| RE: where to locate DLL in Eclipse (RE: [cdt-dev] Windows Registr y Access) |
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Yes, there is a lot of magic to this.
System calls on the class loader, which in this case is a special class loader
provided by Eclipse. The Eclipse class loader then looks in the
os/<os>/<arch> directory for the library. What I’m not clear
on is how System knows which class loader to call and I’m not sure how
Eclipse knows which plugin or fragments to look in. But it seems to be based on
where the loadLibrary call originates. All I know for sure is that it works and
in our case with the loadLibrary call in cdt.core and the DLL in the
cdt.core.win32 fragment. Hope this helps, Doug Schaefer, QNX Software Systems Eclipse CDT Project Lead, Tools PMC member From:
cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of Ling.5.Wang@xxxxxxxxx Hi, Doug, As to this line in
WindowsRegistry.java System.loadLibrary("winreg"); How does it know to get
the winreg.dll
from "c:\eclipse\plugins\org.eclipse.cdt.core.win32_xxx\os\win32\x86"
? As that folder is usually not in the PATH, does Eclipse have its own
way of specifying the DLL location ? by a java vm option ? Thanks. -- Ling From:
cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of ext Doug Schaefer Hey gang, I have implemented a utility to get at the Windows registry
in a class called WindowsRegistry (of course) in the cdt.core. Right now
I’ve only implemented access to HKEY_LOCAL_MACHINE. But it’s a
simple matter to add other ones. I have also only implemented read-access. We
could do write as well but there are better Eclipse ways of doing such things
(e.g. preference scopes). The idea is to find out install information for various
tools that we need to integrate with, e.g. cygwin, mingw, msvc. Please feel
free to make use of it where you can. One good place is the cygwin entry in the
PATH variable for managed build where we currently do a shell call to regedit. Doug Schaefer, QNX Software Systems Eclipse CDT Project Lead, Tools PMC member |