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Help / WLanguage / Managing databases / HFSQL / HFSQL functions
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Stored procedures
<Source>.CheckUnaltered (Function)
In french: <Source>.VérifieInaltéré
HFSQL ClassicHFSQL Client/ServerAvailable only with these kinds of connection
Checks that one or all records in an unalterable data file have not been modified (e.g. with a hexadecimal editor).
Warning: A corrupted record can be read if the record header is not corrupted.
Example
// Check all records found in MyCustomerFile
IF MyCustomerFile.CheckUnaltered() = True THEN
Trace("No record was modified")
ELSE
Trace("The file was altered")
END
Syntax
<Result> = <Source>.CheckUnaltered([<Record> [, <Progress Bar>]])
<Result>: Boolean
  • True if the record was not altered,
  • False otherwise. In this case, ErrorInfo returns the list of altered records.
<Source>: Type corresponding to the specified source
Name of the HFSQL data file to check.
<Record>: Optional integer or Integer constant
  • Number of the record to check.
  • Constant used to specify the record to check:
    hCurrentRecNumCheck the current record.
    hRecNumAll
    (Default value)
    Check all records.
<Progress Bar>: Optional control name or window name
  • Name of the window in which the progress bar will be displayed.
  • Name of the Progress Bar control.
WEBDEV - Server code This parameter is ignored.
Component: wd300hf.dll
Minimum version required
  • Version 25
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Last update: 12/07/2024

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