_Imported from Trac. This issue originally by _agoode* at 2008-11-20T14:32:15Z.*

ws_open is slow, there should be some mechanism for monitoring open progress. Or just make ws_open fast?

Original email:

The proposal:
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Please create an iterative loading process for the Wholeslide library that adds these two functions:

ws_open_setup()

ws_open_iterative( .., &float progress ) returns -1 when failed, 0 when
complete, ranking 0-1 floating point approximating progress through files based on lines/total filesize estimates

ws_open_end() if necessary, but might not be

This way I can create a process bar animation occurring during the initial
examination process by running this in a thread before triggering the Viewer widget.