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Copy a file?

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Copy a file? C programming forum discussing all C derivatives, including C#, C++, Object-C, and even plain old vanilla C. These languages are low level languages, and used on projects such as device drivers, compilers, and even whole computer operating systems.

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  #1  
Old September 19th, 2002, 11:56 PM
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Copy a file?
Hi i was wondering if anyone knew how I can copy a file (with C++) and then place it in a folder and overwrite a file in that folder with the same name.

Thanks

Edit: Oh yea, and i was wondering how i could open a file that has a space in the folder name like.. C:\Documents and Settings\default\My Documents how can i write that in C++ Coz it doesnt let me do spaces
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  #2  
Old September 20th, 2002, 03:54 PM
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See the CopyFile() and CopyFileEx() documentation in MSDN

There should be no problems in using spaces in filenames with these functions.
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Old September 21st, 2002, 02:38 PM
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oh sweet thanks
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Old September 23rd, 2002, 08:42 PM
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Hi, Sorry if i should newb but in order to copy a file, i have this code..

Code:
BOOL CopyFile(
  LPCTSTR lpExistingFileName,
  LPCTSTR lpNewFileName,
  BOOL bFailIfExists
);


but... do i just leave lpExistingFileName as that? or do i change it with like C:\Whatever\I\Want\To\Copy

Thanks in advance.

-Kyle
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Old September 23rd, 2002, 09:03 PM
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My experience, which is limited, is that you need to use double backslashes because of real expressions.
Example: C:\\Whatever\\I\\Want\\To\\Copy



Eric
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Old September 23rd, 2002, 11:41 PM
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Yea i know but what i mean is like how do i tell the program the path to the file? do i go like

#define lpExistingFileName C:\\*******

or what ?

Thanks.
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Old September 24th, 2002, 07:04 AM
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Here is a good example...

MSDN

Eric
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Old September 24th, 2002, 06:37 PM
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You can just use something like this:
Code:
CopyFile("C:\\path\\to\\source\\file", "C:\\path\\to\\destination\\file", FALSE);

If you don't understand what this LPCTSTR business is all about, I suggest you research Hungarian Notation on the web, or look it up in a Visual C++ programming book. Practically all of Micro$oft's code uses Hungarian Notation as their standard naming convention and it's good to become slightly familiar with it.
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Old September 24th, 2002, 08:47 PM
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Ok, Thanks a lot
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