[标记]重新开始学win32汇编...-优快云博客

本文介绍了一个使用Win32汇编语言创建带定时器的绘图窗口的应用实例。该程序通过设置定时器事件触发屏幕的刷新，并在窗口中显示当前的时间。涉及Win32 API调用及消息处理流程。

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  1 . 386
  2 .model flat, stdcall
  3 option casemap: none
  4
  5 ; ++++++++++++++++++++++++++++++++++++++++
  6 include windows. inc
  7
  8 include kernel32. inc
  9 include user32. inc
10 include gdi32. inc
11
12 includelib kernel32.lib
13 includelib user32.lib
14 includelib gdi32.lib
15 ; +++++++++++++++++++++++++++++++++++++++++
16 DrawEvent    equ    10000h
17 ; +++++++++++++++++++++++++++++++++++++++++
18 .data
19 ; +++++++++++++++++++++++++++++++++++++++++
20 hInst            HINSTANCE    ?
21 szClassName        db     ' MyClass ' , 0
22 szWindowName    db     ' First Window ' , 0
23
24 szOut    db     20 dup( 0 )
25 szFmt    db     ' %d:%d:%d ' , 0
26 ; +++++++++++++++++++++++++++++++++++++++++
27 .code
28 ; ++++++++++++++++++++++++++++++++++++++++++
29 ; TimerProc
30 ; ++++++++++++++++++++++++++++++++++++++++++
31 _TimerProc    proc _hwnd: HWND,
32                   _uMsg: DWORD,
33                   _idEvent: DWORD,
34                   _dwTime: DWORD
35
36              push TRUE
37              push NULL
38              push _hwnd
39              call InvalidateRect
40
41              ret
42 _TimerProc    endp
43 ; ++++++++++++++++++++++++++++++++++++++++++
44 ; WindowProc
45 ; ++++++++++++++++++++++++++++++++++++++++++
46 _WindowProc    proc _hwnd: HWND,
47                   _uMsg: DWORD,
48                   _wParam: WPARAM,
49                   _lParam: LPARAM
50             local @stSysTime:     SYSTEMTIME
51             local @stPs:         PAINTSTRUCT
52             local @hdc:             HDC
53
54             .if    _uMsg == WM_CREATE
55
56                  push offset _TimerProc
57                  push 1000
58                  push DrawEvent
59                  push _hwnd
60                  call SetTimer
61
62             .elseif _uMsg == WM_PAINT
63
64                  lea eax, @stPs
65                  push eax
66                  push _hwnd
67                  call BeginPaint
68                  mov @hdc, eax
69
70                  lea eax, @stSysTime
71                  push eax
72                  call GetSystemTime
73
74                  movzx eax, @stSysTime.wSecond
75                  push eax
76                  movzx eax, @stSysTime.wMinute
77                  push eax
78                  movzx eax, @stSysTime.wHour
79                  add eax, 8
80                  push eax
81                  push offset szFmt
82                  push offset szOut
83                  call wsprintf
84                  add esp, 20
85
86                  push offset szOut
87                  call lstrlen
88
89                  push eax
90                  push offset szOut
91                  push 100
92                  push 120
93                  push @hdc
94                  call TextOut
95
96                  lea eax, @stPs
97                  push eax
98                  push _hwnd
99                  call EndPaint
100
101             .elseif _uMsg == WM_CLOSE
102
103                  push 0
104                  call PostQuitMessage
105
106             .else
107
108                  push _lParam
109                  push _wParam
110                  push _uMsg
111                  push _hwnd
112                  call DefWindowProc
113
114
115             .endif
116
117
118              ret
119
120 _WindowProc    endp
121 ; ++++++++++++++++++++++++++++++++++++++++++
122 ; WinMain
123 ; ++++++++++++++++++++++++++++++++++++++++++
124 _WinMain    proc _hInst: HINSTANCE,
125                   _hPrev: HINSTANCE,
126                   _lpCmdLine: LPSTR,
127                   _nCmdShow: DWORD
128
129             local @stWndClass:     WNDCLASSEX
130             local @hWnd:         HWND
131             local @stMsg:         MSG
132
133              mov @stWndClass.cbSize, sizeof WNDCLASSEX
134              mov @stWndClass.style, CS_HREDRAW or CS_VREDRAW
135              mov @stWndClass.lpfnWndProc, offset _WindowProc
136              mov @stWndClass.cbClsExtra, 0
137              mov @stWndClass.cbWndExtra, 0
138
139              push _hInst
140              pop @stWndClass.hInstance
141
142              push IDI_APPLICATION
143              push NULL
144              call LoadIcon
145              mov @stWndClass.hIcon, eax
146
147              push IDC_ARROW
148              push NULL
149              call LoadCursor
150              mov @stWndClass.hCursor, eax
151
152              push GRAY_BRUSH
153              call GetStockObject
154              mov @stWndClass.hbrBackground, eax
155
156              mov @stWndClass.lpszMenuName, NULL
157
158              push offset szClassName
159              pop @stWndClass.lpszClassName
160
161              mov @stWndClass.hIconSm, NULL
162
163              lea eax, @stWndClass
164              push eax
165              call RegisterClassEx
166
167              ; or eax, eax
168              ; jz __End
169             .if !eax
170                  ret
171             .endif
172
173              push NULL
174              push _hInst
175              push NULL
176              push NULL
177              push 300
178              push 400
179              push 0
180              push CW_USEDEFAULT
181              push WS_OVERLAPPEDWINDOW
182              push offset szWindowName
183              push offset szClassName
184              push 0
185              call CreateWindowEx
186
187             .if !eax
188                  ret
189             .endif
190              mov @hWnd, eax
191
192              push _nCmdShow
193              push eax
194              call ShowWindow
195
196             .if eax
197                  ret
198             .endif
199
200              push @hWnd
201              call UpdateWindow
202
203             .if    !eax
204                  ret
205             .endif
206
207              push 0
208              push 0
209              push NULL
210              lea eax, @stMsg
211              push eax
212              call GetMessage
213
214             .while eax || eax == - 1
215                  lea eax, @stMsg
216                  push eax
217                  call TranslateMessage
218
219                  lea eax, @stMsg
220                  push eax
221                  call DispatchMessage
222
223                  push 0
224                  push 0
225                  push NULL
226                  lea eax, @stMsg
227                  push eax
228                  call GetMessage
229             .endw
230
231              ret
232
233 _WinMain    endp
234 ; +++++++++++++++++++++++++++++++++++++++++++++
235 start:
236      push NULL
237      call GetModuleHandle
238      mov hInst, eax
239
240      push SW_SHOWNORMAL
241      push NULL
242      push NULL
243      push hInst
244      call _WinMain
245
246      push 0
247      call ExitProcess
248 ; ++++++++++++++++++++++++++++++++++++++++++
249