TIETwainParams.ShowSettingsOnly

Declaration

property ShowSettingsOnly: boolean;

Description

If ShowSettingsOnly is True the scanner driver will show settings dialog, without acquiring an image.
You can use SourceSettings to read scanner settings.

Subsequent calls to Acquire will return True if user presses OK (or Save), False otherwise.

Note:
◼By default, Twain scanner dialogs are not centered. To force centering, set TwainDialogCentering
◼Set the Twain compatibility options that control the display of this dialog

Demo

Demos\ImageAcquisition\TwainStore\TwainStore.dpr

Example

// first session: show scanner dialog only to set scanner settings
ImageEnView1.IO.TwainParams.ShowSettingsOnly := true;
ImageEnView1.IO.Acquire();
ImageEnView1.IO.TwainParams.SourceSettings.SaveToFile('mysettings.dat');

// another session: use saved settings
ImageEnView1.IO.TwainParams.ShowSettingsOnly := false;
ImageEnView1.IO.TwainParams.VisibleDialog := false;
ImageEnView1.IO.TwainParams.SourceSettings.LoadFromFile('mysettings.dat');
ImageEnView1.IO.Acquire();

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