How to implement select area in adobe acrobat using vc++

Well, there are two parts to this.

1. Implement dragging out a rectangle - typically when your AVTool is selected.

2. Do something with the selection information.

There are many possibilities for 2 so let's start there as they range from simple to impossible, for example

- report the size of the selected area in inches - simple

- extract the text in the selected area - complex, as you have to iterate all text and see which of it lies inside the area (and decide what to do about half-characters and half-words).

- use it as a selection in another Acrobat tool like prepare forms (impossible).

Try the forum for Acrobat SDK.