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C++ -- Creating file but unable to delete it
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HI Team,
First of all, I'm new to C++, so my knowlege is like 2% and I would like to thank you for any help provided. Well I'm working on a project that looks like this:
-- I'm creating an executalble (EXE) that will monitor and create a file into C:/program files/GMLocal7/ directory if it doesn't exist.
-- If the file gets deleted by user or another program, I want my exe to re-create it.
-- My EXE needs be running in the background w/o user interaction.
so far my current exe is creating the file but locks it so, when I try to delete the file Windows is telling me that the file is begin used by another program.
Does anyone know what needs to be added to the code in order for EXE not to lock the file its generating?
here's the code I'm using to compile my small app:
thanks in advance for your help!
First of all, I'm new to C++, so my knowlege is like 2% and I would like to thank you for any help provided. Well I'm working on a project that looks like this:
-- I'm creating an executalble (EXE) that will monitor and create a file into C:/program files/GMLocal7/ directory if it doesn't exist.
-- If the file gets deleted by user or another program, I want my exe to re-create it.
-- My EXE needs be running in the background w/o user interaction.
so far my current exe is creating the file but locks it so, when I try to delete the file Windows is telling me that the file is begin used by another program.
C++ Syntax (Toggle Plain Text)
Does anyone know what needs to be added to the code in order for EXE not to lock the file its generating?
here's the code I'm using to compile my small app:
C++ Syntax (Toggle Plain Text)
thanks in advance for your help!
Last edited by mario20055; Jul 2nd, 2009 at 4:32 pm. Reason: I need to be more specific when mentioning on the deletion.
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Practically a Posting Shark
Open the file with the sharing flag set will give you some flexibility.
If you want your program to delete a file clean due to corruption, etc. you can use one of the following!
Simple CRun time library call.
And since you're using windows
#include <windows.h>
If you want your program to delete a file clean due to corruption, etc. you can use one of the following!
Simple CRun time library call.
C Syntax (Toggle Plain Text)
And since you're using windows
#include <windows.h>
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Last edited by wildgoose; Jul 2nd, 2009 at 4:25 pm. Reason: answer adjustment
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Create a function, does file exist. If it fails then create it!
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Its not necessary to test for file existance beforehand. Just open like this:
ios::in | ios::out | ios::ate . This will append text to the end of the file every time the program is run. C++ Syntax (Toggle Plain Text)
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Originally Posted by mario20055 
when I try to delete the file Windows is telling me that the file is begin used by another program.
C++ Syntax (Toggle Plain Text)
int main(int argc, char* argv[])
{
fstream out("HelloWorld.txt", ios::in | ios::out | ios::ate );
if( out.is_open() )
{
out << "Hello World\n";
}
else
cout << "Failed\n";
// We're done:
out.close();
} Last edited by niek_e; Jul 3rd, 2009 at 10:41 am.
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fstream auto closes the file when the function is finished, and that's why I didn't do it in main(). But you have to call close() if you wanted to delete the file in the same function that opened it.
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