TImageEnIO.TwainParams

Declaration

property TwainParams: TIETwainParams;

Description

Use the TwainParams property to control acquisition from Twain scanners and cameras. You can enable/disable the standard user interface, set pixel type (Grayscale, RGB...), DPI, etc.

Note: Use TwainParams only when you need access to Twain specific parameters and functionality (when SelectedAcquireSource.Api is ieaTwain). For generic access to all image acquisitions sources (Twain, WIA, etc.) use AcquireParams instead.

Example

// Acquire a black/white (1bit) image from the default Twain device
ImageEnView1.IO.TwainParams.PixelType.CurrentValue := 0;
if ImageEnView1.IO.SetAcquireSource(ieaTwain, Default_Device) then
ImageEnView1.IO.Acquire();

Demo

Demos\ImageAcquisition\Twain\TwainDemo.dpr

TImageEnIO.TwainParams