ASP.NET can call Direct2D by C#. However after I create bitmap, can we show the bitmap on web?
protected void Page_Load(object sender, EventArgs e)
{
m_renderBitmap = m_wicFactory.CreateImagingBitmap(m_imageWidth, m_imageHeight, PixelFormats.Bgr32Bpp, BitmapCreateCacheOption.CacheOnLoad);
RenderTargetProperties renderProps = new RenderTargetProperties
{
PixelFormat = new PixelFormat(
Microsoft.WindowsAPICodePack.DirectX.Graphics.Format.B8G8R8A8UNorm,
AlphaMode.Ignore),
Usage = RenderTargetUsages.None,
RenderTargetType = RenderTargetType.Software
};
m_renderTarget = m_d2dFactory.CreateWicBitmapRenderTarget(m_renderBitmap, renderProps);
}
The rendertarget I created is WICBitmapRenderTarget. If I can show the bitmap on the web?
There are a couple of ways you could achieve this.
1 - Render the image into a byte array and encode it directly into the page; see the answer for this
Use a System.Drawing.Image in an HTML tag
Note - will be very inefficient and will only work with small images.
2 - Stream the image to the browser in the appropriate MIME type i.e. image/jpg or whatever. Create a page or HTTP handler whose only job is to respond to requests for images, see the answer to this: -
.. as a starter.