RAD Studio VCL Reference
ContentsIndex
PreviousUpNext
TCOMConnection Members

The following tables list the members exposed by TCOMConnection.

 
Name 
Description 
 
Occurs immediately before the remote login dialog. 
 
Name 
Description 
 
FComponentStyle is the field of the ComponentStyle read-only property. 
 
Name 
Description 
 
Called when an application uses a component interface. 
 
Called when an application releases a component interface. 
 
Copies the properties of an object to a destination object. 
 
Sets the private, internal storage for the Name property to the string passed in NewName. 
 
Designates methods for storing an object's unpublished data on a stream such as a form file. 
 
Provides an interface for a method that reads and writes otherwise unpublished data. 
 
Connects to an application server. 
 
Provides the interface for a method that terminates the connection. 
 
Drops a connection to an application server. 
 
Returns the value of the AppServer property. 
 
Returns the owner of a child component being read from a stream. 
 
Returns the parent, or if there is no parent, returns the owner of a child component being read from a stream. 
 
Enumerates all child components. 
 
Returns the value of the Connected property. 
 
Returns the value of the Connected property. 
 
Returns a dataset, given its index in the DataSets property array. 
 
Returns the value of the DataSetCount property. 
 
Maps a single member and an optional set of argument names to a corresponding set of integer dispatch identifiers (dispIDs). 
 
Returns the owner of a component. 
 
Returns the owner of an object. 
 
Returns the GUID for the application server. 
 
Retrieves the type information for an object. 
 
Returns the number of type information interfaces that an object provides (either 0 or 1). 
 
Provides access to Automation properties and methods when the component wraps an Automation object. 
 
Initializes the component after the form file has been read into memory. 
 
Initializes the connection component after all objects in the form or data module have been loaded. 
 
Forwards notification messages to all owned components. 
 
Responds when other objects are created or destroyed. 
 
Responds when the component is created from the component palette. 
 
Returns a reference to a specified interface if the object supports that interface. 
 
Reads the state of the component. 
 
Registers an object that uses the connection component. 
 
Informs all registered clients that use the connection component when a connection is opened or closed. 
 
Clears or sets csAncestor state in the component's ComponentState property. 
 
Sets the AppServer property. 
 
Sets the visual ordering of a child control. 
 
Sets the Connected property. 
 
Ensures that components inserted at design time have their design-mode flag set. 
 
Ensures that components inserted at design time have their design-mode flag set. 
 
Sets the csInline bit of the component's ComponentState property 
 
Sets the value of the Name property. 
 
Sets the parent component. 
 
Removes a registered client so that it is no longer associated with the connection component. 
 
Clears the csUpdating state in the component's ComponentState property when the component finishes updating. 
 
Provides the interface for a method that adds type library and version information to the Registry on components that implement COM interfaces. 
 
Sets the csUpdating state in the component's ComponentState property. 
 
Determines whether an object can be inserted into a container. 
 
Provides the interface for a method that validates an child component before it is inserted. 
 
Ensures that renaming an owned component does not create name conflict. 
 
Writes the state of the component. 
 
Name 
Description 
 
Specifies an Object Broker that allows the connection component to choose from several application servers. 
 
Indicates whether the Connected property was true when the connection component was loaded from a stream. 
 
Name 
Description 
 
Occurs after a connection is established. 
 
Occurs after the connection closes. 
 
Occurs immediately before establishing a connection. 
 
Occurs immediately before the connection closes. 
 
Occurs when a communication channel opens to the server. 
 
Name 
Description 
 
Increments the reference count for this interface. 
 
Decrements the reference count for this interface. 
 
Responds after the last constructor has executed. 
 
Copies the contents of another, similar object. 
 
Performs any necessary actions before the first destructor is called. 
 
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. 
 
Closes the connection. 
 
Allocates memory and constructs a safely initialized instance of a component. 
 
Creates an instance of TCustomConnection
 
Creates an instance of a remote server component. 
 
Creates an instance of a dispatch connection component. 
 
Constructs an object and initializes its data before the object is first used. 
 
Provides the interface for a method that processes message records. 
 
Disposes of the component and its owned components. 
 
Destroys the TPersistent instance and frees its memory. 
 
Destroys the instance of a connection component. 
 
Disposes of an object instance. 
 
Destroys all owned components. 
 
Indicates that the component and its owned components are about to be destroyed. 
 
Calls message-handling methods for the object, based on the contents of the Message parameter. 
 
Checks if the current instance and the parameter are equal. 
 
Executes an action. 
 
This is the overview for the FieldAddress method overload. 
 
Indicates whether a given component is owned by the component. 
 
Free 
Destroys an object and frees its associated memory, if necessary. 
 
Deallocates memory allocated by a previous call to the System::TObject::NewInstance method. 
 
Ensures that AComponent is notified that the component is going to be destroyed. 
 
Frees the interface reference for components that were created from COM classes. 
 
Returns a reference to the component associated by the implementing class. 
 
Returns a TComponent enumerator. 
 
Returns an integer containing the hash code. 
 
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. 
 
Returns the containing Component. 
 
Executes a callback for all provider objects on the application server. 
 
Returns the IAppServer interface of the application server. 
 
Returns the IAppServer interface of the application server. 
 
Returns a list of application servers (remote data modules) to which the component can connect. 
 
Returns a list of remote data modules to which the component can connect. 
 
Verifies whether the component has a parent. 
 
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. 
 
Establishes the component as the owner of a specified component. 
 
Returns the size in bytes of each instance of the object type. 
 
Indicates whether the component implements a specified interface. 
 
This is the overview for the MethodAddress method overload. 
 
Returns the name of a class method by address. 
 
Allocates memory for an instance of an object type and returns a pointer to that new instance. 
 
Open 
Opens the connection. 
 
Returns a reference to a specified interface if the object supports that interface. 
 
Establishes or removes internal links that cause this component to be notified when the implementer of a specified interface is destroyed. 
 
Removes a specified component specified from the component's Components list. 
 
Disables destruction notification that was enabled by FreeNotification 
 
Handles exceptions in methods declared using the safecall calling convention. 
 
Handles exceptions in methods declared using the safecall calling convention. 
 
Identifies whether the component is a subcomponent. 
 
Returns a string containing the class name. 
 
Returns a string containing the unit name. 
 
Updates the state of an action. 
 
Name 
Description 
 
Contains the interface for communicating with the application server. 
 
Specifies the interface reference implemented by the component. 
 
Indicates the number of components owned by the component. 
 
Indicates the position of the component in its owner's Components property array. 
 
Lists all components owned by the component. 
 
Describes the current state of the component, indicating when a component needs to avoid certain actions. 
 
Governs the behavior of the component. 
 
Determines whether a connection has been established to the remote source of data. 
 
Indicates the number of datasets associated with the connection component. 
 
Lists the datasets currently using this connection component. 
 
Contains information used by the Form designer. 
 
Specifies whether a login dialog appears immediately before opening a new connection. 
 
Indicates the component that is responsible for streaming and freeing this component. 
 
Represents information used internally by components that support COM. 
 
Name 
Description 
 
Occurs after a connection is established. 
 
Occurs after the connection closes. 
 
Occurs immediately before establishing a connection. 
 
Occurs immediately before the connection closes. 
 
Occurs immediately before the remote login dialog. 
 
Occurs when a communication channel opens to the server. 
 
Name 
Description 
 
Indicates whether the TDispatchConnection object is connected to an application server. 
 
Specifies whether a login dialog appears immediately before opening a new connection. 
 
Name 
Specifies the name of the component as referenced in code. 
 
Specifies the GUID of the application server with which to connect. 
 
Specifies the name of the application server with which to connect. 
 
Tag 
Stores an integer value as part of a component. 
Copyright(C) 2009 Embarcadero Technologies, Inc. All Rights Reserved.
What do you think about this topic? Send feedback!