I’ve written the following function to resize a given binary file to a given size.
The function works when the file is located at C:\ , but it does not when the file is inside a folder.
Any idea why this is happening?

#include <windows.h>

void truncate_file (long int  new_size , char* file_name)
{

char szFileName[MAX_PATH];   //full path

GetCurrentDirectory(MAX_PATH,szFileName);
strcat(szFileName,"\\");
strcat(szFileName,file_name);


HANDLE hFile = CreateFile(szFileName,GENERIC_WRITE,
                     0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

SetFilePointer(hFile,new_size,NULL,FILE_BEGIN);

SetEndOfFile(hFile);

}

Thanks.

: I’ve written the following function to resize a given binary file to
: a given size.
: The function works when the file is located at C:\ , but it does not
: when the file is inside a folder.
: Any idea why this is happening?
:

Probably because GetCurrentDirectory does not always return the same string. You should use a different way of determining the directory. I assume your intention is to get the EXE file directory? In that case try using GetModuleFileName (I believe it was called), and extract the path portion of the returned filename.

Best Regards,
Richard

The way I see it... Well, it's all pretty blurry

: : I’ve written the following function to resize a given binary file to
: : a given size.
: : The function works when the file is located at C:\ , but it does not
: : when the file is inside a folder.
: : Any idea why this is happening?
: :
:
: Probably because GetCurrentDirectory does not always return the same
: string. You should use a different way of determining the directory.
: I assume your intention is to get the EXE file directory? In that
: case try using GetModuleFileName (I believe it was called), and
: extract the path portion of the returned filename.
:
: Best Regards,
: Richard
:
: The way I see it... Well, it's all pretty blurry


Also, where is CloseHandle (hFile);?