用MASM32编程获取并显示WinRAR的路径

最新推荐文章于 2018-11-30 18:03:22 发布

最新推荐文章于 2018-11-30 18:03:22 发布 · 135 阅读

本文介绍了一个使用MASM编写的程序，该程序能够从Windows注册表中读取并显示WinRAR的安装路径。程序通过调用Windows API函数实现注册表项的打开与查询。

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;<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
;文件名:rar_path.asm
;功　能:获取并显示WinRAR的路径
;作　者:PurpleEndurer
;环　境:win2Kpro+masm32 V8

;log
;------------------------------------------------------------------------------------------
;2006.03.24创建
;<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

.386
.modelflat,stdcall
optioncasemap:none
include/masm32/include/windows.inc

include/masm32/include/Advapi32.inc
include/masm32/include/kernel32.inc
include/masm32/include/user32.inc

includelib/masm32/lib/Advapi32.lib
includelib/masm32/lib/kernel32.lib
includelib/masm32/lib/user32.lib

GetRarPathPROTO:LPSTR,:DWORD

m_m2mMACROd1,d2
pushd2
popd1
ENDM

.data
g_szTitledb"WinRAR路径",0
g_szRegPathdb"SOFTWARE/Microsoft/Windows/CurrentVersion/AppPaths/WinRAR.exe",0
g_szFailRegOpenKeyExdb"RegOpenKeyEx失败!",0
g_szFailRegQueryValueExdb"RegQueryValueEx失败!",0
g_szPathdb"Path",0

.data?
g_szRarPathdb256dup(?)
g_hRegKey4RARHKEY?

.code
start:
invokeGetRarPath,ADDRg_szRarPath,SIZEOFg_szRarPath
.ifeax==1
moveax,OFFSETg_szFailRegOpenKeyEx
.elseifeax==2
moveax,OFFSETg_szFailRegQueryValueEx
.else
moveax,OFFSETg_szRarPath
.endif
invokeMessageBox,NULL,eax,OFFSETg_szTitle,MB_OK

invokeExitProcess,NULL

GetRarPathPROClpszRarPath:LPSTR,dwBufLen:DWORD
LOCALdwcbData:dword
;LONGRegOpenKey(
;HKEYhKey,//handleofopenkey
;LPCTSTRlpSubKey,//addressofnameofsubkeytoopen
;PHKEYphkResult//addressofhandleofopenkey
;);

invokeRegOpenKey,HKEY_LOCAL_MACHINE,ADDRg_szRegPath,ADDRg_hRegKey4RAR
.ifeax!=ERROR_SUCCESS
m_m2meax,1
ret
.endif

;LONGRegQueryValueEx(
;HKEYhKey,//1.handleofkeytoquery
;LPTSTRlpValueName,//2.addressofnameofvaluetoquery
;LPDWORDlpReserved,//3.reserved
;LPDWORDlpType,//4.addressofbufferforvaluetype
;LPBYTElpData,//5.addressofdatabuffer
;LPDWORDlpcbData//6.addressofdatabuffersize
;);

m_m2mdwcbData,dwBufLen
invokeRegQueryValueEx,g_hRegKey4RAR,ADDRg_szPath,NULL,NULL,lpszRarPath,ADDRdwcbData

.ifeax!=ERROR_SUCCESS
m_m2meax,2
.else
xoreax,eax
.endif

;LONGRegCloseKey(
;HKEYhKey//handleofkeytoclose
;);
invokeRegCloseKey,g_hRegKey4RAR

ret
GetRarPathENDP

endstart