[Name] DIRNAME_SRC

[Description] This creates a text box where the user may enter the absolute path
              for a folder. If the button is pressed, a folder picker dialog
              appears and the user is able to pick a folder from there.
              
              DIRNAME_SRC is meant to be used in source context (as opposed to DIRNAME).


In a Transformer (*.fmx) File

   Syntax

      PARAMETER_NAME: <macroName>
      PARAMETER_TYPE: DIRNAME_SRC
      PARAMETER_PROMPT: <label>
      PARAMETER_DEFAULT: [<defaultValue>]

   Example

      PARAMETER_NAME: SourceDataset
      PARAMETER_TYPE: DIRNAME_SRC
      PARAMETER_PROMPT: Source CSV Folder:
      PARAMETER_DEFAULT:


In a Reader/Writer (*.fmf, *.fmi) File

   Syntax

      [DEFAULT_VALUE <macroName> <defaultValue>]
      GUI DIRNAME_SRC <macroName> <label>

   Example

      GUI DIRNAME_SRC SourceDataset Source CSV File Folder: