Intellimouse panning (improved Auto-Panning Windows)

This article improves on the code submitted by Umut Alev, Auto-Panning Windows.

Ever since I saw the use of this Intellimouse control in the Infoviewer of DevStudio and later in Microsofts Internet Explorer, I've wanted an improved version that didn't strain the eyes and had much finer increments than 1-pixel, 2-pixels etc. Eudora Pro can use Microsofts viewer and since I read a number of newsletters, the scrolling is either too slow or too fast. I also wanted the panning to be simultanoeusly possible both vertically and horizontally.

Improvements made

  • Scroll simultaneously in horizontal and vertical directions. I added code to Umuts class to handle scrolling both vertically and horizontally at the same time (you can still have it the old way, it's a BOOL switch). The cursor does not change in this case, it remains the pointer in all four directions.
  • Scroll with much finer resolution (much smoother) by time and pixel dependant scrolling.

Download source - 5KB

Download the two source files mfxWhlPan.h and mfxWhlPan.c in this ZIP file. You must download Umats demo project - 38KB or his source - 4.9KB and replace the two files.

Date Posted: 5/22/98
Posted by: Pat Laplante.



Comments

  • There are no comments yet. Be the first to comment!

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  • Your email address will not be published.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

Top White Papers and Webcasts

  • On-demand Event Event Date: September 10, 2014 Modern mobile applications connect systems-of-engagement (mobile apps) with systems-of-record (traditional IT) to deliver new and innovative business value. But the lifecycle for development of mobile apps is also new and different. Emerging trends in mobile development call for faster delivery of incremental features, coupled with feedback from the users of the app "in the wild." This loop of continuous delivery and continuous feedback is how the best mobile …

  • Java developers know that testing code changes can be a huge pain, and waiting for an application to redeploy after a code fix can take an eternity. Wouldn't it be great if you could see your code changes immediately, fine-tune, debug, explore and deploy code without waiting for ages? In this white paper, find out how that's possible with a Java plugin that drastically changes the way you develop, test and run Java applications. Discover the advantages of this plugin, and the changes you can expect to see …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds