Here is a list of all files with brief descriptions:

[detail level 123456]

► bindings
► c++
plstream.cc
plstream.h
► d
plplot.d
► fortran
plplot.f90
plplot_double.f90
plplot_single.f90
plplot_small_modules.f90
► ocaml
► plcairo
plcairo_impl.c
plplot_impl.c
► python
makedocstrings.py
TclSup.py
► qt_gui
► smoke
plplotqt_smoke.h
plqt.cpp
► tcl
matrixInit.c
plplot_parameters.h
pltcl.c
pltcl.h
tclAPI.c
tclMain.c
tclMatrix.c
tclMatrix.h
► tk
plframe.c
plr.c
plserver.c
plserver.h
pltk.h
Pltk_Init.c
pltkd.h
stupidtk.c
tcpip.c
tcpip.h
tkMain.c
tkshell.c
► tk-x-plat
plplotter.c
Plplotter_Init.c
pltkwd.h
► wxwidgets
wxPLplot_nanosec.cpp
wxPLplotstream.cpp
wxPLplotstream.h
wxPLplotwindow.h
► bindings
► lua
plplotluacLUA_wrap.c
► ocaml
plplot_core.h
plplot_core_stubs.c
plplot_impl.c
► octave
plplot_octaveOCTAVE_wrap.cxx
► python
plplotc.py
plplotcPYTHON_wrap.c
Pltk_init.py
► qt_gui
► plplotqt_autogen
► DGKZTCOIDE
moc_qt.cpp
moc_qt.cpp.d
moc_predefs.h
mocs_compilation.cpp
► pyqt5
► build
► plplot_pyqt5
sipAPIplplot_pyqt5.h
sipplplot_pyqt5cmodule.cpp
sipplplot_pyqt5QtExtWidget.cpp
sipplplot_pyqt5QtPLDriver.cpp
sipplplot_pyqt5QtPLWidget.cpp
sip.h
sip.h
sipAPIplplot_pyqt5.h
sipplplot_pyqt5cmodule.cpp
sipplplot_pyqt5QtExtWidget.cpp
sipplplot_pyqt5QtPLDriver.cpp
sipplplot_pyqt5QtPLWidget.cpp
► tcl
tclgen.c
tclgen.h
tclgen_s.h
► wxwidgets
wxPLplot_nanosec.h
► drivers
aqt.c
cairo.c
cgm.c
gd.c
mem.c
ntk.c
null.c
pdf.c
plmeta.c
ps.c
pstex.c
psttf.cc
qt.cpp
svg.c
test-drv-info.c
tk.c
tkwin.c
wingcc.c
wingdi.c
wxwidgets.cpp
wxwidgets.h
wxwidgets_comms.cpp
wxwidgets_comms.h
wxwidgets_dev.cpp
xfig.c
xwin.c
► include
dirent_msvc.h
disptab.h
drivers.h
ltdl_win32.h
metadefs.h
pdf.h
plcore.h
pldebug.h
plevent.h
plfci-truetype.h
plfci-type1.h
plfreetype.h
plplot.h
plplotP.h
plstrm.h
plunicode-type1.h
plxwd.h
ps.h
qt.h
► include
plConfig.h
plDevs.h
pldll.h
plhershey-unicode.h
► lib
► csa
csa.c
csa.h
nan.h
version.h
► nistcd
cd.c
cd.h
cdexpert.c
cdmulti.c
cdsimple.c
cdtest.c
cdtext.c
color16.c
defines.h
► nn
delaunay.c
delaunay.h
hash.c
hash.h
istack.c
istack.h
lpi.c
nan.h
nn.h
nnai.c
nncommon.c
nnpi.c
version.h
► qsastime
bhunt_search_test.c
deltaT-gen.c
deltaT_test.c
dspline.c
dspline.h
dsplint.c
dsplint.h
qsastime.c
qsastime.h
qsastime_extra.c
qsastime_extra.h
qsastime_test.c
qsastime_testlib.c
tai-utc-gen.c
► lib
► csa
csadll.h
► nn
nndll.h
► qsastime
deltaT.h
qsastimedll.h
qsastimeP.h
tai-utc.h
► src
ltdl_win32.c
mt19937ar.c
mt19937ar.h
pdfutils.c
plaffine.c
plarc.c
plargs.c
plbox.c
plbuf.c
plcont.c
plcore.c
plctrl.c
plcvt.c
pldtik.c
plf2ops.c
plfill.c
plfreetype.c
plgradient.c
plgridd.c
plhist.c
plimage.c
pllegend.c
plline.c
plmap.c
plmem.c
plmetafile.c
plot3d.c
plpage.c
plsdef.c
plshade.c
plstdio.c
plstripc.c
plsym.c
pltick.c
pltime.c
plvect.c
plvpor.c
plwind.c
plplot_config.h