Loading HTML from a .res file - html

Using VS2005/2008 as a resource editor, one of the options in the Add Resource dialog is HTML: it appears to allow me to embed HTML file(s) into a resource (res) file. Does anyone know how to grab the HTML (as a string) from VB6 code? The LoadResData appears to be close to what I'm looking for but the problem is there isn't a HTML format defined in the table of formats (in that documentation link).

In Win32 C headers a resource format constant is defined called RT_HTML, it has the value 23. It should be possible to load the HTML resource type. Additionally you can verify the resource type number by looking at the built exe file with Resource Hacker. It lists the resource format types and resource IDs embedded in the file.

here is a good tutorial in c++ http://www.rohitab.com/discuss/index.php?showtopic=15281
you can probably adapt the code(usually function names are the same for win32 routines search on msdn.microsoft.com for documentation) or search the website for a VB example

Related

How to enable "Go to declaration" from typescript to json (i18next)

Im working on a project that uses i18next with react and typescript, where translationkeys are defined in .json files.
One drawback of switching to json for the translation files, is that we can no longer use the intellij idea "Go to declaration" or ctrl + left-click feature, to quickly navigate from a key usage in typescript, to its declaration in the json file.
Is there any way to enable this without requiring all developers to download some third-party intellij plugin?
I've googled for hours for any information about this.
I've made a d.ts file to enable strong typing for where translationkeys are used. What strikes me as odd is that intellij/typescript is able to know when a key doesent exist and warns about it, but at the same time doesent know "where" that key exists whenever i type a correct key.
I also set resolveJsonModule:true in tsconfig, but to my limited understanding it doesent seem relevant.
This is not technically possible because commands like Go To Declaration will look for a declaration in a source code file (think .ts or .js or .d.ts) whereas you want to go ...to its declaration in the json file.
The resolveJsonModule flag won't help you either because as per the docs:
Allows importing modules with a ‘.json’ extension, which is a common practice in node projects. This includes generating a type for the import based on the static JSON shape.
One possible solution is to create a build script to take your .json file and output a .js or .ts file containing the same content, then IDE commands like Go To Declaration will jump to that file.
In summary: you will need some kind of plugin, or a custom build script.
DISCLAIMER: I don't use i18next or react, this answer is based on my understanding of both TypeScript and the JetBrains Rider IDE (which is like IntelliJ).

How can I get a list of help context IDs used in a CHM help file?

I have a C++ program that calls AfxMessageBox, passing in a help file context ID. When I click Help on the resulting message box, I get a litte error box that says "Failed to launch help." I need to verify that I'm using a valid help ID. Is there a way to examine a CHM file to find out what context IDs are valid for it? Either a commercial tool or a way to write a C# or C++ or even Python program to do it.
Edit: This is an old CHM file, and I do not have the files that were used to create it. I used 7-zip to extract its contents into a folder, but I see nothing there that tells me what context IDs the file has. When the error occurs, the C++ code assigns a value of 135 to the error, and then it adds 0x30000 (196,608) to that for no reason I know. Then, when the message box gets generated, 0x30000 is subtracted and the result, 135, is passed in to AfxMessageBox() as the help ID. I've tried both 135 and 196743 (0x30000 + 135) in the AfxMessageBox() call but neither has worked. The files extracted from the help file by 7-Zip include a set of .htm file with numbers for names, but the numbers have no relation to the context IDs that I can find.
There is another execution path in my code that uses the same help file. As near as I can tell, it uses low-level functions to create a dialog box that resembles the output of AfxMessageBox(). When I force that code path use context ID 196743, I get the expected help page. Unfortunately, it's not easy to get from the code that doesn't work to the code that does.
Edit:
Your additional Edit in the question take me back many years. Not related to your original question but some links to read:
Starting with HTML Help
Adding HTML Help to Existing Dialog-Based Application
Extracting help contextID by code you must have deep knowledge of the CHM internals.
For a single value e.g. 10000 you may want to test the contextID using PowerShell or a DOS prompt. This opens the requested .chm in the Help viewer, and uses a context ID to request a URL to display.
hh.exe -mapid 10000 ms-its:CHM-example.chm
Sometimes you only have the CHM output file and nobody can locate the source files. It’s not always possible to recover all files and data you need.
Decompiling loses the alias.h and map.h files and their information for F1-Help (context sensitive help).
You may know a CHM is something like a zipped web (HTML archive) with some additional system files of metadata. Context ID's are mostly integrated by compiling a alias.h and map.h file. The purpose of the two files is to ease the coordination between developer and help author. The mapping file links an ID to the map number - typically this can be easily created by the developer and passed to the help author. Then the help author creates an alias file linking the IDs to the topic names (See: Creating Context-Sensitive Help for Applications.
I'm using FAR HTML as a toolbox full of various authoring, file and HTML utilities (Disclaimer: It is freeware now!).
Please note there is a download link (for required Microsoft HTMLHelp Workshop) because the Microsoft download links are broken.
The CHM can be opened using FAR HTML and by copy and paste you have all ID and topic information (ALIAS section). In Help File Explorer you need to open Internal Files > #IVB.

How to make an F# JSON type provider sample available for test project?

I am using an F# JSON type provider to create a type from a reference JSON document. The reference document "ReferenceItem.json" is part of the F# library. In addition I have a unit test project which tests the library. I am struggling with making the reference document available for the test project without duplicating it.
No matter how I mark "ReferenceItem.json" in Visual Studio (Content, None, Copy to Output etc.) my test project fails to compile because the statement JsonProvider<"ReferenceItem.json"> expects "Reference.json" to be present in the project source folder at compilation time. Including it as a linked item from the library project doesn't help: it's not copied at compile time to the test source folder. So I need to make a duplicate copy of the file in the test project.
I noticed that in F# projects I can mark files as "DesignData" or "DesignDataWithDesignTimeCreatableTypes", but I wasn't able to figure out how I can use them.
This is a tricky problem - when F# compiler references the library, it will invoke the type provider and so the type provider needs to be able to access the sample.
The easiest solution is to just always copy the sample json file so that it is in the folder from where the application is starting. This is obviously sub-optimal, and so we have another way of handling this using resources.
See the "Using JSON provider in a library" section of the documentation. The idea is that you can embed the sample document as a resource in the library and specify the resource name as an additional parameter:
type WB = JsonProvider<"../data/WorldBank.json",
EmbeddedResource="MyLib, worldbank.json">
This will then load the resource when using the library (but it still needs the file name in the original compilation mode). This is still somewhat experimental, so please open an issue on GitHub if you cannot get it to work!

Get HTML file produced by JavaDocs

I understand that Javadoc is a documentation generator from Sun Microsystems for generating API documentation in HTML format from Java source code.
I infer that the documentation is stored onto an HTML file.
Is there a way I can access it?
If yes where is it stored?
The word Javadoc can refer to
special comments in Java source files (preceding a declaration, and of the form /** ... */)
a program which converts these comments (as well as the declarations themselves) to readable output
the output itself, usually in HTML form.
The Javadoc program is contained in Sun's (or now Oracle's) Java Development Kit (JDK).
If you have installed a JDK (which you should if you do Java development), you can call it on the command line, passing it the package names to document, or some source file names. You should also indicate the output directory, using the -d option.
I'm assuming the following directory (and package) structure in my example below:
current directory
source
de
dclj
paul
examples
HelloWorld.java [containing package de.dclj.paul.examples; and public class HelloWorld { ... }]
docs
Then you use the following command line:
javadoc -sourcpath source -d docs de.dclj.paul.examples
It will then create a the documentation in the docs directory, with an index.html which you can open in your web browser, and other files reachable from it.
For more details have a look at the documentation linked above. For an example output, have a look at the Java Standard API Javadoc.
If you are using an IDE, you likely have a generate Javadoc button there, and the IDE might even show the formatted output of documentation of single classes or methods on the fly.

Packing a file into an ELF executable

I'm currently looking for a way to add data to an already compiled ELF executable, i.e. embedding a file into the executable without recompiling it.
I could easily do that by using cat myexe mydata > myexe_with_mydata, but I couldn't access the data from the executable because I don't know the size of the original executable.
Does anyone have an idea of how I could implement this ? I thought of adding a section to the executable or using a special marker (0xBADBEEFC0FFEE for example) to detect the beginning of the data in the executable, but I do not know if there is a more beautiful way to do it.
Thanks in advance.
You could add the file to the elf file as a special section with objcopy(1):
objcopy --add-section sname=file oldelf newelf
will add the file to oldelf and write the results to newelf (oldelf won't be modified)
You can then use libbfd to read the elf file and extract the section by name, or just roll your own code that reads the section table and finds you section. Make sure to use a section name that doesn't collide with anything the system is expecting -- as long as your name doesn't start with a ., you should be fine.
I've created a small library called elfdataembed which provides a simple interface for extracting/referencing sections embedded using objcopy. This allows you to pass the offset/size to another tool, or reference it directly from the runtime using file descriptors. Hopefully this will help someone in the future.
It's worth mentioning this approach is more efficient than compiling to a symbol, as it allows external tools to reference the data without needing to be extracted, and it also doesn't require the entire binary to be loaded into memory in order to extract/reference it.