Take the following steps to create and run a program that implements non-automated annotations:
- Start Visual Studio .NET.
- Choose File->New->Project… from the menu.
- In the New Project dialog box, choose either "Visual C# Projects" or "Visual Basic Projects" in the Projects Type List, and choose "Windows Application " in the Templates List.
- Type the project name as "Implementing Non Automated Annotation" in the Project Name field, and then choose OK. If desired, type a new location for your project or select a directory using the Browse button, and then choose OK .
- In the "Solution Explorer" window, right-click on the "References" folder, and select "Add Reference…" from the context menu. In the "Add Reference" dialog box, select the ".NET" tab and browse to Leadtools For .NET "<LEADTOOLS_INSTALLDIR>\Bin\DotNet\Win32 " folder and select the following DLLs:
- Leadtools.dll
- Leadtools.Annotations.dll
- Leadtools.Codecs.dll
- Leadtools.Codecs.Cmp.dll
- Leadtools.WinForms.dll
Click the Select button and then press the OK button to add the above DLLs to the application.
- Make sure Form1 is in design view. Go to the toolbox (View->Toolbox) and Drag and drop an instance of RasterImageViewer to the form. If you do not have RasterImageViewer in your toolbox, select Tools->Add Remove Toolbox Items from the menu. Click Browse and then select Leadtools.WinForms.DLL from "<LEADTOOLS_INSTALLDIR>\Bin\DotNet\Win32" and then click Open and then click OK.
- Change the following properties:
- Switch to Form1 code view (right-click Form1 in the solution explorer then select View Code ) and add the following lines at the beginning of the file:
[Visual Basic]
Imports Leadtools
Imports Leadtools.Annotations
Imports Leadtools.Codecs
Imports Leadtools.WinForms
[C#]
using Leadtools;
using Leadtools.Annotations;
using Leadtools.Codecs;
using Leadtools.WinForms;
- Declare the following private variable:
[Visual Basic]
' Annotation container object
Private annContainerObj As AnnContainer
[C#]
// Annotation container object
private AnnContainer annContainerObj;
- Add an event handler to the Form1 Load event and code it as follows:
[Visual Basic]
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' intitialize a new RasterCodecs object
Dim codecs As New RasterCodecs()
' load the main image into our viewer
rasterImageViewer1.Image = codecs.Load("C:\Users\Public\Documents\LEADTOOLS Images\Sample1.cmp")
If (Not IsNothing(RasterImageViewer1.Image)) Then
' initialize the AnnContainer object and associate it with rasterImageViewer1 image
annContainerObj = New AnnContainer
annContainerObj.Bounds = New AnnRectangle(0, 0, RasterImageViewer1.ImageSize.Width, RasterImageViewer1.ImageSize.Height, AnnUnit.Pixel)
annContainerObj.Name = "Container"
annContainerObj.Visible = True
annContainerObj.UnitConverter = New AnnUnitConverter(96, 96)
' create Annotation Note Object and add it to the container
annContainerObj.Objects.Add(CreateAnnNoteObject(New AnnRectangle(annContainerObj.Bounds.Right / 2, annContainerObj.Bounds.Bottom / 2, (annContainerObj.Bounds.Right / 4) - 1, (annContainerObj.Bounds.Bottom / 4) - 1)))
End If
End Sub
[C#]
private void Form1_Load(object sender, System.EventArgs e)
{
// intitialize a new RasterCodecs object
RasterCodecs codecs = new RasterCodecs();
// load the main image into our viewer
rasterImageViewer1.Image = codecs.Load(@"C:\Users\Public\Documents\LEADTOOLS Images\Sample1.cmp");
if(rasterImageViewer1.Image != null)
{
// initialize the AnnContainer object and associate it with rasterImageViewer1 image
annContainerObj = new AnnContainer();
annContainerObj.Bounds = new AnnRectangle(0, 0, rasterImageViewer1.ImageSize.Width, rasterImageViewer1.ImageSize.Height, AnnUnit.Pixel);
annContainerObj.Name = "Container";
annContainerObj.Visible = true;
annContainerObj.UnitConverter = new AnnUnitConverter(96, 96);
// create Annotation Note Object and add it to the container
annContainerObj.Objects.Add(CreateAnnNoteObject(new AnnRectangle(annContainerObj.Bounds.Right/2, annContainerObj.Bounds.Bottom/2, (annContainerObj.Bounds.Right/4) - 1, (annContainerObj.Bounds.Bottom/4) - 1)));
}
}
- Add an event handler to the rasterImageViewer1 TransformChanged event and code it as follows:
[Visual Basic]
Private Sub RasterImageViewer1_TransformChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RasterImageViewer1.TransformChanged
If (Not IsNothing(annContainerObj)) Then
annContainerObj.Transform = RasterImageViewer1.Transform.Clone()
End If
End Sub
[C#]
private void rasterImageViewer1_TransformChanged(object sender, System.EventArgs e)
{
if(annContainerObj != null)
annContainerObj.Transform = rasterImageViewer1.Transform.Clone();
}
- Add an event handler to the rasterImageViewer1 PostImagePaint event and code it as follows:
[Visual Basic]
Private Sub RasterImageViewer1_PostImagePaint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles RasterImageViewer1.PostImagePaint
If (Not IsNothing(annContainerObj)) Then
annContainerObj.Draw(e.Graphics)
End If
End Sub
[C#]
private void rasterImageViewer1_PostImagePaint(object sender, System.Windows.Forms.PaintEventArgs e)
{
if(annContainerObj != null)
annContainerObj.Draw(e.Graphics);
}
- Add the CreateAnnNoteObject function code to class Form1:
[Visual Basic]
Private Function CreateAnnNoteObject(ByVal boundingRect As AnnRectangle) As AnnObject
Dim annNoteObj As AnnNoteObject = New AnnNoteObject
annNoteObj.Text = "This is my Text"
annNoteObj.TextColor = Color.FromArgb(255, 0, 0)
annNoteObj.Pen = New AnnPen(Color.Red, New AnnLength(3))
annNoteObj.Brush = New AnnSolidBrush(Color.Yellow)
annNoteObj.Font = New AnnFont(New FontFamily("Arial"), New AnnLength(14), FontStyle.Bold)
annNoteObj.Hyperlink = "Notepad.exe"
annNoteObj.Bounds = boundingRect
Return annNoteObj
End Function
[C#]
private AnnObject CreateAnnNoteObject( AnnRectangle boundingRect)
{
AnnNoteObject annNoteObj = new AnnNoteObject();
annNoteObj.Text = "This is my Text";
annNoteObj.TextColor = Color.FromArgb(255, 0, 0);
annNoteObj.Pen = new AnnPen(Color.Red , new AnnLength(3));
annNoteObj.Brush = new AnnSolidBrush(Color.Yellow);
annNoteObj.Font = new AnnFont(new FontFamily("Arial"), new AnnLength(14), FontStyle.Bold);
annNoteObj.Hyperlink = "Notepad.exe";
annNoteObj.Bounds = boundingRect;
return annNoteObj;
}
- Build, and Run the program to test it.
