;ml /coff demo.asm /link /subsystem:windows /entry:main user32.lib kernel32.lib
.486 ;說明使用的指令集
.model flat,stdcall ;記憶體為平坦模型，函式呼叫規則為stacall
option casemap:none ;大小寫敏感
; 函式原型宣告
messageboxa proto :dword,:dword,:dword,:dword
registerclas***a proto :dword
createwindowexa proto :dword,:dword,:dword,:dword,:dword,:dword,:dword,:dword,:dword,:dword,:dword,:dword
showwindow proto :dword,:dword
updatewindow proto :dword
defwindowproca proto :dword,:dword,:dword,:dword
getmessagea proto :dword,:dword,:dword,:dword
translatemessage proto :dword
dispatchmessagea proto :dword
exitprocess proto :dword
; 資料結構定義
wndclas***a struc
cbsize dd ?
style dd ?
lpfnwndproc dd ?
cbcl***tra dd ?
cbwndextra dd ?
hinstance dd ?
hicon dd ?
hcursor dd ?
hbrbackground dd ?
lpszmenuname dd ?
lpszclassname dd ?
hiconsm dd ?
wndclas***a ends
msg struc
hwnd dd ?
message dd ?
wparam dd ?
lparam dd ?
time dd ?
pt dd ?
msg ends
;資料段宣告
.data
szclassname db 'msgwnd',0
wce wndclas***a <0>
msg msg <0>
hinstance dd ?
;**段
.code
msgproc proc
;序言mov edi, edi
push ebp
mov ebp,esp
mov eax, [ebp+0ch] ; 比較msg如果是 wm_destroy 訊息則退出程序
cmp eax, 2
jne lable
push 0
call exitprocess
lable:
push [ebp+14h]
push [ebp+10h]
push [ebp+0ch]
push [ebp+8]
call defwindowproca
pop ebp
ret 16
msgproc endp
register proc
xor eax, eax
mov wce.cbcl***tra, eax
mov wce.cbwndextra, eax
mov wce.hcursor, eax
mov wce.hicon, eax
mov wce.hiconsm, eax
mov eax, 30h
mov wce.cbsize, eax
mov eax, 3h
mov wce.style, eax
mov eax, 11h
mov wce.hbrbackground, eax
mov eax, dword ptr hinstance
mov wce.hinstance, eax
lea eax, msgproc
mov wce.lpfnwndproc, eax
lea eax, offset szclassname
mov wce.lpszclassname, eax
xor eax,eax
mov wce.lpszmenuname, eax
lea eax, wce
push eax
call registerclas***a
ret 4
register endp
main proc
;int 3
mov edi, edi
push ebp
mov ebp,esp
mov eax, [ebp+8]
mov hinstance, eax
lea eax,wce
push eax
call register
; create window
push 0
push 0 ; hinstance
push 0
push 0
push 64h
push 0fah
push 80000000h
push 80000000h
push 0cf0000h
lea eax, offset szclassname
push eax
push eax
push 0
call createwindowexa
push eax
push 5
push eax
call showwindow
call updatewindow
lable:
push 0
push 0
push 0
lea eax, offset msg
push eax
call getmessagea
test eax,eax
je lable_end
lea eax, offset msg
push eax
push eax
call translatemessage
call dispatchmessagea
jmp lable
pop ebp
lable_end:
retmain endp
end
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