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From: | Hartmut Schirmer <hsc AT techfak DOT uni-kiel DOT de> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: ?: GRX22, only 2 colors after GrSetMode(..default..) |
Date: | Wed, 18 Feb 1998 11:33:44 +0100 |
Organization: | Technische Fakultaet, University of Kiel, Germany |
Lines: | 34 |
Message-ID: | <34EAB908.4B11@techfak.uni-kiel.de> |
References: | <6ccvb1$ook$1 AT fsuj19 DOT rz DOT uni-jena DOT de> |
NNTP-Posting-Host: | zora.techfak.uni-kiel.de |
Mime-Version: | 1.0 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
E. Schmidt wrote: > Sometimes my simulation program sets monochrom mode after > > GrSetMode(Gr_default_graphics); > > The probability of this increases with larger memory allocation > (Statement: You will never have enough memory...) > > But sometimes it's Ok -> 640x480x16 colors. > > Usage of GR_biggest_graphics > or Gr_width_height_color_graphics > does not help > > Where should I look for solution? Get the available memory before GrSetMode by __dpmi_get_free_memory_information If there's not enough memory for some internal allocations modes will be disabled. > By the way, I make text output in graph mode by means of printf() > Is it Ok? In standard VGA modes this should work as the BIOS knows how to display text on graphics screens. Hartmut -- Hartmut Schirmer | Phone: +49-431-77572-709 FAX:-703 Automatisierungs- & Regelungstech. | hsc AT techfak DOT uni-kiel DOT de Technische Fakult"at, | http://www.techfak.uni-kiel.de/~hsc Kaiserstr. 2, 24143 Kiel, Germany | PGP key via WWW, Key ID:6D84AEC1
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