中了键盘鼠标钩子程序怎么办

如果你不需要屏蔽Ctrl+Alt+Del组合键,可以使用低级键盘钩子(WH_KEYBOARD_LL)与低级鼠标钩子(WH_MOUSE_LL),这两种消息钩子的好处是不需要放在动态链接库中就可以作全局钩子,将键盘消息与鼠标消息截获.

unit uHookKeyAndMouse;
{ 该单元利用WH_KEYBOARD_LL与WH_MOUSE_LL两种类型的钩子分别截获键盘消息与鼠标消息}
{ 由于这里只是需要将消息屏蔽,故只需对钩子函数的返回结果设为1即可. }
{ 提供两个函数StartHookKeyMouse与StopHookKeyMouse两个函数. }

interface

uses
Windows, Messages, SysUtils;

const
WH_KEYBOARD_LL =13;
WH_MOUSE_LL =14;

procedure StartHookKeyMouse;
procedure StopHookKeyMouse;

implementation

var
hhkLowLevelKybd:HHook=0;
hhkLowLevelMouse:HHook=0;

function LowLevelKeyboardProc(nCode:Integer; WParam:WPARAM; LParam:LPARAM):LRESULT; stdcall;
begin
Result:=1;
if nCode<>0 then Result:=CallNextHookEx(0,nCode,WParam,LParam);
end;

function LowLevelMouseProc(nCode:Integer; WParam:WPARAM; LParam:LPARAM):LRESULT; stdcall;
begin
Result:=1;
if nCode<>0 then Result:=CallNextHookEx(0,nCode,WParam,LParam);
end;

procedure StartHookKeyMouse;
begin
if hhkLowLevelKybd = 0 then
begin
hhkLowLevelKybd := SetWindowsHookEx(WH_KEYBOARD_LL, LowLevelKeyboardProc, Hinstance, 0);
end;
if hhkLowLevelMouse = 0 then
begin
hhkLowLevelMouse:=SetWindowsHookEx(WH_MOUSE_LL,LowlevelMouseProc,HInstance,0);
end;
end;

procedure StopHookKeyMouse;
begin
if hhkLowLevelKybd <> 0 then
begin
UnhookWindowsHookEx(hhkLowLevelKybd);
hhkLowLevelKybd:=0;
end;
if hhkLowLevelMouse <> 0 then
begin
UnHookWindowsHookEx(hhkLowLevelMouse);
hhkLowLevelMouse:=0;
end;
end;

initialization
hhkLowLevelKybd:=0;
hhkLowLevelMouse:=0;
finalization
if hhkLowLevelKybd <> 0 then UnhookWindowsHookEx(hhkLowLevelKybd);
if hhkLowLevelMouse <> 0 then UnhookWindowsHookEx(hhkLowLevelMouse);
end.