GetFolder : Shell Extension Folder Browser Function


Folder browser dialog - also enumerates network drives...


...demo application shows how easy it is to display dialog and retrieve user-selected folder.

Overview

This is a very standard technique used to retrieve folder information from Windows using the Shell extension functions SHBrowseForFolderA, SHGetPathFromIDList and SHGetDesktopFolder.

The Code

All you need to do is to call my function GetFolder. However, for the more curious among you that want to know more of the details, there are only two functions used here: one to cause the display of the standard folder browser dialog and a callback function that handles the processing of events while the dialog is being displayed). Here are the basic steps in my code.

GetFolder Steps

  1. Call SHGetDesktopFolder to get the IShellFolder interface for the desktop folder
  2. Call the IShellFolder.ParseDisplayName to get the identifier list
  3. Allocate and fill out a BROWSEINFOA structure with the desired parameters (e.g., pidl from the IShellFolder.ParseDisplayName, callback function that the shell will call with the folder names, etc.). The callback function is called BrowseCallbackProc.
  4. Call SHBrowseForFolderA to display the folder browse dialog (passing it the BROWSEINFOA structure which defines how that dialog should appear)
  5. Upon return from the SHBrowseForFolderA function, I then call the SHGetPathFromIDList function in order to retrieve the name of the user-selected folder.

BrowseCallbackProc Function

In this function I only need to handle the BFFM_INITIALIZED and the BFFM_SELCHANGED messages. Even then, all I'm doing is updating a field on the dialog to reflect the currently selected folder. This is the text that I retrieve in the last step of the GetFolder function.

Downloads

Download source and demo (including release build) - 18 Kb


Comments

Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Bonita BPM 7 is here! And for you, an in-depth tour of its innovation. In this webinar, we'll guide you through the brand-new features of this release and demonstrate them live. You will: Discover how business application implementation and maintenance is now even easier, with decoupling of process logic, business data and user interface Learn how to create "living applications" for business processes which present business data in custom views We recommend that you watch the half-hour recording of our …

  • Temporary network outages -- even those lasting just a few minutes -- can cripple organizations that rely on local Internet access at remote locations. Failover systems that automatically switch to 4G LTE cellular when landlines go down let organizations maximize uptime, even when the unexpected happens. Read this white paper to learn how 4G failover systems that use standalone gateways supported by a cloud-based management tool are proving to be a solid choice for improved business continuity and productivity …

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date