I am new to VC++ programming. I am developing a program where in I have to get absolute path of a *.bmp file from all the folders in a directory dynamically. I am able to navigate to every folder in the directory dynamically but not able to get absolute path of the files.
I am not able to use "GetFullPathName", I am not sure if this will solve the purpose.
Please help.
If you are using CFileFind to locate the files, you should be able to use CFileFind::GetFilePath () to get the complete path.
Related
I have my project where i am using filesystem to retrieve directory of assets.
When i am lunching my program in editor(im using Visual Studio 2019) everything is fine and this code return value of working direcotry of project.
std::string currentPath = std::filesystem::current_path().string();
But when i am lunching app from .exe file this line of code returns path that leads to .exe file.
The same directory called $TargetPath in properties in VS.
So my question is why is that happening and how can i resolve this problem.Becouse of that i cannot automatically load assets when lounching app from .exe file
Because it gives the current working directory, which is set by the environment calling your program (unless your program explicitly changes it).
So, it does what it's designed to do, gives the current working directory:
Returns the absolute path of the current working directory,
So my question is why is that happening
It happens because you've configured the editor to set the working directory to one path, while you're running the program with another working directory outside the editor.
how can i resolve this problem.Becouse of that i cannot automatically load assets when lounching app from .exe file
Here is an approach:
Store the assets in a path that is relative to the exe.
Get path to the exe.
On POSIX, you can use argv[0] from arguments of main
On Windows, the documentation recommends GetModuleFileNameW
Get canonical absolute form of that path (make sure that working directory hasn't been changed before this step if the path to exe is relative).
Get the directory that contains the exe from that canonical path.
Join that directory path with the asset's relative path to get an absolute path to the asset
Load the asset using the absolute path.
I'm trying to use fstream to create a file, however the file i'm trying to create wont appear in the .exe directory or anywhere else in the file directory. After searching in my computer for the file, I found that was created in a different directory entirely even though i'm using a relative directory.
This is the code to create the file:
ofstream file;
file.open("something.jpg", ios::out|ios::binary|ios::beg);
Directory of created file: C:\Users\user-pc
Directory of project: D:\Users\user-pc\Documents\Visual Studio 2012\Projects\recvFile
by the way, using an absolute directory works perfectly fine. Could this be a problem with the projects working directory?
In your Visual Studio right-click on your project, click Properties, then go to Configuration Properties, then Debugging. There is a row "Working Directory". You can set the working directory there. If you need to do this programmatically, you can use SetCurrentDirectory .
If you need to create the file in the same directory as the .exe location, you can use this approach: https://stackoverflow.com/a/124901/1915854
Call GetModuleFileName() using 0 as a module handle...
If the .exe is installed in a shared directory like Program Files, then creation of the file in the same directory could require additional permissions and may be a bad idea. If the .exe is just cloned to the directory where it should create files, then there is no such problem.
Try adding "../" to the link:
file.open("../something.jpg", ios::out|ios::binary|ios::beg);
File will be created in Debug/Release folder of your project. try what Timo Rzipa suggested.
Where does this command look for the pem file ?
It is not in the folder where the dll runs.
When I use full path it works, when I use relative path - either like in the Title or ./cacert.pem)
I get Error 77: CURLE_SSL_CACERT_BADFILE
What is the right way to specify relative path for this file ?
Specifying a relative path there is asking for trouble. But it'd then use the relative path from whereever it is executed (no surprise there really).
Possibly the SSL library your libcurl is built to use doesn't even like a relative path.
OK, It looks like using a relative path works BUT.... When you run it under debugger it is not your $(solutiondir)/Debug folder ! so it should be on the same folder of your EXE when you run it, but when you debug, you need to put it also on another directory (I've put it on solution and project dir and it worked)
I am developing a C++ application for win32 console
I need to get list of files in my application directory
(for example if my application had been started in C:\arash\app\ I need list of files in this folder)
I searched and find FindFirstFile function in windows.h header , But this function need a directory path .
Can I use this function for getting list of files in my application running directory?
Thanks
Use GetModuleFileName() with a NULL module handle to get the path and filename of the .exe file. You can then strip off the filename portion, and use the remaining path as needed.
The current working directory is '.'.
As noted in comments, this isn't necessarily the directory you want.
I have written a c++ program and deployed it in say c:\my_app, and my executable's path is c:\my_app\my_app.exe. Say, my_app needs many files such as the_file.txt, which is located in c:\my_app\the_file.txt.
In my executable, I open the txt file as, xx.open("the_file.txt");
Moreover, I have associated my program with let's say .myp extension.
When I'm on Desktop, and want to open a file named example.myp, my program can not see the_file.txt. Because, it (somehow) assumes that it's currently working on Desktop.
Is there any easy way to handle this problem by changing shell command for open in HKEY_CLASSES_ROOT? The naive solution would be to change all file open operations with something like %my_app_location/the_file.txt". I don't want to do that.
Always use a full path name to open a file. In other words, don't open "foo.txt", open "c:\bar\foo.txt". To find the install directory of your EXE use GetModuleFileName(), passing NULL for the module handle.
These days you shouldn't add files to c:\my_app....
Instead use the ProgramData Folder and full paths.
Use SHGetSpecialFolderPathA with CSIDL_COMMON_APPDATA to get the ProgramData folder and the create your program directory and add your files.
You should set current directory for your app's folder with SetCurrentDirectory function. After that you can open file by name without full path