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Abs Returns the absolute value of an argument System
Addr Returns the address of a specified object System
Append Opens an existing file for appending System
Arc Draws a circular arc Graph
ArcTan Return the arctangent of the argument System
Assign Assigns the name of an file to a file variable System
AssignCrt Associates a text file with the CRT Crt
Bar Draws a bar using the current fill style and color Graph
Bar3D Draws a 3-D bar with the current fill style and color Graph
BlockRead Reads one or more records into a variable System
BlockWrite Writes one or more records From a variable System
ChDir Changes the current directory System
Chr Returns a character with a specified ordinal number System
Circle Draws a circle using (X,Y) as the center point Graph
ClearDevice Clears the current device and prepares it for output Graph
ClearViewPort Clears the current viewport Graph
Close Closes an open file System
CloseGraph Shuts down the graphics system Graph
ClrEol Clears from cursor position to the end of the line Crt
ClrScr Clears the screen and homes the cursor Crt
Concat Concatenates a sequence of strings System
Copy Return the substring of a string System
Cos Return the cosign of an argument System
CSeg Returns the current value of the CS register System
Dec Decrements a variable System
Delay Delays a specified number of milliseconds Crt
Delete Deletes a substring from a string System
DelLine Deletes the line containing the cursor Crt
DetectGraph Determines which graphics driver and mode to use Graph
DiskFree Returns the number of free bytes of a disk drive Dos
DiskSize Returns the total size in bytes of a disk drive Dos
Dispose Disposes a dynamic variable System
DosExitCode Returns the exit code of a subprocess Dos
DrawPoly Draws the outline of a polygon Graph
DSeg Returns the current value of the DS register System
Ellipse Draws an elliptical arc Graph
Eof Return the end of file status of a file System
Eoln Returns the end of line status of a file System
Erase Erases an external file System
Exec Executes a specified program with specified options Dos
Exit Exits from the current block System
Exp Returns the exponential of the argument System
FilePos Returns the current file position of a file System
FileSize Returns the current size of a file System
FillChar Fills a number of bytes with a specified value System
FillPoly Fills a polygon using the scan converter Graph
FindFirst Returns the first disk entry matching arguments Dos
FindNext Returns the next disk entry after a call to FindFirst Dos
FloodFill Fills a bounded region with the current flood pattern Graph
Flush Flushes the buffer of a text file open for output System
Frac Returns the fractional part of the argument System
FreeMem Disposes a dynamic variable of a given size System
GetArcCoords Returns information about the last Arc command Graph
GetAspectRatio Returns the effective resolution of the graphic screen Graph
GetBkColor Returns the current background color Graph
GetColor Returns the curent drawing color Graph
GetDate Returns the current date Dos
GetDir Returns the current directory of the specified drive System
GetFAttr Returns the attributes of a file Dos
GetFillSettings Returns the current fill pattern and color Graph
GetFTime Returns the date and time a file was last written Dos
GetGraphMode Returns the current graphics mode Graph
GetImage Saves a bit image of the specified area Graph
GetIntVec Returns the address stored in a specified int. vector Dos
GetLineSettings Returns the current line style Graph
GetMaxX Returns the right-most column of the graphics driver Graph
GetMaxY Returns the Bottom-Most row of the graphics driver Graph
GetMem Creates a new dynamic variable of a specified size System
GetPalette Returns the current palette and its size Graph
GetPixel Gets the pixel value at X,Y Graph
GetTextSettings Returns the current text information Graph
GetTime Returns the current time Dos
GetViewSettings Returns the current viewport settings Graph
GetX Returns the X coordinate of the current position Graph
GetY Returns the Y coordinate of the current position Graph
GotoXY Positions the cursor Crt
GraphErrorMsg Returns and error message string Graph
GraphResult Returns error code for last graphics operation Graph
Halt Stops program and returns to operating system System
Hi Returns high-order byte of argument System
HighVideo Selects high-intensity characters Crt
ImageSize Returns the size in bytes required to store an image Graph
Inc Increments a variable System
InitGraph Initializes the graphics system Graph
Insert Inserts a substring into a string System
InsLine Inserts an empty line at the cursor position Crt
Int Returns the integer part of the argument System
Intr Executes a specified software interrupt Dos
IOResult Returns the status of the last I/O operation System
Keep Terminates the program and keeps it in memory Dos
KeyPressed Returns True if a key has been pressed on keyboard Crt
Length Returns the length of a string System
Line Draws a line Graph
LineRel Draws a line to a point from the current pointer Graph
LineTo Draws a line from the current pointer Graph
Ln Returns the natural logarithm of the argument System
Lo Returns the low-order byte of the argument System
Lowvideo Selects low intensity characters Crt
Mark Records the state of the heap in a pointer variable System
MaxAvail Returns the size of the largest free block on the heap System
MemAvail Returns the sum of all free blocks in the heap System
MkDir Creates a subdirectory System
Move Copies a specified number of contiguous bytes System
MoveRel Moves the current pointer a relative distance Graph
MoveTo Moves the current pointer to X,Y Graph
MsDos Executes a DOS function call Dos
New Creates a new dynamic variable System
NormVideo Selects the text attribute detected at startup Crt
NoSound Turns off speaker Crt
Odd Tests if the argument is an odd number System
Ofs Returns the offset of a specified object System
Ord Returns the ordinal number of an ordinal-type value Sytem
OutText Sends a string to the output device at the pointer Graph
OutTextXY Sends a string to the output device Graph
PackTime Converts a DateTime record Dos
ParamCount Returns the number of command line parameters System
ParamStr Returns a specified command-line parameter System
Pi Returns the value of Pi System
PieSlice Draws and fills a pie slice Graph
Pos Searches for a substring in a string System
Pred Returns the predecessor of the argument System
Ptr Converts a segment/offset address to a pointer value System
PutImage Puts a bit image onto the screen Graph
PutPixel Plots a pixel at x,y Graph
Random Returns a random number System
Randomize Initializes the random generator with a random value System
Read Reads a file component into a variable System
ReadKey Reads a character from the keyboard Crt
Readln Executes the Read procedure and skips to the next line System
Rectangle Draws a rectangle using the current line and color Graph
Release Returns the heap to a given state System
Rename Renames an external file System
Reset Opens an existing file System
RestoreCrt Restores CRT to video mode detected at startup Graph
RestoreCrtMode Restores the screen mode to its original state Graph
Rewrite Creates and opens a new file System
RmDir Removes an empty subdirectory System
Round Rounds a real-type value to an integer-type value System
Seek Moves the file pointer to a specified position System
SeekEof Returns the end-of-file status of a file System
SeekEoln Returns the end-of-line status of a file System
Seg Returns the segment of a specified object System
SetActivePage Set the active page for graphics output Graph
SetAllPalette Changes all palette colors as specified Graph
SetBkColor Sets the current background color using the palette Graph
SetColor Sets the current drawing color using the palette Graph
SetDate Sets the current date in the operating system Dos
SetFAttr Sets the attributes of a file Dos
SetFillPattern Selects a user defined fill pattern Graph
SetFillStyle Sets the fill pattern and color Graph
SetFTime Sets the date and time a file was last written Dos
SetGraphMode Set the systems to a graphics mode Graph
SetIntVec Sets a specified interrupt vector Dos
SetLineStyle Set the current line width and style Graph
SetPalette Changes a palette color Graph
SetTextBuf Assigns an I/O buffer to a text file System
SetTextJustify Sets the text justification values Graph
SetTextStyle Sets the current text information Graph
SetTime Sets the current operating system time Dos
SetViewPort Sets the current viewport for output Graph
SetVisualPage Sets the visual graphics page Graph
Sin Returns the sine of an argument System
SizeOf Returns the number of bytes occupied by the argument System
Sound Turns on the internal speaker System
SPtr Returns the current value of the SP register System
Sqr Returns the square of the argument System
Sqrt Returns the square root of an argument System
SSeg Returns the current value of the SS register System
Str Converts a numeric value to its string representation System
Succ Returns the successor to the aurgument System
Swap Swaps the high and low order bytes of the argument System
TextAttr Stores the currently selected text attributes Crt
TextBackGround Sets the background color Crt
TextColor Sets the text color Crt
TextHeight Returns the height of a string in pixels Graph
TextMode Selects a specific text mode Crt
TextWidth Returns the width of a string in pixels Graph
Trunc Truncates a real-type value to an integer-type value System
Truncate Truncates the file size at the current file position System
UnpackTime Converts a packed date/time into a DateTime record Dos
UpCase Converts a character to uppercase System
Val Converts a string value to its numeric representation System
WhereX Returns the X-coordinate of the cursor position Crt
WhereY Returns the Y-coordinate of the cursor position Crt
Window Defins a text window onthe screen Crt
Write Writes one or more values to the output device System
Writeln Executes the write procedure the outputs an EOL marker System
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