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Readonly content cannot be changed. Libreoffice preventing edits...

Today I opened a document where I had to make a few edits and LibreOffice decided to tell me:

Readonly content cannot be changed.
No modifications will be accepted.

There is a screenshot of that message:

Error message: Readonly content cannot be changed. No modifications will be accepted.

The error may be justified, I do not know, but apparently not too many people know how to unlock a document. I found pages and pages that tell people to check the read/write protection of the file, as if a read-only file on disk could not be updated in the editor... (yes! you cannot write it back, but you can edit it and do a Save As ...)

One person, though, had the correct answer to ...

Doxygen does not generate documentation for my C functions (or any global function)

As I write programs, mainly in C++, I document them using the Doxygen tool. This is a very powerful parser that is capable to finding functions, variables, macros, and many other things in the source code and attach the corresponding documentation to those functions, variables, macros, etc.

This is extremly practical when creating large projects or libraries that you want to share with others.

One problem though, by default it seems like global functions (and thus C functions) and variables do not make it to the documentation, when C++ classes work fine.

There are two potential issues:

...

Prevent shutdown from GUI while using ssh from another computer

Polkit-1

This feature works along systemd and loginctl to create sessions for users and check current statuses defined in rules files. This is supposed to be enough to prevent someone from shuting down a computer from the GUI when an administrator is logged in via SSH.

Thus far, I have not been able to find a way to get that to work for like 1 year. I'm going to put information about my research. Various pages talking about, documentation, etc.

First of all, there is a manual page which is likely already installed on your system:

man pklocalauthority

Now a list of pages I have ...

Changing the Time format in your Thunderbird on Unity (Ubuntu 12.04)

That took me forever because I could not find the place where my Unity icons where to edit them in order to add the necessary LC_TIME definition. This being said, it's relatively easy except that you have no real control over the exact formt, only the locale.

So...

I created a file named starter under my thunderbird folder, if you don't have such (because you're using the stock version of thunderbird) then you may want to create a bin folder as in:

mkdir ~/bin

The starter file is just a text file with a shell script like this:

#!/bin/sh
LC_TIME=en_DK.utf8
export ...

not enough actual parameters for macro min() or max()

As I was porting wpkg to Windows so it would compile under Microsoft IDE version 10, I ran in a problem with variables named min and max. Windows wanted to see them as the min(a,b) and max(a,b) macros.

That started happening when I included Windows.h which I needed for handling files (CreateFileA, CloseHandle, etc.).

Since these are macros, i.e. defined with #define ..., they take priority over anything in your C++ code (since that's handled with your preprocessor.)

One way to get rid of them is to undefine those macros after the #include, something like this:

#include ...

local delete, incoming edit upon update

Today I tried to move an SVN folder to another.

In my first attempt, I tried to copy the folder to a sub-folder that was not in SVN. The result is that the move failed, but nothing seemed to change in the SVN environment.

So I tried again, this time making sure that the destination folder would be an SVN folder.

The second time, however, it failed. The move instruction reported a conflict... Then the svn commit would not work. The SVN system was thinking that I changed something with the first svn mv as the failure did not clear the conflict.

svn mv a tmp/a-1.x        # fails saying tmp/ ...

The certificate is not trusted because it is self signed.

Connection problem with Shredder

Today I got a little surprised by Shredder (the base used to build Thunderbird.)

Somehow, the certificates for my mail server had reached maturation (i.e. it was showing an end date as of today.)

On each connection to the server I would get the following error:

<name>: uses an invalid security certificate
The certificate is not trusted because it is self signed.
(Error code: sec_error_ca_cert_invalid)

Interestingly enough, I search on this error and mainly found things about FireFox and SeaMonkey instead of Thunderbird (and nothing about

Deleting a database in Synergration

Synergration AccessBooksRT is a tool we use to get a copy of QuickBooks tables in an MS-Access database.

It works great for our purpose and transformed some super sluggish forms into lightning fast forms. We still use QODBC for some of the work (updates) but 99% now goes through the database generated by Synergration instead.

PHP CLI Segmentation Fault with pgsql

Somehow, whenever I tried PHP CLI, it would crash because of PostgreSQL. (i.e. if I use the database in PHP through Apache, no problem, but the same script run via the command line, and it crashes on exit, no matter what I do with the resource handle.)

I was puzzled and did not really know what to do, but some people have found the solution. Now, what is really surprising is the fact that it has been around for ages and not yet fixed in the system.

The fact is, it does not matter too much as long as there is a work around, but you need to apply it yourself...

My customer cannot edit pages?!

I created a website and handed it to a customer... without realizing that the customer could not edit the pages of his site.

He reported the problem and I was rather surprised since I had not installed any module that would protect the editing of pages based on a role... what could it be? I checked the Drupal permissions a couple times... he had the right to edit all the nodes, his own and anyone else's, hmmm...

I looked at the code to try to figure it out, and there is a call to the filter module: filter_access($node->format).

Yes! Of course! I had forgotten to add his role to the ...

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