Abort function causes unexpected processing of abandonment
Abs function absolute value function
The AddExitPRoc function adds a process to the end process table of the runtime library
The Addr function returns the address of the specified object
AdjustLineBreaks function adjusts the line separator of the given string to a CR/LF sequence
The Align property makes the control located in a part of the window
Alignment property control label text location
The AllocMem function allocates a block of a given size on the stack
The AllowGrayed property allows a grayscale selection
AnsiCompareStr function compares strings (case sensitive)
AnsiCompareText function compares strings (case insensitive)
AnsiLowerCase function converts characters to lowercase
AnsiUpperCase function converts characters to uppercase
The Append function opens an existing file in an additional way
ArcTan function cotangent function
AssignFile function assigns an external file name to a file variable
Assigned function tests whether a function or procedure variable is empty
The AutoSize property automatically controls the size of the tag
BackgroundColor attribute background color
The BeginThread function creates threads for memory management in an appropriate way
BevelInner property control box inner box
BevelOuter property control box outer frame method
BevelWidth property control box width
BlockRead function reads one or more records into variables
BlockWrite function writes one or more records from a variable
BorderStyle attribute boundary type
BorderWidth attribute boundary width
Break command terminates for, while, repeat loop statements
Brush attribute brush
Caption attribute tag text content
ChangeFileExt function changes the suffix of the file
ChDir function changes the current directory
Checked property determines the check box selected status
The Chr function returns the character of the specified ordinal number
CloseFile command closes an open file
Color attribute label color
The number of columns displayed by the Columns property
CompareStr function compares strings (case sensitive)
Concat function merge strings
The Continue command continues the next loop of for, while, repeat
The Copy function returns a substring of a string
Cos function cosine function
Does Ctl3D attribute have 3D effect?
Cursor attribute shape after moving the mouse pointer into
The Date function returns the current date
DateTimeToFileDate function converts DELPHI's date format to DOS's date format
DateTimeToStr function converts datetime format to string
DateTimeToString function converts datetime format to string
The DateToStr function converts date format to string
DayOfWeek function returns the value of the week
Dec function decrements the value of variable
The DecodeDate function decomposes the date format into year, month and day
The DecodeTime function decomposes the time format into time, minutes, seconds, and milliseconds
The Delete function deletes a substring from a string
DeleteFile command deletes files
The DiskFree function returns the size of the remaining disk space
The DiskSize function returns the capacity of the specified disk
Dispose function frees up space occupied by dynamic variables
DisposeStr function frees memory space of strings in the stack
DitherBackground attribute increases or decreases the background color by 50%
DragCursor attribute The shape of the cursor when the mouse is pressed
How the DragMode property press works
The number of display data items allowed by the DropDownCount property
EditMask property editing mode
Whether the Enabled property makes the tag open
The EncodeDate function combines the year, month and day into date format
The EncodeTime function combines time, minutes, seconds, and milliseconds into time formats
EndMargin property end edge
The Eof function tests whether the file ends with or without typed files
The Eoln function returns the end of the line status of the text file
Erase command deletes external files
The ExceptAddr function returns the address that caused the current unexpected
The Exclude function removes some elements from the collection
The ExceptObject function returns the current unexpected index
The Exit command exits immediately from the current statement block
Exp Function Exponential Function
The ExpandFileName function returns a string containing an absolute path
Whether the ExtendedSelect property allows the existence of a selection mode, if True, MultiSelect is meaningful.
The ExtractFileDir function returns the drive and path
ExtractFileExt function returns the suffix of the file
ExtractFileName function returns file name
The ExtractFilePath function returns the path to the specified file
The FileAge function returns the time the file already exists
The FileClose command closes the specified file
The FileCreate command creates a new file with the specified file name
FileDateToDateTime function converts DOS's date format to DELPHI's date format
FileExists function checks whether the file exists
FileGatAttr function returns the properties of the file
FileGetDate function returns the DOS date and time mark of the file
The FileOpen command opens the specified file with the specified access mode.
The FilePos function returns the current pointer position of the file
The FileRead command reads from the specified file
The FileSearch command searches for specified files in the directory
FileSeek function changes the pointer to the file
FileSetAttr function sets file properties
FileSetDate function sets the DOS date and time mark of the file
The FileSize function returns the current file size
The FileWrite function writes the specified file
The FillChar function fills the number of consecutive bytes with the specified value.
The FindClose command terminates the FindFirst/FindNext sequence
The FindFirst command searches the directory for the specified file name and attributes
The FindNext command returns the next entry that matches the file name and attributes.
FloatToDecimal function converts floating point numbers to decimal numbers
FloatToStrF function converts floating point numbers to strings
FloatToStr function converts floating point numbers to strings
The FloatToText function converts the given floating point number into a decimal number
FloatToTextFmt function converts the given floating point number into a decimal number
The Flush function flushes the content of the buffer to the output text file.
The FmtLoadStr function loads a string from the program's resource string table
The FmtStr function formats a series of parameters, and the result is returned as parameter Result
Font attribute setting font
The Format function formats a series of parameters and returns a Pascal string
FormatBuf function formats a series of parameters
The FormatDateTime function formats the date and time in the specified format.
The FormatFloat function specifies the format of floating point numbers
The Frac function returns the decimal part of the parameter
The FreeMem function frees up space occupied by dynamic variables at a given size
GetDir Returns the current directory of the specified drive
GetHeapStatus Returns the current status of the memory manager
GetMem Creates a dynamic variable of a specified size and points the pointer to it.
GetMemoryManager returns the entry point of the memory manager
Image on Glyph function button
Halt stops the execution of the program and returns to the operating system
Hi Returns the high address bit of the parameter
High Returns the upper limit value of the parameter
Hint attribute prompt information
Int Returns the integer part of the parameter
Include Add elements to the collection
Insert substrings into strings
IntToHex Converts integer numbers to hexadecimal numbers
IntToStr Convert integer numbers to strings
IOResult Returns the latest I/O operation completion status
IsValidIdent Tests whether the string is a valid identifier
The node displayed by default of Items attribute
Kind attribute placement style
LargeChange attribute maximum change value
Layout attribute image layout
The Length function returns the dynamic length of the string
Lines attribute default display content
Ln function natural logarithmic function
The Lo function returns the low address bit of the parameter
The LoadStr function loads character resources from the executable file of the application
The LowerCase function changes the given string to lowercase
The Low function returns the lower limit value of the parameter
Max attribute maximum value
MaxLength attribute maximum length
Min attribute minimum value
MkDir command creates a subdirectory
Move function copy bytes from source to destination
The MultiSelect property allows several data items to be selected simultaneously
Name The name of the property control
New function creates a new dynamic variable and sets a pointer variable to point to it
The NewStr function allocates a new string on the stack
The Now function returns the current date and time
Odd tests whether the parameters are odd
OnActivate triggers when the focus of the event is moved to the form
OnClick event triggers by clicking on a blank area of the form
OnDblClick event double-clicking on the form to trigger
OnCloseQuery event user attempts to close the form trigger
OnClose event form is fired only after it is closed
OnCreate event form is fired when it is created for the first time
OnDeactivate event user switches to another application triggers
OnDragDrop event triggers when the mouse drag and drop operation ends
OnDragOver event has other controls moved from it to trigger
OnMouseDown event fires when the mouse button is pressed
OnMouseUp event fires when the mouse button is released
OnMouseMove event fires when moving the mouse
OnHide event fires when hiding form
OnKeyDown event triggers when a key is pressed on the keyboard
OnKeyPress event fires when a single character key is pressed on the keyboard
OnKeyUp event fires when a key is released on the keyboard
OnPaint event form has new parts exposed to trigger
OnResize event resizes the form triggers
The OnShow event is triggered instantly before the form is actually displayed
Ord Returns the ordinal number of the ordinal class
OutlineStyle property type
OutOfMemoryError Causes OutOfMemory's accident
PageIndex Property Page Index
Pages Properties Page
The ParamCount function returns the number of parameters passed to the program on the command line.
The ParamStr function returns the specified command line parameter
Pen attribute brush settings
Pi function returns Pi
Picture properties display images
PictureClosed property sets the Closed bitmap
PictureLeaf property sets Leaf bitmap
PictureMinus property sets the Minus bitmap
PictureOpen property sets the Open bitmap
PicturePlus property setting Plus bitmap
Pos function searches for substrings in strings
The Pred function returns the previous parameter
Random function returns a random function
Randomize function initializes the built-in random number generator with a random number
Read function reads a file component into a variable for a formatted file;
For text files, read one or more values into one or more variables
The Readln function executes the Read process and then jumps to the next line of the file
ReadOnly attribute read-only attribute
The ReAllocMem function assigns a dynamic variable
Rename function renames external files
RenameFile function renames files
The Reset function opens an existing file
The Rewrite function creates and opens a new file
RmDir function deletes empty subdirectories
The Round function rounds real values to integer values
RunError function stops execution of the program
ScrollBars attribute scrollbar status
The Seek function moves the current pointer of the file to the specified component
The SeekEof function returns the file end state of the file
The SeekEoln function returns the file's line end state
SelectedColor property Select color
SetMemoryManager function sets the entry point of the memory manager
The SetTextBuf function specifies an I/O buffer for text files
Shape properties display shapes
ShowException function displays unexpected messages and addresses
Sin function Sine function
The SizeOf function returns the number of bytes occupied by the parameter.
SmallChange attribute minimum change value
Whether the Sorted property allows sorting
Sqr function square function
Sqrt function square root function
StartMargin property start edge
State property control current status
The Str function converts a numeric value to a string
The StrAlloc function assigns a buffer of maximum length -1 to a string ending with NULL.
The StrBufSize function returns the maximum number of characters stored in the character buffer allocated by StrAlloc.
The StrCat function appends a string to the end of another string and returns the merged string
The StrComp function compares two strings
The StrCopy function copies a string to another string
The StrDispose function releases strings on the stack
The StrECopy function copies a string to another string and returns a pointer at the end of the result string.
The StrEnd function returns a pointer to the end of the string.
The Stretch property automatically adapts to the size of the control
The StrFmt function formats a series of parameters
The StrICoComp function compares two strings (case insensitive)
StringToWideChar function converts ANSI string to UNICODE string
The StrLCat function appends characters in a string to the end of another string and returns the merged string
The StrLComp function compares two strings with maximum length
The StrLCopy function copies characters from one string to another string
The StrLen function returns the number of characters in a string
The StrLFmt function formats a series of parameters, and the result contains a pointer to the target buffer.
The StrLIComp function compares two strings at maximum length (case insensitive)
The StrLower function converts characters in a string to lowercase
The StrMove function copies characters from one string to another string
The StrNew function allocates a string on the stack
The StrPas function converts a string ending with NULL to a string of the PASCAL class.
The StrPCopy function copies the string of the PASCAL class into a string ending with NULL.
The StrPLCopy function is copied from the maximum length string of the PASCAL class to a string ending with NULL.
The StrPos function returns a pointer for the first time in another string
The StrRScan function returns the pointer of the last character in the string
The StrScan function returns a pointer with the first character in the string
The StrToDate function converts a string to a date format
StrToDateTime function converts strings to date/time format
The StrToFloat function converts the given string to a floating point number
The StrToInt function converts a string to an integer
The StrToIntDef function converts a string to an integer or a default value
The StrToTime function converts a string to a time format
StrUpper function converts characters in strings to uppercase
Style Attribute Type Selection
The Suce function returns subsequent parameters
The high and low address bits of the Swap function exchange parameter
Tabs attribute tags the content of each item
TabIndex attribute tag index
Text displayed by the Text property
TextToFloat function converts a string (in NULL-end format) to a floating point number
Time function returns the current time
TimeToStr function converts time format to string
The Trim function removes leading and trailing spaces and control characters from the given string
The TrimLeft function deletes the first space and control characters from the given string.
The TrimRight function removes the tail space and control characters from the given string.
Trunc function intercepts real value as integer value
Truncate function cuts off the contents of the current file location
UnSelectedColor property color not selected
UpCase Converts characters to uppercase
UpperCase turns the given string into uppercase
Val function converts strings to integer values
VarArrayCreate function creates a variant array with a given boundary and dimension
The VarArrayDimCount function returns the dimension of the given variant
The VarArrayHighBound function returns the upper bound of the dimensions of the given variant array
VarArrayLock function locks the given variant array
The VarArrayLowBound function returns the lower bound of the dimensions of the given variant array
The VarArrayOf function returns the array element of the specified variant
The VarArrayRedim function adjusts the size of the variant by changing the upper limit
The VarArrayUnlock function unlocks the specified variant array
The VarAsType function converts a variant to a specified type
The VarCase function converts a variant to a specified type and saves it
VarClear function clears the specified variant
The VarCopy function copies the specified variant to the specified variant
The VarFormDateTime function returns a variant containing a date and time
VarIsArray function tests whether the variant is an array
VarIsEmpty function tests whether the variant is UNASSIGNED
VarIsNull function tests whether the variant is NULL
VarToDateTime function converts the given variant to datetime
The VarType function converts a variant to a specified type and saves it
Visibility of Visible property controls
When the WantReturns property is True, press Enter to generate a carriage return; when it is False, press Ctrl+Enter to generate a carriage return
Write command writes a variable to the file component for a formatted file; writes one or more values to the file for a text file.
The Writeln command executes the WRITE process and then outputs a line of end flags.
WideCharLenToString function converts ANSI string to UNICODE string
WideCharLenToStrWar function converts UNICODE strings to ANSI string variables
WideCharToString function converts UNICODE string to ANSI string
WideCharToStrVar function converts UNICODE strings to ANSI string variables