What does 'Unsupported variant type: xxxx (0xxxxx)' mean ?
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10.9 PHP and COM
10 FAQ : Foire Aux Questions
 Manuel PHP
.  I have built a DLL to calculate something. Is there any way to run this DLL under PHP ?
.  What does 'Unsupported variant type: xxxx (0xxxxx)' mean ?
-> Is it possible manipulate visual objects in PHP ?
.  Can I store a COM object in a session ?
.  How can I trap COM errors ?
.  Can I generate DLL files from PHP scripts like i can in Perl ?
.  What does 'Unable to obtain IDispatch interface for CLSID {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}' mean ?
.  How can I run COM object from remote server ?
.  I get 'DCOM is disabled in C:\path...\scriptname.php on line 6', what can I do ?
.  Is it possible to load/manipulate an ActiveX object in a page with PHP ?
.  Is it possible to get a running instance of a component ?
.  Is there a way to handle an event sent from COM object ?
.  I'm having problems when trying to invoke a method of a COM object which exposes more than one interface. What can I do ?
.  So PHP works with COM, how about COM+ ?
.  If PHP can manipulate COM objects, can we imagine to use MTS to manage components resources, in conjunction with PHP ?

10.9.3 Is it possible manipulate visual objects in PHP ?

Generally it is, but as PHP is mostly used as a web scripting language it runs in the web servers context, thus visual objects will never appear on the servers desktop. If you use PHP for application scripting e.g. in conjunction with PHP-GTK there is no limitation in accessing and manipulating visual objects through COM.

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What does 'Unsupported variant type: xxxx (0xxxxx)' mean ? PHP and COM Can I store a COM object in a session ?