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From: handle (The Bug Handler) Subject: Allegro CL for Windows FAQ Date: 1994-11-8 16:11 This is to announce the creation of the Allegro CL for Windows FAQ, available via: (1) Franz' World Wide Web page (http: //www.franz.com/) (2) anonymous ftp (ftp.uu.net:/vendor/franz/acl4w-faq) The header and table of contents are appended below. ----- The Bug Handler, Franz Inc. 1995 University Avenue, Suite 275 <Franz.COM at handler> Berkeley, CA 94704, USA Phone: (510) 548-3600 FAX: (510) 548-8253 http: //www.franz.com/ FAQs: ftp.uu.net:/vendor/franz/*faq ----- Allegro CL (Windows) Frequently Asked Questions (FAQ) & Answers Last-modified: $Date: 1994/11/07 23:17:31 $ Version: $Revision: 1.1 $ Location: ftp.uu.net:~ftp/vendor/franz/acl4w-faq This is a list of frequently asked questions on Allegro Common Lisp (ACL) for Windows (ACL (Unix) issues are currently dealt with in the file faq found in this directory). Please read this document before sending mail to <franz.com at pc-support> or <cs.berkeley.edu. at allegro-cl> We (Franz Inc.) will mail the changes in the list approximately monthly to <cs.berkeley.edu. at allegro-cl> Periodically, also, items from this list will be incorporated into our documentation. Your comments, additions and fixes to this list are welcome: please send them to <franz.com. at pc-support> Subject: Table of Contents From: Preface Legend: + new, - deleted, ! changed 1. Administrative Issues: ------------------------ 1.1. Version info for ACL * What is the current version of ACL for Windows? 1.2. ACL-related communication * How should I report bugs? * Is there a mailing list for Allegro CL? How do I sign up? 1.3. Patches * Is there a public patch directory you maintain for incremental patches to the ACL image? If so, how do I get to it? * What is the ftp.uu.net, or what is the internet number so I can get to all of your patches? * Can I load patches explicitly once lisp is already running? * When I redefine a "protected function" in a patch and load it in, I get a break about redefining a protected function even if I have bound top::*warn-on-redefinition* to NIL. What do I do? 1.4. ACL Documentation * What is the relationship between this FAQ and ACL documentation? * Is the ACL documentation available on-line? 1.5. Windows configuration * How can I tell if my problems are due to running out of either virtual memory or Windows resources? * How can I set up a permanent swap file in Windows? * What to do about Windows sometimes hanging randomly or even dropping back to DOS? * How can I determine if Windows NT is being run? * How can I determine if Windows For Workgroups is being run? 2. Using Allegro CL: ------------------- 2.1. Base Lisp * I'm having trouble saving a file after editing it. I get a dialog box that says "SHARING VIOLATION ON DRIVE C". * What things can make aclwin 2.0 crash get a General Protection Fault? * When an error occurs while loading a file, how can I tell at what point in the file the error occurred? * How can I have the inspector not use special functionality for displaying certain types of objects, when I would just like to see all the slots as usual? * How can I catch when lisp is being exited and conditionally abort from exiting? * How can I turn off the super-paren feature, where a closing bracket closes all open parentheses? * Why is set-scroll-range unreliable for scroll ranges greater than 32,000? * The function count-icons-in-file doesn't work. What do I do? * Why can't I load a fasl file with an extension other than ".fsl"? * How can I suppress compiler warnings when loading a source code file? * How can I get rid of the vertical scrollbar on the main lisp window? * What do I do about "error: expression too large to compile in COMPILE. Split it and try again."? 2.2. Windows/DOS interface * How can I get the current Windows/DOS directory? * How can I change the current Windows/DOS directory? * How can I get the "Windows directory" and the "Windows system directory"? * How can I get the directory where the running lisp.exe lives? * How can I get the name of the lisp image file that is being run? * How can I determine whether a particular directory exists? * How can I get a list of all files in a directory? * How can I get a list of all subdirectories of a directory? * How can I create a directory from lisp? * How can I execute a Windows program from lisp? * How can I execute a Windows program from lisp SYNCHRONOUSLY? * How can I execute DOS commands (not Windows programs) from lisp? * How can I execute DOS commands from lisp SYNCHRONOUSLY? * How can I create an icon programmatically from a pixmap array? * How can I invoke Windows help files (extension .hlp) in aclpc? * How can I add a standard Windows caret (for a text cursor, for example) to my window? 2.3. Garbage collector * What kind of garbage collection does aclwin have? * How can I configure the garbage collector? 2.4. Printer issues * Can I draw graphics directly onto a printer? * Can I copy the contents of windows to the printer? * How can I draw text on the printer with the same font size as a window? * How can I pop up the "printer setup" dialog? * Can I set the "printer setup" parameters programmatically? * Can I pop up the "printer dialog" for specifying which pages to print, number of copies, etc.? 2.5. Programming tools * When I pop up the find-in-file dialog after having added some directories to choose from, saved preferences, and restarted lisp with those preferences. It gets confused about the current directory in the directory browser list box or else breaks. Is this a bug? * What's a typical sequence of steps for doing profiling? * Error handling: How can I handle particular errors myself rather than breaking? 3. Add-on products/features: --------------------------- 3.1. Common Graphics * How come the "event" method isn't invoked for widgets/dialog-items? * How can I send messages to the windows of other applications? * How come widgets won't display colors that the dialog window will? * Why can I only get 16 or 20 colors, when I'm trying to display up to 256? * When I use copy-pixels-to-stream, the colors aren't mapped correctly even though I pass the texture-info (which contains the correct colormap) that was returned by load-pixmap. Why? * I'm confused about the difference between pixel-maps, pixmaps, textures, and texture-infos. * When drawing using the cg:invert operation to "logxor" pixel values, sometimes colors automatically invert to intuitive colors, and sometimes not. Why? * When another application changes the system palette, how can I detect this and re-realize my own palettes? * I want to pop up a pop-up dialog and have the input focus be initially on a particular widget in that dialog, but the focus always seems to be on a particular arbitrary widget rather than the one to which I set focus just before calling pop-up-dialog. What do I do? * How can I have one modal (pop-up) dialog invoke a second modal dialog, so that the user can't mouse widgets on the first while the second is on the screen? * How can I have one window on top of another one without the window on top moving when the other window is scrolled? * How come no "character" events are coming into the event method? * What do I do if when trying to create a bitmap-window I get this error? ;;;; ERROR: Error creating a memory bitmap of size 632 by 453; likely not enough available memory. * How do you disable a whole pull-down menu on a menu bar, as opposed to disabling a menu item? * When I add a menubar to a pop-up dialog, there's a gap along the bottom of the title bar where a few rows of background pixels show through. Why? * When I have a non-delayed text widget and reject certain typed characters in my set-value-fn, it moves the cursor back to the start. How can I keep the text cursor where it was before the invalid character was typed? * I get a stack overflow when I return NIL from the set-value-fn of my radio buttons. What do I do? * How can I optionally prevent a user from closing a window? * How are the default-button and cancel-button different from regular buttons? * How come setting the background color of a widget to NIL makes it draw with a light-gray background rather than the system window background color? * The font selector Common Dialog shows only true type fonts. * The tabbing order of widgets differed from what I had expected. * When an object that's shown in a list widget or combo-box changes in such a way that it should print differently in the widget (such as when a :key is used) even though the same lisp objects are in the widget's range, how do you make the widget redisplay properly? * When I programmatically set the value of a combo box (or list widget), it doesn't display the choice, though it works just fine when I set the value by choosing an option with the mouse. Why? * When I select all the text in a 3D text-widget and hit backspace, lisp doesn't realize that the value has changed. * How do I use a transparent background color for the text on a window? * How does the double click work on a single-item-list widget? * Save-fasl-pixmap doesn't seem to work. What do I do? * Can I print help messages as the user highlights various menu-items of a menu that they are perusing? * How can I position the text cursor at the end of a text-edit-window, or otherwise ensure that output goes to the end of the existing text? * Can I attach a comtab to a text-edit-pane and make RETURN process the line that the user just typed? 3.2. Foreign-Function interface * Can you give me an example of passing a callback function to Windows? * Do you have a DDE interface on top of the low-level Windows API for DDE? * How can I find the DDE commands that are available in the Program Manager? 3.3. Runtime * Do you have an example of a complete runtime application, with a menu bar and a dialog window even? * How can I prevent the user from running multiple instances of my runtime application? 3.4. Editor * Can you give me some examples of defining keystroke behavior with comtabs (command tables), for use in lisp editor windows? ============================= |