Win32汇编学习笔记（三）
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
;
Sender.asm
;
从一个程序向另一个窗口程序发送消息 之 发送程序
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.
386
.model flat,stdcall option
casemap:
none
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
;
Include 文件定义
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
include windows.
inc
include user32.
inc
includelib user32.libinclude kernel32.
inc
includelib kernel32.lib
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
;
数据段
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.datahWnd dd ?szBuffer db
256
dup (?) .constszCaption db
'
SendMessage
'
,
0
szStart db
'
Press OK to start SendMessage, param: %08x!
'
,
0
szReturn db
'
SendMessage returned!
'
,
0
szDestClass db
'
MyClass
'
,
0
;
目标窗口的窗口类
szText db
'
Text send to other windows
'
,
0
szNotFound db
'
Receive Message Window not found!
'
,
0
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
;
代码段
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.code
start:
invoke FindWindow,addr szDestClass,NULL .if eax
mov
hWnd,eax
;
找到目标窗口则发送消息
invoke wsprintf,addr szBuffer,addr szStart,addr szText invoke MessageBox,NULL,offset szBuffer,offset szCaption,MB_OK invoke SendMessage,hWnd,WM_SETTEXT,
0
,addr szText invoke MessageBox,NULL,offset szReturn,offset szCaption,MB_OK .else invoke MessageBox,NULL,offset szNotFound,offset szCaption,MB_OK .endif invoke ExitProcess,NULL
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
end start
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
消息发送者代码：
;
Receiver.asm
;
从一个程序向另一个窗口程序发送消息 之 消息接收程序
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.
386
.model flat,stdcall option
casemap:
none
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
;
Include 文件定义
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
include windows.
inc
include gdi32.
inc
includelib gdi32.libinclude user32.
inc
includelib user32.libinclude kernel32.
inc
includelib kernel32.lib
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
;
数据段
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.data?hInstance dd ?hWinMain dd ?szBuffer db
512
dup (?) .constszClassName db
'
MyClass
'
,
0
szCaptionMain db
'
Receive Message
'
,
0
szReceive db
'
Receive WM_SETTEXT message
'
,0dh,0ah db
'
param: %08x
'
,0dh,0ah db
'
text: "%s"
'
,0dh,0ah,
0
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
;
代码段
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.code
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
;
窗口过程
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
_ProcWinMain proc uses ebx edi esi,hWnd,uMsg,wParam,lParam
mov
eax,uMsg
;
****************************************************************
.if eax == WM_CLOSE invoke DestroyWindow,hWinMain invoke PostQuitMessage,NULL
;
****************************************************************
;
收到 WM_SETTEXT 消息则将消息字符串和字符串地址显示出来
;
****************************************************************
.elseif eax == WM_SETTEXT invoke wsprintf,addr szBuffer,addr szReceive,\ lParam,lParam invoke MessageBox,hWnd,offset szBuffer,addr szCaptionMain,MB_OK
;
****************************************************************
.else invoke DefWindowProc,hWnd,uMsg,wParam,lParam
ret
.endif
;
****************************************************************
xor
eax,eax
ret
_ProcWinMain endp
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
_WinMain proc local
@stWndClass:
WNDCLASSEX local
@stMsg:
MSG invoke GetModuleHandle,NULL
mov
hInstance,eax invoke RtlZeroMemory,addr @stWndClass,sizeof @stWndClass
;
****************************************************************
;
注册窗口类
;
****************************************************************
invoke LoadCursor,
0
,IDC_ARROW
mov
@stWndClass.hCursor,eax
push
hInstance
pop
@stWndClass.hInstance
mov
@stWndClass.cbSize,sizeof WNDCLASSEX
mov
@stWndClass.style,CS_HREDRAW
or
CS_VREDRAW
mov
@stWndClass.lpfnWndProc,offset _ProcWinMain
mov
@stWndClass.hbrBackground,COLOR_WINDOW +
1
mov
@stWndClass.lpszClassName,offset szClassName invoke RegisterClassEx,addr @stWndClass
;
****************************************************************
;
建立并显示窗口
;
****************************************************************
invoke CreateWindowEx,WS_EX_CLIENTEDGE ,offset szClassName,offset szCaptionMain,\ WS_OVERLAPPEDWINDOW,\
50
,
50
,
200
,
150
,\ NULL,NULL,hInstance,NULL
mov
hWinMain,eax invoke ShowWindow,hWinMain,SW_SHOWNORMAL invoke UpdateWindow,hWinMain
;
****************************************************************
;
消息循环
;
****************************************************************
.while TRUE invoke GetMessage,addr @stMsg,NULL,
0
,
0
.break .if eax ==
0
invoke TranslateMessage,addr @stMsg invoke DispatchMessage,addr @stMsg .endw
ret
_WinMain endp
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
start:
call
_WinMain invoke ExitProcess,NULL
;
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
end start
MakeFile文件：
LINK_FLAG
=
/
subsystem
:windows
ML_FLAG
=
/
c
/
coffall: Sender
.
exe Receiver
.
exeSender
.
exe: Sender
.
obj Link
$(
LINK_FLAG
)
Sender
.
objReceiver
.
exe: Receiver
.
obj Link
$(
LINK_FLAG
)
Receiver
.
obj
.
asm
.
obj: ml
$(
ML_FLAG
)
$<
clean:
del
*
.
obj