Get Preview Bitmap of File Example (VB.NET)
This example shows how to get the preview bitmap of a file.
NOTE: If using the primary interop assembly
provided with SOLIDWORKS PDM Professional, see
Using .NET Framework 4.0 in
Stand-alone Applications.
'----------------------------------------------------------------------------
' Preconditions:
' 1. Start Microsoft Visual Studio.
' a. Click File > New > Project > Visual Basic > Windows Forms Application.
' b. Type GetPreviewBitmap in Name.
' c. Click Browse and navigate to the folder where to create the project.
' d. Click OK.
' e. Click Show All Files in the Solution Explorer toolbar and expand
' Form1.vb in the Solution Explorer.
' f. Replace the code in Form1.vb with this code.
' g. To create the
form, replace the code in Form1.Designer.vb with
' this code.
' 2. Add EPDM.Interop.epdm.dll as a reference (right-click the project
' name in the Solution Explorer, click Add Reference, click
' Assemblies > Framework in the left-side panel, browse to the top folder of
' your SOLIDWORKS PDM Professional installation, locate and click
' EPDM.Interop.epdm.dll, click Open, click Add, and click Close).
' 3. Right-click EPDM.Interop.epdm in References, click Properties, and set
' Embed Interop Types to False to handle methods that pass arrays of
' structures.
' 4. Ensure that the root folder of the vault contains an Autodesk DWG
file.
' 5. Click Debug > Start Debugging or press F5.
'
' Postconditions:
' 1. Displays the Get Preview Bitmap
dialog box.
' a. Select a vault view.
' b. Click Select file.
' c. In the Select File dialog:
' 1. Click a DWG file
inside the vault.
' 2. Click Open.
' d. Click Get
preview bitmap.
' Form1 displays the preview bitmap of
the selected file.
' 2. Close the
Get Preview Bitmap dialog box.
'----------------------------------------------------------------------------
'Form1.vb
Imports System.IO
Imports System.Xml.Serialization
Imports System.Collections
Imports System.Collections.Generic
Imports System.Data
Imports System.Diagnostics
Imports System.Windows.Forms
Imports System.ComponentModel
Imports EPDM.Interop.epdm
Public Class Form1
Private vault1 As IEdmVault5 = Nothing
Dim aFile As IEdmFile5
Dim retVal As Boolean
Public Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Try
Dim vault1 As IEdmVault5 = New EdmVault5()
Dim vault As IEdmVault8 = DirectCast(vault1, IEdmVault8)
Dim Views As EdmViewInfo() = Nothing
vault.GetVaultViews(Views, False)
VaultsComboBox.Items.Clear()
For Each View As EdmViewInfo In Views
VaultsComboBox.Items.Add(View.mbsVaultName)
Next
If VaultsComboBox.Items.Count > 0 Then
VaultsComboBox.Text = DirectCast(VaultsComboBox.Items(0), String)
End If
Catch ex As System.Runtime.InteropServices.COMException
MessageBox.Show("HRESULT = 0x" + ex.ErrorCode.ToString("X") + " " + ex.Message)
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
Public Sub SelectFiles_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SelectFiles.Click
Try
File1List.Items.Clear()
Dim vault2 As IEdmVault7 = Nothing
If vault1 Is Nothing Then
vault1 = New EdmVault5()
End If
vault2 = DirectCast(vault1, IEdmVault7)
If Not vault1.IsLoggedIn Then
vault1.LoginAuto(VaultsComboBox.Text, Me.Handle.ToInt32())
End If
'Set the initial directory in the Select File dialog
OpenFileDialog1.InitialDirectory = vault1.RootFolderPath
'Show the Select File dialog
Dim DialogResult As System.Windows.Forms.DialogResult = Nothing
DialogResult = OpenFileDialog1.ShowDialog()
If Not (DialogResult = System.Windows.Forms.DialogResult.OK) Then
' do nothing
Else
For Each FileName As String In OpenFileDialog1.FileNames
File1List.Items.Add(FileName)
aFile = vault1.GetFileFromPath(FileName)
Next
End If
Catch ex As System.Runtime.InteropServices.COMException
MessageBox.Show("HRESULT = 0x" + ex.ErrorCode.ToString("X") + " " + ex.Message)
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
Public Sub PreviewBitmap_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PreviewBitmap.Click
DrawBitmapPreview(aFile)
End Sub
Private Sub DrawBitmapPreview(ByVal file As IEdmFile5)
Try
Dim varEnum As IEdmEnumeratorVariable5
varEnum = file.GetEnumeratorVariable
Dim preview As IEdmBitmap5
preview = varEnum.GetThumbnail
If preview Is Nothing Then Exit Sub
preview.Draw(Me.Handle.ToInt32(), 45, 220, 0, 0)
Catch ex As System.Runtime.InteropServices.COMException
MessageBox.Show("HRESULT = 0x" + ex.ErrorCode.ToString("X") + " " + ex.Message)
Catch ex As Exception
MessageBox.Show(ex.Message)
End Try
End Sub
End Class
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'Form1.Designer.vb
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class Form1
Inherits System.Windows.Forms.Form
'Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
Try
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
Finally
MyBase.Dispose(disposing)
End Try
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.VaultsLabel = New System.Windows.Forms.Label()
Me.VaultsComboBox = New System.Windows.Forms.ComboBox()
Me.SelectFiles = New System.Windows.Forms.Button()
Me.File1List = New System.Windows.Forms.ListBox()
Me.PreviewBitmap = New System.Windows.Forms.Button()
Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog()
Me.SuspendLayout()
'
'VaultsLabel
'
Me.VaultsLabel.AutoSize = True
Me.VaultsLabel.Location = New System.Drawing.Point(36, 24)
Me.VaultsLabel.Name = "VaultsLabel"
Me.VaultsLabel.Size = New System.Drawing.Size(91, 13)
Me.VaultsLabel.TabIndex = 0
Me.VaultsLabel.Text = "Select vault view:"
'
'VaultsComboBox
'
Me.VaultsComboBox.FormattingEnabled = True
Me.VaultsComboBox.Location = New System.Drawing.Point(39, 40)
Me.VaultsComboBox.Name = "VaultsComboBox"
Me.VaultsComboBox.Size = New System.Drawing.Size(121, 21)
Me.VaultsComboBox.TabIndex = 1
'
'SelectFiles
'
Me.SelectFiles.Location = New System.Drawing.Point(39, 85)
Me.SelectFiles.Name = "SelectFiles"
Me.SelectFiles.Size = New System.Drawing.Size(191, 23)
Me.SelectFiles.TabIndex = 2
Me.SelectFiles.Text = "Select file..."
Me.SelectFiles.UseVisualStyleBackColor = True
'
'File1List
'
Me.File1List.FormattingEnabled = True
Me.File1List.HorizontalScrollbar = True
Me.File1List.Location = New System.Drawing.Point(40, 114)
Me.File1List.Name = "File1List"
Me.File1List.SelectionMode = System.Windows.Forms.SelectionMode.MultiExtended
Me.File1List.Size = New System.Drawing.Size(220, 43)
Me.File1List.TabIndex = 4
'
'PreviewBitmap
'
Me.PreviewBitmap.Location = New System.Drawing.Point(40, 183)
Me.PreviewBitmap.Name = "PreviewBitmap"
Me.PreviewBitmap.Size = New System.Drawing.Size(157, 23)
Me.PreviewBitmap.TabIndex = 6
Me.PreviewBitmap.Text = "Get preview bitmap"
Me.PreviewBitmap.UseVisualStyleBackColor = True
'
'OpenFileDialog1
'
Me.OpenFileDialog1.FileName = "OpenFileDialog1"
Me.OpenFileDialog1.Title = "Select File"
'
'Form1
'
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(629, 746)
Me.Controls.Add(Me.PreviewBitmap)
Me.Controls.Add(Me.File1List)
Me.Controls.Add(Me.SelectFiles)
Me.Controls.Add(Me.VaultsComboBox)
Me.Controls.Add(Me.VaultsLabel)
Me.Name = "Form1"
Me.Text = "Get Preview Bitmap"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents VaultsLabel As System.Windows.Forms.Label
Friend WithEvents VaultsComboBox As System.Windows.Forms.ComboBox
Friend WithEvents SelectFiles As System.Windows.Forms.Button
Friend WithEvents File1List As System.Windows.Forms.ListBox
Friend WithEvents PreviewBitmap As System.Windows.Forms.Button
Friend WithEvents OpenFileDialog1 As System.Windows.Forms.OpenFileDialog
End Class
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