Par2: How to determine whether file is opened 2000-07-17 -- Todd Wilkins You can use the STATUS function to determine if a file is open or not.
See below :
IF STATUS(filename) = 0 !File is not open
ELSE !Status will return the file's access mode.
END
Maarten notes that STATUS expects the label of a structure, not just a
file name and recommends:
Open(Afile,12h)
IF ErrorCode() = NoAccessErr
Message('The file is already open')
End
Close(Afile)
If you don't want to declare a file at all then:
Inside your map:
Module('CW_API')
Access(*cstring,short),short,raw,name('_access')
End
Data:
GLO:FileName Cstring(128)
Code:
GLO:FileName = MyTpsFileName.Tps
IF NOT Access(GLO:FileName,0) !File exists
Message('Don't have Write Permission')
End
BTW:
Access(File,0) = check exists, works on dir-names
Access(File,2) = Check for Write permission
Access(File,4) = Check for Read permission
Access(File,6) = Check for Read and Write permission
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