Exemplo n.º 1
0
        /****************************************************************************
        *                                                                          *
        *    Isolation of writing to the clipboard. It also provides               *
        *    the try-catch protection (as setting the clipboard for                *
        *    unknown reasons sometimes fail...).                                   *
        *                                                                          *
        ****************************************************************************/
        private static void setClipboard(string aClipboardStr,
                                         bool anAddToClipboard,
                                         out clipboardInfoStruct anOutclipboardInfo)
        {
            // bool anAddToClipboard = false
            //
            // Default parameters requires .NET 4.0...
            //
            // Otherwise:
            //
            //   Default parameter specifiers are not permitted

            anOutclipboardInfo.retries = 0;

            bool success = false;
            int  tries   = 0;

            while (!success)
            {
                try
                {
                    tries += 1;

                    string prefix = "";
                    if (anAddToClipboard)
                    {
                        prefix = System.Windows.Forms.Clipboard.GetText();
                    }

                    string textToSet = prefix + aClipboardStr;

                    // This fails sometimes. But why??
                    // System.Windows.Forms.Clipboard.SetText(textToSet);

                    clipboard.setText(textToSet);

                    success = true;
                }
                catch (System.Exception anExceptionObject)
                {
                    // 2017-10-15: Suppress the error for now by trying a
                    //             number of times. But we should really find
                    //             out why it is failing!

                    if (tries >= 30)
                    {
                        string errMsg1 = "Error: " + anExceptionObject.ToString() + "\n";
                        string errMsg2 =
                            "\n" + "Message: " + anExceptionObject.Message + "\n";

                        //string exceptionInfo = anExceptionObject.InnerException.ToString();
                        string msg =
                            "For unknown reasons the clipboard could not be " +
                            "changed when it was attempted to set it to the " +
                            "text (after trying " + tries.ToString() + " times) \"" +
                            aClipboardStr + "\". " +
                            System.Environment.NewLine + System.Environment.NewLine +
                            "Further information: " + errMsg1 + errMsg2;
                        System.Windows.Forms.MessageBox.Show(msg);

                        // Sample:
                        //
                        //   For unknown reasons the clipboard could not be changed when it was attempted
                        //   to set it to the text "JavaScript".
                        //
                        //
                        //   Further information: Error: System.Runtime.InteropServices.COMException (0x800401D0):
                        //                        OpenClipboard Failed (Exception from HRESULT: 0x800401D0 (CLIPBRD_E_CANT_OPEN))
                        //
                        //      at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
                        //
                        //      at System.Windows.Clipboard.CriticalSetDataObject(Object data, Boolean copy)
                        //
                        //      at System.Windows.Clipboard.SetDataInternal(String format, Object data)
                        //
                        //      at System.Windows.Clipboard.SetText(String text, TextDataFormat format)
                        //
                        //      at System.Windows.Clipboard.SetText(String text)
                        //
                        //      at OverflowHelper.platFormSpecific.clipboard.setText(String aTextToSet) in D:\dproj\OverflowHelper\OverflowHelper\OverflowHelper\Source\platFormSpecific\Clipboard.cs:line 120
                        //
                        //      at OverflowHelper.EditorOverflowApplication.setClipboard(String aClipboardStr, Boolean anAddToClipboard) in D:\dproj\OverflowHelper\OverflowHelper\OverflowHelper\Source\platFormSpecific\EditorOverfkowApplication.cs:line 117
                        //
                        //   Message: OpenClipboard Failed (Exception from HRESULT: 0x800401D0 (CLIPBRD_E_CANT_OPEN))
                    }
                }
                finally
                {
                    //Clean up.
                }
            } //while - retrying

            anOutclipboardInfo.retries = tries - 1;
        } //setClipboard()
Exemplo n.º 2
0
 /****************************************************************************
 *    Isolation of writing to the clipboard. It also provides               *
 *    the try-catch protection (as setting the clipboard for                *
 *    unknown reasons sometimes fail...).                                   *
 *                                                                          *
 ****************************************************************************/
 private static void setClipboard(string aClipboardStr,
                                  out clipboardInfoStruct anOutclipboardInfo)
 {
     setClipboard(aClipboardStr, false, out anOutclipboardInfo);
 }