From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Seiji Zenitani Newsgroups: gmane.emacs.devel Subject: Re: new frame-parameter "alpha" Date: Thu, 20 Mar 2008 18:53:18 -0400 Message-ID: <08A77C51-6312-4BB3-B012-BF3BAF43AB72@mac.com> References: <5CA0EA9A-EA1B-4F9C-B235-48FBB2F72DB9@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 (Apple Message framework v753) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1206053654 1860 80.91.229.12 (20 Mar 2008 22:54:14 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 20 Mar 2008 22:54:14 +0000 (UTC) Cc: emacs-devel@gnu.org To: Ken Raeburn Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Mar 20 23:54:43 2008 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1JcTej-0003Lm-5Y for ged-emacs-devel@m.gmane.org; Thu, 20 Mar 2008 23:54:41 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JcTe8-0003z4-Ji for ged-emacs-devel@m.gmane.org; Thu, 20 Mar 2008 18:54:04 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JcTe5-0003yq-3z for emacs-devel@gnu.org; Thu, 20 Mar 2008 18:54:01 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JcTe3-0003ye-HK for emacs-devel@gnu.org; Thu, 20 Mar 2008 18:54:00 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JcTe3-0003yb-Em for emacs-devel@gnu.org; Thu, 20 Mar 2008 18:53:59 -0400 Original-Received: from smtpoutm.mac.com ([17.148.16.64]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1JcTdz-0007Cn-Jy; Thu, 20 Mar 2008 18:53:55 -0400 Original-Received: from mac.com (asmtp010-s [10.150.69.73]) by smtpoutm.mac.com (Xserve/smtpout001/MantshX 4.0) with ESMTP id m2KMrqWO017572; Thu, 20 Mar 2008 15:53:52 -0700 (PDT) Original-Received: from [10.0.1.200] (c-98-204-109-185.hsd1.md.comcast.net [98.204.109.185]) (authenticated bits=0) by mac.com (Xserve/asmtp010/MantshX 4.0) with ESMTP id m2KMroSr019948; Thu, 20 Mar 2008 15:53:51 -0700 (PDT) In-Reply-To: <5CA0EA9A-EA1B-4F9C-B235-48FBB2F72DB9@gnu.org> X-Mailer: Apple Mail (2.753) X-detected-kernel: by monty-python.gnu.org: FreeBSD 4.7-5.2 (or MacOS X 10.2-10.4) (1) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:93079 Archived-At: On 2008/03/20, at 11:22, Ken Raeburn wrote: > On Mar 14, 2008, at 07:02, Seiji Zenitani wrote: >> Elisp syntax: >> We can use both a floating point number (0.0-1.0) as well as an >> integer number (0-100). > > So 1 means almost-invisible and 1.0 means completely opaque? Correct. (Actually 1 brings 20% opaque, when "frame-alpha-lower-limit" is set to 20.) > Do float-vs-int representations of the same value have such > opposite meanings in other parts of Emacs (outside of some possible > arithmetic cases)? > > Ken One sample is 'line-spacing'. (setq line-spacing 1) ;; 1 pt (setq line-spacing 1.0) ;; relative height We can also employ only float (or int) in order to avoid confusion. Seiji