public void Start()
{
// there can be multiple Ghostscript versions installed on the system
// and we can choose which one we will use. In this sample we will use
// the last installed Ghostscript version. We can choose if we want to
// use GPL or AFPL (commercial) version of the Ghostscript. By setting
// the parameters below we told that we want to fetch the last version
// of the GPL or AFPL Ghostscript and if both are available we prefer
// to use GPL version.
_lastInstalledVersion =
GhostscriptVersionInfo.GetLastInstalledVersion(
GhostscriptLicense.GPL | GhostscriptLicense.AFPL,
GhostscriptLicense.GPL);
// create a new instance of the viewer
_viewer = new GhostscriptViewer();
// set the display update interval to 10 times per second. This value
// is milliseconds based and updating display every 100 milliseconds
// is optimal value. The smaller value you set the rasterizing will
// take longer as DisplayUpdate event will be raised more often.
_viewer.ProgressiveUpdateInterval = 100;
// attach three main viewer events
_viewer.DisplaySize += new GhostscriptViewerViewEventHandler(_viewer_DisplaySize);
_viewer.DisplayUpdate += new GhostscriptViewerViewEventHandler(_viewer_DisplayUpdate);
_viewer.DisplayPage += new GhostscriptViewerViewEventHandler(_viewer_DisplayPage);
// open PDF file using the last Ghostscript version. If you want to use
// multiple viewers withing a single process then you need to pass 'true'
// value as the last parameter of the method below in order to tell the
// viewer to load Ghostscript from the memory and not from the disk.
_viewer.Open("E:\test\test.pdf",_lastInstalledVersion, false);
}
public void Start()
{
// For users who distribute their gsdll32.dll or gsdll64.dll with their application: Ghostscript.NET by default
// peeks into the registry to collect all installed Ghostscript locations. If you want to use ghostscript dll from
// a custom location, it's recommended to do something like this:
GhostscriptVersionInfo gvi = new GhostscriptVersionInfo(
new Version(0, 0, 0),
@"e:\dumyfolder\myapplication\gsdll32.dll",
string.Empty,
GhostscriptLicense.GPL);
// and then pass that GhostscriptVersionInfo to required constructor or method
// sample #1
GhostscriptProcessor proc = new GhostscriptProcessor(gvi);
// sample #2
GhostscriptRasterizer rast = new GhostscriptRasterizer();
rast.Open("test.pdf", gvi, true);
// sample #3
GhostscriptViewer view = new GhostscriptViewer();
view.Open("test.pdf", gvi, true);
}
public GhostscriptRasterizer()
{
_viewer = new GhostscriptViewer();
_viewer.ShowPageAfterOpen = false;
_viewer.ProgressiveUpdate = false;
_viewer.DisplayPage += new GhostscriptViewerViewEventHandler(_viewer_DisplayPage);
}
public Reader()
{
InitializeComponent();
_viewer = new GhostscriptViewer();
_viewer.DisplaySize += new GhostscriptViewerViewEventHandler(_viewer_DisplaySize);
_viewer.DisplayUpdate += new GhostscriptViewerViewEventHandler(_viewer_DisplayUpdate);
_viewer.DisplayPage += new GhostscriptViewerViewEventHandler(_viewer_DisplayPage);
}
public GhostscriptRasterizer(GhostscriptStdIO stdIo)
{
_viewer = new GhostscriptViewer();
_viewer.ShowPageAfterOpen = false;
_viewer.ProgressiveUpdate = false;
_viewer.DisplayPage += new GhostscriptViewerViewEventHandler(_viewer_DisplayPage);
if (stdIo != null)
{
_viewer.AttachStdIO(stdIo);
}
}
public GhostscriptRasterizer(GhostscriptViewer viewerInstance)
{
if (viewerInstance == null)
{
throw new ArgumentNullException("viewerInstance");
}
_viewer = viewerInstance;
_gsViewState = _viewer.SaveState();
_viewer.ProgressiveUpdate = false;
_viewer.DisplayPage += new GhostscriptViewerViewEventHandler(_viewer_DisplayPage);
}
public FMain()
{
InitializeComponent();
this.Text = Program.NAME;
pbPage.Width = 100;
pbPage.Height = 100;
_viewer = new GhostscriptViewer();
_viewer.DisplaySize += new GhostscriptViewerViewEventHandler(_viewer_DisplaySize);
_viewer.DisplayUpdate += new GhostscriptViewerViewEventHandler(_viewer_DisplayUpdate);
_viewer.DisplayPage += new GhostscriptViewerViewEventHandler(_viewer_DisplayPage);
}
public FMain()
{
InitializeComponent();
this.Text = Program.NAME;
pbPage.Width = 100;
pbPage.Height = 100;
_viewer = new GhostscriptViewer();
_viewer.DisplaySize += new GhostscriptViewerViewEventHandler(_viewer_DisplaySize);
_viewer.DisplayUpdate += new GhostscriptViewerViewEventHandler(_viewer_DisplayUpdate);
_viewer.DisplayPage += new GhostscriptViewerViewEventHandler(_viewer_DisplayPage);
}
private void FMain_Load(object sender, EventArgs e)
{
txtOutput.AppendText("Is64BitOperatingSystem: " + System.Environment.Is64BitOperatingSystem.ToString() + "\r\n");
txtOutput.AppendText("Is64BitProcess: " + System.Environment.Is64BitProcess.ToString() + "\r\n");
_preview.Show();
this.Show();
GhostscriptVersionInfo gvi = GhostscriptVersionInfo.GetLastInstalledVersion();
_viewer = new GhostscriptViewer();
_viewer.AttachStdIO(_stdioHandler);
_viewer.DisplaySize += new GhostscriptViewerViewEventHandler(_viewer_DisplaySize);
_viewer.DisplayUpdate += new GhostscriptViewerViewEventHandler(_viewer_DisplayUpdate);
_viewer.DisplayPage += new GhostscriptViewerViewEventHandler(_viewer_DisplayPage);
_viewer.Open(gvi, true);
}
public GhostscriptViewerDefaultFormatHandler(GhostscriptViewer viewer) : base(viewer)
{
}
public GhostscriptViewerDisplayHandler(GhostscriptViewer viewer)
{
_viewer = viewer;
}
public GhostscriptViewerStdIOHandler(GhostscriptViewer viewer, GhostscriptViewerFormatHandler formatHandler) : base(true, true, true)
{
_viewer = viewer;
_formatHandler = formatHandler;
}
public GhostscriptViewerStdIOHandler(GhostscriptViewer viewer, GhostscriptViewerFormatHandler formatHandler) : base(true, true, true)
{
_viewer = viewer;
_formatHandler = formatHandler;
}
public GhostscriptViewerPdfFormatHandler(GhostscriptViewer viewer) : base(viewer)
{
}
public GhostscriptViewerDisplayHandler(GhostscriptViewer viewer)
{
_viewer = viewer;
}
private void FMain_FormClosed(object sender, FormClosedEventArgs e)
{
_viewer.Dispose();
_viewer = null;
}
public GhostscriptViewerDefaultFormatHandler(GhostscriptViewer viewer) : base(viewer) { }
public GhostscriptViewerFormatHandler(GhostscriptViewer viewer)
{
_viewer = viewer;
}
public GhostscriptViewerPdfFormatHandler(GhostscriptViewer viewer) : base(viewer) { }
public GhostscriptViewerDisplayHandler(GhostscriptViewer viewer) : base(viewer.Interpreter.GhostscriptLibrary)
{
_viewer = viewer;
}
public GhostscriptViewerFormatHandler(GhostscriptViewer viewer)
{
_viewer = viewer;
}
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (disposing)
{
if (_gsViewState == null)
{
if (_viewer != null)
{
_viewer.Dispose();
_viewer = null;
}
}
else
{
_viewer.RestoreState(_gsViewState);
}
}
_disposed = true;
}
}
