tabu6@CCVAX.IASTATE.EDU (Adam Goldberg) (03/18/91)
In article <65841@eerie.acsu.Buffalo.EDU>, haozhou@acsu.buffalo.edu (Hao Zhou) writes: >I wrote an application program using Turbo C graphics package. The >only problem I have is that I have to keep the BGI driver in the >current directory otherwise the program will say the BGI driver is not >found. > >My question is how do I tell my program to search for the BGI driver >in a path specified somehow if the BGI driver is not present in the >current directory? > It is possible to link the BGI driver in with the executable code (EXE file), by: o Using the BGIOBJ utility to create an OBJ verion of the BGI driver o LINKing the OBJ BGI driver with your code OBJ file o Doing either a 'registerbgidriver()' or 'registerfarbgidriver()' function call before the 'initgraph()' call. (Consult your manual for further info--though I got this from the Waite Group's Turbo C++ Bible -- these functions work in TC2.0 as well). ------------ Part II: if(a=b) { ... } has legitimate use. This is a non-atomic slightly modified TestAndSet. +----------------------------------------------------------------------------+ + Adam Goldberg H:(515)233-5135 + + Iowa State University TABU6@ccvax.iastate.edu + + "It's simple! Even a Pascal programmer could do it!" + +----------------------------------------------------------------------------+
hagins@gamecock.rtp.dg.com (Jody Hagins) (03/20/91)
In article <1991Mar17.162020.6858@news.iastate.edu>, tabu6@CCVAX.IASTATE.EDU (Adam Goldberg) writes: |> In article <65841@eerie.acsu.Buffalo.EDU>, haozhou@acsu.buffalo.edu (Hao Zhou) writes: |> >I wrote an application program using Turbo C graphics package. The |> >only problem I have is that I have to keep the BGI driver in the |> >current directory otherwise the program will say the BGI driver is not |> >found. |> > |> >My question is how do I tell my program to search for the BGI driver |> >in a path specified somehow if the BGI driver is not present in the |> >current directory? |> > |> |> It is possible to link the BGI driver in with the executable code (EXE file), |> by: |> o Using the BGIOBJ utility to create an OBJ verion of the BGI driver |> o LINKing the OBJ BGI driver with your code OBJ file |> o Doing either a 'registerbgidriver()' or 'registerfarbgidriver()' function |> call before the 'initgraph()' call. |> |> (Consult your manual for further info--though I got this from the Waite Group's |> Turbo C++ Bible -- these functions work in TC2.0 as well). I use an environment variable BGI_DIR. If it's set, I use it. Otherwise, I use the current directory. -- Jody Hagins hagins@gamecock.rtp.dg.com Data General Corp. 62 Alexander Dr. RTP, N.C. 27709 (919) 248-6035 Nothing I ever say reflects the opinions of DGC.
woiccak@acsu.buffalo.edu (thomas s woiccak) (03/20/91)
getting off the "accessing BGI driver" question, How does one access an
environment variable from a C/C++ program? I know there is a simple
solution, but...
Tom Woiccak
--
-Thomas S. Woiccak, State Univ. of New York at Buffalo, Dept. of Comp. Sci.
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UUCP: ...!{rutgers,uunet}!acsu.buffalo.edu!woiccak mouse@thunder.mcrcim.mcgill.edu (der Mouse) (03/23/91)
In article <66461@eerie.acsu.Buffalo.EDU>, woiccak@acsu.buffalo.edu (thomas s woiccak) writes: > How does one access an environment variable from a C/C++ program? char *getenv(char *varname); der Mouse old: mcgill-vision!mouse new: mouse@larry.mcrcim.mcgill.edu