Hi Suis,
Based on your post, my understanding of your question is that you need to get the image from the richtextbox control.
In this scenario we need to use use interoperability with Win32 Clipboard API to resolve this problem. We use clipboard to copy image and then get image from the clipboard. For more information about how to extract the image from richtextbox control, Please visit: http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=1453484&SiteId=1. You can use RichTextBox.Text to get all text in the richtextbox control. Hope this helps.
Best regards,
Riquel
Hi Suis,
This method only works well when you first select a image object in the richtextbox control. Here is the code snippet about this method. I modify it from the above thread by adding CloseClipboard() API.
Imports System.Drawing.Imaging Imports System.Runtime.InteropServices Public Class Form14 Public Const CF_ENHMETAFILE As Integer = 14 <DllImport("user32.dll", EntryPoint:="OpenClipboard", SetLastError:=True, ExactSpelling:=True, CallingConvention:=CallingConvention.StdCall)> _ Public Shared Function OpenClipboard(ByVal hWnd As IntPtr) As Boolean End Function <DllImport("user32.dll", EntryPoint:="GetClipboardData", SetLastError:=True, ExactSpelling:=True, CallingConvention:=CallingConvention.StdCall)> _ Public Shared Function GetClipboardData(ByVal uFormat As Integer) As IntPtr End Function <DllImport("user32.dll")> Private Shared Function CloseClipboard() As Boolean End Function Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load RichTextBox1.LoadFile("C:\testimg.rtf") End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click RichTextBox1.Copy() If OpenClipboard(Me.Handle) Then Try Dim MF As New Metafile(GetClipboardData(CF_ENHMETAFILE), True) MF.Save("C:\MF.bmp", ImageFormat.Bmp) CloseClipboard() Catch ex As Exception MessageBox.Show(ex.Message + "You need to select a image object") End Try End If End Sub End Class
Code Block
Best regards,
Riquel