Initializes a new instance of the TExternalBase class

Protected function "AcceptInput", proved to the user DLL for registering input types acceptable by the DLL for computation. This function should be invoked in Init, and the registered acceptable input types will be passed to Visual Signal's ExternalDll module via getDllInfo. Visual Signal will use this information to determine whether an input connection is valid or not.

Protected function "AcceptInput", proved to the user DLL for registering input types acceptable by the DLL for computation. This function should be invoked in Init, and the registered acceptable input types will be passed to Visual Signal's ExternalDll module via getDllInfo. Visual Signal will use this information to determine whether an input connection is valid or not.

Interface for exported function "compute", used by Visual Signal's ExternalDll module to execute the actual computation provided by the user DLL. This function just calls the protected function DoCompute, which the user DLL must override with own implementation. External properties, input and output data are processed by Visual Signal before and after the execution of this function. User should expect _inputData to contain the input data and update _outputData to sent to Visual Signal. User should also expect _properties to contain properties from Visual Signal and use UpdateProperty(String, Object) to update properties to Visual Signal.

Protected virtual function "DoCompute", intended to be overridden by the inherited user DLL class to provide the actual computation. This function is called by the exported function compute which is in turn used by Visual Signal's ExternalDll module to start computation.

Interface for exported function "doubleClick", used by Visual Signal's ExternalDll module to handle the callback when user double-clicks the corresponding Visual Signal component. This function just calls the protected function OnDoubleClick, which the user DLL can override with own implementation. Like compute, external properties are processed by Visual Signal before and after the execution of this function; however, input and output data are not processed. User should expect _properties to contain properties from Visual Signal and use UpdateProperty(String, Object) to update properties to Visual Signal.

Exported function "getDllInfo()", used by Visual Signal's ExternalDll module to obtain DLL info such as name, version, API version, language, license control and properties.

Protected function "GetInputCoords", provided to the user DLL to obtain the input coordinates.

Protected function "GetInputDataExtensionKeys", provided to the user DLL to obtain the input data extension.

Protected function "GetInputDataExtensionKeys", provided to the user DLL to obtain the available input data extension keys.

Protected function "GetInputDataRe", provided to the user DLL to obtain the imaginary part of the input data.

Protected function "GetInputDataRe", provided to the user DLL to obtain the real part of the input data.

Exported function "getOutputCoordinates", used by Visual Signal's ExternalDll module to obtain the output data coordinates from the user DLL.

Interface for exported function "getOutputDataIm", used by Visual Signal's ExternalDll module to obtain the output data (imaginary part) from the user DLL.

Exported function "getOutputDataRe", used by Visual Signal's ExternalDll module to obtain the output data (real part) from the user DLL.

Exported function "getOutputDescriptor", used by Visual Signal's ExternalDll module to obtain output descriptor from the user DLL.

Exported function "getProperties", used by Visual Signal's ExternalDll module to obtain property values from the user DLL.

(Deprecated) Protected function "GetPropertyValue", provided to the user DLL for retrieving the current property values. This function is usually invoked in the DoCompute function after the computation stage. This is deprecated. Property values can now be accessed like regular C# public properties.

Static utility function "GetXmlField", provided for general use to obtain a field value from an XML document.

Protected virtual function "Init", intended to be overridden by the inherited user DLL class to provide the initialization function. This function is called by the exported function getDllInfo.

Protected virtual function "OnDoubleClick", intended to be overridden by the inherited user DLL class to provide the actual computation. This function is called by the exported function doubleClick which is in turn used by Visual Signal's ExternalDll module to handle callback when user double-clicked on the module.

Parse external DLL info from XML

(Deprecated) Protected function "RegisterProperty", proved to the user DLL for registering properties used by the DLL computation. This function should be invoked in Init, and the registered properties will be passed to Visual Signal's ExternalDll module via getDllInfo and become available in the module's property dialog for editing. The current values will be communicated back and forth between ExternalDll module and the user DLL via setProperties(String) and getProperties exported functions. This is deprecated. Property values can now be defined like regular C# properties, with appropriate attributes attached to the properties to define their categories, display names, descriptions, etc. Properties must be public and browsable.

Protected virtual function "SetExtendedInfo", intended to be overridden by the inherited non-user class to set additional root attributes. This function is called by the exported function getDllInfo.

Exported function "setInputCoordinates", used by Visual Signal's ExternalDll module to set input coordinates in the user DLL.

Exported function "setInputDataIm", used by Visual Signal's ExternalDll module to set the input data (imaginary part) in the user DLL.

Exported function "setInputDataRe", used by Visual Signal's ExternalDll module to set the input data (real part) in the user DLL.

Exported function "setInputDescriptors", used by Visual Signal's ExternalDll module to set input descriptors in the user DLL.

Protected function "SetOutputCoords", provided to the user DLL to set the output coordinates.

Protected function "SetOutputDataExtension", provided to the user DLL to set the output data extension info.

Protected function "SetOutputDataIm", provided to the user DLL to set the imaginary part of the output data.

Protected function "SetOutputDataRe", provided to the user DLL to set the real part of the output data.

Exported function "setProperties", used by Visual Signal's ExternalDll module to set property values in the user DLL.

Static utility function "SetXmlField", provided for general use to set a field value in an XML document.

(Deprecated) Protected function "UpdateProperty", provided to the user DLL for updating the current property values. This function is usually invoked in the DoCompute function after the computation stage. This is deprecated. Property values can now be updated like regular C# public properties.

This protected member will be initialized and updated by Visual Signal's ExternalDll module via setInputDescriptors(String), setInputCoordinates(Int32, Int32, Object), setInputDataRe(Int32, Int32, Double), and setInputDataIm(Int32, Int32, Double). The user DLL can directly access the DllData objects to obtain the data descriptor information.

This protected member contains a table of TExternalBaseDllInputType objects which stores the parameters used by the DLL. The table (in the form of a List) should be initialized in Init using AcceptInput().

This protected member should be initialized and updated in the user DLL's DoCompute function to contain the output data (only one allowed).

(Deprecated) This protected member contains a table of TExternalBaseDllProperty objects which stores the parameters used by the DLL. The table (in the form of a Dictionary) should be initialized in Init using RegisterProperty(). This is deprecated. It is no longer necessary to access property object directly. Define and access the properties like any other C# property using appropriate attributes. Properties must be public and browsable.

This protected member contains a table of ExtensionProperty objects which stores the parameters used by the use's DLL, it is not necessary to access this object directly. Use RegisterProperty(String, Type, Object, String, String, String, String, Int32), GetPropertyValue(String), and UpdateProperty(String, Object) functions instead to initialize, get, and set properties.

Set this property in Init to register the infoText of the user module. This will appear in Visual Signal as a tooltip for the DLL.

Set this property in Init to register the license manager ID. If a license manager matching the ID were found, Visual Signal will attempt to use license control for the user module. If the property is not set or set to an empty string, license control will not be used for the user module.

Set this property in Init to register the license name. Visual Signal will attempt to match the license name against any license files loaded by the license manager. If no valid license file matches the license name, then the user module will not be available for use in Visual Signal. For security reasons, the module will also not be available if a license manager matching LicenseManagerID were *not* found.

Set this property in Init to register the minimum number of inputs acceptable by the user DmoduleLL.

Set this property in Init to register the name of the user module.

Set this property in Init to register the version of the user module.