|
private FT_Outline_Render ( |
||
| library | ||
| outline | ||
| @params | ||
| return | System.Error | |
/// <summary>
/// Render an outline within a bitmap using the current scan-convert. This function uses an
/// <see cref="RasterParams"/> structure as an argument, allowing advanced features like direct composition,
/// translucency, etc.
/// </summary>
/// <remarks><para>
/// You should know what you are doing and how <see cref="RasterParams"/> works to use this function.
/// </para><para>
/// The field ‘params.source’ will be set to ‘outline’ before the scan converter is called, which means that
/// the value you give to it is actually ignored.
/// </para><para>
/// The gray-level rasterizer always uses 256 gray levels. If you want less gray levels, you have to provide
/// your own span callback. See the <see cref="RasterFlags.Direct"/> value of the ‘flags’ field in the
/// <see cref="RasterParams"/> structure for more details.
/// </para></remarks>
/// <param name="parameters">
/// A pointer to an <see cref="RasterParams"/> structure used to describe the rendering operation.
/// </param>
public void Render(RasterParams parameters)
{
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
Error err = FT.FT_Outline_Render(parentLibrary.Reference, Reference, parameters.Reference);
if (err != Error.Ok)
{
throw new FreeTypeException(err);
}
}
/// <summary>
/// Render an outline within a bitmap using the current scan-convert. This function uses an
/// <see cref="RasterParams"/> structure as an argument, allowing advanced features like direct composition,
/// translucency, etc.
/// </summary>
/// <remarks><para>
/// You should know what you are doing and how <see cref="RasterParams"/> works to use this function.
/// </para><para>
/// The field ‘params.source’ will be set to ‘outline’ before the scan converter is called, which means that
/// the value you give to it is actually ignored.
/// </para><para>
/// The gray-level rasterizer always uses 256 gray levels. If you want less gray levels, you have to provide
/// your own span callback. See the <see cref="RasterFlags.Direct"/> value of the ‘flags’ field in the
/// <see cref="RasterParams"/> structure for more details.
/// </para></remarks>
/// <param name="parameters">
/// A pointer to an <see cref="RasterParams"/> structure used to describe the rendering operation.
/// </param>
public void Render(RasterParams parameters)
{
if (disposed)
{
throw new ObjectDisposedException("Outline", "Cannot access a disposed object.");
}
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
Error err = FT.FT_Outline_Render(parentLibrary.Reference, reference, parameters.Reference);
if (err != Error.Ok)
{
throw new FreeTypeException(err);
}
}