begin
UnmapViewOfFile(GlobalData);
CloseHandle(MapHandle);
end;
procedure DLLEntryPoint(dwReason: DWord);
begin
case dwReason of
DLL_PROCESS_ATTACH: OpenSharedData;
DLL_PROCESS_DETACH: CloseSharedData;
end;
end;
begin
{ First, assign the procedure to the DLLProc variable }
DllProc := @DLLEntryPoint;
{ Now invoke the procedure to reflect that the DLL is attaching
to the process }
DLLEntryPoint(DLL_PROCESS_ATTACH);
end.