private byte[] _Convert(string inputHtml)
{
var converter = IntPtr.Zero;
var errorCb = new NativeCalls.wkhtmltopdf_str_callback(OnError);
var warnCb = new NativeCalls.wkhtmltopdf_str_callback(OnWarning);
var phaseCb = new NativeCalls.wkhtmltopdf_void_callback(OnPhaseChanged);
var progressCb = new NativeCalls.wkhtmltopdf_int_callback(OnProgressChanged);
var finishCb = new NativeCalls.wkhtmltopdf_bool_callback(OnFinished);
try
{
var gSettings = _BuildGlobalSettings();
var oSettings = _BuildObjectsettings();
converter = _BuildConverter(gSettings, oSettings, inputHtml);
_errorString = new StringBuilder();
NativeCalls.wkhtmltopdf_set_error_callback(converter, errorCb);
NativeCalls.wkhtmltopdf_set_warning_callback(converter, warnCb);
NativeCalls.wkhtmltopdf_set_phase_changed_callback(converter, phaseCb);
NativeCalls.wkhtmltopdf_set_progress_changed_callback(converter, progressCb);
NativeCalls.wkhtmltopdf_set_finished_callback(converter, finishCb);
OnBegin(NativeCalls.wkhtmltopdf_phase_count(converter));
if (NativeCalls.wkhtmltopdf_convert(converter) == 0)
{
var msg = string.Format("HtmlToPdf conversion failed: {0}", _errorString.ToString());
throw new ConverterException(msg);
}
if (!string.IsNullOrEmpty(GlobalSettings.Out))
{
return(null);
}
_Log.Debug("CONVERSION DONE.. getting output.");
// Get output from internal buffer..
IntPtr tmp = IntPtr.Zero;
var ret = NativeCalls.wkhtmltopdf_get_output(converter, out tmp);
var output = new byte[ret.ToInt32()];
Marshal.Copy(tmp, output, 0, output.Length);
return(output);
}
catch
{
// Dispose un-managed resources..
try
{
NativeCalls.wkhtmltopdf_deinit();
}
catch (DllNotFoundException)
{
// We may not be initialized yet
}
throw;
}
finally
{
if (converter != IntPtr.Zero)
{
NativeCalls.wkhtmltopdf_set_error_callback(converter, null);
NativeCalls.wkhtmltopdf_set_warning_callback(converter, null);
NativeCalls.wkhtmltopdf_set_phase_changed_callback(converter, null);
NativeCalls.wkhtmltopdf_set_progress_changed_callback(converter, null);
NativeCalls.wkhtmltopdf_set_finished_callback(converter, null);
NativeCalls.wkhtmltopdf_destroy_converter(converter);
converter = IntPtr.Zero;
}
}
}
private byte[] _Convert(string inputHtml)
{
var converter = IntPtr.Zero;
_errorCallback = OnError;
_warnCallback = OnWarning;
_phaseCallback = OnPhaseChanged;
_progressCallback = OnProgressChanged;
_finishCallback = OnFinished;
try
{
var gSettings = _BuildGlobalSettings();
var oSettings = _BuildObjectsettings();
converter = _BuildConverter(gSettings, oSettings, inputHtml);
_errorString = new StringBuilder();
NativeCalls.wkhtmltopdf_set_error_callback(converter, _errorCallback);
NativeCalls.wkhtmltopdf_set_warning_callback(converter, _warnCallback);
NativeCalls.wkhtmltopdf_set_phase_changed_callback(converter, _phaseCallback);
NativeCalls.wkhtmltopdf_set_progress_changed_callback(converter, _progressCallback);
NativeCalls.wkhtmltopdf_set_finished_callback(converter, _finishCallback);
OnBegin(NativeCalls.wkhtmltopdf_phase_count(converter));
if (NativeCalls.wkhtmltopdf_convert(converter) == 0)
{
var msg = string.Format("HtmlToPdf conversion failed: {0}", _errorString.ToString());
throw new ConverterException(msg);
}
if (!string.IsNullOrEmpty(GlobalSettings.Out))
{
return(null);
}
_Log.Debug("CONVERSION DONE.. getting output.");
// Get output from internal buffer..
IntPtr tmp = IntPtr.Zero;
var ret = NativeCalls.wkhtmltopdf_get_output(converter, out tmp);
var output = new byte[ret.ToInt32()];
Marshal.Copy(tmp, output, 0, output.Length);
return(output);
}
finally
{
if (converter != IntPtr.Zero)
{
NativeCalls.wkhtmltopdf_set_error_callback(converter, null);
NativeCalls.wkhtmltopdf_set_warning_callback(converter, null);
NativeCalls.wkhtmltopdf_set_phase_changed_callback(converter, null);
NativeCalls.wkhtmltopdf_set_progress_changed_callback(converter, null);
NativeCalls.wkhtmltopdf_set_finished_callback(converter, null);
NativeCalls.wkhtmltopdf_destroy_converter(converter);
converter = IntPtr.Zero;
}
}
}