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  • Your email address will not be published.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

  • Live Event Date: May 18, 2015 @ 1:00 p.m. ET / 10:00 a.m. PT While the idea of using facial and or gesture recognitions to create a modern, intuitive game seems attractive, some developers may want to leverage Unity 3D as a way to accelerate their development. There are many different ways in which Intel and Unity Technologies have been working together to helps speed the develop of games with the Intel® RealSense™ SDK (Software Developer Kit), so come hear from a panel of experts on what we've done …

  • You may not realize the complexity you could be creating when developing mobile apps – many companies don't initially. You could be doubling your IT costs for development and delivery; not to mention, risking sales, productivity and brand satisfaction. Read this IBM-commissioned Forrester Study to understand the key cost drivers of mobile app delivery -- for both customer-facing and enterprise applications. Find out how you could lower costs and increase success with the right strategy and investment.

Most Popular Programming Stories

More for Developers

RSS Feeds

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