Like this article? We recommend
Like this article? We recommend
Like this article? We recommend
Like this article? We recommend
Loading Ink
Loading Ink back into the InkCollector is a trivial matter. Once you have the saved bytes available, you call the InkCollector.Ink.Load() method. Listing 6 shows you how the sample application uses an Open File dialog box to retrieve existing byte array stored in a file using Ink Serialization Format and then attaches the retrieved byte array to an Ink object, which is then assigned to the InkCollector.Ink property.
Listing 6 Open menu item click event handler calls the application’s Open() method
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
//Clear out any exisitng work using the custom Clear() method
this.Clear();
//Call the custom Open method, passing in the InkCollector
this.Open(inkCollector);
}
private void Open(InkCollector collector)
{
//Get a file open dialog
OpenFileDialog dlgOpen = new OpenFileDialog();
//Filter for Ink Serialization Format
dlgOpen.Filter = "ISF files (*.isf)|*.isf| All files (*.*)|*.*";
if (dlgOpen.ShowDialog() == DialogResult.OK)
{
//Get the Ink Stream
Stream stream = dlgOpen.OpenFile();
if (stream != null && stream.Length > 0)
{
//Make a byte array the size of the stream
byte[] bytes = new byte[stream.Length];
//Read the stream into the byte array
if (stream.Read(bytes, 0, bytes.Length) == stream.Length)
{
Ink ink = new Ink();
//Load the bytes into the newly created Ink object
ink.Load(bytes);
//Disable the InkCollector so that you can add the local
//Ink object that has the byte data
collector.Enabled = false;
//Assign the local Ink object to the InkCollector
collector.Ink = ink;
//Enable the InkCollector so that Ink can be added
collector.Enabled = true;
}
//Close up shops
stream.Close();
}
}
}