How to run example under windows xp

[xixioba]

I compiled the sample code under msys2 mingw32.

g++ -DUNICODE -I../.. -I../../backends main.cpp ../../backends/imgui_impl_opengl3.cpp ../../backends/imgui_impl_win32.cpp ../../imgui*.cpp -o Debug/example_win32_opengl3.exe --static -mwindows -lopengl32 -lgdi32 -ldwmapi -lopengl32 -lgdi32 -ldwmapi

When I first ran it, I got the error dwmapi.dll not found. I downloaded this dll to fix this problem.

Then I got the error point_ftol2 could not be located int the dynamic link library msvcrt.dll.

I don't know how to fix it.

[nicolasnoble]

Windows XP has long been deprecated by Microsoft, and msys2 / mingw dropped support for it some time ago. It's not expected to work there, and you're not supposed to use this ancient operating system anymore.

[xixioba]

@nicolasnoble For some reason, I wanted to test the platform compatibility of imgui and egui.

After some attempts, the good news is that example_glfw_opengl2 can be successfully run in VMware with Windows XP SP3

Anyone who searches here can refer to my solution(both Mingw32 and Msvc are available)

• MSYS2 Mingw32, install gcc, make and glfw dependencies (link for more packages)

  pacman -S make mingw-w64-i686-gcc mingw-w64-i686-glfw
  

  Modify the makefile and make, thats all

  CXXFLAGS = -std=c++11 -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
  CXXFLAGS += -g -Wall -Wformat -D _USING_V110_SDK71_ -Wl,--subsystem,windows -Wl,--subsystem,console -static -static-libgcc -static-libstdc++
  LIBS =
  

• Msvc(Visual Studio 2019 16.9.26 is the last version that supports XP)
  If you only use the command line, just download and install BuildTools and check Windows XP Support
  Modify ths build_win32.bat and build_win32.bat, thats all

  cl /nologo /Zi /MD /utf-8 /D_USING_V110_SDK71_ %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link /SUBSYSTEM:WINDOWS,5.01 /SUBSYSTEM:CONSOLE,5.01 %LIBS%
  

  Now you can copy the generated executable program to Windows XP, run it, you can see a simple demonstration, have fun!

[LTVA1]

Although it only works for 32-bit windows xp, probably because 64 bit one doesn't have service pack 3. How to compile for windows xp 64-bit? I don't see software renderer example there, but it's probably the only way to do it. I have seen imgui app compiled for Windows 2000 though

[xixioba]

I don't have Windows XP x64 Service Pack 3 so I haven't tried it yet. If you have any good results, please post them. It will be interesting.

[LTVA1]

Quick googling told me there never was any service pack 3 for 64-bit windows xp versions. I probably need to try software renderer for those old systems but I have very little experience with those build systems and old Windows support. Maybe you have some example? I know a dear imgui app which states it can be run even on Windows 2000, but build system is based on cmake and some Linux scripts I can't run on Windows even with mingw... And app is big so I can't easily boil it down into an example

[LTVA1]

Maybe you will be able to condense it into nice one-file example? App is https://github.com/tildearrow/furnace

[xixioba]

Looks cool, but this is just my hobby outside of work, so it may not be of any help to you. I will let you know if there is more progress.