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For example, SHGet File Info does not return a simple System. The next thing to do is modify the Cache Shell Icon method to include this line after the one that is similar to it: Up to this point, we’ve only been displaying folders in the Tree View because this is how Windows Explorer does it. Image Key & "-open" ' add this file Tree Node to the Tree Node that is being populated e. We will continue building upon the Tree View File Browser Component from Part 1. SHGet File Info needs to know whether we are requesting an icon at all (because we can actually request things other than an icon). Therefore, we will have to extract the returned values from the SHFILEINFO structure and convert them into the desired . It also needs to know whether it is a small icon (16×16), a large icon (full size), as well as whether the icon is in the open state (such as when a folder appears open in Windows Explorer), so we have defined the constants for these (line 3-6).
Finally, we attempt to convert the icon handle in the SHFILEINFO structure to a System. Make a copy of your original Get Shell Icon As Image method and name it Get Shell Open Icon As Image. Tree Node Mouse Click Event Args) Handles Tree View1. Furthermore, the SHGet File Info needs something to store the result of our request (in this case, the icon), so we must supply it with an SHFILEINFO structure (line 8-16). The important thing to understand about Win32 API calls is that they sometimes do not return values in the exact format we need them in. Version 0.7.0 introduced optional JSON output through a rewrite of the codebase which split the project into an example block explorer and a class, , for returning a PHP array or JSON of a block's details and a summarized list of blocks respectively.This change allows for removing the example block explorer of RPC Ace in order to use the RPCAce class on its own for processing and presenting block chain data in other ways.
We then instantiate a new SHFILEINFO structure (line 3) and fill it with some required data (line 4-5). Select the Tree View1 control and change it’s Image List property to Image List1. Get Extension(arg Path) End If ' check if an icon for this key has already been added to the collection If Image List1. For example, when the icon gets cached for a Text File, we add it to the Image List using as the key.