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List Files - Original File Being Copied From
DocumentID: 651189
Revision Date: 29-Feb-96 8:29:05 PM

The information in this document applies to:
WordPerfect® 5.1 for DOS

Problem

Symptoms: The user is experiencing a problem with copying files within List Files. Using the network copy of WP, the original file that is being copied to another directory is left open. To duplicate:
1.      Enter List Files and copy a file from one drive/directory on the network to another drive/directory on the network.
2.      Retrieve the copy of the file (not the original) to the editing screen.
3.      Have another user try to retrieve the original file.
The customer used these steps and found that when trying to retrieve the original (Step #3), the file was Read Only.

Also, when a user creates a document, presses F10 to save the file to a network directory, then makes a few changes and saves the file to a different network directory, the document has brackets around the filename when the it is retrieved again even though it has not been opened by another user. Solutions: WordPerfect uses DOS to Open, Copy, and Close the file. WordPerfect uses interrupt 21 followed by the hexadecimal values that do the following: Open, Read, Copy, Close. The process of executing a copy command from List Files is as follows:
1.      Open the file "to be copied" to determine if the file exists.
2.      Open the destination file to see if it exists.
3.      Read the file into memory
4.      Write the file from memory to the destination on disk.
5.      Close the file.

This is a very crude example of how a file is copied. However, the DOS interrupt 21 is the interrupt performing this function for WP. In fact, the entire process is handled by DOS. In a network environment the DOS interrupt 21 is taken over by the Network. The Network does this by intercepting the interrupt call and performing the function of the interrupt. I have not seen this happen except where one user does not have rights to that directory.

Note: This problem has not been duplicated here in Customer Support. If this problem can be duplicated in house, it needs to be re-addressed as possibly a WP problem. Please be aware of this and write up an STR with as much information as possible.

Answer:

Details:


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