🚀 go-pugleaf

I'm having trouble using x on a Stardent (24 bit color)

The code works fine on Dec's

It apparently has trouble creating proper visuals and colormaps

Here's the relevant code:

    screen   = XDefaultScreen (display);
    parent   = XRootWindow    (display, screen);
    depth    = XDefaultDepth  (display, screen);
    planes   = XDisplayPlanes (display, screen);
    ncolors  = XDisplayCells  (display, screen);

    default_visual = DefaultVisual ( display, screen );

    switch ( default_visual->class ) {

    case PseudoColor:
      r = XMatchVisualInfo ( display, screen, depth, PseudoColor, &vis_info );
      break;
    case GrayScale:
      printf ( "GrayScale \n" );
      r = XMatchVisualInfo ( display, screen, depth, GrayScale, &vis_info );
      break;
    case DirectColor:
      printf ( "DirectColor \n" );
      r = XMatchVisualInfo ( display, screen, depth, DirectColor, &vis_info );
      break;
    case TrueColor:
/*
      r = XMatchVisualInfo ( display, screen, depth, TrueColor, &vis_info );
*/
      printf ( "TrueColor -> PseudoColor \n" );
      r = XMatchVisualInfo ( display, screen, depth, PseudoColor, &vis_info );
      break;
    default:
      printf ( " No visual found. \n");

    }
    if ( !r ) printf ( " Problem matching visual \n" );

    cmap = XCreateColormap ( display, parent, vis_info.visual, AllocAll );

    colors = (XColor *) malloc ( ncolors * sizeof (XColor) );

    colors = (XColor *) malloc ( ncolors * sizeof (XColor) );

    for (i=0;i<ncolors;i++) {
      colors[i].pixel = i;
      colors[i].red = colors[i].green = colors[i].blue = i*256;
      colors[i].flags = DoRed | DoGreen | DoBlue;
    }

    XStoreColors ( display, cmap, colors, ncolors);


The default visual is TrueColor, it was suggested that i use Pseudo anyway
hence the commented out XMatchVisual ( TrueColor )

Matching with PseudoColor however does print the (appropriate) error message
"problem matching visual", 
Both Pseudo and True result in 
X Protocol error:  BadValue, integer parameter out of range for operation
  Major opcode of failed request:  78 (X_CreateColormap)

I'd appreciate any help!

Ron Steriti
UMass Lowell
steritir@woods.ulowell.edu

The code works fine on Dec