Group Modified Functions

Determines free memory.

AlloFree() --> nFreeMemory

Sets or retrieves any ON | OFF setting

Cset????( [<lNewSetting>] ) --> lOldSetting

Sets or retrieves all ON | OFF settings.

CsetAll( [<cNewSettingsList>] ) --> cOldSettingsList

Retrieves the current setting of SET KEY TO.

CsetKey( <nKeyValue> ) --> cProcedureName

Sets or retrieves the current setting of the READONLY option for USE

CsetRdOnly( [<lNewReadOnlyMode>] ) --> lOldReadOnlyMode

Determines the data type of a value or an expression as a numeric value.

DataType( <xValue> ; // Type: Any ) --> nDatatype

Calculates a checksum for disks.

DiskCheck( <cDrive> ) --> nCheckSum

Checks whether a drive is ready.

DiskReady( [<cDrive>] ; // Default: CurDrive() ) --> lDriveIsReady

Checks whether a drive can be written to.

DiskReadyW( [<cDrive>] ; // Default: CurDrive() ) --> lWriteable

Determines file attributes of one or more files.

FileAttr( [<cFileName>] ) --> nFileAttributes

Reads a string from a file starting at a specified position.

FileStr( <cFileName>, [<nBytesToRead>], [<nStartOffSet>], ; // Default: 0 [<lCtrl_Z>] ; // Default: .F. ) --> cString

Loads EGA or VGA fonts from a file.

FontLoad( <cFileName>, ; // Type: C [<nFontArea>], ; // Type: N Default: 1 [<nCharOffSet|lChangePixelHeight>], ; // Type: NL Default: 0 [<nNumberOfChars>] ; // Type: N Default: 256 ) --> nErrorCode

Retrieves the shape of the cursor.

GetCursor() --> nCursorShape

Determines active or last input mode.

InputMode( [<lActiveMode>] ; // Default: .F. ) --> nInputMode

Checks whether an ANSI driver is installed.

IsAnsi() --> lIsDriverInstalled

Checks whether the program runs on an AT computer.

IsAT() --> lIsAT

Retrieves the key codes that have been read from the event queue already.

KeyRead() --> cKeyCodes

Writes keycodes into the event queue.

KeySend( <cKeyValues>, [<lAdditive>] ; // Default: .F. ) --> lPassed

Determines conventional or extended memory.

MemSize( [<lExtendedMemory>] ; // Default: .F. ) --> nMemorySize

Checks whether capture mode is active for a particular LPT port.

NnetCapAct( <nLPT_Port> ) --> lCaptureIsActive

Begins capturing for a particular LPT port.

NnetCapBeg( <nLPT_Port> ) --> lCaptureIsActive

Cancels capturing and aborts the current print job.

NnetCapCan( <nLPT_Port> ) --> lAbort

Ends capturing for a particular LPT port.

NnetCapEnd( <nLPT_Port> ) --> lCaptureIsTerminated

Closes the current print job and flushes it to the printer.

NnetCapFlu( <nLPT_Port> ) --> lJobIsFlushed

Sets specific capture flags for a particular LPT port.

NnetCapSsf( <nLPT_Port>, [<lEjectAtEndOfJob>], ; // Default: .F. [<lPrintBannerPage>], ; // Default: .F. <ignored>, <ignored>, [<nTabWidth>], ; // Default: 0 [<nCopies>], ; // Default: 1 [<nFormNumber>] ; // Default: 0 ) --> lChanged

Sets or releases drive mappings.

NnetMap( [<cDrive>], ; // Default: CurDrive() [<cMapPath>] ) // Default: NIL ) --> lSuccess

Retrieves the path a drive is being mapped to.

NnetMapInf( [<cDrive>] ; // Default: CurDrive() ) --> cPath

Retrieves the maximum number of useable screen columns

NumCol() --> nMaxCol

Retrieves the number of logical drives.

NumDiskL() --> nLogicalDrives

Determines the max. number of files opened at a time by different processes.

NumFiles() --> nMaxOpenFiles

Retrieves the number of function keys.

NumFKey() --> nFunctionKeyCount

Copies a screen page into another one.

PageCopy( <nSourcePage>, <nTargetPage> ) --> lSuccess

Waits for a key press and returns the keyboard scan code.

ScanKey() --> nScanCode

Retrieves or sets the cursor shape

SetCursor( [<nCursorType|nUpperLine>], [<nLowerLine>] ) --> nCursor

Defines whether to start or to stop monitoring timer ticks.

SetTic( <lStartStop> ) --> lStartStop

Queries the video mode at program startup.

VideoSetup() --> nVideoMode

Draws a frame around the active window

WBox( [<cBoxChars|nBoxType>] ; // Type: CN Default: 0 ) --> nWindowID

Opens a new window.

WOpen( <nTop>, <nLeft>, <nBottom>, <nRight>, [<lClearScreen>], ; // Default: .F. [<cColor>], ; // Default: SetColor() [<nCursor>] ; // Default: SetCursor() ) --> nWindowID