Greetings.. This is a simple program I wrote so that I could learn how to display Icons on the screen. It's not GREAT code. I actually wrote my own linked list handing routines instead of using the objective C ones... I was so intent on figuring out icons, I didn't want to bother looking at the List Object :-). Maybe next version. Structure Each icon is a window. The window has no minuaturize or close buttons so the content view is basically the icon. The contentView of the window is an instance of IconView. IconView simply implements the drawself, init, and set instance variable methods (nothing too special). The whole thing is very little code and it should be pretty easy to figure out. I have alread received lots of responses about this program so it looks like I'll be adding some enhancements in the near future. Workings A c function (called who) is called every 5 seconds using the DPS timed entry call. This function performs the following tasks: Maps /etc/utmp file into memory. Checks all entries against its own linked list. If entry exists, that entry is marked. If entry does not exist, it is set up and entered into the list. All entries in the linked list which are no longer in the /etc/utmp file are removed from the list, objects freed, etc. Icons are displayed as the list is traversed. Closes memory mapping. NOTE: Thanks to Jayson Adams whose ALTDOCK program helped me to understand how Icons "work". Please send any questions or comments to me at: schock@flip.cpsc.ucalgary.ca Enjoy the program and Code. Craig
================================================================================ Hello all... Thanks to all who e-mailed me with questions/comments and suggestions about this program. I've implemented some of the suggestions that I received. I've fixed the Memory leak that was present in the previous version. I've tested this version with MallocDebug and there seems to be no more memory leaks. (Where is some wood to knock on? :-) I've added speech synthesis to this program using the Trillium Sound Research Inc. TextToSpeech Kit. If you do not have the TextToSpeech Kit, you can comment out the flags in the Makefile.preamble file. If you wish to obtain information about the TextToSpeech Kit, you can contact Trillium at: Client Inquiries Trillium Sound Research Inc. 1500, 112-4th Ave. S.W. Calgary, Alberta, Canada T2P 0H3 (403) 284-9278 Fax: (403) 282-6778 -------------------------------------------------------------------------------- Notes: (This spiel is for my own protection) The author of this software will not be responsible for any damages, consequential or inconsequential, resulting from the use of this software. It is provided "as is" with no additional warranty, expressed or implied, beyond what is specifically stated in this document. Phew! Try saying that in one breath! :-) You may copy this program, give it to your friends, etc provided that all notices remain in tact. You may use the source code. If you modify this program, I would like some info on the changes to that I can keep WhosOnFirst "up to date". This program is provided free of charge. Being a starving student, however, I would not turn away any gratuity you might send to me. If you like the program, a small amount of $20 (or whatever), sent to the following address, would be greatly appreciated: Craig-Richard Schock 2519, 16th St. NW. Calgary, Alberta Canada T2M 3R3 Thanks in advance and I hope you enjoy the program. ================================================================================
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.
