[Trying again with correct email address.]
The nmv-header? problem should have been fixed. What version of Scheme are you using? On Dec 26, 2019, 1:03 PM -0500, David Liu <[email protected]>, wrote: > Ah great, applying that patch finally allowed psgo.scm to complete loading > successfully, and it popped up three blank windows named g1, g2, and g3, as > expected from the source code of psgo.scm from the book's website. > > However, I tried (paint g1 fovnder), where g1 is the window and fovnder is > the loaded painter, and it complained that > "The procedure c-call has been called with 2 arguments; it requires at least > 0 arguments. Type D to debug error, Q to quit back to REP loop". > > I typed D but instead of popping up the debugger (as it did when I was > debugging a previous issue in this thread), it only echoed at the bottom > "Internal error: Unbound variable: nmv-header?". Hence, I will attempt to > manually trace out the stack. > > In the "paint" function [1], the offending line is the final one, which in my > case evals to (picture-display g1 *the-screen* 0 256). The "picture-display" > function is in src/6001/picture.scm, and is quite opaque, and I cannot find > any instances of "c-call" anywhere. Any idea what might be the problem here? > > > [1] from hend.scm: > (define (paint window painter) > (if (not (graphics-device? window)) > (error "bad window" window)) > (set-painter-resolution! 128) > (painter (screen-frame)) > (picture-display window *the-screen* 0 256)) >
