| Код |
unit sndkey32;
interface
Uses SysUtils, Windows, Messages;
function SendKeys(SendKeysString : PChar; Wait : Boolean) : Boolean;
function AppActivate(WindowName : PChar) : boolean;
{Buffer for working with PChar's}
const
WorkBufLen = 40;
var
WorkBuf : array[0..WorkBufLen] of Char;
implementation
type
THKeys = array[0..pred(MaxLongInt)] of byte;
var
AllocationSize : integer;
(*
Converts a string of characters and key names to keyboard events and
passes them to Windows.
Example syntax:
SendKeys('abc123{left}{left}{left}def{end}456{left 6}ghi{end}789', True);
*)
function SendKeys(SendKeysString : PChar; Wait : Boolean) : Boolean;
type
WBytes = array[0..pred(SizeOf(Word))] of Byte;
TSendKey = record
Name : ShortString;
VKey : Byte;
end;
const
{Array of keys that SendKeys recognizes.
if you add to this list, you must be sure to keep it sorted alphabetically
by Name because a binary search routine is used to scan it.}
MaxSendKeyRecs = 41;
SendKeyRecs : array[1..MaxSendKeyRecs] of TSendKey =
(
(Name:'BKSP'; VKey:VK_BACK),
(Name:'BS'; VKey:VK_BACK),
(Name:'BACKSPACE'; VKey:VK_BACK),
(Name:'BREAK'; VKey:VK_CANCEL),
(Name:'CAPSLOCK'; VKey:VK_CAPITAL),
(Name:'CLEAR'; VKey:VK_CLEAR),
(Name:'DEL'; VKey:VK_DELETE),
(Name:'DELETE'; VKey:VK_DELETE),
(Name:'DOWN'; VKey:VK_DOWN),
(Name:'END'; VKey:VK_END),
(Name:'ENTER'; VKey:VK_RETURN),
(Name:'ESC'; VKey:VK_ESCAPE),
(Name:'ESCAPE'; VKey:VK_ESCAPE),
(Name:'F1'; VKey:VK_F1),
(Name:'F10'; VKey:VK_F10),
(Name:'F11'; VKey:VK_F11),
(Name:'F12'; VKey:VK_F12),
(Name:'F13'; VKey:VK_F13),
(Name:'F14'; VKey:VK_F14),
(Name:'F15'; VKey:VK_F15),
(Name:'F16'; VKey:VK_F16),
(Name:'F2'; VKey:VK_F2),
(Name:'F3'; VKey:VK_F3),
(Name:'F4'; VKey:VK_F4),
(Name:'F5'; VKey:VK_F5),
(Name:'F6'; VKey:VK_F6),
(Name:'F7'; VKey:VK_F7),
(Name:'F8'; VKey:VK_F8),
(Name:'F9'; VKey:VK_F9),
(Name:'HELP'; VKey:VK_HELP),
(Name:'HOME'; VKey:VK_HOME),
(Name:'INS'; VKey:VK_INSERT),
(Name:'LEFT'; VKey:VK_LEFT),
(Name:'NUMLOCK'; VKey:VK_NUMLOCK),
(Name:'PGDN'; VKey:VK_NEXT),
(Name:'PGUP'; VKey:VK_PRIOR),
(Name:'PRTSC'; VKey:VK_PRINT),
(Name:'RIGHT'; VKey:VK_RIGHT),
(Name:'SCROLLLOCK'; VKey:VK_SCROLL),
(Name:'TAB'; VKey:VK_TAB),
(Name:'UP'; VKey:VK_UP)
);
{Extra VK constants missing from Delphi's Windows API interface}
VK_NULL=0;
VK_SemiColon=186;
VK_Equal=187;
VK_Comma=188;
VK_Minus=189;
VK_Period=190;
VK_Slash=191;
VK_BackQuote=192;
VK_LeftBracket=219;
VK_BackSlash=220;
VK_RightBracket=221;
VK_Quote=222;
VK_Last=VK_Quote;
ExtendedVKeys : set of byte =
[VK_Up,
VK_Down,
VK_Left,
VK_Right,
VK_Home,
VK_End,
VK_Prior, {PgUp}
VK_Next, {PgDn}
VK_Insert,
VK_Delete];
const
INVALIDKEY = $FFFF;
VKKEYSCANSHIFTON = $01;
VKKEYSCANCTRLON = $02;
VKKEYSCANALTON = $04;
UNITNAME = 'SendKeys';
var
UsingParens, ShiftDown, ControlDown, AltDown, FoundClose : Boolean;
PosSpace : Byte;
I, L : Integer;
NumTimes, MKey : Word;
KeyString : String[20];
procedure DisplayMessage(Message : PChar);
begin
MessageBox(0,Message,UNITNAME,0);
end;
function BitSet(BitTable, BitMask : Byte) : Boolean;
begin
Result:=ByteBool(BitTable and BitMask);
end;
procedure SetBit(var BitTable : Byte; BitMask : Byte);
begin
BitTable:=BitTable or Bitmask;
end;
procedure KeyboardEvent(VKey, ScanCode : Byte; Flags : Longint);
var
KeyboardMsg : TMsg;
begin
keybd_event(VKey, ScanCode, Flags,0);
if (Wait) then While (PeekMessage(KeyboardMsg,0,WM_KEYFIRST, WM_KEYLAST, PM_REMOVE)) do begin
TranslateMessage(KeyboardMsg);
DispatchMessage(KeyboardMsg);
end;
end;
procedure SendKeyDown(VKey: Byte; NumTimes : Word; GenUpMsg : Boolean);
var
Cnt : Word;
ScanCode : Byte;
NumState : Boolean;
KeyBoardState : TKeyboardState;
begin
if (VKey=VK_NUMLOCK) then begin
NumState:=ByteBool(GetKeyState(VK_NUMLOCK) and 1);
GetKeyBoardState(KeyBoardState);
if NumState then KeyBoardState[VK_NUMLOCK]:=(KeyBoardState[VK_NUMLOCK] and not 1)
else KeyBoardState[VK_NUMLOCK]:=(KeyBoardState[VK_NUMLOCK] or 1);
SetKeyBoardState(KeyBoardState);
exit;
end;
ScanCode:=Lo(MapVirtualKey(VKey,0));
For Cnt:=1 to NumTimes do
if (VKey in ExtendedVKeys)then begin
KeyboardEvent(VKey, ScanCode, KEYEVENTF_EXTENDEDKEY);
if (GenUpMsg) then
KeyboardEvent(VKey, ScanCode, KEYEVENTF_EXTENDEDKEY or KEYEVENTF_KEYUP)
end else begin
KeyboardEvent(VKey, ScanCode, 0);
if (GenUpMsg) then KeyboardEvent(VKey, ScanCode, KEYEVENTF_KEYUP);
end;
end;
procedure SendKeyUp(VKey: Byte);
var
ScanCode : Byte;
begin
ScanCode:=Lo(MapVirtualKey(VKey,0));
if (VKey in ExtendedVKeys)then
KeyboardEvent(VKey, ScanCode, KEYEVENTF_EXTENDEDKEY and KEYEVENTF_KEYUP)
else KeyboardEvent(VKey, ScanCode, KEYEVENTF_KEYUP);
end;
procedure SendKey(MKey: Word; NumTimes : Word; GenDownMsg : Boolean);
begin
if (BitSet(Hi(MKey),VKKEYSCANSHIFTON)) then SendKeyDown(VK_SHIFT,1,False);
if (BitSet(Hi(MKey),VKKEYSCANCTRLON)) then SendKeyDown(VK_CONTROL,1,False);
if (BitSet(Hi(MKey),VKKEYSCANALTON)) then SendKeyDown(VK_MENU,1,False);
SendKeyDown(Lo(MKey), NumTimes, GenDownMsg);
if (BitSet(Hi(MKey),VKKEYSCANSHIFTON)) then SendKeyUp(VK_SHIFT);
if (BitSet(Hi(MKey),VKKEYSCANCTRLON)) then SendKeyUp(VK_CONTROL);
if (BitSet(Hi(MKey),VKKEYSCANALTON)) then SendKeyUp(VK_MENU);
end;
{Implements a simple binary search to locate special key name strings}
function StringToVKey(KeyString : ShortString) : Word;
var
Found, Collided : Boolean;
Bottom, Top, Middle : Byte;
begin
Result:=INVALIDKEY;
Bottom:=1;
Top:=MaxSendKeyRecs;
Found:=false;
Middle:=(Bottom+Top) div 2;
Repeat
Collided:=((Bottom=Middle) or (Top=Middle));
if (KeyString=SendKeyRecs[Middle].Name) then begin
Found:=true;
Result:=SendKeyRecs[Middle].VKey;
if (KeyString>SendKeyRecs[Middle].Name) then Bottom:=Middle
else Top:=Middle;
Middle:=(Succ(Bottom+Top)) div 2;
end;
Until (Found or Collided);
if (Result=INVALIDKEY) then DisplayMessage('Invalid Key Name');
end;
procedure PopUpShiftKeys;
begin
if (not UsingParens) then begin
if ShiftDown then SendKeyUp(VK_SHIFT);
if ControlDown then SendKeyUp(VK_CONTROL);
if AltDown then SendKeyUp(VK_MENU);
ShiftDown:=false;
ControlDown:=false;
AltDown:=false;
end;
end;
begin
AllocationSize:=MaxInt;
Result:=false;
UsingParens:=false;
ShiftDown:=false;
ControlDown:=false;
AltDown:=false;
I:=0;
L:=StrLen(SendKeysString);
if (L>AllocationSize) then L:=AllocationSize;
if (L=0) then Exit;
if SendKeysString='LEFT' then SendKey(VK_LEFT,1,True);
if SendKeysString='RIGHT' then SendKey(VK_RIGTH,1,True); {ну и тогдале :)}
end;
{AppActivate
This is used to set the current input focus to a given window using its
name. This is especially useful for ensuring a window is active before
sending it input messages using the SendKeys function. You can specify
a window's name in its entirety, or only portion of it, beginning from
the left.
}
var
WindowHandle : HWND;
function EnumWindowsProc(WHandle: HWND; lParam: LPARAM): BOOL; export; stdcall;
const
MAX_WINDOW_NAME_LEN = 80;
var
WindowName : array[0..MAX_WINDOW_NAME_LEN] of char;
begin
{Can't test GetWindowText's return value since some windows don't have a title}
GetWindowText(WHandle,WindowName,MAX_WINDOW_NAME_LEN);
Result := (StrLIComp(WindowName,PChar(lParam), StrLen(PChar(lParam))) <> 0);
if (not Result) then WindowHandle:=WHandle;
end;
function AppActivate(WindowName : PChar) : boolean;
begin
try
Result:=true;
WindowHandle:=FindWindow(nil,WindowName);
if (WindowHandle=0) then EnumWindows(@EnumWindowsProc,Integer (PChar(WindowName)));
if (WindowHandle<>0) then begin
SendMessage(WindowHandle, WM_SYSCOMMAND, SC_HOTKEY, WindowHandle);
SendMessage(WindowHandle, WM_SYSCOMMAND, SC_RESTORE, WindowHandle);
end else Result:=false;
except
on Exception do Result:=false;
end;
end;
end.
|
Сам код взят из Фака и урезан мною  тут осталось некоторые не использованые процедуры... лень было убрать  |
