printing MSchart in VB2005

printing MSchart in VB2005

• yousef.net

  I get the same error.

  It used to work with VB2003 standard, but after upgrading to VB2005 pro. the error was there.

  I tried
  Clipboard.GetData("Bitmap")
  Clipboard.GetDataObject
  and Clipboard.GetImage

  Nothing works when I use mschart.editcopy, but I know printing from the clipboard works with other images.

  please help

  
  

• frusciante

  Here is what I had to do to fix it....

  'Replace the following

  'm_oMSChart1.SelectPart(0, 0, 0, 0, 0)

  'm_oMSChart1.EditCopy()

  'Pcte = Clipboard.GetDataObject.GetData(DataFormats.Bitmap, True)

  'm_oGraphPic1.FormattedPicture = VB6.ImageToIPictureDisp(Pcte)

  'with

  m_oMSChart1.Backdrop.Fill.Brush.Style = MSChart20Lib.VtBrushStyle.VtBrushStyleSolid

  m_oMSChart1.Backdrop.Fill.Style = MSChart20Lib.VtFillStyle.VtFillStyleBrush

  System.Windows.Forms.Application.DoEvents()

  Pcte = Hardcopy.CreateBitmap(m_oMSChart1)

  m_oGraphPic1.FormattedPicture = VB6.ImageToIPictureDisp(Pcte)

  m_oMSChart1.Backdrop.Fill.Style = MSChart20Lib.VtFillStyle.VtFillStyleNull

  m_oMSChart1.Backdrop.Fill.Brush.Style = MSChart20Lib.VtBrushStyle.VtBrushStyleSolid

  and add these classes

  Public Class Hardcopy

  Public Shared Function CreateBitmap(ByVal Control As Control) As Bitmap

  Dim gDest As Graphics

  Dim hdcDest As IntPtr

  Dim hdcSrc As Integer

  Dim hWnd As Integer = Control.Handle.ToInt32

  CreateBitmap = New Bitmap(Control.Width, Control.Height)

  gDest = Graphics.FromImage(CreateBitmap)

  hdcSrc = Win32.GetWindowDC(hWnd)

  hdcDest = gDest.GetHdc

  Win32.BitBlt(hdcDest.ToInt32, 0, 0, Control.Width, Control.Height, hdcSrc, 0, 0, Win32.SRCCOPY)

  gDest.ReleaseHdc(hdcDest)

  Win32.ReleaseDC(hWnd, hdcSrc)

  End Function

  End Class

  Public Class Win32

  Public Declare Function BitBlt Lib "gdi32" Alias "BitBlt" (ByVal hDestDC As Integer, ByVal x As Integer, ByVal y As Integer, ByVal nWidth As Integer, ByVal nHeight As Integer, ByVal hSrcDC As Integer, ByVal xSrc As Integer, ByVal ySrc As Integer, ByVal dwRop As Integer) As Integer

  Public Declare Function GetWindowDC Lib "user32" Alias "GetWindowDC" (ByVal hwnd As Integer) As Integer

  Public Declare Function ReleaseDC Lib "user32" Alias "ReleaseDC" (ByVal hwnd As Integer, ByVal hdc As Integer) As Integer

  Public Const SRCCOPY As Integer = &HCC0020

  End Class

  
  

• SusanHX

  That didn't work for me. I had to use Win32 API calls to solve the problem:
  
  
  using System.Runtime.InteropServices;
  ...
  
  //copy the chart bitmap to the clipboard
  MSChart1.EditCopy();
  
  Application.DoEvents();
  
  //open the clipboard
  if (Win32ClipboardAPI.OpenClipboard(IntPtr.Zero))
  {
  //check that it has recognized the bitmap
  if (Win32ClipboardAPI.IsClipboardFormatAvailable(Win32ClipboardAPI.CF_BITMAP))
  {
  //Get the pointer for the current Clipboard Data
  IntPtr bmptr = Win32ClipboardAPI.GetClipboardData(Win32ClipboardAPI.CF_BITMAP);
  
  if (bmptr != IntPtr.Zero)
  {
  //retrieve the bitmap
  Bitmap chartCapture = Bitmap.FromHbitmap(bmptr);
  .....
  
  //tidy up
  chartCapture.Dispose();
  }
  }
  
  //Close the clipboard and release unused resources
  Win32ClipboardAPI.CloseClipboard();
  }
  
  
  private class Win32ClipboardAPI
  {
  public const uint CF_BITMAP = 2;
  
  [DllImport("user32.dll")]
  public static extern bool OpenClipboard(IntPtr hWndNewOwner);
  
  [DllImport("user32.dll")]
  public static extern IntPtr GetClipboardData(uint uFormat);
  
  [DllImport("user32.dll")]
  public static extern bool CloseClipboard();
  
  [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
  public static extern bool IsClipboardFormatAvailable(uint format);
  }
  
  
  

•  JD 

  i am using panel control and make it container of Mschart control and to take copy of mschart i use panel.darwtobitmap().

  It is not working properly, copies only boundary of mschart control.

  
  
  

• gfs

  You also can place the mschart control in a panel and use the panel's drawtobitmap method to get an image of the chart.
  
  
  
• printing MSchart in VB2005