custom points

[Sof]

By all means.  Thank you for listening.

[AEDavid]

Hi Sof,

Back to the Active X approach ....

The image for the annotation should located at a URL (possibly a location on your hard drive).  You can modify that picture (you can call GetURL if you need to get the location of the URL programmatically), and then call Reload() on your image. 

Here are some code snippets for C++:

m_GraphData.Annotations.Item(1).Shape.Type = CNiShape::Picture;

m_GraphData.Annotations.Item(1).Shape.Image.Url =

"c:\\image.bmp";

m_GraphData.Annotations.Item(1).Shape.Image.BlinkInterval = CNiImage::SpeedOff;

m_GraphData.Annotations.Item(1).Shape.Image.Reload;

CNiImage myImage = m_GraphData.Annotations.Item(1).Shape.GetImage();

[Sof]

Oh yea, I forgot the original intention of the post.

I'm not sure I'm following you.  Your code snippet sets the Shape image, loads it, and gets it.  But once I get the CNiImage how can I modify the bitmap?  The image is still an CNiPicture, which as far as I can tell, doesn't do me alot of good. 

What I need to do is:

1. get the image of the annotation
2. do my custom mods to the annotation image
3. assign that image back to that annotation image

Thanks,
Scott

[AEDavid]

Hi Scott,

These is a predefined set of images that will be displayed for the annotations, right?  It seems like the best way would be to programmatically switch one image out for another.  For example, if you had a set of image files that are different colored squares, you could replace the image with another one in that set.   

[AEDavid]

Hi Scott,

Also, CWImage allows for some basic image operations, such as:

AnimateColumns	Specifies the number of columns in a bitmap that is being used for animation.
AnimateInterval	Specifies how often an image animates.
AnimateRows	Specifies the number of rows in a bitmap that is being used for animation.
BlinkInterval	Specifies how often the image blinks.
Color	Specifies the color of the image, or, if you are doing dynamic color substitution in Windows metafiles, the color in the image that you want to replace.
FlipH	Flips an image horizontally.
FlipV	Flips an image vertically.
Picture	Specifies the image used in the CWImage object.
ReverseAnimation	Specifies the direction of animation.
SaveLink	Specifies if the CWImage object saves the image itself or a link to the image.
Stretch	Specifies if the image is displayed normal size or stretched to fit the size available within the control.
Substitute	Specifies that you want to perform dynamic color substitution in the metafile image if set to True.
SubstituteColor	Specifies the color that will replace a specified color in the metafile image.
Tile	Specifies if the image is tiled.
Tolerance	Specifies the percentage for matching color hues on the image to the SubstituteColor property.
Transparent	Specifies if the image has a transparent color.
TransparentColor	Specifies the color in the image that must be drawn as transparent.
URL	Specifies the path to the image.
Visible	Specifies if the image is visible or not.

In particular, color will let you change the color of the picture.  Another option is to use a native .NET library (you already have the saved file, so you can load it and do any image processing on it).  An example .NET program (including source code) is:  http://www.getpaint.net/

[Sof]

I tried this but it did not change the color in my wmf from Red to Blue.  I tried setting different tolerances from 0-100 and nothing worked.  If I could get this working that would solve my problem.

_Anno.Shape.Image.CWImage.URL =

@"C:\Users\DevAccount\Desktop\TriangleWMF.wmf";
_Anno.Shape.Image.CWImage.Reload();
_Anno.Shape.Image.CWImage.Substitute = true;
_Anno.Shape.Image.CWImage.Color = (uint)ColorTranslator.ToWin32(Color.Red);
_Anno.Shape.Image.CWImage.SubstituteColor = (uint)ColorTranslator.ToWin32(Color.Blue);

[AEDavid]

Thanks, Sof.  I am looking into this further. 

[AEDavid]

Hi Sof,

This was reported to R&D (4CUMHLNM) for further investigation.  For now, you may want to try a .NET Library to change the color of the image, using the info I suggested in an earlier post.

[Sof]

So is there going to be a hot-fix for this?  You all advertise that these things work and then you yourselves find out that they don't!

We need this functionality.  Your solution from a previous post is impractical. 

[JonathanN]

Hi Scott,

We apologize for the fact that the basic code snippet you posted just doesn't work.  The bug report has been filed by David to us so we do have this issue in our database.

Now in the mean time, a suitable workaround needs to be used and thus I am wondering why you mentioned that David's workaround is impractical.  Could you please elaborate and explain your reasoning behind this?  It seems (and please correct me on this) that you are simply trying to manipulate an image. If this is true, as David mentioned, you could use any of the .NET libraries that allow you to manipulate image objects.  The System.Drawing namespace includes many classes that you can use to manipulate images and graphic objects.

Maybe you are doing something more complicated that I am assuming but even if that's the case, I would tend to lean towards the .NET classes as a workaround. 

Best Regards,