Recently，I need to realize a little function in MFC by C++ which is used to get a list of available serial ports. And then I saw this. I need to know what is SetupAPI1 and SetupAPI2? Where can I get the setup.dll when I wanna use this way to realize my function?. During searching the Internet I found there is a SetupAPI but it seems another one. Now, I am really confusing by these SetupAPI, SetupAPI1, and SetupAPI2. What are the differences? Where are they come from? And, how can I get them if I wanna to use these?
There is no such think as SetupAPI1 and SetupAPI2. There is a library named SetupAPI.
This answer you link to refers to a library named EnumSerialPort. From that page:
Internally the code provides 9 different ways (yes you read that right: Nine) of enumerating serial ports: Using CreateFile, QueryDosDevice, GetDefaultCommConfig, two ways using the Setup API, EnumPorts, WMI, Com Database & enumerating the values under the registry key HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\SERIALCOMM.
...
All of the configuration of the code is controlled by the following preprocessor values: CENUMERATESERIAL_USE_STL, _AFX, NO_ENUMSERIAL_USING_CREATEFILE, NO_ENUMSERIAL_USING_QUERYDOSDEVICE, NO_ENUMSERIAL_USING_GETDEFAULTCOMMCONFIG, NO_ENUMSERIAL_USING_SETUPAPI1, NO_ENUMSERIAL_USING_SETUPAPI2, NO_ENUMSERIAL_USING_ENUMPORTS, NO_ENUMSERIAL_USING_WMI, NO_ENUMSERIAL_USING_COMDB & NO_ENUMSERIAL_USING_REGISTRY.
This library presents two different methods that rely on SetupAPI, and simply numbers them one and two. You can see these details and more by following the links.
Related
I want to connect several webservices that share common object types. Using the internal tool from VS in the GUI: Add Service Reference… is not an option because it leads to several definitions of the same class types because of the different namespaces.
I tried the command line wsdl:
wsdl /sharetypes /language:CS /namespace:MyNameSpace /out:references.cs /protocol:SOAP http://AddressWS1?wsdl http://AddressWS2?wsdl http://AddressWS3?wsdl
this works, but I am a bit confused because I am used to work with the “app.config” file that does not exist here.
I also tried:
svcutil.exe /language:cs /out: references.cs /config:app.config http://AddressWS1?wsdl http://AddressWS2?wsdl http://AddressWS3?wsdl
it does not work as I get several errors of the type: “The global element xxx has already been declared.”
Is there a better solution?
Thanks for your help
Just because they appear to you (the developer) as the same shapes, the fact that they are in different namespaces, means that they ARE actually different and must be treated as such.
It's entirely possible that if you get your idea to work, one of the WebServices then decides to add another field to its response, but not the others, and then you have to split them again.
I'm trying to write some complex Starlark rules that link and build multiple dynamic libraries on Linux using the (relatively) new cc_common APIs.
There seems to be 2 different ways you can create compile/link actions using this API:
Using the compile()/link() methods, which are relatively "high-level", and
Using the create_compile_variables()/create_link_variables() along with get_memory_inefficient_command_line() and then calling actions.run() directly with the generated command line.
In particualr, I'm trying to get #2 to work. My question is, how can I create the param_file to pass into create_link_variables? There doesn't seem to be any Starlark API for this.
https://docs.bazel.build/versions/1.1.0/skylark/lib/cc_common.html#create_link_variables
agoessling I have shared a couple of source files for you here
It should give you a pretty good idea of how this lower level cc_common API can be used end to end.
There are still known holes in this API, i.e. not everything possible with the built-in cc rules also possible through cc_common, but I would say 90% is available.
I am not associated with the Bazel team and the code is the result of my own digging and sniffing. No warranties, but it works for me. Let me know if you get stuck on something - I will try to help.
If you get an idea of how to do some of it better (prettier, more compatible with the built-in rules, more platform-independent, etc.) I am all ears. Good luck!
I'm building a barebones Notepad-styled project (console-based, does not have a GUI as of now) and I'd like to track, display (and later use it in some ways) the number of times the console application has been launched. I don't know if this helps, but I'm building my console application on Windows 10, but I'd like it to run on Windows 7+ as well as on Linux distros such as Ubuntu and the like.
I prefer not storing the details in a file and then subsequently reading from it to maintain count. Please suggest a way or any other resource that details how to do this.
I'd put a strikethrough on my quote above, but SO doesn't have it apparently.
Note that this is my first time building such a project so I may not be familiar with advanced stuff... So, when you're answering please try to explain as is required for a not-so-experienced software developer.
Thanks & Have a great one!
Edit: It seems that the general advice is to use text files to protect portability and to account for the fact that if down-the-line, I need to store some extra info, the text file will come in super handy. In light of this, I'll focus my efforts on the text file.
Thanks to all for keeping my efforts from de-railing!
I prefer not storing the details in a file
In the comments, you wrote that the reason is security and you consider using a file as "over-kill" in this case.
Security can be solved easily - just encrypt the file. You can use a library like this to get it done.
In addition, since you are writing and reading to/from the file only once each time the application is opened/closed, and the file should take only small number of bytes to store such data, I think it's the right, portable solution.
If you still don't want to use a file, you can use windows registry to store the data, but this solution is not portable
Basically, I want to be to be able to pass data between Excel cells and
my C++ program. I don't have any experience in Excel/C++ interactions and I haven't been able to find a coherent explanation or documentation on any websites. If someone could link me some references or provide one themselves it would be much appreciated. Thanks.
If this is for a Windows system, you could always use one of the available managed Excel libraries, such as OfficeWriter or Aspose.
There also might be similar libraries specifically for c++, I know we (OfficeWriter) used to make one.
Edit: Looks like there are a few out there, like LibXL and BasicExcel.
If the application will run on an end user machine with Excel installed, you can easily use the Excel interop and keep Excel hidden.
In addition to LibXL and BasicExcel mentioned by smoore, there is:
ExcelFormat Library is an improved version of the BasicExcel library and will allow you to read and write simple values. It is free.
xlslib will also read and write simple values, I have not tried it tho. It is also free.
Number Duck, is a commercial library that I have written, It supports reading and writing values, formulas and pictures. The website has examples of how to use the features.
I want to programmatically download symbols from the micrsoft symbol server (http://msdl.microsoft.com/download/symbols).
E.g. given the name "ntdll.dll" I want to save the .pdb into any directory.
The APIs from dbghelp.dll seems to solve this. (http://msdn.microsoft.com/en-us/library/windows/desktop/ms679291%28v=vs.85%29.aspx)
But I don't know how to use them in a right way.
Does anyone did something like this before and can show me some example code?
thanks!
I never did something exactly like this, but I was intrigued enough to look. Your friends are the SymXxx functions, within dbghelp.dll.
Start with SymSetOptions followed by SymInitialize.
Then, the function that does the heavy lifting of the work is SymFindFileInPath. The second arguments (SearchPath) is a semicolon-separated search path, that may include SRV*.
The utility that does exactly what you want (pretty much, with nothing less and nothing more) is symchk.exe. Take a look at its imports table, notice it uses no more than 9 functions from dbghelp (and no 'networking' DLL such as winhttp or the like) - so that should give you a good clue how to proceed, and which methods you should use.