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Topic: Accessing the registry: 32 and 64 bit? (Read 1420 times) |
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g3nrw
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Accessing the registry: 32 and 64 bit?
« Thread started on: Dec 15th, 2013, 08:46am » |
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Richard
There are several references and code snippets in the BB4W documentation that describe how to read/write the Windows Registry.
I am working on a new program that needs to do this. Will the "RegCreateKeyEx" and "RegOpenKeyEx" methods work with both 32 and 64-bit Windows?
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Ian
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admin
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Re: Accessing the registry: 32 and 64 bit?
« Reply #1 on: Dec 15th, 2013, 09:49am » |
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on Dec 15th, 2013, 08:46am, g3nrw wrote:| Will the "RegCreateKeyEx" and "RegOpenKeyEx" methods work with both 32 and 64-bit Windows? |
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Yes - how else could 32-bit applications (vast numbers of which access the registry) run in 64-bit Windows otherwise? Obviously your program will only 'see' the 32-bit registry, so if you're trying to find your registry entries using (for example) the 64-bit version of REGEDIT you will need to look in the relevant WoW6432Node section.
Richard.
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g3nrw
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Re: Accessing the registry: 32 and 64 bit?
« Reply #2 on: Dec 15th, 2013, 10:43am » |
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on Dec 15th, 2013, 09:49am, Richard Russell wrote:if you're trying to find your registry entries using (for example) the 64-bit version of REGEDIT you will need to look in the relevant WoW6432Node section.
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WoW6432Node: that's the key word I was looking for. My program needs to access the registry entries of someone else's 64-bit program. More homework needed.
Thanks Richard
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Ian
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admin
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Re: Accessing the registry: 32 and 64 bit?
« Reply #3 on: Dec 15th, 2013, 12:47pm » |
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on Dec 15th, 2013, 10:43am, g3nrw wrote:| My program needs to access the registry entries of someone else's 64-bit program. |
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In that case you will need this information:
http://msdn.microsoft.com/en-us/library/windows/desktop/aa384129.aspx
You should not reference 'WoW6432Node' from code.
Richard.
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g3nrw
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Re: Accessing the registry: 32 and 64 bit?
« Reply #4 on: Dec 15th, 2013, 2:19pm » |
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on Dec 15th, 2013, 12:47pm, Richard Russell wrote:
That's more like it. Thanks again Richard.
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Ian
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