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widget_control from call_external

Hello all,

  anybody have a hint on this?

  I have a c/c++ programme that is called from within a 
  widget hierachy via call_external.

  As the computations made take fairly long, I want to update 
  a status bar with a 'Percentage complete' from the C-routine,
  so the user doesn't get upset and thinks the programme died 
  on him/her.

  How do I go about that???


Dipl. Phys. Dominic R. Scales | Aero-Sensing Radarsysteme GmbH
Tel:  +49 (0)8153-90 88 90    | c/o DLR Oberpfaffenhofen
Fax:  +49 (0)8153-908 700     | 82234 Wessling, Germany
WWW:  aerosensing.de          | email: Dominic.Scales@aerosensing.de

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