private void SetupPageSize(WIA.Item item, PageSize pageSize, ColorDepth colorDepth, Resolution resolution, Orientation orientation, bool setSize)
{
if (item == null)
return;
item.Properties["Horizontal Resolution"].set_Value(resolution.Value);
item.Properties["Vertical Resolution"].set_Value(resolution.Value);
item.Properties["Current Intent"].set_Value(colorDepth.Value);
item.Properties["Bits Per Pixel"].set_Value(colorDepth.BitsPerPixel);
double hExtent = item.Properties["Horizontal Extent"].SubTypeMax;
double vExtent = item.Properties["Vertical Extent"].SubTypeMax;
if (setSize)
{
if (orientation.Direction == 0)
{
item.Properties["Horizontal Extent"].set_Value(resolution.Value * pageSize.Width);
item.Properties["Vertical Extent"].set_Value(resolution.Value * pageSize.Height);
}
else
{
item.Properties["Horizontal Extent"].set_Value(resolution.Value * pageSize.Height);
item.Properties["Vertical Extent"].set_Value(resolution.Value * pageSize.Width);
}
}
else
{
item.Properties["Horizontal Extent"].set_Value(hExtent);
item.Properties["Vertical Extent"].set_Value(vExtent);
}
}
public Image Scan(DeviceInfo device, PageSize pageSize, ColorDepth colorDepth, Resolution resolution, Orientation orientation, bool setSize = true)
{
if (device == null)
throw new ArgumentException("Device must be specified");
var scanner = device.Connect();
var wiaCommonDialog = new WPFCommonDialog();
var item = scanner.Items[1];
SetupPageSize(item, pageSize, colorDepth, resolution, orientation, setSize);
var image = (ImageFile)wiaCommonDialog.ShowTransfer(item, wiaFormatBMP, false);
string fileName = Path.GetTempFileName();
File.Delete(fileName);
image.SaveFile(fileName);
image = null;
// add file to output list
return Image.FromFile(fileName);
}