;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; Sample code for < Win32ASM Programming >
; by 羅云彬, http://asm.yeah.net
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; FirstWindow.asm
; 窗口程序的模板代碼
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 使用 nmake 或下列命令進行編譯和鏈接:
; ml /c /coff FirstWindow.asm
; Link /subsystem:windows FirstWindow.obj
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
		.386
		.model flat,stdcall
		option casemap:none
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; Include 文件定義
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
include		windows.inc
include		gdi32.inc
includelib	gdi32.lib
include		user32.inc
includelib	user32.lib
include		kernel32.inc
includelib	kernel32.lib
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 數據段
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
		.data?

hInstance	dd		?
hWinMain	dd		?

		.const

szClassName	db	'MyClass',0
szCaptionMain	db	'My first Window !',0
szText		db	'Win32 Assembly, Simple and powerful !',0
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 代碼段
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
		.code
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 窗口過程
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
_ProcWinMain	proc	uses ebx edi esi,hWnd,uMsg,wParam,lParam
		local	@stPs:PAINTSTRUCT
		local	@stRect:RECT
		local	@hDc

		mov	eax,uMsg
;********************************************************************
		.if	eax ==	WM_PAINT
			invoke	BeginPaint,hWnd,addr @stPs
			mov	@hDc,eax

			invoke	GetClientRect,hWnd,addr @stRect
			invoke	DrawText,@hDc,addr szText,-1,\
				addr @stRect,\
				DT_SINGLELINE or DT_CENTER or DT_VCENTER

			invoke	EndPaint,hWnd,addr @stPs
;********************************************************************
		.elseif	eax ==	WM_CLOSE
			invoke	DestroyWindow,hWinMain
			invoke	PostQuitMessage,NULL
;********************************************************************
		.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
;********************************************************************
; 注冊窗口類
;********************************************************************
		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
;********************************************************************
; 建立并顯示窗口
;********************************************************************
		invoke	CreateWindowEx,WS_EX_CLIENTEDGE,offset szClassName,offset szCaptionMain,\
			WS_OVERLAPPEDWINDOW,\
			100,100,600,400,\
			NULL,NULL,hInstance,NULL
		mov	hWinMain,eax
		invoke	ShowWindow,hWinMain,SW_SHOWNORMAL
		invoke	UpdateWindow,hWinMain
;********************************************************************
; 消息循環
;********************************************************************
		.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