/// <summary>
/// Create a byte[] from the image by saving it to a memory stream.
/// Should be avoided if possible, as this uses a lot of memory.
/// </summary>
/// <returns>byte[]</returns>
public byte[] ToByteArray()
{
using (MemoryStream stream = new MemoryStream()) {
ImageOutput.SaveToStream(_surface, stream, _outputSettings);
return(stream.ToArray());
}
}
/// <summary>
/// Create a Base64String from the Surface by saving it to a memory stream and converting it.
/// Should be avoided if possible, as this uses a lot of memory.
/// </summary>
/// <returns>string</returns>
public string ToBase64String(Base64FormattingOptions formattingOptions)
{
using (MemoryStream stream = new MemoryStream()) {
ImageOutput.SaveToStream(_surface, stream, _outputSettings);
return(Convert.ToBase64String(stream.GetBuffer(), 0, (int)stream.Length, formattingOptions));
}
}
/// <summary>
/// Create a byte[] from the image by saving it to a memory stream.
/// Should be avoided if possible, as this uses a lot of memory.
/// </summary>
/// <returns>byte[]</returns>
public byte[] ToByteArray()
{
using (MemoryStream stream = new MemoryStream()) {
ImageOutput.SaveToStream(bitmap, null, stream, outputSettings);
return(stream.ToArray());
}
}
/// <summary>
/// Create a Base64String from the image by saving it to a memory stream and converting it.
/// Should be avoided if possible, as this uses a lot of memory.
/// </summary>
/// <returns>string</returns>
public string ToBase64String(Base64FormattingOptions formattingOptions)
{
using (MemoryStream stream = new MemoryStream()) {
ImageOutput.SaveToStream(bitmap, null, stream, outputSettings);
return(System.Convert.ToBase64String(stream.GetBuffer(), 0, (int)stream.Length, formattingOptions));
}
}
/// <summary>
/// Write Multipart Form Data directly to the HttpWebRequest response stream
/// </summary>
/// <param name="boundary">Multipart separator</param>
/// <param name="name">Name of the thing</param>
/// <param name="formDataStream">Stream to write to</param>
public void WriteFormDataToStream(string boundary, string name, Stream formDataStream)
{
// Add just the first part of this param, since we will write the file data directly to the Stream
string header = $"--{boundary}\r\nContent-Disposition: form-data; name=\"{name}\"; filename=\"{Filename ?? name}\";\r\nContent-Type: {ContentType}\r\n\r\n";
formDataStream.Write(Encoding.UTF8.GetBytes(header), 0, Encoding.UTF8.GetByteCount(header));
ImageOutput.SaveToStream(_surface, formDataStream, _outputSettings);
}
/// <summary>
/// Write Multipart Form Data directly to the HttpWebRequest response stream
/// </summary>
/// <param name="boundary">Multipart separator</param>
/// <param name="name">Name of the thing</param>
/// <param name="formDataStream">Stream to write to</param>
public void WriteFormDataToStream(string boundary, string name, Stream formDataStream)
{
// Add just the first part of this param, since we will write the file data directly to the Stream
string header = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"; filename=\"{2}\";\r\nContent-Type: {3}\r\n\r\n",
boundary,
name,
fileName ?? name,
"image/" + outputSettings.Format);
formDataStream.Write(Encoding.UTF8.GetBytes(header), 0, Encoding.UTF8.GetByteCount(header));
ImageOutput.SaveToStream(surface, formDataStream, outputSettings);
}
public static void SetClipboardData(ISurface surface)
{
DataObject dataObject = new DataObject();
// This will work for Office and most other applications
//ido.SetData(DataFormats.Bitmap, true, image);
MemoryStream dibStream = null;
MemoryStream dibV5Stream = null;
MemoryStream pngStream = null;
Image imageToSave = null;
bool disposeImage = false;
try
{
SurfaceOutputSettings outputSettings = new SurfaceOutputSettings(OutputFormat.png, 100, false);
// Create the image which is going to be saved so we don't create it multiple times
disposeImage = ImageOutput.CreateImageFromSurface(surface, outputSettings, out imageToSave);
try
{
// Create PNG stream
if (config.ClipboardFormats.Contains(ClipboardFormat.PNG))
{
pngStream = new MemoryStream();
// PNG works for e.g. Powerpoint
SurfaceOutputSettings pngOutputSettings = new SurfaceOutputSettings(OutputFormat.png, 100, false);
ImageOutput.SaveToStream(imageToSave, null, pngStream, pngOutputSettings);
pngStream.Seek(0, SeekOrigin.Begin);
// Set the PNG stream
dataObject.SetData(FORMAT_PNG, false, pngStream);
}
}
catch (Exception pngEX)
{
LOG.Error("Error creating PNG for the Clipboard.", pngEX);
}
try
{
if (config.ClipboardFormats.Contains(ClipboardFormat.DIB))
{
using (MemoryStream tmpBmpStream = new MemoryStream())
{
// Save image as BMP
SurfaceOutputSettings bmpOutputSettings = new SurfaceOutputSettings(OutputFormat.bmp, 100, false);
ImageOutput.SaveToStream(imageToSave, null, tmpBmpStream, bmpOutputSettings);
dibStream = new MemoryStream();
// Copy the source, but skip the "BITMAPFILEHEADER" which has a size of 14
dibStream.Write(tmpBmpStream.GetBuffer(), BITMAPFILEHEADER_LENGTH, (int)tmpBmpStream.Length - BITMAPFILEHEADER_LENGTH);
}
// Set the DIB to the clipboard DataObject
dataObject.SetData(DataFormats.Dib, true, dibStream);
}
}
catch (Exception dibEx)
{
LOG.Error("Error creating DIB for the Clipboard.", dibEx);
}
// CF_DibV5
try
{
if (config.ClipboardFormats.Contains(ClipboardFormat.DIBV5))
{
// Create the stream for the clipboard
dibV5Stream = new MemoryStream();
// Create the BITMAPINFOHEADER
BITMAPINFOHEADER header = new BITMAPINFOHEADER(imageToSave.Width, imageToSave.Height, 32);
// Make sure we have BI_BITFIELDS, this seems to be normal for Format17?
header.biCompression = BI_COMPRESSION.BI_BITFIELDS;
// Create a byte[] to write
byte[] headerBytes = BinaryStructHelper.ToByteArray <BITMAPINFOHEADER>(header);
// Write the BITMAPINFOHEADER to the stream
dibV5Stream.Write(headerBytes, 0, headerBytes.Length);
// As we have specified BI_COMPRESSION.BI_BITFIELDS, the BitfieldColorMask needs to be added
BitfieldColorMask colorMask = new BitfieldColorMask();
// Make sure the values are set
colorMask.InitValues();
// Create the byte[] from the struct
byte[] colorMaskBytes = BinaryStructHelper.ToByteArray <BitfieldColorMask>(colorMask);
Array.Reverse(colorMaskBytes);
// Write to the stream
dibV5Stream.Write(colorMaskBytes, 0, colorMaskBytes.Length);
// Create the raw bytes for the pixels only
byte[] bitmapBytes = BitmapToByteArray((Bitmap)imageToSave);
// Write to the stream
dibV5Stream.Write(bitmapBytes, 0, bitmapBytes.Length);
// Set the DIBv5 to the clipboard DataObject
dataObject.SetData(FORMAT_17, true, dibV5Stream);
}
}
catch (Exception dibEx)
{
LOG.Error("Error creating DIB for the Clipboard.", dibEx);
}
// Set the HTML
if (config.ClipboardFormats.Contains(ClipboardFormat.HTML))
{
string tmpFile = ImageOutput.SaveToTmpFile(surface, new SurfaceOutputSettings(OutputFormat.png, 100, false), null);
string html = getHTMLString(surface, tmpFile);
dataObject.SetText(html, TextDataFormat.Html);
}
else if (config.ClipboardFormats.Contains(ClipboardFormat.HTMLDATAURL))
{
string html;
using (MemoryStream tmpPNGStream = new MemoryStream())
{
SurfaceOutputSettings pngOutputSettings = new SurfaceOutputSettings(OutputFormat.png, 100, false);
// Do not allow to reduce the colors, some applications dislike 256 color images
// reported with bug #3594681
pngOutputSettings.DisableReduceColors = true;
// Check if we can use the previously used image
if (imageToSave.PixelFormat != PixelFormat.Format8bppIndexed)
{
ImageOutput.SaveToStream(imageToSave, surface, tmpPNGStream, pngOutputSettings);
}
else
{
ImageOutput.SaveToStream(surface, tmpPNGStream, pngOutputSettings);
}
html = getHTMLDataURLString(surface, tmpPNGStream);
}
dataObject.SetText(html, TextDataFormat.Html);
}
}
finally
{
// we need to use the SetDataOject before the streams are closed otherwise the buffer will be gone!
// Check if Bitmap is wanted
if (config.ClipboardFormats.Contains(ClipboardFormat.BITMAP))
{
dataObject.SetImage(imageToSave);
// Place the DataObject to the clipboard
SetDataObject(dataObject, true);
}
else
{
// Place the DataObject to the clipboard
SetDataObject(dataObject, true);
}
if (pngStream != null)
{
pngStream.Dispose();
pngStream = null;
}
if (dibStream != null)
{
dibStream.Dispose();
dibStream = null;
}
if (dibV5Stream != null)
{
dibV5Stream.Dispose();
dibV5Stream = null;
}
// cleanup if needed
if (disposeImage && imageToSave != null)
{
imageToSave.Dispose();
}
}
}
/// <summary>
/// A plain "write data to stream"
/// </summary>
/// <param name="dataStream"></param>
public void WriteToStream(Stream dataStream)
{
// Write the file data directly to the Stream, rather than serializing it to a string.
ImageOutput.SaveToStream(surface, dataStream, outputSettings);
}
public static void SetClipboardData(ISurface surface)
{
DataObject dataObject = new DataObject();
// This will work for Office and most other applications
//ido.SetData(DataFormats.Bitmap, true, image);
MemoryStream dibStream = null;
MemoryStream pngStream = null;
Image imageToSave = null;
bool disposeImage = false;
try {
SurfaceOutputSettings outputSettings = new SurfaceOutputSettings(OutputFormat.png, 100, false);
// Create the image which is going to be saved so we don't create it multiple times
disposeImage = ImageOutput.CreateImageFromSurface(surface, outputSettings, out imageToSave);
try {
// Create PNG stream
if (config.ClipboardWritePNG)
{
pngStream = new MemoryStream();
// PNG works for e.g. Powerpoint
SurfaceOutputSettings pngOutputSettings = new SurfaceOutputSettings(OutputFormat.png, 100, false);
ImageOutput.SaveToStream(imageToSave, null, pngStream, pngOutputSettings);
pngStream.Seek(0, SeekOrigin.Begin);
// Set the PNG stream
dataObject.SetData(FORMAT_PNG, false, pngStream);
}
} catch (Exception pngEX) {
LOG.Error("Error creating PNG for the Clipboard.", pngEX);
}
try {
if (config.ClipboardWriteDIB)
{
using (MemoryStream tmpBmpStream = new MemoryStream()) {
// Save image as BMP
SurfaceOutputSettings bmpOutputSettings = new SurfaceOutputSettings(OutputFormat.bmp, 100, false);
ImageOutput.SaveToStream(imageToSave, null, tmpBmpStream, bmpOutputSettings);
dibStream = new MemoryStream();
// Copy the source, but skip the "BITMAPFILEHEADER" which has a size of 14
dibStream.Write(tmpBmpStream.GetBuffer(), BITMAPFILEHEADER_LENGTH, (int)tmpBmpStream.Length - BITMAPFILEHEADER_LENGTH);
}
// Set the DIB to the clipboard DataObject
dataObject.SetData(DataFormats.Dib, true, dibStream);
}
} catch (Exception dibEx) {
LOG.Error("Error creating DIB for the Clipboard.", dibEx);
}
// Set the HTML
if (config.ClipboardWriteHTML)
{
if (config.ClipboardWriteHTMLDataUrl)
{
string html;
using (MemoryStream tmpPNGStream = new MemoryStream()) {
SurfaceOutputSettings pngOutputSettings = new SurfaceOutputSettings(OutputFormat.png, 100, false);
// Do not allow to reduce the colors, some applications dislike 256 color images
// reported with bug #3594681
pngOutputSettings.DisableReduceColors = true;
// Check if we can use the previously used image
if (imageToSave.PixelFormat != PixelFormat.Format8bppIndexed)
{
ImageOutput.SaveToStream(imageToSave, surface, tmpPNGStream, pngOutputSettings);
}
else
{
ImageOutput.SaveToStream(surface, tmpPNGStream, pngOutputSettings);
}
html = getHTMLDataURLString(surface, tmpPNGStream);
}
dataObject.SetText(html, TextDataFormat.Html);
}
else
{
string tmpFile = ImageOutput.SaveToTmpFile(surface, new SurfaceOutputSettings(OutputFormat.png, 100, false), null);
string html = getHTMLString(surface, tmpFile);
dataObject.SetText(html, TextDataFormat.Html);
}
}
} finally {
// we need to use the SetDataOject before the streams are closed otherwise the buffer will be gone!
// Check if Bitmap is wanted
if (config.ClipboardWriteBITMAP)
{
dataObject.SetImage(imageToSave);
// Place the DataObject to the clipboard
SetDataObject(dataObject, true);
}
else
{
// Place the DataObject to the clipboard
SetDataObject(dataObject, true);
}
if (pngStream != null)
{
pngStream.Dispose();
pngStream = null;
}
if (dibStream != null)
{
dibStream.Dispose();
dibStream = null;
}
// cleanup if needed
if (disposeImage && imageToSave != null)
{
imageToSave.Dispose();
}
}
}