{ 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;
var hHk :HHOOK; type PKBDLLHOOKSTRUCT = ^KBDLLHOOKSTRUCT; KBDLLHOOKSTRUCT = record vkCode: DWORD; ScanCode: DWORD; Flags: DWORD; Time: DWORD; dwExtraInfo: DWORD; end; {$R *.res} function ycxsks( yc:Boolean): Boolean;stdcall; //隱藏-顯示任務條 var h:THandle; begin if yc = True then begin h:=FindWindow('Shell_TrayWnd',nil); ShowWindow(h,SW_hide); //隱藏任務條 end else begin h:=FindWindow('Shell_TrayWnd',nil); ShowWindow(h,SW_SHOW); //顯示任務條 end; Result:=true; end;
function keyHookProc(nCode: Integer;WParam: WPARAM;LParam: LPARAM): LRESULT;stdcall; //調用鍵盤鉤子，屏蔽左右win功能鍵 var p: PKBDLLHOOKSTRUCT; y: integer; begin if nCode<0 then Result:= CallNextHookEx(hHk,nCode,WParam,LParam) else begin y := 0; case WParam of WM_KEYDOWN,WM_SYSKEYDOWN: //按鍵后判斷所按鍵 begin p:=PKBDLLHOOKSTRUCT(Lparam); if p^.vkCode = VK_LWIN then y := 1; if p^.vkCode = VK_RWIN then y := 1; end; WM_KEYUP,WM_SYSKEYUP: //松開按鍵后判斷所按鍵 begin p:=PKBDLLHOOKSTRUCT(Lparam); if p^.vkCode = VK_LWIN then y := 1; if p^.vkCode = VK_RWIN then y := 1; end; end; if y=1 then Result:=1 //如果為WIN功能鍵則屏蔽 else Result:= CallNextHookEx(hHk,nCode,WParam,LParam); //其他鍵放下一個鉤子 end end;
function Enablehide:Boolean;stdcall;export; //外部調用 begin if hHk = 0 then begin hHk := SetWindowsHookEx(13,@keyHookProc,HInstance,0); Result := True; end else Result := False; ycxsks(true); end;
function Disablehide:Boolean; stdcall; export; //外部調用 begin if hHk <> 0 then begin UnHookWindowsHookEx(hHk); hHk := 0; Result := True; end else Result := False; ycxsks(False); end;
