Progress on piloting Jmol from Visual Basic (VB)via WebBrowser
Considering the framework:
VB - HTML elements - Jmol functions
I switched to VB.NET for further testing, as that is the modern system,
and the few fragments of information concerning data retrieval were
relative to the NET system.
After much time spent on “formatting”, the following give signs of life.
VB to Jmol:
WebBrowser1.Document.InvokeScript("jmolScript", {"load heme.pdb"})
Jmol to VB (info retrieval)
StringA = WebBrowser1.Document.InvokeScript("jmolEvaluate", {"5 + 6"})
StringA = WebBrowser1.Document.InvokeScript("jmolGetPropertyAsString",
{"atomInfo", "atomno=1"})
StringA = WebBrowser1.Document.InvokeScript("jmolGetPropertyAsString",
{"fileName"})
This is good news, although first attempts at recovering an array did
not work.The methods requiring explicit code for “callback” or “common
functions” are apparently not necessary.
Curious, I went back to VB6 to try again the component that failed (Jmol
to VB)
This did work:
StringA = WebBrowser1.Document.parentWindow.jmolEvaluate("3 + 5")
But similar commands using GetProperty did not:
StringA =
WebBrowser1.Document.parentWindow.jmolGetPropertyAsString("FileName")
returns “zapped”
StringA =
WebBrowser1.Document.parentWindow.jmolGetPropertyAsString("atomInfo",
"atomno=1")
returns “*Vector[0]”
further remarks (tested with NET)
a) There is a timing problem. If I load “Mb” then run a subroutine with
load “heme” followed
by jmolGetPropertyAsString("FileName"), it returns the “Mb” name. A
repeat of the sub correctly returns “heme”
b) jmolGetPropertyAsString("atomInfo", "atomno=1") is ok for Mb, but
null for heme
c) I wanted to try jmolGetPropertyAsString of the Spin state (on or off)
but could not find it.
In conclusion, this seems to work.
Michael
E-mail: michael.mar...@inserm.fr
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