TIETwainParams.Orientation
Declaration
property Orientation: TIEIntegerList;
Description
Defines the orientation of the output image. Not all scanners support this capability.
Valid values are:
| Value | Description |
| Twain_Orientation_NoRotate (0) | No rotation (Portrait) |
| Twain_Orientation_Rotate90 (1) | Rotate 90° |
| Twain_Orientation_Rotate180 (2) | Rotate 180° |
| Twain_Orientation_Rotate270 (3) | Rotate 270° (Landscape) |
Note: Rotation direction is clockwise
The above values can be assigned to the Orientation.
CurrentValue property.
To determine which values your scanner supports, consult the Orientation.
Items[] array.
Twain Property: ICAP_ORIENTATION
Note: Use
IsCapabilitySupported to determine if this capability is supported by the current scanner
// Acquire image in landscape orientation (if supported)
ImageEnView1.IO.TwainParams.Orientation.CurrentValue := 3;
ImageEnView1.IO.TwainParams.VisibleDialog := False;
ImageEnView1.IO.Acquire();
// As above, but control if landscape is supported
if ImageEnView1.IO.TwainParams.Orientation.IndexOf(3)=3 then
begin
ImageEnView1.IO.TwainParams.Orientation.CurrentValue := 3;
ImageEnView1.IO.TwainParams.VisibleDialog := False;
ImageEnView1.IO.Acquire();
end
else
ShowMessage('landscape isn't supported');