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TCustomVariantType descendent that implements DispInvoke
Source position: variants.pp line 226
type TInvokeableVariantType = class(TCustomVariantType, IVarInvokeable) |
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public |
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function DoFunction(); virtual; |
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Empty stub for IVarInvokeable.DoFunction, to be implemented in descendents |
function DoProcedure(); virtual; |
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Empty stub for IVarInvokeable.DoProcedure, to be implemented in descendents |
function GetProperty(); virtual; |
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Empty stub for IVarInvokeable.GetProperty, to be implemented in descendents |
function SetProperty(); virtual; |
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Empty stub for IVarInvokeable.SetProperty, to be implemented in descendents |
end; |
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TCustomVariantType descendent that implements DispInvoke |
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Base class for a custom variant type |
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TObject |
TInvokeableVariantType is a TCustomVariantType descendent which implements the TCustomVariantType.DispInvoke method. It translates the DispInvoke" method to calls to one or more of the four methods of IVarInvokeable: DoFunction or DoProcedure for method calls (DISPATCH_METHOD) and GetProperty for property reading (DISPATCH_PROPERTYGET) or SetProperty for property writing (DISPATCH_PROPERTYSET). Other combinations are possible. It has empty stubs for these methods, which must be implemented in a descendent that is used to describe a custom variant.
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Called for methods that return a result (functions) |
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Called for methods that do not return a result (procedures) |
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Called when a property must be read |
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Called when a property must be set |