[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'Variants' (#rtl)

GetPropValue

Return a property value as a variant

Declaration

Source position: variants.pp line 345

function GetPropValue(

  Instance: TObject;

  PropInfo: PPropInfo;

  PreferStrings: Boolean

):Variant; overload;

Arguments

Instance

  

Instance from which to get property value

PropInfo

  

Pointer to propety information (RTTI)

PreferStrings

  

Try to cast to string

Function result

Property value as variant

Description

GetPropValue returns the value of the property described by PropInfo from the Instance. The property value is returned as a variant type.

when PreferStrings is true, the implementation will tend to cast to a string-valued variant when a conversion must be done.

This function is used as the value for the TypInfo unit's OnGetPropValue callback. This callback is automatically initialized with the function when the variants unit is used.

See also

TypInfo

  

Access Run-Time Type Information (RTTI)

TypInfo.OnGetPropValue

  

Callback to get a property value as a variant.

SetPropValue

  

Set a property value as a variant


Documentation generated on: Jun 22 2020