"kill" command in liberty basic

rrr · #1 Jan 3, 2007, 05:16 AM

it seems the "kill" cmd in liberty basi doesent work because files are interpreted as read only when trying to "kill" them. i tried making a un-install program with the kill cmd, but it didnt work. what to to???

LTheobald · Jan 3, 2007, 08:20 AM

There might be an unload command for the file you are opening. E.g. loadbmp has a unloadbmp command to unload the file. What command are you using to load the file?

I got that from searching on the help a bit:
Liberty BASIC Online Help

rrr · Jan 3, 2007, 11:15 PM

i guess you misinterpreted the command, you do not use the "kill" command when handling a file, then you use the close *filehandler*
kill is used in this way:

Code:

print "Enter a valid path for a file so that this program can erase it :)"
input path$
kill$(path$)

Liberty basics helpfiles description:

Code:

KILL "filename.ext"
This command deletes the file specified by filename.ext.  The filename can include a complete path specification.

Even if path$ leads to a valid file, the file somehow turn into a read-only file. i tried to remove the read-only option, but it still didn't work. it turns out that it had gone back to being a read-only file.
and thanks for helping me!

if you are looking for a place to download liberty basic go here:
Liberty BASIC - Easy Programming for Windows
fun fact: i am thirteen

Carl Gundel · Jan 11, 2007, 12:37 PM

Quote:

Originally Posted by rrr

it seems the "kill" cmd in liberty basi doesent work because files are interpreted as read only when trying to "kill" them. i tried making a un-install program with the kill cmd, but it didnt work. what to to???

The file delete command (like KILL) cannot delete read only files. You will probably need to use a function the Windows API to set the read only flag to false.

SetFileAttributesA looks like the right one.

Here's a short example:

Quote:

FileDialog "Select filename", "*.*", file$
Call ClearReadOnly file$
End

Sub ClearReadOnly File$
CallDLL #kernel32, "GetFileAttributesA", _
File$ As Ptr, _
attr As Long

If attr <> -1 Then ' check for valid file
If (attr And _FILE_ATTRIBUTE_READONLY) = 1 Then
attr = attr - _FILE_ATTRIBUTE_READONLY

CallDLL #kernel32, "SetFileAttributesA", _
File$ As Ptr, _
attr As Long, _
ret As Long
End If
End If
End Sub

-Carl Gundel, author of Liberty BASIC
Liberty BASIC - Easy Programming for Windows

rrr · Jan 15, 2007, 02:02 AM

thank you very much, carl. it's a honor to have been helped by you
*bows deeply*



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