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DELPHI RTL Reference

SelectDirectory function
Brings up a dialog box ready for the user to select a directory name.

SetCurrentDir function
Sets the current directory.

SetLength procedure
Changes the size of a dynamic array or a string.

SetString procedure
Sets the lenght and contents of a given string.

SizeOf function
Returns the number of bytes occupied by a variable or type.

ShowMessage procedure
Displays a message in a dialog box, waits for the user to click an OK button.

ShowMessageFmt procedure
Displays formated message in a dialog box, waits for the user to click an OK button.

Sign function
Indicates whether a numeric value is positive, negative, or zero.

Sleep function
Pauses program execution for a specified number of microseconds.

Slice function
Returns a sub-section of an array.

Sqr function
Returns the square of a number.

Sqrt function
Returns the square root of a number.

Str procedure
Formats a string from an integer or floating point variable.

StrToBool function
Returns a boolean from a string value, if *possible*.

StrToBoolDef function
Returns a boolean from a string value, on error returns "Default".

StrToInt function
Converts a string to an integer.

StrToFloat function
Returns a floating point value from a string.

StringOfChar function
Returns a string containing a repeating character string of the length specified.

StringReplace function
Returns a string in which a specified substring has been replaced with another substring.

Succ function
Returns the successor of the ordinal value.

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