RAD Studio VCL Reference
ContentsIndex
TParam Members Public Methods
Public Methods
 
Name 
Description 
 
Responds after the last constructor has executed. 
 
Copies the Name and Value of another TParam object. 
 
Assigns the DataType, Name, and Value properties from a TField object. 
 
Assigns the DataType and Value properties from a TField object. 
 
Responds before the first destructor executes. 
 
Returns a pointer to the runtime type information (RTTI) table for the object type. 
 
Returns a string indicating the type of the object instance (as opposed to the type of the variable passed as an argument). 
 
Determines whether an object is of a specific type. 
 
Returns the type of the immediate ancestor of a class. 
 
Returns the class reference for the object's class. 
 
Performs finalization on long strings, variants, and interface variables within a class. 
 
Sets the Value of the parameter to NULL. 
 
This is the overview for the Create constructor overload. 
 
Provides the interface for a method that processes message records. 
 
Destroys the TCollectionItem instance and frees its memory. 
 
Destroys the TPersistent instance and frees its memory. 
 
Disposes of an object instance. 
 
Calls message-handling methods for the object, based on the contents of the Message parameter. 
 
Returns the address of a published object field. 
 
Free 
Destroys an object and frees its associated memory, if necessary. 
 
Deallocates memory allocated by a previous call to the System::TObject::NewInstance method. 
 
Fills the buffer with the Value of the parameter in the native format of a database field of the appropriate type. 
 
Returns the number of bytes needed to hold the parameter's value in the format used by the corresponding type of database field. 
 
Retrieves a specified interface. 
 
Returns the entry for a specific interface implemented in a class. 
 
Returns a pointer to a structure containing all of the interfaces implemented by a given class. 
 
Returns a string used by the Object Inspector. 
 
Returns the name of the object as it appears in the Object Inspector. 
 
Determines the relationship of two object types. 
 
Initializes a newly allocated object instance to all zeros and initializes the instance's virtual method table pointer. 
 
Returns the size in bytes of each instance of the object type. 
 
Loads the value of a BLOB parameter from the specified file. 
 
Loads the value of a BLOB parameter from a stream. 
 
This is MethodAddress, a member of class TObject. 
 
This is MethodName, a member of class TObject. 
 
Allocates memory for an instance of an object type and returns a pointer to that new instance. 
 
Handles exceptions in methods declared using the safecall calling convention. 
 
Copies a new value for the parameter in physical database format from Buffer. 
 
Copies a new value for the parameter in physical database format from Buffer. 
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