/// <summary>
/// Get the current underlying version for wkhtmltopdf.dll
/// </summary>
/// <returns>Version String</returns>
public string WkHtmlToPdfVersion()
{
string version = string.Empty;
version = Marshal.PtrToStringAnsi(WkHtmlToPdfImports.wkhtmltopdf_version());
return(version);
}
protected void ProgressChangedCallback(IntPtr converter)
{
IntPtr progressStrPtr = WkHtmlToPdfImports.wkhtmltopdf_progress_string(converter);
string progressStr = Marshal.PtrToStringAnsi(progressStrPtr);
//if (OnProgressChanged != null)
//{
// IntPtr progressStrPtr = WkHtmlToPdfImports.wkhtmltopdf_progress_string(converter);
// string progressStr = Marshal.PtrToStringAnsi(progressStrPtr);
// OnProgressChanged(progressStr);
//}
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
}
// free native resources if there are any.
if (loaded)
{
WkHtmlToPdfImports.wkhtmltopdf_deinit();
}
}
protected void PhaseChangedCallback(IntPtr converter)
{
int currentPhase = WkHtmlToPdfImports.wkhtmltopdf_current_phase(converter);
int phaseCount = WkHtmlToPdfImports.wkhtmltopdf_phase_count(converter);
IntPtr phaseDescriptionStrPtr = WkHtmlToPdfImports.wkhtmltopdf_phase_description(converter, currentPhase);
string phaseDescriptionStr = Marshal.PtrToStringAnsi(phaseDescriptionStrPtr);
//if (OnPhaseChanged != null)
//{
// int currentPhase = WkHtmlToPdfImports.wkhtmltopdf_current_phase(converter);
// int phaseCount = WkHtmlToPdfImports.wkhtmltopdf_phase_count(converter);
// IntPtr phaseDescriptionStrPtr = WkHtmlToPdfImports.wkhtmltopdf_phase_description(converter, currentPhase);
// string phaseDescriptionStr = Marshal.PtrToStringAnsi(phaseDescriptionStrPtr);
// OnPhaseChanged(currentPhase, phaseCount, phaseDescriptionStr);
//}
}
protected byte[] ConvertHtmlToPdf(PdfConverterGlobalSettings globalSettings, PdfConverterObjectSettings objectSettings, byte[] data = null)
{
byte[] resultBuffer = null;
lock (_converterRoot)
{
try
{
Dictionary <string, string> sGlobalSettings = ObjectToDictionaryConverter.Convert(globalSettings);
Dictionary <string, string> sObjectSettings = ObjectToDictionaryConverter.Convert(objectSettings);
IntPtr globalSettingsPtr = WkHtmlToPdfImports.wkhtmltopdf_create_global_settings();
GlobalSettingsPtr = globalSettingsPtr;
foreach (var globalSetting in sGlobalSettings)
{
WkHtmlToPdfImports.wkhtmltopdf_set_global_setting(globalSettingsPtr, globalSetting.Key, globalSetting.Value);
}
IntPtr objectSettingsPtr = WkHtmlToPdfImports.wkhtmltopdf_create_object_settings();
ObjectSettingsPtr = objectSettingsPtr;
foreach (var objectSetting in sObjectSettings)
{
WkHtmlToPdfImports.wkhtmltopdf_set_object_setting(objectSettingsPtr, objectSetting.Key, objectSetting.Value);
}
IntPtr converterPtr = WkHtmlToPdfImports.wkhtmltopdf_create_converter(globalSettingsPtr);
ConverterPtr = converterPtr;
//Set Callbacks
WkHtmlToPdfImports.wkhtmltopdf_set_progress_changed_callback(converterPtr, ProgressChangedCallback);
WkHtmlToPdfImports.wkhtmltopdf_set_phase_changed_callback(converterPtr, PhaseChangedCallback);
WkHtmlToPdfImports.wkhtmltopdf_set_error_callback(converterPtr, ErrorCallback);
WkHtmlToPdfImports.wkhtmltopdf_set_warning_callback(converterPtr, WarningCallback);
WkHtmlToPdfImports.wkhtmltopdf_add_object(converterPtr, objectSettingsPtr, data);
if (!WkHtmlToPdfImports.wkhtmltopdf_convert(converterPtr))
{
int errorCode = WkHtmlToPdfImports.wkhtmltopdf_http_error_code(converterPtr);
throw new WkHtmlToPdfException(errorCode);
}
IntPtr dataPtr = IntPtr.Zero;
int resultLen = WkHtmlToPdfImports.wkhtmltopdf_get_output(converterPtr, out dataPtr);
if (resultLen > 0)
{
resultBuffer = new byte[resultLen];
Marshal.Copy(dataPtr, resultBuffer, 0, resultLen);
}
}
finally
{
if (GlobalSettingsPtr != IntPtr.Zero)
{
WkHtmlToPdfImports.wkhtmltopdf_destroy_global_settings(GlobalSettingsPtr);
GlobalSettingsPtr = IntPtr.Zero;
}
if (ObjectSettingsPtr != IntPtr.Zero)
{
WkHtmlToPdfImports.wkhtmltopdf_destroy_object_settings(ObjectSettingsPtr);
ObjectSettingsPtr = IntPtr.Zero;
}
if (ConverterPtr != IntPtr.Zero)
{
WkHtmlToPdfImports.wkhtmltopdf_destroy_converter(ConverterPtr);
ConverterPtr = IntPtr.Zero;
}
}
}
return(resultBuffer);
}
private DotNetCorePdf()
{
loaded = true;
WkHtmlToPdfImports.wkhtmltopdf_init(1);
}