Re: Aspose Imaging - Compact Framework

Aspose.Imaging Product Family
1

The issues you have found earlier (filed as 31416) have been fixed in this update.

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2

Thank you very much, good job! Now my code works without error.

Now I have to problem:

1. I'm not able to load the image in attach

2. I need to know how to display the loaded image on my HDC. I need a sort of BitBlt function.

Could you help me ?

Thank you in advance.

Regards

KCC

3

Hi KCC,


I can reproduce the loading issue with your provided PNG file. Also I have noticed that other PNG files [one is attached] can be loaded with out any problem. Therefore I have recorded an investigative ticket under Id 31783. We will probe further into this issue and will keep you posted with updates.

Regarding point 2), I’m sorry I am unable to understand your need. Can you please elaborate further?
4

Hi,

thank you very much for your quick answer.

My question is simple: I would like to use your library in a small CAD application for windows mobile devices. So I have an Handle Device Context of the form/window where I display my drawing; on this device context I have also to display the loaded image.

As I wrote I need a sort of BitBlt functions that allow me to display the loaded image on a form.

Is it clear now ? Otherwise, please contact me again.

Thank you in advance.

Regards

KCC

5

Hi KCC,


Thank you for providing us further details.

We have forwarded your request to our development team. As soon as we hear from them, we will update you here.

Regards,
6

Hi again,


Below is the source code for drawing Aspose Image over the required System.Drawing graphics. This code will work with all images except PsdImage.


///
/// Draws an Aspose image over the hdc surface.
///
/// The Aspose image.
/// The handle device context.

private void DrawImage(Aspose.Imaging.Image image, IntPtr hdc)

{

using (System.Drawing.Graphics graphics = System.Drawing.Graphics.FromHdc(hdc))

{

using (var gdiImage = Aspose.Imaging.Extensions.ImageExtensions.ToGdiImage(image))

{

graphics.DrawImage(gdiImage, 0, 0);

}

}

}



7

Hi,

thank you for the answer, the code works but ... I'm not fully convinced, because

- the method ToGdiImage, perform a copy, in memory, of the original image ? With big images this could be a problem.

- is it necessary to create a Graphics object ? Is not really possible to display the image directly on HDC ?

What do you think ? I'm looking for the fastes and efficient solution possible.

Thank you in advance.

Regards

KCC

8

Hi KCC,

No such API is available at the moment but a new issue to provide API to place the image directly on HDC in an efficient way has been logged into our issue tracking system as IMAGING-31867. We will keep you updated on this issue in this thread. Sorry for the inconvenience.

Please feel free to contact us in case you have further comments or questions.

Best Regards,