/// <summary>
/// Handle an image. a_bitmap is passed by reference so that this function can
/// dispose and null it out to gain access to the file that's backing it. The
/// calling toolkit function will never perform any action with a_bitmap after
/// this function returns.
/// </summary>
/// <param name="a_szDg">Data group that preceeded this call</param>
/// <param name="a_szDat">Data argument type that preceeded this call</param>
/// <param name="a_szMsg">Message that preceeded this call</param>
/// <param name="a_sts">Current status</param>
/// <param name="a_bitmap">C# bitmap of the image</param>
/// <param name="a_szFile">File name, if doing a file transfer</param>
/// <param name="a_szTwimageinfo">data collected for us</param>
/// <param name="a_abImage">a byte array of the image</param>
/// <param name="a_iImageOffset">byte offset where the image data begins</param>
private TWAINCSToolkit.MSG ReportImage
(
string a_szTag,
string a_szDg,
string a_szDat,
string a_szMsg,
TWAINCSToolkit.STS a_sts,
Bitmap a_bitmap,
string a_szFile,
string a_szTwimageinfo,
byte[] a_abImage,
int a_iImageOffset
)
{
// Let us be called from any thread
if (this.InvokeRequired)
{
// We need a copy of the bitmap, because we're not going to wait
// for the thread to return. Be careful when using EndInvoke.
// It's possible to create a deadlock situation with the Stop
// button press.
BeginInvoke(new MethodInvoker(delegate() { ReportImage(a_szTag, a_szDg, a_szDat, a_szMsg, a_sts, a_bitmap, a_szFile, a_szTwimageinfo, a_abImage, a_iImageOffset); }));
return(TWAINCSToolkit.MSG.ENDXFER);
}
if (a_bitmap == null)
{
// Report errors, but only if the driver's indicators have
// been turned off, otherwise we'll hit the user with multiple
// dialogs for the same error
if (!Settings.Default.ShowDriverMessages && (a_sts != TWAINCSToolkit.STS.SUCCESS))
{
HandleError(string.Format("{0}: {1}", Resources.ErrorFromSource, a_sts));
}
}
else
{
AddPage(a_bitmap);
}
return(TWAINCSToolkit.MSG.ENDXFER);
}
/// <summary>
/// Handle an image. a_bitmap is passed by reference so that this function can
/// dispose and null it out to gain access to the file that's backing it. The
/// calling toolkit function will never perform any action with a_bitmap after
/// this function returns.
/// </summary>
/// <param name="a_szDg">Data group that preceeded this call</param>
/// <param name="a_szDat">Data argument type that preceeded this call</param>
/// <param name="a_szMsg">Message that preceeded this call</param>
/// <param name="a_sts">Current status</param>
/// <param name="a_bitmap">C# bitmap of the image</param>
/// <param name="a_szFile">File name, if doing a file transfer</param>
/// <param name="a_szTwimageinfo">data collected for us</param>
/// <param name="a_abImage">a byte array of the image</param>
/// <param name="a_iImageOffset">byte offset where the image data begins</param>
public TWAINCSToolkit.MSG ReportImage
(
string a_szTag,
string a_szDg,
string a_szDat,
string a_szMsg,
TWAINCSToolkit.STS a_sts,
Bitmap a_bitmap,
string a_szFile,
string a_szTwimageinfo,
byte[] a_abImage,
int a_iImageOffset
)
{
// We're leaving...
if (m_blClosing || (m_graphics1 == null) || (a_bitmap == null))
{
return(TWAINCSToolkit.MSG.RESET);
}
// Let us be called from any thread...
if (this.InvokeRequired)
{
// We need a copy of the bitmap, because we're not going to wait
// for the thread to return. Be careful when using EndInvoke.
// It's possible to create a deadlock situation with the Stop
// button press.
BeginInvoke(new MethodInvoker(delegate() { ReportImage(a_szTag, a_szDg, a_szDat, a_szMsg, a_sts, a_bitmap, a_szFile, a_szTwimageinfo, a_abImage, a_iImageOffset); }));
return(TWAINCSToolkit.MSG.ENDXFER);
}
// Display the image...
switch (m_iCurrentPictureBox)
{
default:
case 0:
LoadImage(ref m_pictureboxImage1, ref m_graphics1, ref m_bitmapGraphic1, a_bitmap);
break;
case 1:
LoadImage(ref m_pictureboxImage2, ref m_graphics2, ref m_bitmapGraphic2, a_bitmap);
break;
case 2:
LoadImage(ref m_pictureboxImage3, ref m_graphics3, ref m_bitmapGraphic3, a_bitmap);
break;
case 3:
LoadImage(ref m_pictureboxImage4, ref m_graphics4, ref m_bitmapGraphic4, a_bitmap);
break;
case 4:
LoadImage(ref m_pictureboxImage5, ref m_graphics5, ref m_bitmapGraphic5, a_bitmap);
break;
case 5:
LoadImage(ref m_pictureboxImage6, ref m_graphics6, ref m_bitmapGraphic6, a_bitmap);
break;
case 6:
LoadImage(ref m_pictureboxImage7, ref m_graphics7, ref m_bitmapGraphic7, a_bitmap);
break;
case 7:
LoadImage(ref m_pictureboxImage8, ref m_graphics8, ref m_bitmapGraphic8, a_bitmap);
break;
}
// Next picture box...
if (++m_iCurrentPictureBox >= 8)
{
m_iCurrentPictureBox = 0;
}
// All done...
return(TWAINCSToolkit.MSG.ENDXFER);
}
/// <summary>
/// Handle an image. a_bitmap is passed by reference so that this function can
/// dispose and null it out to gain access to the file that's backing it. The
/// calling toolkit function will never perform any action with a_bitmap after
/// this function returns.
/// </summary>
/// <param name="a_szDg">Data group that preceeded this call</param>
/// <param name="a_szDat">Data argument type that preceeded this call</param>
/// <param name="a_szMsg">Message that preceeded this call</param>
/// <param name="a_sts">Current status</param>
/// <param name="a_bitmap">C# bitmap of the image</param>
/// <param name="a_szFile">File name, if doing a file transfer</param>
/// <param name="a_szTwimageinfo">data collected for us</param>
/// <param name="a_abImage">a byte array of the image</param>
/// <param name="a_iImageOffset">byte offset where the image data begins</param>
private TWAINCSToolkit.MSG ReportImage
(
string a_szTag,
string a_szDg,
string a_szDat,
string a_szMsg,
TWAINCSToolkit.STS a_sts,
Bitmap a_bitmap,
string a_szFile,
string a_szTwimageinfo,
byte[] a_abImage,
int a_iImageOffset
)
{
// We're leaving...
if (m_graphics1 == null)
{
return(TWAINCSToolkit.MSG.RESET);
}
// Let us be called from any thread...
if (this.InvokeRequired)
{
// We need a copy of the bitmap, because we're not going to wait
// for the thread to return. Be careful when using EndInvoke.
// It's possible to create a deadlock situation with the Stop
// button press.
BeginInvoke(new MethodInvoker(delegate() { ReportImage(a_szTag, a_szDg, a_szDat, a_szMsg, a_sts, a_bitmap, a_szFile, a_szTwimageinfo, a_abImage, a_iImageOffset); }));
return(TWAINCSToolkit.MSG.ENDXFER);
}
// We're processing end of scan...
if (a_bitmap == null)
{
// Report errors, but only if the driver's indicators have
// been turned off, otherwise we'll hit the user with multiple
// dialogs for the same error...
if (!m_blIndicators && (a_sts != TWAINCSToolkit.STS.SUCCESS))
{
MessageBox.Show("End of session status: " + a_sts);
}
// Get ready for the next scan...
SetButtons(EBUTTONSTATE.OPEN);
return(TWAINCSToolkit.MSG.ENDXFER);
}
// Display the image...
if (m_iUseBitmap == 0)
{
m_iUseBitmap = 1;
LoadImage(ref m_pictureboxImage1, ref m_graphics1, ref m_bitmapGraphic1, a_bitmap);
}
else
{
m_iUseBitmap = 0;
LoadImage(ref m_pictureboxImage2, ref m_graphics2, ref m_bitmapGraphic2, a_bitmap);
}
// All done...
return(TWAINCSToolkit.MSG.ENDXFER);
}
