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Main menu - File - Verify checksums |
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Activating the menu item "File → Verify checksums" or the "Enter" key opens the dialog "Verify checksums", where the checksums for all checksum files selected in the active panel can be verified. If on activating the function files with extensions unlike "MD5" or "SHA..." are also selected, the following error message is shown:
Another error message is shown, if files created by different checksum methods are highlighted.
Checksum methods are widely used cryptographic hash functions, that create a hash value (checksum) over any message.
The dialog "Verify checksums" allows to verify, if files (listed in the checksum file) have changed since the creation of the checksum file.
The "Verify checksums" dialog contains the tabs
the information bar
and the buttons
Selected item(s)
The content displayed under "Selected item(s)" differs according to the number of checksum files selected in the active panel:
- One file to be verified
If only one file is selected, the name of the file is displayed under "Selected item(s)". - Several files to be verified
If several files are selected, the number of files is displayed under "Selected item(s)".
from
The folder from where the checksum files are selected is displayed under "from".
Target
The input field "Target" is not active. It has to hold the folder that contains the files to be verified. This is especially important, if only relative paths are stored in a checksum file.
Include only files of this type:
- Input field "Include only files of this type"
The content of the input field "Include only files of this type" allows to limit (filter) the number of files (contained in the selected checksum files) that are to be verified. Wildcards and regular expressions are accepted in the input field. As soon as a filter is entered and the tab "Files" or the button "Run" are activated, the contents of the information bar ...files ...folders is refreshed. - Button
After activating the button a selection list is shown, with the last inputs (filters) in this field and the text "<RegExp>:" (to enter regular expressions). Clicking a row in this selection list overwrites the contents of the input field with the contents of the clicked row. - Button
After activating the button a selection list with filters (defined under the menu item "Folder → Filter → Set filter") is shown. Selecting a filter overwrites the contents of the input field with "<Filter>:" + "contents of the filter".
The tab "Files" lists all files that have to be verified.
Initially only the columns "Name" and "Path" are filled. The column "checksum" and "Error message" are filled only after activating the button "Run".
Button 
Activating the button reloads all files. This may be useful if they can be processed from various workspaces.
Quick filter bar 
The quick filter provides the possibility to decrease the number of files for which the checksums have to be verified.
- Input field
The input field "Quick filter" allows to define a filter. (Example: ".bmp; .png; a*.htm")
As soon as the focus is on this field and the first character is typed, the quick filter is activated and the button behind the input field is switched from
to 
. - Button
After activating the button a selection list is shown, with the last inputs (filters) in this field. Clicking the button activates the highlighted filter.
- Button
Clicking activates the quick filter, changes the button to and refreshes the contents of the information bar ...files ...folders.
Clicking deactivates it and switches the button back to .
Under the tab "Settings" further settings for the "Verify checksums" process can be defined.
Auto close for successful operation
If this option is checked, the "Verify checksums" dialog is closed automatically, as soon as all processes are successfully completed.
Auto close for canceled operation
If this option is checked, the "Verify checksums" dialog is closed automatically, after one process was canceled.
Use uppercase for display the sum
If this option is checked, the characters in the checksums are shown in capitals.
Count of worker threads
To speed up the checksum calculation, the number of background processes can be increased. With this several checksums can be calculated parallel.
Save relative paths
This option is irrelevant for the verification of checksums.
Use UTF-8 encoding if save as file
If this option is checked, UTF-8 encoding is used for saving as file, otherwise the local Windows character set.
Information bar: ...files ...folders
In the "Verify checksums" dialog the information bar (lowest window line) " ...files ...folders" shows the information how many files are to be verified. On opening the dialog the bar is invisible. Whenever the tab "Files" or the button "Run" are activated, the files to be verified are loaded and their number is shown. The number of files shown in the information bar can be different from the number shown under "Selected item(s)". The differences may result from:
- The input field "Include only files of this type" contains a filter
- Under "Selected item(s)" all selected files and folders are counted.
In the information bar all files in selected folders and their subfolders are counted additionally.
After activating the button 
the verify checksums calculation process is started for all items to be verified.
The "Verify checksums" dialog shows the following modifications:
Copy to clipboard
After activating the button 
the file names, paths and checksums are copied to the clipboard.
Show only errors
After activating the button 
only files are shown during their calculation or verification an error occurred.
Verification progress
The verification progress is visualized in a progress bar below the item list.
Verification status of the files
In the file list each file is preceded by an icon that shows the verification status of the file:
file not yet verified
file verified successfully
An error has occurred during the calculation or verification process of this file.
An error message is shown in the column "Error message" in the row of the file.
The message bar shows the actually verified file.
Activating the button "Cancel", cancels the verification process and closes the "Verify checksums" dialog.