Binaryworld - Let the user add tab characters to a RichTextBox control ... [ VB -> Controls-RichText ]

Here's a simple method to programmatically insert an image into a RichTextBox control, by copying it into the clipboard and then pasting it into the control:

Click here to copy the following block

Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal _
  hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, _
  lParam As Any) As Long
Private Const WM_PASTE = &H302

Sub InsertPictureInRichTextBox(RTB As RichTextBox, Picture As StdPicture)
  ' copy into the clipboard
  ' Copy the picture into the clipboard.
  Clipboard.Clear
  Clipboard.SetData Picture
  ' paste into the RichTextBox control
  SendMessage RTB.hwnd, WM_PASTE, 0, 0
End Sub

You can load the picture from another control (a PictureBox, for example), or directly from a file using the LoadPicture function:

Click here to copy the following block

InsertPictureInRichTextBox RichTextBox1, LoadPicture("c:\winnt\coffee bean.bmp")