Difference between revisions of "Calc Tips"
From FM Plugin Wikipedia
(Added ExprEnv class methods) |
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| − | + | The DataVect and ExprEnv classes are how your plug-in interacts with the calculation engine. | |
=DataVect Public Functions= | =DataVect Public Functions= | ||
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| + | The DataVect class is a simple vector of Data objects. FileMaker passes a DataVect to your plugin call that holds the arguments supplied to the external function. | ||
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*[[ulong Size () const]] | *[[ulong Size () const]] | ||
*[[void Clear ()]] | *[[void Clear ()]] | ||
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=ExprEnv Public Functions= | =ExprEnv Public Functions= | ||
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| + | The ExprEnv class allows your plugin to interact with the calculation engine, it can evaluate FileMaker expressions and SQL, and there are methods to dynamically register / unregister external functions. | ||
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*[[errcode Evaluate ( const Text &expression, Data &result ) const]] | *[[errcode Evaluate ( const Text &expression, Data &result ) const]] | ||
*[[errcode ExecuteSQL ( const Text &expression, Data &result, ushort colSep, ushort rowSep ) const]] | *[[errcode ExecuteSQL ( const Text &expression, Data &result, ushort colSep, ushort rowSep ) const]] | ||
Latest revision as of 04:45, 17 August 2007
The DataVect and ExprEnv classes are how your plug-in interacts with the calculation engine.
DataVect Public Functions
The DataVect class is a simple vector of Data objects. FileMaker passes a DataVect to your plugin call that holds the arguments supplied to the external function.
- ulong Size () const
- void Clear ()
- bool IsEmpty () const
- void PushBack ( const Data &data )
- Data *PopBack ()
- const Data &At ( ulong position ) const
- const Text &AtAsText ( ulong position ) const
- const FixPt &AtAsNumber ( ulong position ) const
- const DateTime &AtAsDate ( ulong position ) const
- const DateTime &AtAsTime ( ulong position ) const
- const DateTime &AtAsTimeStamp ( ulong position ) const
- bool AtAsBoolean ( ulong position ) const
- const BinaryData &AtAsBinaryData ( ulong position ) const
- void operator delete ( void *obj )
ExprEnv Public Functions
The ExprEnv class allows your plugin to interact with the calculation engine, it can evaluate FileMaker expressions and SQL, and there are methods to dynamically register / unregister external functions.
- errcode Evaluate ( const Text &expression, Data &result ) const
- errcode ExecuteSQL ( const Text &expression, Data &result, ushort colSep, ushort rowSep ) const
- errcode RegisterExternalFunction ( const QuadChar &pluginId, short functionId, const Text &functionName, const Text &functionPrototype, short minArgs, short maxArgs, ulong typeFlags, ExtPluginType funcPtr )
- errcode UnRegisterExternalFunction ( const QuadChar &pluginId, short functionId )
- operator delete ( void *obj )
