Add defconfig for Microwindows Integration and Examples. by Acfboy · Pull Request #19572 · apache/nuttx

Acfboy · 2026-07-28T14:49:43Z

Summary

Add ]board configurations sim:mw and qemu-intel64:mw that enable the Microwindows graphics library and its mwdemo demo application.

sim:mw uses virtual keyboard + touchscreen + framebuffer;
qemu-intel64:mw uses USB HID keyboard/mouse + framebuffer.

Related pr: apache/nuttx-apps#3624

Impact

New feature: YES — Microwindows board configurations for sim and qemu-intel64
Documentation: YES
No impact on existing configs, build, hardware, security, or compatibility.

Testing

Build Host: Linux x86_64, GCC 14.2

sim:mw:

tools/configure.sh sim:mw && make -j
./nuttx   # opens X11 window, mwdemo runs

qemu-intel64:mw:

tools/configure.sh qemu-intel64:mw && make -j

Create bootable ISO with GRUB2 (see doc)

qemu-system-x86_64 -cpu host -enable-kvm -m 2G \
      -cdrom boot_mw.iso \
      -serial stdio -monitor none -no-reboot \
      -device qemu-xhci -device usb-kbd -device usb-mouse

linguini1

Please follow the PR template.

Also, could you please document the two new defconfigs under the board documentation pages?

Acfboy · 2026-07-28T16:58:36Z

Updated with documents and standered pr message now.

Addressed

linguini1 · 2026-07-28T17:33:53Z

Can you add a screenshot of the window?

Can you please split your commit into at least two: one for sim and one for QEMU?

Could you add the Assisted-by field to your commit(s) if you used AI tooling?

github-actions · 2026-07-28T19:55:36Z

MemBrowse Memory Report

No memory changes detected for:

michallenc · 2026-07-29T09:41:27Z

I am getting several compile warnings (in microwindows library) and a compile error because of undefined reference to fnt_createfont.

I tried to build sim:mw config with your core branch against upstream NuttX apps.

./tools/configure.sh sim:mw
make

Create version.h
LN: platform/board to /home/michal/Michal/projects/nuttx/apps/platform/dummy
Register: mwdemo
Register: dd
CP:  /home/michal/Michal/projects/nuttx/core/include/nuttx/config.h
CP:  /home/michal/Michal/projects/nuttx/core/include/nuttx/fs/hostfs.h
CC:  sim/sim_doirq.c /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/images/tools/convbmp.c: In function ‘ConvBMP’:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/images/tools/convbmp.c:379:32: warning: declaration of ‘p’ shadows a previous local [-Wshadow]
  379 |                 unsigned char *p = imagebits + i*pitch;
      |                                ^
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/images/tools/convbmp.c:255:8: note: shadowed declaration is here
  255 | UCHAR *p = (UCHAR *)&l;
      |        ^
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/images/tools/convbmp.c:404:32: warning: declaration of ‘p’ shadows a previous local [-Wshadow]
  404 |                 unsigned char *p = imagebits + i*pitch;
      |                                ^
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/images/tools/convbmp.c:255:8: note: shadowed declaration is here
  255 | UCHAR *p = (UCHAR *)&l;
      |        ^
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/images/tools/convbmp.c: In function ‘DecodeRLE4’:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/images/tools/convbmp.c:577:66: warning: ‘c1’ may be used uninitialized [-Wmaybe-uninitialized]
  577 |                                                         put4((c1 >> 4) & 0x0f);
      |                                                              ~~~~^~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/images/tools/convbmp.c:549:23: note: ‘c1’ was declared here
  549 | int             c, n, c1, c2;
      |                       ^~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from mwdemo_main.c:31:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  mm_heap/mm_calloc.c In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from mwdemo.c:20:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  vfs/fs_truncate.c /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/drivers/fb.c: In function ‘select_fb_subdriver’:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/drivers/fb.c:108:27: warning: unused variable ‘memplan4’ [-Wunused-variable]
  108 |         extern PSUBDRIVER memplan4[4];
      |                           ^~~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/drivers/rasterops.c: In function ‘GdRasterOp’:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/drivers/rasterops.c:310:5: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
  310 |     if (op == PIX_DST)   /* no-op */
      |     ^~
In file included from /home/michal/Michal/projects/nuttx/core/include/nuttx/mutex.h:30,
                 from /home/michal/Michal/projects/nuttx/core/include/nuttx/fs/fs.h:46,
                 from /home/michal/Michal/projects/nuttx/core/include/stdio.h:36,
                 from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/drivers/rasterops.c:33:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/drivers/rasterops.c:314:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
  314 |         assert((pixd->pitch & 3) == 0);
      |         ^~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winclip2.c:7,
                 from microwindows/src/mwin/winclip.c:4:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winexpos.c:11:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/caret.c:11:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  signal/sig_nanosleep.c In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/button.c:1:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/wingdi.c:7:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  sched/sched_getfiles.c microwindows/src/mwin/wingdi.c:35:35: warning: missing braces around initializer [-Wmissing-braces]
   35 | static MWPALOBJ default_palette = {
      |                                   ^
   36 |         {OBJ_PAL, TRUE}, 0, 0
      |                          {
   37 | };
      | }
CC:  pthread/pthread_cancel.c microwindows/src/mwin/wingdi.c: In function ‘FillRect’:
microwindows/src/mwin/wingdi.c:787:38: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  787 |                 crFill = GetSysColor((int)obr-1);       // OK: Not pointer. Convert to int then decrement.
      |                                      ^
CC:  misc/lib_crc16xmodem.c In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/insetr.c:1:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/medit.c:53:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/ptinsid.c:1:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  microwindows/src/mwin/winlib/newlistbox.c In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/progbar.c:52:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/newlistbox.c:16:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/static.c:53:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/scrlbar.c:11:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/windlg.c:18:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/graph3d.c:8:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/newedit.c:32:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winmain.c:22:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  microwindows/src/mwin/winlib/fastfill.c In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winrgn.c:14:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/fastfill.c:1:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  net/lib_etherntoa.c In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winres.c:15:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  signal/sig_ppoll.c microwindows/src/mwin/winres.c: In function ‘mwResCompare’:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:175:38: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  175 | #define HIWORD(l)           ((WORD)(((DWORD)(l) >> 16) & 0xFFFF))
      |                                      ^
microwindows/src/mwin/winres.c:67:14: note: in expansion of macro ‘HIWORD’
   67 |         if ((HIWORD(res1) == 0xFFFF) || (HIWORD(res2) == 0xFFFF))       // OK: Not pointer. Checks high word of resource DWORD.
      |              ^~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:175:38: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  175 | #define HIWORD(l)           ((WORD)(((DWORD)(l) >> 16) & 0xFFFF))
      |                                      ^
microwindows/src/mwin/winres.c:67:42: note: in expansion of macro ‘HIWORD’
   67 |         if ((HIWORD(res1) == 0xFFFF) || (HIWORD(res2) == 0xFFFF))       // OK: Not pointer. Checks high word of resource DWORD.
      |                                          ^~~~~~
CC:  signal/sig_pause.c microwindows/src/mwin/winres.c: In function ‘mwIsSameType’:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:175:38: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  175 | #define HIWORD(l)           ((WORD)(((DWORD)(l) >> 16) & 0xFFFF))
      |                                      ^
microwindows/src/mwin/winres.c:261:13: note: in expansion of macro ‘HIWORD’
  261 |         if (HIWORD(id) == 0xFFFF) {
      |             ^~~~~~
microwindows/src/mwin/winres.c:268:33: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  268 |                 if (w == LOWORD((DWORD) id))
      |                                 ^
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:174:37: note: in definition of macro ‘LOWORD’
  174 | #define LOWORD(l)           ((WORD)(l))
      |                                     ^
microwindows/src/mwin/winres.c: In function ‘resDialogTemplate’:
microwindows/src/mwin/winres.c:541:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  541 |         *extra++ = (WORD)menu;          // OK: No string menus yet, menu id always passed as WORD.
      |                    ^
microwindows/src/mwin/winres.c:542:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  542 |         *extra++ = (WORD)classname;     // OK: No string classes yet, class id always passed as WORD.
      |                    ^
CC:  microwindows/src/mwin/winlib/draw3d.c In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winuser.c:20:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  signal/sig_suspend.c In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winsbar.c:9:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/draw3d.c:1:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
CC:  obstack/lib_obstack_copy.c microwindows/src/mwin/winuser.c: In function ‘CreateWindowEx’:
microwindows/src/mwin/winuser.c:492:18: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  492 |         wp->id = (int)hMenu;                            // OK: Not pointer. Menu id always passed as int.
      |                  ^
microwindows/src/mwin/winsbar.c: In function ‘ShowScrollBar’:
microwindows/src/mwin/winsbar.c:799:21: warning: variable ‘rcClient’ set but not used [-Wunused-but-set-variable]
  799 |         RECT rcWin, rcClient;
      |                     ^~~~~~~~
microwindows/src/mwin/winuser.c: In function ‘GetClassLong’:
microwindows/src/mwin/winuser.c:1304:24: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
 1304 |                 return (DWORD)hwnd->pClass->hbrBackground;              // OK: Pointer size checked above and is 32 bit.
      |                        ^
microwindows/src/mwin/winuser.c: In function ‘SetProp’:
microwindows/src/mwin/winuser.c:1517:38: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
 1517 |                 pProp->Atom = LOWORD((DWORD)lpString);                  // OK: Not pointer. Atom passed in low 16 bits.
      |                                      ^
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:174:37: note: in definition of macro ‘LOWORD’
  174 | #define LOWORD(l)           ((WORD)(l))
      |                                     ^
microwindows/src/mwin/winuser.c: In function ‘GetProp’:
microwindows/src/mwin/winuser.c:1535:31: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
 1535 |                 Atom = LOWORD((DWORD)lpString);                         // OK: Not pointer. Atom passed in low 16 bits.
      |                               ^
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:174:37: note: in definition of macro ‘LOWORD’
  174 | #define LOWORD(l)           ((WORD)(l))
      |                                     ^
microwindows/src/mwin/winuser.c: In function ‘RemoveProp’:
microwindows/src/mwin/winuser.c:1557:31: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
 1557 |                 Atom = LOWORD((DWORD)lpString);                         // OK: Not pointer. Atom passed in low 16 bits.
      |                               ^
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:174:37: note: in definition of macro ‘LOWORD’
  174 | #define LOWORD(l)           ((WORD)(l))
      |                                     ^
microwindows/src/mwin/winuser.c: In function ‘SetWindowPos’:
CC:  obstack/lib_obstack_alloc.c microwindows/src/mwin/winuser.c:1659:24: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
 1659 |                 switch((int)hwndInsertAfter) {                  // OK: intentional HWND to int cast
      |                        ^
microwindows/src/mwin/winuser.c:1660:22: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
 1660 |                 case (int)(HWND)HWND_TOP:                               // OK: intentional HWND to int cast
      |                      ^
microwindows/src/mwin/winuser.c:1663:22: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
 1663 |                 case (int)(HWND)HWND_BOTTOM:                    // OK: intentional HWND to int cast
      |                      ^
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winlib/combobox.c:36:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
microwindows/src/mwin/winlib/combobox.c: In function ‘DefComboboxProc’:
microwindows/src/mwin/winlib/combobox.c:350:19: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  350 |         lp->nID = (UINT) lpcs->hMenu;        //OK:  Not pointer, control id always passed as UINT.
      |                   ^
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winfont.c:8:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/winevent.c:13:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
In file included from /home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windows.h:21,
                 from microwindows/src/mwin/windefw.c:10:
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:168:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  168 | typedef int (FAR *FARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:169:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  169 | typedef int (NEAR *NEARPROC)();
      | ^~~~~~~
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/include/windef.h:170:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
  170 | typedef int (*PROC)();
      | ^~~~~~~
LD:  nuttx
/usr/bin/ld: nuttx.rel: in function `GdCreateFont':
/home/michal/Michal/projects/nuttx/apps/graphics/microwindows/microwindows/src/engine/devfont.c:254:(.text.GdCreateFont+0x351): undefined reference to `fnt_createfont'
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:490: nuttx] Error 1
make: *** [tools/Unix.mk:569: nuttx] Error 2

Acfboy · 2026-07-29T16:07:53Z

Sorry, this was my oversight when cleaning up config items from Make.defs to Makefile — I forgot to add HAVE_FNT_SUPPORT = Y in Makefile. Fixed it in apache/nuttx-apps#3678

Add the sim:mw defconfig and board documentation entry for the Microwindows demo. This configuration uses the virtual keyboard (event mode), touchscreen, and X11-based framebuffer. Signed-off-by: Acfboy <AcfboyU@outlook.com> Assisted-by: Opencode/Deepseek-V4-pro

Add the qemu-intel64:mw defconfig and board documentation entry, and the Microwindows application documentation page. This configuration uses the framebuffer, USB HID keyboard (raw byte stream), and USB HID mouse. Signed-off-by: Acfboy <AcfboyU@outlook.com> Assisted-by: Opencode/Deepseek-V4-pro Signed-off-by: Acfboy <AcfboyU@outlook.com>

This page covers the Microwindows integration, quick start for both sim:mw and qemu-intel64:mw configurations, available Kconfig options for keyboard/mouse/framebuffer drivers, the mwdemo demo application, and porting guidance for new hardware. Signed-off-by: Acfboy <AcfboyU@outlook.com> Assisted-by: Opencode/Deepseek-V4-pro

Acfboy · 2026-07-29T17:33:55Z

Can you add a screenshot of the window?

Can you please split your commit into at least two: one for sim and one for QEMU?

Could you add the Assisted-by field to your commit(s) if you used AI tooling?

Okay. Thanks for the suggestions.

linguini1 previously requested changes Jul 28, 2026

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Acfboy force-pushed the add-microwindows branch from 49f3454 to 90123b0 Compare July 28, 2026 16:57

Acfboy requested review from btashton, raiden00pl, tmedicci and yamt as code owners July 28, 2026 16:57

xiaoxiang781216 previously approved these changes Jul 28, 2026

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github-actions Bot added Area: Documentation Improvements or additions to documentation Size: M The size of the change in this PR is medium Board: simulator Board: x86_64 labels Jul 28, 2026

jerpelea previously approved these changes Jul 29, 2026

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anchao previously approved these changes Jul 29, 2026

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Acfboy added 3 commits July 30, 2026 01:22

Acfboy dismissed stale reviews from anchao, jerpelea, and xiaoxiang781216 via c2a44dd July 29, 2026 17:33

Acfboy force-pushed the add-microwindows branch from 90123b0 to c2a44dd Compare July 29, 2026 17:33

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Add defconfig for Microwindows Integration and Examples. - #19572

Add defconfig for Microwindows Integration and Examples.#19572
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