WIN32汇编，关于图标资源那一章的问题

[IT保安]

#include <resource.h>

#define		IDM_MAIN		0x0001
#define		ICO_MAIN		0x0002
#define		IDA_MAIN		0x0001
#define		IDM_OPTION		0x0003
#define		IDM_EXIT		0x0004
#define		IDM_SETFONT		0x0005
#define		IDM_SETCOLOR	0x0006
#define		IDM_BIG			0x0007
#define		IDM_SMALL		0x0008
#define		ICO_BIG			0x1000
#define		ICO_SMALL		0x1001
#define		CUR_2			0x1000
#define		IDM_CUR1		0x2203
#define		IDM_CUR2		0x2204
#define		IDM_HELP		0x2205
#define		IDM_ABOUT		0x2206


ICO_BIG		ICON			"Big.ico"
ICO_SMALL	ICON			"Small.ico"
CUR_2		CURSOR			"2.Cur"

IDM_MAIN	menu			discardable
BEGIN
			popup			"文件(&F)..."
			BEGIN
					menuitem		"打开文件(&O)..."		IDM_OPTION
					menuitem		separator
					menuitem		"退出(&P)..."			IDM_EXIT	
			END
			popup			"设置(&P)..."
			BEGIN
					menuitem		"设置字体"				IDM_SETFONT
					menuitem		"固定光标"              IDM_CUR2
					menuitem		"动态光标"				IDM_CUR1
					menuitem		separator
					menuitem		"大图标"				IDM_BIG
					menuitem		"小图标"				IDM_SMALL
			END
END
					

;编写第一个自主完成的窗口程序

                   .386
				   .model flat,stdcall
				   option casemap:none
include       windows.inc			   
include       user32.inc
includelib    user32.lib
include       kernel32.inc
includelib    kernel32.lib
include       gdi32.inc
includelib    gdi32.lib

;----------------------------
;开始等值定义，不同于C的#define，用EQU
;-----------------------------
IDM_MAIN		equ			0001h
ICO_MAIN		equ			0002h
IDA_MAIN		equ			0001h
IDM_OPTION		equ			0003h
IDM_EXIT		equ			0004h
IDM_SETFONT		equ			0005h
IDM_SETCOLOR	equ			0006h
IDM_BIG			equ 		0007h
IDM_SMALL		equ			0008h
ICO_SMALL		equ			1001h
CUR_2			equ			1000h
IDM_CUR1		equ			2203h
IDM_CUR2		equ			2204h
ICO_BIG			equ			1000h
IDM_HELP		equ			2205h
IDM_ABOUT		equ			2206h


.data
szButton   db  'Button',0
szButtonText db  'Button',0

.data?
hInstance  dd  ?
hWinMain   dd  ?
hMenu	   dd  ?
hSubMenu	dd  ?
hIcoBig		dd  ?
hIcoSmall	dd	?
hCur1		dd	?
hCur2		dd  ?

.const
szClassName  db  'Myclass',0
szCaption    db  '我的窗口',0
szText       db  '窗口内容',0
szMessageBoxText	db		'你按下了这个键，此ID命令是:%d',0
szMessageBoxTitle1	db		'按键检测',0
szSysmenuAppen		db		'增加主题...',0
szCursorFile		db		'1.ani',0
.code
_DisplayMenuItem		Proc		_dwCommandId
             local  @szBuffer[256]:byte
		 pushad
			 invoke wsprintf,addr @szBuffer,addr szMessageBoxText,_dwCommandId
			 invoke MessageBox,hWinMain,addr @szBuffer,addr szMessageBoxTitle1,MB_OK
		 popad		
 ret
_DisplayMenuItem        endp    
_Quit					Proc
			 invoke DestroyWindow,hWinMain
			 invoke PostQuitMessage,NULL
			 ret
_Quit					endp
_WndProc     Proc     uses ebx esi edi hWnd,uMsg,wParam,lParam        ;窗口过程
             local @stPs:PAINTSTRUCT  ;PAINTSTRUCT包含绘制应用程序所有窗口的信息
			 local @stRect:RECT ;用来存储成对出现的参数，比如某个点的坐标，高度宽度等
			 local @hDc
			 local @stPos:POINT
			 local @hSysMenu
			 mov eax,uMsg
			 .if eax== WM_CREATE
			 invoke LoadIcon,hInstance,ICO_BIG
			 mov hIcoBig, eax
			 invoke LoadIcon,hInstance,ICO_SMALL
			 mov hIcoSmall,eax
			 invoke LoadCursorFromFile,addr szCursorFile
			 mov hCur1,eax
			 invoke LoadCursor,hInstance,CUR_2
			 mov hCur2,eax
			 invoke SendMessage,hWnd,WM_COMMAND,IDM_BIG,NULL
			 invoke SendMessage,hWnd,WM_COMMAND,IDM_SMALL,NULL
			 
			 invoke GetSubMenu,hMenu,1
			 mov hSubMenu,eax;取得第一个菜单的的子菜单的句柄，1代表是第一个，比如菜单
			                 ;第一个是文件，那么就是取文件这个菜单的弹出式菜单的句柄
							 ;同理，入股第二个是查看，那么将1改成2，就是取查看这个菜单
							 ;的弹出式菜单的句柄
;-----------------
;在系统菜单中增加菜单项
;-----------------
			invoke GetSystemMenu,hWnd,FALSE ;如果参数为TRUE,则将原窗口菜单回复为default，原
			                                ;窗口菜单会销毁，用FALSE表示一个窗口菜单的copy，
											;并且返回值就是这个copy的句柄，可以进行修改
			mov @hSysMenu,eax
			invoke AppendMenu,@hSysMenu,MF_SEPARATOR,0,NULL
			invoke AppendMenu,@hSysMenu,0,IDM_HELP,addr szSysmenuAppen
;----------------------
;处理菜单和加速键信息，wm_command信息
;--------------------------
			.elseif  eax==WM_COMMAND
					invoke _DisplayMenuItem,wParam
					mov		eax,wParam
					movzx	eax,ax
					.if eax==IDM_EXIT
						call _Quit
						;.elseif eax>=IDM_TOOLBAR && eax<=IDM_STATUSBAR
						;		mov ebx, eax
						;		invoke GetMenuState,hMenu,ebx,MF_CHECKED
						;		.if eax==MF_CHECKED
						;			mov eax, MF_UNCHECKED
						;		.else 
						;		    mov eax,MF_CHECKED
						;		.endif
						; invoke CheckMenuItem,hMenu,ebx,eax
						; .elseif eax>=IDM_BIG && eax<=IDM_DETAIL
						; invoke CheckMenuRadioItem,hMenu,IDM_BIG,IDM_DETAIL,eax,MF_BYCOMMAND
					     .elseif eax==IDM_BIG
						 invoke SendMessage,hWnd,WM_SETICON,ICON_BIG,hIcoBig
						 invoke CheckMenuRadioItem,hMenu,IDM_BIG,IDM_SMALL,\
						        IDM_BIG,MF_BYCOMMAND
						 .elseif eax==IDM_SMALL
						 invoke SendMessage,hWnd,WM_SETICON,ICON_BIG,hIcoSmall
						 invoke CheckMenuRadioItem,hMenu,IDM_BIG,IDM_SMALL,\
						        IDM_SMALL,MF_BYCOMMAND
						 .elseif eax==IDM_CUR1
						 invoke SetClassLong,hWnd,GCL_HCURSOR,hCur1
						 invoke CheckMenuRadioItem,hMenu,IDM_CUR1,IDM_CUR2,IDM_CUR1,MF_BYCOMMAND
						 .elseif eax==IDM_CUR2
						 invoke SetClassLong,hWnd,GCL_HCURSOR,hCur2
						 invoke CheckMenuRadioItem,hMenu,IDM_CUR1,IDM_CUR2,IDM_CUR2,MF_BYCOMMAND
						 
						 
					.endif
;--------------------
;处理系统菜单
;-------------------
			.elseif eax==WM_SYSCOMMAND	
                    ;invoke _DisplayMenuItem,wParam			
					mov eax,wParam					
					movzx eax,ax
					.if eax==IDM_HELP || eax==IDM_ABOUT
							invoke _DisplayMenuItem,wParam
					.else
					    invoke DefWindowProc,hWnd,uMsg,wParam,lParam
						ret
					.endif
;--------------------------
;处理右键弹出菜单问题
;----------------------------
              .elseif eax==WM_RBUTTONDOWN
					invoke GetCursorPos,addr @stPos
					invoke TrackPopupMenu,hSubMenu,TPM_LEFTALIGN,\
					       @stPos.x,@stPos.y,NULL,hWnd,NULL
			  .elseif eax==WM_CLOSE
					call _Quit
			  .else
			         invoke DefWindowProc,hWnd,uMsg,wParam,lParam
						ret
			  .endif
			  xor eax,eax
			  ret

_WndProc      endp
             

_WinMain     Proc       
             local @stWndClass:WNDCLASSEX
			 local @stMsg:MSG	
			 local @hAccelerator
             invoke GetModuleHandle,NULL
             mov hInstance,eax     ;得到模块句柄，放入hInstance
			 invoke LoadMenu,hInstance,IDM_MAIN;成功则返回菜单资源的句柄
			 mov hMenu,eax
			 invoke LoadAccelerators,hInstance,IDA_MAIN
			 mov @hAccelerator,eax
			 invoke RtlZeroMemory,addr @stWndClass,sizeof @stWndClass
			 invoke LoadCursor,0,IDC_ARROW
			 mov @stWndClass.hCursor,eax
			 invoke LoadIcon,hInstance,ICO_MAIN
			 mov @stWndClass.hIcon,eax
			 mov @stWndClass.hIconSm,eax
			 push hInstance
		     pop @stWndClass.hInstance
			 mov @stWndClass.cbSize,sizeof @stWndClass
			 mov @stWndClass.lpfnWndProc,offset _WndProc			 
			 mov @stWndClass.lpszClassName,offset szClassName
			 mov @stWndClass.style,CS_HREDRAW or CS_VREDRAW
			 mov @stWndClass. hbrBackground,COLOR_WINDOW+1 ;完成WndClassEx设置
			 ;开始注册窗口
			 invoke RegisterClassEx,addr @stWndClass
			 ;开始创立窗口
			 invoke CreateWindowEx,WS_EX_CLIENTEDGE,offset szClassName,\
			                       offset szCaption,WS_OVERLAPPEDWINDOW,\
								   100,100,200,300,NULL,hMenu,\
								   hInstance,NULL
			 mov hWinMain,  eax
			 ;绘制窗口
			 invoke ShowWindow,hWinMain,SW_SHOWNORMAL
			 ;更新窗口
			 invoke UpdateWindow,hWinMain
			 ;窗口建立完毕，开始信息循环
			 .while TRUE
			 invoke GetMessage,addr @stMsg,NULL,0,0
			 .break .if eax==0
			 invoke TranslateAccelerator,hWinMain,@hAccelerator,addr @stMsg
			 .if eax==0
				invoke TranslateMessage,addr @stMsg
				invoke DispatchMessage,addr @stMsg
			 .endif
			 .endw
			 ret
_WinMain     endp
start:
             call _WinMain
			 invoke ExitProcess,NULL
end start
			 
								   

			 
			 

这个是源文件，其他文件不好上传，就不传了，有2个问题，期待大神解答一下：
1.双击生成的exe文件，首先弹出2个对话框，如图所示，然后再弹出窗口，我闹不明白这对话框先于窗口之前弹出，是哪几段代码出现了问题从而导致的！
2.在主程序winmain里面：invoke LoadIcon,hInstance,ICO_MAIN，这一句代码，编译器怎么就知道ICO_MAIN代表了哪个呢？asm文件里它就出现过一次，在rc文件里，也不过是个等值定义，它怎么知道要加载图标给程序呢？

[zara]

1. 你在 WM_CREATE 里不是有两个 SendMessage() 吗，是它们触发的对话框吧，而这时 CreaetWindowsEx() 还没有返回，所以对话框就先于主窗口出现。
2. LoadIcon() 不就是载入图标资源的吗，当然是去加载图标而非其它的如对话框、光标之类的其它类型的资源了。