我的第一个Win32程序

正在学汇编写的第一个窗口，
还是有一点不太懂。

.386
.model flat,stdcall
option casemap:none

include windows.inc
include user32.inc
include kernel32.inc
Include gdi32.inc

includelib user32.lib
includelib kernel32.lib
includelib gdi32.lib

include macro.asm

 WinMain PROTO :DWORD,:DWORD,:DWORD,:DWORD
 WndProc PROTO :DWORD,:DWORD,:DWORD,:DWORD

.data
 szTitle db "glzaboy",0
 szClass db "tensoft",0
 main db "这里是main",0
 SUI STARTUPINFO<17*4,>
 ;PI LPPROCESS_INFOMATION <>
 

.data?
 hInstance dd ?

.code

start:
 push NULL
 mov eax,GetModuleHandle
 call eax
 mov hInstance,eax
 invoke WinMain,hInstance,NULL,NULL,SW_SHOWDEFAULT
 
 push 0
 call ExitProcess

WinMain Proc hinstance:DWORD,hPrevInstance:DWORD,lpCmdLine:DWORD,nShowCmd:DWORD
 local wc :WNDCLASSEX
 local msg : MSG
 local hwnd :HWND
 
 mov wc.cbSize,sizeof WNDCLASSEX
 mov wc.style,CS_HREDRAW or CS_VREDRAW or CS_BYTEALIGNWINDOW
 mov wc.lpfnWndProc,offset WndProc
 mov wc.cbClsExtra,NULL
 mov wc.cbWndExtra,NULL
 push hinstance
 pop wc.hInstance
 mov wc.hbrBackground,COLOR_BTNFACE+1
 mov wc.lpszClassName,offset szClass
 mov wc.lpszMenuName,NULL
 invoke LoadIcon,hinstance,102
 mov wc.hIcon,eax
 mov wc.hCursor,NULL
 mov wc.hIconSm,0
 invoke RegisterClassEx, ADDR wc
; invoke CreateWindowEx,NULL,ADDR szClass,offset szTitle,WS_OVERLAPPEDWINDOW,200,200,400,200,NULL,NULL,hinstance,NULL
 invoke CreateWindowEx,NULL,ADDR szClass,CTXT("tenySoft"),WS_OVERLAPPEDWINDOW,200,200,400,200,NULL,NULL,hinstance,NULL
 mov hwnd,eax
 invoke ShowWindow,hwnd,SW_NORMAL
 invoke UpdateWindow,hwnd
 
; StartLoop:
;  invoke GetMessage,ADDR msg,hwnd,0,0
;   cmp eax, 0
;   je ExitLoop
;    invoke TranslateMessage, ADDR msg
;    invoke DispatchMessage, ADDR msg
;   jmp StartLoop
; ExitLoop:
 
 .while TRUE
  invoke GetMessage,ADDR msg,NULL,0,0
  .break .if eax==0
  invoke TranslateMessage, ADDR msg
  invoke DispatchMessage, ADDR msg
 .endw
 ret
WinMain endp

;消息处理

WndProc proc hWin:DWORD,uMsg:DWORD,wParam:DWORD,lParam:DWORD
 .if uMsg==WM_CREATE
  ;invoke CreateProcess,CTXT("notepad"),0,0,0,FALSE,0,0,0,offset SUI,offset PI
 .elseif uMsg ==WM_QUIT
 .elseif uMsg == WM_DESTROY
  invoke PostQuitMessage,NULL 
 .else
  invoke DefWindowProc,hWin,uMsg,wParam,lParam
 .endif
 ret
WndProc endp

end start 

编译成功后只有2.5K的大小。