根据菜单名获取菜单内容

getMenuText(menuName){
	Handle := MenuGetHandle(menuName)

	; 获取菜单内菜单项的数目.
	item_count := DllCall("GetMenuItemCount", "ptr", Handle)
	ret := ""
	Loop, % item_count
	{
		menuItemIndex := A_Index - 1 ;菜单项位置索引
		; 获取菜单项字符串长度
		strLen := DllCall("GetMenuStringA", "Ptr", Handle, "UInt", menuItemIndex, "Ptr", 0, "Int", 0, "UInt", 0x400)
		; 分配缓冲区
		VarSetCapacity(buffer, strLen + 1)
		; 获取菜单项字符串
		DllCall("GetMenuStringA", "Ptr", Handle, "UInt", menuItemIndex, "Ptr", &buffer, "Int", strLen + 1, "UInt", 0x400)
		; 显示菜单项字符串
		ret.= StrGet(&buffer, strLen, "CP0") "`n"
		; 释放资源
		; DllCall("GlobalFree", "Ptr", &buffer)
	}
	MsgBox, % ret
}