In This Topic
The GdViewer class is designed to fully automate most viewing operations you require. The instance of this class can be used as an image viewer control to view supported files, images, PDF documents, as well as easily zoom, rotate, define display area, print or even create thumbnails of those loaded documents.
On the other hand, it can also be used as an interactive tool allowing you to add and edit solely GdPictureXMP annotations.
Syntax
'Declaration
<ToolboxBitmapAttribute(GdPicture14.GdViewer, "toolbox.bmp")>
<DesignerAttribute("System.Windows.Forms.Design.UserControlDocumentDesigner, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", System.ComponentModel.Design.IRootDesigner)>
<DesignerCategoryAttribute("UserControl")>
<DefaultEventAttribute("Load")>
<DefaultPropertyAttribute("Text")>
<DesignerSerializerAttribute("System.Windows.Forms.Design.ControlCodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.ComponentModel.Design.Serialization.CodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")>
<ToolboxItemFilterAttribute("System.Windows.Forms")>
Public NotInheritable Class GdViewer
Inherits System.Windows.Forms.UserControl
[ToolboxBitmap(GdPicture14.GdViewer, "toolbox.bmp")]
[Designer("System.Windows.Forms.Design.UserControlDocumentDesigner, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", System.ComponentModel.Design.IRootDesigner)]
[DesignerCategory("UserControl")]
[DefaultEvent("Load")]
[DefaultProperty("Text")]
[DesignerSerializer("System.Windows.Forms.Design.ControlCodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.ComponentModel.Design.Serialization.CodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
[ToolboxItemFilter("System.Windows.Forms")]
public sealed class GdViewer : System.Windows.Forms.UserControl
public class GdViewer = class(System.Windows.Forms.UserControl)sealed;
ToolboxBitmapAttribute(GdPicture14.GdViewer, "toolbox.bmp")
DesignerAttribute("System.Windows.Forms.Design.UserControlDocumentDesigner, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", System.ComponentModel.Design.IRootDesigner)
DesignerCategoryAttribute("UserControl")
DefaultEventAttribute("Load")
DefaultPropertyAttribute("Text")
DesignerSerializerAttribute("System.Windows.Forms.Design.ControlCodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.ComponentModel.Design.Serialization.CodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")
ToolboxItemFilterAttribute("System.Windows.Forms")
public sealed class GdViewer extends System.Windows.Forms.UserControl
[ToolboxBitmap(GdPicture14.GdViewer, "toolbox.bmp")]
[Designer("System.Windows.Forms.Design.UserControlDocumentDesigner, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", System.ComponentModel.Design.IRootDesigner)]
[DesignerCategory("UserControl")]
[DefaultEvent("Load")]
[DefaultProperty("Text")]
[DesignerSerializer("System.Windows.Forms.Design.ControlCodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.ComponentModel.Design.Serialization.CodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
[ToolboxItemFilter("System.Windows.Forms")]
public __gc __sealed class GdViewer : public System.Windows.Forms.UserControl
[ToolboxBitmap(GdPicture14.GdViewer, "toolbox.bmp")]
[Designer("System.Windows.Forms.Design.UserControlDocumentDesigner, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", System.ComponentModel.Design.IRootDesigner)]
[DesignerCategory("UserControl")]
[DefaultEvent("Load")]
[DefaultProperty("Text")]
[DesignerSerializer("System.Windows.Forms.Design.ControlCodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.ComponentModel.Design.Serialization.CodeDomSerializer, System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]
[ToolboxItemFilter("System.Windows.Forms")]
public ref class GdViewer sealed : public System.Windows.Forms.UserControl
Example
How to create and integrate the GdViewer control into your application.
'Define GdViewer object in your application.
Friend WithEvents GdViewer1 As GdViewer
'Create an instance.
GdViewer1 = New GdViewer()
'Set your preferred properties here.
GdViewer1.Name = "GdViewer1"
GdViewer1.SetBackgroundColor(GdViewer1.ARGBI(255, 245, 245, 220))
' ...
'Add to your application controls.
Controls.Add(GdViewer1)
'Probably the GdViewer1 instance is disposed of automatically in your application,
'but you can still do it this way.
'GdViewer1.Dispose()
//Define GdViewer object in your application.
internal GdViewer GdViewer1;
//Create an instance.
GdViewer1 = new GdViewer();
//Set your preferred properties here.
GdViewer1.Name = "GdViewer1";
GdViewer1.SetBackgroundColor(GdViewer1.ARGBI(255, 245, 245, 220));
// ...
//Add to your application controls.
Controls.Add(GdViewer1);
//Probably the GdViewer1 instance is disposed of automatically in your application,
//but you can still do it this way.
//GdViewer1.Dispose();
Inheritance Hierarchy
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.Control
System.Windows.Forms.ScrollableControl
System.Windows.Forms.ContainerControl
System.Windows.Forms.UserControl
GdPicture14.GdViewer
See Also
