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win32汇编环境,对 WM_MOUSEMOVE 消息的理解

news 来源：原创 2025/8/21 3:50:55

;运行效果

;win32汇编环境,对 WM_MOUSEMOVE 消息的理解
;理解在 WM_MOUSEMOVE 消息发生时，同时来的wParam和lParam值的含义，并取出各自的值进行运用。从这例子也可以更好的理解windows的消息机制.
;WM_MOUSEMOVE消息就是当鼠标移动时，发送给窗口的消息。如果窗口上面的其它控件，则经过控件上面的不起作用。因为其它控件不是主窗口
;直接抄进RadAsm可编译运行。重要部分加备注。
;下面为asm文件
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.386
.model flat,stdcall
option casemap:none
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; Include 文件定义
include windows.inc
include user32.inc
include kernel32.inc

includelib user32.lib
includelib kernel32.lib
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
; 自定义函数声明
DlgProc proto :DWORD,:DWORD,:DWORD,:DWORD ;对话框窗口函数
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

; 数据段
;Equ 等值定义

ICO_MAIN equ 1000 ;图标
IDSTATIC01 equ 21
IDSTATIC02 equ 22
IDSTATIC03 equ 23
IDSTATIC04 equ 24
IDSTATIC05 equ 25
IDSTATIC06 equ 26
IDSTATIC07 equ 27
IDSTATIC08 equ 28

.data
DlgName db "MyDialog",0

szCurrentXY db "当前鼠标位置是：%d.%d",0
szMsg db "提示",0
szCheshi db "当前的十六进制值是：%lx",0

szMouseLN db "鼠标左键状态：关闭",0
szMouseLY db "鼠标左键状态：开启",0

szMouseRN db "鼠标右键状态：关闭",0
szMouseRY db "鼠标右键状态：开启",0

szSHIFTNO db " SHIFT键状态:关闭",0
szSHIFTYES db " SHIFT键状态:开启",0

szCtrlNO db " Ctrl键状态:关闭",0
szCtrlYES db " Ctrl键状态:开启",0

szMouseCN db "鼠标中键状态：关闭",0
szMouseCY db "鼠标中键状态：开启",0

szXBUTTON1N db "XBUTTON1状态：关闭",0
szXBUTTON1Y db "XBUTTON1状态：开启",0

szXBUTTON2N db "XBUTTON1状态：关闭",0
szXBUTTON2Y db "XBUTTON1状态：开启",0
.data?
hInstance HINSTANCE ?
.const
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

; 代码段
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
.code
start:
invoke GetModuleHandle, NULL
mov hInstance,eax
invoke DialogBoxParam, hInstance, ADDR DlgName,NULL, addr DlgProc, NULL
invoke ExitProcess,eax
DlgProc proc hWnd:HWND, uMsg:UINT, wParam:WPARAM, lParam:LPARAM
LOCAL @szBuffer[256]:byte
LOCAL @hX,@hY

.if uMsg == WM_INITDIALOG
invoke LoadIcon,hInstance,ICO_MAIN
invoke SendMessage,hWnd,WM_SETICON,ICON_BIG,eax

.elseif uMsg == WM_MOUSEMOVE

   ;在 WM_MOUSEMOVE 消息发生时，同时来的wParam的值是32位的，其低16位的值是各种虚拟密钥的象征。
   ;而同时来的lParam值里则是当前鼠标光标的X坐标和Y坐标。lParam是32位的，其低16位是X坐标值，而高16位则是Y坐标
   ;比如你按下SHITE键时移动鼠标，其wParam的低16位会变成 00000100B
   ;比如你按下Ctrl键时移动鼠标，其wParam的低16位会变成 00001000B
   ;比如你同时按下SHITE键和Ctrl键并移动鼠标，其wParam的低16位会变成 00001100B ,就是上面2个值的相加
   mov eax, wParam ;判断鼠标左键是否关闭
   and ax, 00000001B ;按位逻辑与操作，即把ax的值的0位留下，就是从右向左数的第1位，就是这个1，其它位都置0先
   .if ax == 1B
       invoke SendDlgItemMessage,hWnd,IDSTATIC02,WM_SETTEXT,0,addr szMouseLY
   .else
       invoke SendDlgItemMessage,hWnd,IDSTATIC02,WM_SETTEXT,0,addr szMouseLN
   .endif

   mov eax, wParam ;判断鼠标右键是否关闭
   and ax, 00000010B
   .if ax == 10B
       invoke SendDlgItemMessage,hWnd,IDSTATIC03,WM_SETTEXT,0,addr szMouseRY
   .else
       invoke SendDlgItemMessage,hWnd,IDSTATIC03,WM_SETTEXT,0,addr szMouseRN
   .endif

   mov eax, wParam ;判断SHITE键是否关闭
   and ax, 00000100B
   .if ax == 100B
       invoke SendDlgItemMessage,hWnd,IDSTATIC04,WM_SETTEXT,0,addr szSHIFTYES
   .else
       invoke SendDlgItemMessage,hWnd,IDSTATIC04,WM_SETTEXT,0,addr szSHIFTNO
   .endif

   mov eax, wParam ;判断Ctrl键是否关闭
   and ax, 00001000B
   .if ax == 1000B
       invoke SendDlgItemMessage,hWnd,IDSTATIC05,WM_SETTEXT,0,addr szCtrlYES
   .else
       invoke SendDlgItemMessage,hWnd,IDSTATIC05,WM_SETTEXT,0,addr szCtrlNO
   .endif

   mov eax, wParam ;判断鼠标中键是否关闭
   and ax, 00010000B
   .if ax == 10000B
       invoke SendDlgItemMessage,hWnd,IDSTATIC06,WM_SETTEXT,0,addr szMouseCY
   .else
       invoke SendDlgItemMessage,hWnd,IDSTATIC06,WM_SETTEXT,0,addr szMouseCN
   .endif

   mov eax, wParam ;判断XBUTTON1键是否关闭,就是高级鼠标的左侧键，一般鼠标没有
   and ax, 00100000B
   .if ax == 100000B
       invoke SendDlgItemMessage,hWnd,IDSTATIC07,WM_SETTEXT,0,addr szXBUTTON1Y
   .else
       invoke SendDlgItemMessage,hWnd,IDSTATIC07,WM_SETTEXT,0,addr szXBUTTON1N
   .endif

   mov eax, wParam ;判断XBUTTON2键是否关闭,就是高级鼠标的右侧键，一般鼠标没有
   and ax, 01000000B
   .if ax == 1000000B
       invoke SendDlgItemMessage,hWnd,IDSTATIC08,WM_SETTEXT,0,addr szXBUTTON2Y
   .else
       invoke SendDlgItemMessage,hWnd,IDSTATIC08,WM_SETTEXT,0,addr szXBUTTON2N
   .endif

   ;以下开始取出lParam的低16位值和高16值，即鼠标的X坐标和Y坐标
   mov eax, lParam
   movzx eax,ax
   mov @hX,eax
   mov eax, lParam
   shr eax,16
   movzx eax,ax
   mov @hY,eax
   invoke wsprintf,addr @szBuffer,addr szCurrentXY,@hX,@hY
   invoke SendDlgItemMessage,hWnd,IDSTATIC01,WM_SETTEXT,0,addr @szBuffer
.elseif uMsg == WM_CLOSE
invoke EndDialog, hWnd,NULL
.else
mov eax,FALSE
ret
.endif
mov eax,TRUE
ret
DlgProc endp

end start

;下面为rc文件内容
#include "resource.h" //提示缺少该文件，可以在资源里下载

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
#define ICO_MAIN 1000 //图标
#define IDSTATIC01 21
#define IDSTATIC02 22
#define IDSTATIC03 23
#define IDSTATIC04 24
#define IDSTATIC05 25
#define IDSTATIC06 26
#define IDSTATIC07 27
#define IDSTATIC08 28

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
ICO_MAIN ICON "Main.ico"

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

//定义对话框
MyDialog DIALOG 10, 10, 160, 170
STYLE DS_CENTER | WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU | WS_VISIBLE | WS_OVERLAPPED | DS_MODALFRAME | DS_3DLOOK
CAPTION "对话框程序模版"
FONT 12, "方正姚体"
BEGIN
CONTROL "可以按着CTRL或SHIFT键移动鼠标试试", -1, "Static", WS_CHILD | WS_VISIBLE, 10, 10, 200, 10
CONTROL "当前鼠标位置:", IDSTATIC01, "Static", WS_CHILD | WS_VISIBLE, 30, 30, 100, 10
CONTROL "鼠标左键状态：", IDSTATIC02, "Static", WS_CHILD | WS_VISIBLE, 30, 50, 100, 10
CONTROL "鼠标右键状态:", IDSTATIC03, "Static", WS_CHILD | WS_VISIBLE, 30, 65, 100, 10
CONTROL "SHIFT键状态:", IDSTATIC04, "Static", WS_CHILD | WS_VISIBLE, 30, 80, 100, 10
CONTROL "Ctrl键状态:", IDSTATIC05, "Static", WS_CHILD | WS_VISIBLE, 30, 95, 100, 10
CONTROL "鼠标中键状态:", IDSTATIC06, "Static", WS_CHILD | WS_VISIBLE, 30, 110, 100, 10
CONTROL "XBUTTON1状态:", IDSTATIC07, "Static", WS_CHILD | WS_VISIBLE, 30, 125, 100, 10
CONTROL "XBUTTON2状态:", IDSTATIC08, "Static", WS_CHILD | WS_VISIBLE, 30, 140, 100, 10
END

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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