Hello Joao,
-> I like very much the Vintasoft Annotation. It is possible that soon we will use the control.
Thank you for good words about our product.
-> I would like suggest:
-> 1. transparency level in background color
You can set transparency level of background color in your code as follows:
ann.BackColor = Color.FromArgb(70, 255, 255, 0);
where 70 - is a transparency level
-> 2. Rule property to set position of label: top left, top middle, top right, bottom left, bottom middle,
-> bottom right
Next version of library will have this feature.
-> 3. Annotation "extra info", associate text observations in annotation, if the annotation has "extra info"
-> associated show a small icon, that when mouse over the text shows in tooltip
Do you want to add tooltip to annotation? What do you mean when you say - "show a small icon"? Maybe you can send me an example?
Best regards, Alexander