See Also: File I/O Functions, Appending Data to an Output File, Sequential File I/O
Command |
Purpose |
To add output to a sequential file. |
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To enable concurrent opening of more than one output destination or input source, and to enable switching from on channel to another as an application executes. |
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To close a sequential input file. |
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To close a sequential output file. |
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Copies one or more disk files |
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To open a file or device for sequential input. |
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To write output to a sequential file, a printer, or the Windows clipboard. |
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Deletes one or more disk files |
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Checks whether a file or folder exists |
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Immediately forces a write of cached output data. |
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Gets the value of the file offset of a sequential file channel. |
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To determine the size (in bytes) of a sequential file currently being used for input or output. |
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To return the full path of the user's current folder, including the drive letter. |
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To retrieve the number of the sequential file channel currently being used for input. |
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To retrieve the number of the sequential file channel currently being used for output. |
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To obtain the current working folder for a given drive letter. |
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To return the status of a specific drive. |
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Returns the date and time of the last time a file was changed. |
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Returns the path (among those listed in DF_OPEN_PATH) for a specified file. |
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Returns the path of the folder in which Windows is installed. |
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To create a new disk folder. |
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To create a new, empty disk file. |
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To read "words" of data from a sequential file, device, or text field and move them to one or more variables. |
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To read a block of data of a specified size from a sequential file, device, or text field and move it to a variable. |
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To read binary data as two-byte hexadecimal numbers. |
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To read a line of data from a sequential file, device, text field, or image, and move its "words" to one or more variables. |
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To remove a disk folder. |
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To change the name of a disk file. |
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To set the input/output channel position pointer to a position. |
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To obtain the current working folder for a given drive letter. |
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To check if a given drive letter is valid on the system. |
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To write the values of one or more variables to a sequential file, device or text field. |
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To write binary data as two-byte hexadecimal numbers. |
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To write the values of one or more variables to a sequential file, device, or text field as a line of data. |