/****************************************************************************
* *
* 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()
/****************************************************************************
* 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);
}