Copy the entire contents of a PictureBox to the clipboard
VB does not allow you to copy the full picture of a Form, UserControl or PictureBox to the clipboard. If you use Clipboard.SetData, it only copies a bitmap loaded into these objects. You can get around this limitation and ensure the entire contents are copied, including any graphics you have drawn, by using API methods.
Start a new project in VB. Add a Command button and a PictureBox to the project's form. Make sure the Autoredraw property of the PictureBox is set to 1.
Then add a module and copy the following code into it.
' General functions: Private Type RECT Left As Long Top As Long Right As Long Bottom As Long End Type ' GDI functions: Private Declare Function BitBlt Lib "gdi32" _ (ByVal hDestDC As Long, _ ByVal x As Long, ByVal y As Long, _ ByVal nWidth As Long, ByVal nHeight As Long, _ ByVal hSrcDC As Long, _ ByVal xSrc As Long, ByVal ySrc As Long, _ ByVal dwRop As Long) As Long Private Const SRCCOPY = &HCC0020 ' (DWORD) dest = source ' Creates a memory DC Declare Function CreateCompatibleDC Lib "gdi32" _ (ByVal hDC As Long) As Long ' Creates a bitmap in memory: Declare Function CreateCompatibleBitmap Lib "gdi32" _ (ByVal hDC As Long, _ ByVal nWidth As Long, ByVal nHeight As Long) As Long ' Places a GDI Object into DC, returning the previous one: Declare Function SelectObject Lib "gdi32" _ (ByVal hDC As Long, ByVal hObject As Long) As Long ' Deletes a GDI Object: Declare Function DeleteObject Lib "gdi32" _ (ByVal hObject As Long) As Long ' Clipboard functions: Private Declare Function OpenClipboard Lib "USER32" _ (ByVal hWnd As Long) As Long Private Declare Function CloseClipboard Lib "USER32" () As Long Private Declare Function SetClipboardData Lib "USER32" _ (ByVal wFormat As Long, ByVal hMem As Long) As Long Private Declare Function EmptyClipboard Lib "USER32" () As Long Private Const CF_BITMAP = 2 Public Function CopyEntirePicture(ByRef objFrom As Object) As Boolean Dim lhDC As Long Dim lhBMP As Long Dim lhBMPOld As Long Dim lWidthPixels As Long Dim lHeightPixels As Long ' Create a DC compatible with the object we're copying ' from: lhDC = CreateCompatibleDC(objFrom.hDC) If (lhDC <> 0) Then ' Create a bitmap compatible with the object we're ' copying from: lWidthPixels = objFrom.ScaleX( _ objFrom.ScaleWidth, _ objFrom.ScaleMode, _ vbPixels) lHeightPixels = objFrom.ScaleY( _ objFrom.ScaleHeight, _ objFrom.ScaleMode, _ vbPixels) lhBMP = CreateCompatibleBitmap(objFrom.hDC, _ lWidthPixels, lHeightPixels) If (lhBMP <> 0) Then ' Select the bitmap into the DC we have created, ' and store the old bitmap that was there: lhBMPOld = SelectObject(lhDC, lhBMP) ' Copy the contents of objFrom to the bitmap: BitBlt lhDC, 0, 0, lWidthPixels, lHeightPixels, _ objFrom.hDC, 0, 0, SRCCOPY ' Remove the bitmap from the DC: SelectObject lhDC, lhBMPOld ' Now set the clipboard to the bitmap: OpenClipboard 0 EmptyClipboard SetClipboardData CF_BITMAP, lhBMP CloseClipboard ' We don't delete the Bitmap here - it is now owned ' by the clipboard and Windows will delete it for us ' when the clipboard changes or the program exits. End If ' Clear up the device context we created: DeleteObject lhDC End If End Function
To try out the method, add this code to the form:
Private Sub Command1_Click() CopyEntirePicture Picture1 End Sub Private Sub Form_Load() Dim iAs Long ' Draw something in the Picture box: With Picture1.Font .Name = "Arial" .Bold = True .Size = 24 End With For i = 1 To 20 Picture1.ForeColor = QBColor(i Mod 15) Picture1.Print "vbAccelerator" Next i End Sub
When the form loads, the picture box will have some text added to it. When you click the Command button, the entire picture box contents will be copied to the Clipboard, from where you can paste it into Paint, Word etc.