Returns the value of a component property that is a string type.
GetStrProp utilises Delphi's RTTI (Run Time Type Information) to return the current value of a component's property where that property is a String, LongString or WideString type. An empty string is returned if the property is not of this type.
In the other form of this function, the name of the property, PropName, is explicitly given.
In both forms of the function, the current value of the property is returned as a string.
The intrinsic value of this function is to allow retrieval of component properties without the need to hard code the property name. This allows mass visual component processing at run time.
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