loading file without whole path visual studios 2012 - visual-c++

I am writing a program in Visual Studio 2012. I am using Windows Imaging component I want to put image files for my program to use without them being resources. I want to make them download with the program when someone downloads it.
So my problem is if I specify the direct path in the program say:
C:\Users\Billy\Documents\Background.
How would I do that without having to specify Users\Billy\Documents. Since it will be different on others computers.

Call SHGetFolderPath to get any of the user-dependent path names. Then concatenate the file name to the retrieved path.

Related

How can I detect the names of files in a folder in Visual C++?

I have a folder that is containing text files (.txt). In my application I must read all files from this folder. But I don't know the names of these files and how many files in the folder. My application is C++ console application in MS VS 2013 without MFC support and without BOOST. Is there any function in Visual C++ that allows to detect the names of the files placed in specified folder and returns these file names? For example the name of the folder is SomeFolder. I'll be very much obliged to you for help.
There are multiple ways of enumerating files within a folder such as WinAPI32 (FindFirstFile & FindNextFile) or MFC (CFileFind class).
The following are examples of either way:
How to get list of files in a directory programatically
Recursive file search using C++ MFC?

MSBuild error "CSC : error CS2001: Source File 'x' could not be found" with Linked Files after upgrading to Visual Studio 2012

After automatically upgrading the project file for a .Net 4.0 web application to work with Visual Studio 2012 everything worked ok at first however when compiling I got lots of errors like this:
Description : Source File '..\..\..\..\..\File Path' could not be found
File : CSC
And when trying to build using MSBuild (passing just the project full path, with no additional parameters) in the "Developer Command Prompt for VS2012" I got basically the same errors:
"CSC : error CS2001: Source File 'x' could not be found"
All errors refer to Linked Files (aspx,cs,etc) located in other web applications projects located at a different deep in our code Branch (that's why all the '....\' at the beginning of the paths)
To me it looks like a problem with the file Length, I had the same problem a while ago when building the projects on our CI server using MSBuild, I was able to manage it by manipulating the project files before building them using a custom script without the need to move the branch around or reduce the deep of the projects, I didn't have to move anything, the important thing at the time it was that developers using Visual Studio 2010 could compile everything without problems. I learned by this that compiling/Building with MSBuild was different that with DevEnv/VS, and for example MSBuild didn't support building Setup projects and DevEnv did.
Since this is happening now with VS 2012/DevEnv 2012 , plus that VS 2012 doesn't support setup projects anymore (like msbuild), plus VS/DevEnv have the same problem with the file length, it looks like VS 2012 its finally using msbuild under the hood or are more tightly integrated, however I didn't find any article to confirm this.
Changing the branch structure/changing the deep of the projects it’s not an option right now due to several reasons (large code base, high number of projects, risk, timing, effort, etc.).
Does someone have an alternative solution or a fix for this issue in Visual Studio 2012?
Regards,
P.D.: BTW I already checked this post MSBuild error with linked files but like I said before changing the paths its not an option right now.
Try getting the Build Logs,
http://msdn.microsoft.com/en-us/library/vstudio/ms171470.aspx
it seems that csc task could not find the source file. One cause it you import the wrong file.
so you have to edit the project file via normal Text Editor.
I found a solution to this issue, when you linked the file, you relative path is recognized by msbuild and go back from there it become your path in a long path however you can change it in the project definition doing right click/unload the project/ and change the path from ../../../ to $(SolutionDir)/../.. until find the file to link, note: it's extend the character from 255 to 300 character.
Check that you have the latest version of the linked files from the other projects. Visual Studio will NOT automatically get them if they belong to another project.
Check that the linked paths are indeed correct. You can monitor what files VS.NET and MSBUILD are trying to access with the help of the SysInternals ProcMon tool (filter on process names and filter out all successes)
If you suspect that the path length is the problem (this will also be visible in the ProcMon tool), you can try to shorten them by linking to the absolute path (C:\X\Y\Z) instead of a relative path (......\Z). The location of the linked files can then remain unchanged.
My 2 cents to this problem... In my case, I had a file created in one project (i.e. ConfigModel) and I had a link to this file in another project but when I renamed the file ConfigModel in the first project to LoginModel for example, it didn't rename the link in the second project causing this error to occur.
I know that i did this question a while ago but for what is worth, The approach that we finally went for was:
Locating the files that were reported as too long.
Reduce the full path length of those files, by reducing the length of the name and/or
the length of the container folder or reducing the folder nesting
level. Therefore reducing the full path length.
Update the links of the changed files (re-linking) on the dependant projects.
This solved the problem with Visual Studio 2012 on developers workstations and on our CI/Deploy servers that used MSbuild.
For my scenario this approach was less risky,and implied less effort than moving complete projects/solutions to reduce their folder nesting level or reducing the folder names, and have to update all the references of the dependant project/solutions.
Ok, I hit this and solved it today. I found it by following a msdn tutorial (https://msdn.microsoft.com/en-us/library/ms379563%28v=vs.80%29.aspx) and here's the command that broke for me:
csc /t:library /out:MyCodeLibrary.dll simpleType.cs
Giving me the message
error CS2001: Source file 't:librabry' could not be found
Which worked after changing the original command to the following:
csc /target:library /out:MyCodeLibrary.dll simpleType.cs
I'm not sure why the short version of the /target flag causes this error, but I've not found anywhere else online noting this cause specifically so I wanted to record it here.
This problem arose for me when I reverted to an earlier version of a git repository. Apparently I didn't add the project file to the repo so when it reverted it didn't revert the project file also. What I did to clear it up was to exclude the missing .cs file from the project by clicking on the missing file in the project Explorer. It was easy to find since it was marked with a warning triangle. Then rebuild the entire solution.
Verify whether the files mentioned in the error do not exist in the corresponding folder.
If their non-existence is intentional, edit the .csproj files and remove the reference for those files.
Build again.
I inherited this issue from a project somebody else was working on, in my case was a .cs file supposed to be generated by an Entity Framework .tt template, but for some reason it wasn't, so the compiler was going all CS2001 about that. I had to update the template and manually run it, everything worked after that.

Including files in VS 2012

I want to include a library - I've downloaded it and found exactly four files inside:
.h
.lib
.dll
.def
I've put the header file inside of my project. That's the only thing I did - and the visual throws an error that it cannot open the .lib file.
So I immediately wanted to beg for help on stackoverflow, but I've decided to do a little research first. I've found out that the .dll file should be placed inside of the windows/SYSWOW64 location (for my 64-bit windows 7), I placed it there but VS still displays the same error.
How should I deal with that? Did I missed some step during the "installation"? If so, which ones?
You have to specify the path to the library (*.lib) in your project settings.
(You can put it also into your directory with sources)
The presence of DLL file during build is not required.

How to set up LIBSVM Matlab interface?

I am having problem with implementing LibSVM to MATLAB.
I am using MATLAB R2009a (I also have the latest version, R2012b, but I dont use that one)
I downloaded LibSVM package, libsvm-3.14 to my Windows 7 PC, which MATLAB and OCTAVE interface come together.
I extracted the folder I downloaded. Which, below, you can see the printscreen of what the folder has in.
Where should I put my libsvm-3.14 extracted folder ? Should I put it under "bin" folder of my MATLAB installed in the directory?
C:\Program Files\MATLAB\R2009a\bin
I did that, however, it didn't work out. I will be grateful if you help me clearly. I just read README file, but it's not clear to understand and there is no other instructions online on the internet.
For the time being, it does not matter where you put that folder. You'll have to compile the Matlab-MEX files, from the source code that resides in the matlab subfolder of your extracted libsvm package.
Below, I will call the libsvm-3.14 (for example: C:\libsvm-3.14) extracted folder ROOT (so replace ROOT wilth C:\libsvm-3.14 below).
So, fire up Matlab and, then, at its command prompt, type:
cd ROOT
cd matlab
make
Now, in the ROOT/matlab folder, you should have obtained two MEX files (with the .mexw32 or .mexw64 extension). These are the files that you will use from now on. You can discard the rest, except those files (and, maybe, some other generated libraries).
According to the Makefile (that is ROOT/matlab/make.m), the MEX files are called svmtrain and svmpredic (+ the extension).
So, next step would be to create a subfolder called libsvm/ under your's Matlab/toolbox folder, copy the two MEX files therein and, then, add that libsvm/ folder to the Matlab Path (not the Path of your system, but of your Matlab installation).
Then, by typing:
svmtrain
and
svmpredict
you should have the help (usage) of these two functions.
With the aid of #axeoth, here is the solution. I followed instruction files in matlab subfolder of extracted libsvm package. I downloaded and installed Microsoft Visual Studio 2010 and wrote 'mex -setup' on command window of MATLAB to choose a suitable compiler for mex (I use MATLAB R2012b in 32-bit PC, so I found supported compilers in this link http://www.mathworks.com/support/compilers/R2012b/win64.html) After then, I followed #axeoth's instructions. I changed the name of the folder to ROOT and moved it to Documents/MATLAB. I started MATLAB and on command window, I wrote these below "one by one"
>> cd C:\Users\HUstat\Documents\MATLAB\ROOT\matlab
>> cd matlab
>> make
then I copied everything obtained in ROOT/matlab subfolder. I created a new folder named libsvm under MATLAB/toolbox folder and pasted everything there. and then, I added that libsvm/ folder to the Matlab Path by using "Set Path" button on MATLAB R2012b. After then I wrote "svmtrain" and "svmpredict" so I got the helps of these two commands.
For those having major compiler problems I thought I'd leave some extra information on the subject of installing compilers. This was a frustrating problem I had an ended up contacted MATLAB for help. I would have commented in the above posts but I do not have enough "rep" so here it is:
I was unable to install Microsoft Windows SDK 7.1, whether via Microsoft Visual Studio 2010 or otherwise. I found out that this was because I had a certain version of Microsoft Visual installed (version 10.0.04... was the cause of the problem for me). The work around was to uninstall Visual, install SDK 7.1 independently and then re-install Visual after. The process is written up in greater detail in the link below:
http://www.mathworks.com/matlabcentral/answers/95039-why-does-the-sdk-7-1-installation-fail-with-an-installation-failed-message-on-my-windows-system
It may also be that you have the compiler installed but that it wasn't recognised until MATLAB "found" it. This happened to me after the re-install. To check if you have the correct compiler and "find" it run mex.getCompilerConfigurations('Any','Installed') to get a full list. Then do mex -setup using the SDK 7.1 choosing the C/C++ version over FORTRAN.
I know the question is answered already but hopefully this may help someone the same predicament I had.

Error installing cab file on Windows CE

I'm having trouble using macros in my .inf file that I'm using to create my cab, specifically when setting the InstallDir string. If I do something like this:
InstallDir=\<PathToProgramFiles>\MyAppName
then everything works fine. However, if I do this:
InstallDir=%CE1%\MyAppName
then I get the following error when trying to install the cab (double tapping it on my device): "MyAppName was not installed successfully. Please run Setup again."
This only seems to apply to the built-in macro strings. I can use %AppName% without any problems. Maybe there is some registry setting that isn't properly set that would normally resolve the %CE1% macro?
Any ideas about what is going on?
Edit: My device doesn't have a \Program Files directory. It seems the %CE1% macro always resolves to that path and if the InstallDir specified in the inf file doesn't exist (with the exception of the last directory portion then the install fails. Manually creating \Program Files fixed the issue. Since a lot of the devices I'm working with have different paths for their Program Files directory, is there a generic way to get the installer to default to the actual Program Files dir? I guess my only other option is to not specify a path and force the user to choose one?
First, in this link you can find the shortcuts and their meaning (the %C..%), goto appendix B. The Windows CE5 MSDN link.
You can add a Setup Dll to your CAB installaer that will check the directory structure and will create a folder in case it does not exist. You may find this SO question useful.
A warning: If you are targeting regular Windows CE devices, beware where you place the files as it can be to a RAM based file system and then the files will disappear after reboot.

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