file = CreateFile("test.txt",
GENERIC_WRITE, // open for reading
FILE_SHARE_READ, // share for reading
NULL, // default security
OPEN_EXISTING, // existing file only
FILE_ATTRIBUTE_NORMAL, // normal file
NULL);
CreateFile and locking files
Author
I'm trying to use CreateFile (Win32 fuction) to open a file and cause it to be locked from writing by other processes but have them still be able to open and read it. It works fine in XP, but in 98 nothing seems to be able to read or write to it. Just wondering if its something to do with the Win98 operating system. This is the code I'm using to open the file:
Author
I was playing around with it some more and changed GENERIC_WRITE to GENERIC_READ and it seems to be working. Anybody have any kind of clue as to why?
In your call example you mixed the two
GENERIC_WRITE, // open for reading <- nope, open for writing
FILE_SHARE_READ, // share for reading
GENERIC_WRITE, // open for reading <- nope, open for writing
FILE_SHARE_READ, // share for reading
Author
I had it as GENERIC_READ before but I was doing something that made it not work and changed it to _WRITE and forgot to put it back.
With fopen() I'm fairly sure you could open a file in write mode and still be able to have other processes open the same file for reading/writting. I was wondering if there was something funny going on with CreateFile() that I didn't know about or couldn't find on MSDN.
With fopen() I'm fairly sure you could open a file in write mode and still be able to have other processes open the same file for reading/writting. I was wondering if there was something funny going on with CreateFile() that I didn't know about or couldn't find on MSDN.
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