Delphi Basics : RTL By functionality : PgmStructData

Type Name Summary

Variable CmdLine Holds the execution text used to start the current program

Keyword Const Starts the definition of fixed data values

Procedure Dispose Dispose of storage used by a pointer type variable

Variable ExitCode Sets the return code when an application terminates

Procedure FillChar Fills out a section of storage with a fill character or byte value

Function FindCmdLineSwitch Determine whether a certain parameter switch was passed

Procedure FreeAndNil Free memory for an object and set it to nil

Procedure FreeMem Free memory storage used by a variable

Function GetMem Get a specified number of storage bytes

Function Low Returns the lowest value of a type or variable

Procedure New Create a new pointer type variable

Constant Nil A pointer value that is defined as undetermined

Variable Null A variable that has no value

Keyword Packed Compacts complex data types into minimal storage

Function ParamCount Gives the number of parameters passed to the current program

Function ParamStr Returns one of the parameters used to run the current program

Directive Private Starts the section of private data and methods in a class

Directive Protected Starts a section of class private data accesible to sub-classes

Directive Public Starts an externally accessible section of a class

Directive Published Starts a published externally accessible section of a class

Procedure ReallocMem Reallocate an existing block of storage

Variable Result A variable used to hold the return value from a function

Function SizeOf Gives the storage byte size of a type or variable

Keyword ThreadVar Defines variables that are given separate instances per thread

Keyword Type Defines a new category of variable or process

Keyword Var Starts the definition of a section of data variables

Function VarType Gives the current type of a Variant variable

Constant VarTypeMask Mask for the meta-type part of a Variant variable

Keyword With A means of simplifying references to structured variables

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