Write to registry

[DGRL]

Dear coders

After searching on Google and forums like this one, there is no other choose for me to post my question here.

Is it possible to write to the windows registry and write the following key types

1. REG_EXPAND_SZ

2. REG_MULTI_SZ

3. REG_QWORD

4. REG_BINARY

I know how to write REG_SZ and REG_DWORD

[roland.r71]

You'll need Acet (AutoCAD Express Tools), afaik, for reading/writing registry keys.

(acet-reg-del <key> [<name>])	Delete key or value from Registry.	ACET
(acet-reg-get <key> [<name>])	Return value from Registry.	ACET
(acet-reg-prodkey)	Return current product key.	ACET
(acet-reg-put <key> [<name> <value>])	Write a Registry key or value.	ACET
(acet-reg-setactivex alst)		ACET2
(acet-reg-tree-get keypath key)		ACET
(acet-reg-tree-set keypath lst)		ACET

For your request that would be:

(acet-reg-put key [name value])

Write a Registry key or value.

Arguments
key: Key name to use. 
name: If given, value name to write. 
value: If given, value to assign to name. 

Return Values
T on success. 

However: It doesn't say anything anywhere about different key types.

Edit:

Did a quick search, & There's some vl functions doing the same

vl-registry-write (val-name val-data)

But it too doesn't mention types. (are you sure it even matters?)

[DGRL]

hi @roland.r71

Thanks for the reply

This seems to be a partly solution as you NEED express tools to be installed for this

I am hoping to find a way to do this without the use of 'extra installed' express tools

vl-registry-write is not able to do this afaik

[DGRL]

@roland.r71

Well it matters only if you need to write specific data to the reg that requires to use that kind of key

(vl-registry-write)  can only write REG-SZ and REG_DWORD.

[_gile]

Hi

As far I know this is not possible simply because AutoLISP does not know types like 64 bits integers, binary data or unexpanded references to environment variables.

[DGRL]

@_gile 

Thanks for the reply and thanks for this info

Will look for other ways to achieve this.

[roland.r71]

Just a thought:

If there is a way to execute a .reg file from acad, you could just write your own using lisp & execute.

So, instead of writing straight to the registry, you write a text file (myRegKeys.reg) & import that into the registry. I know the first part is relatively easy, but i'm not sure if you can import the .reg file into the registry from acad/lisp. (otherwise: a double click inwindows file explorer is enough to import the data)

[DGRL]

@roland.r71

The execution of the .reg needs to be done without user approval and i do not know if that is possible

Have to test this

Thanks for the idea.

[dgorsman]

If users have restricted rights that will apply to calls to (vl-registry-write...) as well.

If they do have appropriate rights, this sounds like the perfect job for a dotNET DLL.  Define a couple of extra LISP functions with extra arguments for the other data types.