RAD Studio VCL Reference
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The following tables list the members exposed by TParam.
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Name |
Description |
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This is AssignParam, a member of class TParam. | |
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Copies the properties of an object to a destination object. | |
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Updates the collection to reflect changes to the collection item. | |
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Provides an interface for a method that reads and writes otherwise unpublished data. | |
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This is GetAsBCD, a member of class TParam. | |
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This is GetAsBoolean, a member of class TParam. | |
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This is GetAsCurrency, a member of class TParam. | |
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This is GetAsDateTime, a member of class TParam. | |
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This is GetAsFloat, a member of class TParam. | |
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This is GetAsFMTBCD, a member of class TParam. | |
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This is GetAsInteger, a member of class TParam. | |
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This is GetAsMemo, a member of class TParam. | |
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This is GetAsSQLTimeStamp, a member of class TParam. | |
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This is GetAsString, a member of class TParam. | |
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This is GetAsVariant, a member of class TParam. | |
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This is GetAsWideString, a member of class TParam. | |
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Returns the name of the collection item as it appears in the collection editor. | |
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This is GetIsNull, a member of class TParam. | |
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Returns the collection to which this item belongs. | |
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Returns the owner of an object. | |
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This is IsEqual, a member of class TParam. | |
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This is SetAsBCD, a member of class TParam. | |
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This is SetAsBlob, a member of class TParam. | |
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This is SetAsBoolean, a member of class TParam. | |
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This is SetAsCurrency, a member of class TParam. | |
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This is SetAsDate, a member of class TParam. | |
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This is SetAsDateTime, a member of class TParam. | |
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This is SetAsFloat, a member of class TParam. | |
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This is SetAsFMTBCD, a member of class TParam. | |
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This is SetAsInteger, a member of class TParam. | |
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This is SetAsMemo, a member of class TParam. | |
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This is SetAsSmallInt, a member of class TParam. | |
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This is SetAsSQLTimeStamp, a member of class TParam. | |
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This is SetAsString, a member of class TParam. | |
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This is SetAsTime, a member of class TParam. | |
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This is SetAsVariant, a member of class TParam. | |
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This is SetAsWideString, a member of class TParam. | |
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This is SetAsWord, a member of class TParam. | |
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Sets the value of the Collection property. | |
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This is SetDataType, a member of class TParam. | |
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Sets the name of the collection item as it appears in the collection editor. | |
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Moves the collection item to a specified position in the parent collection. | |
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This is SetText, a member of class TParam. |
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Name |
Description |
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This is DataSet, a member of class TParam. |
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Name |
Description |
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Responds after the last constructor has executed. | |
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Responds before the first destructor executes. | |
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Returns a pointer to the runtime type information (RTTI) table for the object type. | |
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Returns a string indicating the type of the object instance (as opposed to the type of the variable passed as an argument). | |
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Determines whether an object is of a specific type. | |
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Returns the type of the immediate ancestor of a class. | |
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Returns the class reference for the object's class. | |
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Performs finalization on long strings, variants, and interface variables within a class. | |
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Sets the Value of the parameter to NULL. | |
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This is the overview for the Create constructor overload. | |
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Provides the interface for a method that processes message records. | |
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Destroys the TCollectionItem instance and frees its memory. | |
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Destroys the TPersistent instance and frees its memory. | |
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Disposes of an object instance. | |
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Calls message-handling methods for the object, based on the contents of the Message parameter. | |
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Returns the address of a published object field. | |
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Destroys an object and frees its associated memory, if necessary. | |
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Deallocates memory allocated by a previous call to the System::TObject::NewInstance method. | |
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Fills the buffer with the Value of the parameter in the native format of a database field of the appropriate type. | |
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Returns the number of bytes needed to hold the parameter's value in the format used by the corresponding type of database field. | |
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Retrieves a specified interface. | |
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Returns the entry for a specific interface implemented in a class. | |
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Returns a pointer to a structure containing all of the interfaces implemented by a given class. | |
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Returns a string used by the Object Inspector. | |
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Returns the name of the object as it appears in the Object Inspector. | |
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Determines the relationship of two object types. | |
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Initializes a newly allocated object instance to all zeros and initializes the instance's virtual method table pointer. | |
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Returns the size in bytes of each instance of the object type. | |
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Loads the value of a BLOB parameter from the specified file. | |
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Loads the value of a BLOB parameter from a stream. | |
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This is MethodAddress, a member of class TObject. | |
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This is MethodName, a member of class TObject. | |
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Allocates memory for an instance of an object type and returns a pointer to that new instance. | |
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Handles exceptions in methods declared using the safecall calling convention. | |
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Copies a new value for the parameter in physical database format from Buffer. | |
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Copies a new value for the parameter in physical database format from Buffer. |
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Name |
Description |
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Specifies the value of the parameter when it represents a binary-coded decimal (BCD) field with less than 4 decimal places or 20 significant digits. | |
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Specifies the value of the parameter when it represents a binary large object (BLOB) field. | |
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Specifies the value of the parameter when it represents a boolean field. | |
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Specifies the value of the parameter when it represents a field of type Currency. | |
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Specifies the value of the parameter when it represents a date field. | |
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Specifies the value of the parameter when it represents a date-time field. | |
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Specifies the value of the parameter when it represents a float field. | |
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Specifies the value of the parameter when it represents a binary-coded decimal (BCD) field with more than 4 decimal places or 20 significant digits | |
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Specifies the value of the parameter when it represents an integer field. | |
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Specifies the value of the parameter when it represents a memo field. | |
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Specifies the value of the parameter when it represents a small integer field. | |
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Specifies the value of the parameter when it represents an SQL timestamp field. | |
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Specifies the value of the parameter when it represents a string field. | |
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Specifies the value of the parameter when it represents a time field. | |
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This is AsWideString, a member of class TParam. | |
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Specifies the value of the parameter when it represents a word field. | |
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Indicates whether a value (NULL or otherwise) has been assigned to the parameter. | |
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Specifies the TCollection instance to which the TCollectionItem belongs. | |
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The name displayed in the Collection editor. | |
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A unique, permanent index for the item. | |
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Returns the item's position in the Items array of TCollection. | |
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Indicates whether the value assigned to the parameter is NULL (blank). | |
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Indicates the value of the parameter as a string, using the character set of the database table. | |
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Represents the value of the parameter as a string. |
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Name |
Description |
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Indicates the type of field whose value the parameter represents. | |
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Specifies the name of the parameter. | |
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Specifies the number of decimal places for the parameter. | |
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Indicates the type of the parameter the TParam represents. | |
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Specifies the number of digits allowed for a numeric parameter. | |
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Specifies the number of characters in a string-type parameter. | |
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Represents the value of the parameter as a Variant. |
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