MasteringVFP/2/8

=== sys() 函數 ===
這是一個雜項函數,多半與系統調校有關係.
功能相當可觀.

{| border=1
!傳入參數
!會回傳的訊息
|----
|SYS(0)
|Network machine information
|----
|SYS(1)
|Julian system date
|----
|SYS(2)
|Seconds since midnight
|----
|SYS(3)
|合法的檔名,多半用來產生不重複的檔名
|----
|SYS(5)
|Default drive or volume
|----
|SYS(6)
|目前印表裝置
|----
|SYS(7)
|Current format file
|----
|SYS(9)
|Visual FoxPro 的序號
|----
|SYS(10)
|String from Julian day number
|----
|SYS(11)
|Julian day number
|----
|SYS(12)
|Available memory in bytes
|----
|SYS(13)
|印表機狀態
|----
|SYS(14)
|Index expression
|----
|SYS(15)
|Character translation
|----
|SYS(16)
|Executing program file name
|----
|SYS(17)
|Processor in use
|----
|SYS(18)
|Current control
|----
|SYS(20)
|Transform German text
|----
|SYS(21)
|Controlling index number
|----
|SYS(22)
|Controlling tag or index name
|----
|SYS(23)
|FoxPro EMS memory usage
|----
|SYS(24)
|EMS memory limit
|----
|SYS(100)
|Console setting. Included for backward compatibility. Use SET("CONSOLE") instead.
|----
|SYS(101)
|Device setting. Included for backward compatibility. Use SET("DEVICE") instead.
|----
|SYS(102)
|Printer setting. Included for backward compatibility. Use SET("PRINTER") instead.
|----
|SYS(103)
|Talk setting. Included for backward compatibility. Use SET("TALK") instead.
|----
|SYS(602)
|Bitmap Configuration
|----
|SYS(1001)
|Visual FoxPro memory 
|----
|SYS(1011)
|Number of Memory Handles
|----
|SYS(1016)
|User object memory use
|----
|SYS(1023)
|Enable Help diagnostic mode.
|----
|SYS(1024)
|Disable Help diagnostic mode
|----
|SYS(1037)
|Page Setup Dialog Box
|----
|SYS(1104)
|Purge Cached Memory
|----
|SYS(1269)
|Property Information
|----
|SYS(1270)
|Object Location
|----
|SYS(1271)
|Object's .SCX File
|----
|SYS(1272)
|Object Hierarchy
|----
|SYS(1500)
|Activate a menu item
|----
|SYS(2000)
|File name wildcard match
|----
|SYS(2001)
|SET command status
|----
|SYS(2002)
|Turn insertion point on or off
|----
|SYS(2003)
|Current directory
|----
|SYS(2004)
|Visual FoxPro start directory
|----
|SYS(2005)
|Current resource file
|----
|SYS(2006)
|Current graphics card
|----
|SYS(2007)
|Checksum value
|----
|SYS(2010)
|CONFIG.SYS file settings
|----
|SYS(2011)
|Current lock status
|----
|SYS(2012)
|Memo field block size
|----
|SYS(2013)
|System menu name string
|----
|SYS(2014)
|Minimum path
|----
|SYS(2015)
|Unique procedure name
|----
|SYS(2016)
|SHOW GETS WINDOW name
|----
|SYS(2017)
|Checksum value based on the current record in the current work area
|----
|SYS(2018)
|Error message parameter
|----
|SYS(2019)
|Configuration file name and location
|----
|SYS(2020)
|Default disk size
|----
|SYS(2021)
|Filtered index expression
|----
|SYS(2022)
|Disk cluster (block) size
|----
|SYS(2023)
|Temporary Path
|----
|SYS(2029)
|Table type
|----
|SYS(2030)
|Debug
|----
|SYS(2040)
|Detect Report Status
|----
|SYS(2060)
|Mouse wheel event handling setting
|----
|SYS(2300)
|Add or Remove Code Page
|----
|SYS(2333)
|ActiveX Dual Interface Support
|----
|SYS(2334)
|Automation Server Invocation Mode
|----
|SYS(2335)
|Unattended Server Mode
|----
|SYS(2336)
|Critical Section Support
|----
|SYS(2339)
|Call CoFreeUnusedLibraries when COM object is released
|----
|SYS(2340)
|NT Service Support
|----
|SYS(2410)
|Error handler type for an error
|----
|SYS(2450)
|Application Search Path Order
|----
|SYS(2600)
|Return Pointer As String
|----
|SYS(2700)
|Enables Windows XP Themes
|----
|SYS(2800)
|Accessibility Support
|----
|SYS(2801)
|Event Tracking Support
|----
|SYS(3004)
|Return Locale ID
|----
|SYS(3005)
|Set Locale ID
|----
|SYS(3006)
|Set Language and Locale IDs
|----
|SYS(3050)
|Set Buffer Memory Size
|----
|SYS(3051)
|Set Lock Retry Interval
|----
|SYS(3052)
|Override SET REPROCESS Locking
|----
|SYS(3053)
|ODBC Environment Handle
|----
|SYS(3054)
|Rushmore Query Optimization Level
|----
|SYS(3055)
|FOR and WHERE Clause Complexity
|----
|SYS(3056)
|Read Registry Settings
|----
|SYS(3095)
|IDispatch Pointer
|----
|SYS(3096)
|IDispatch Object Reference
|----
|SYS(3097)
|Add Reference to Object
|----
|SYS(3098)
|Release Object Reference
|----
|SYS(3099)
|SQL Data Engine Compatibility Mode
|----