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Fix SDL2-example for Linux

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The header is called "SDL_opengl.h" - case matters on Linux.

The main() function must indeed be called main(), on Windows it'll be
renamed to SDL_main (for SDL2main.lib) by #define in SDL_main.h
(which is included by SDL.h)

I added an entry to the example's README that describes how to build
it on Linux.
This commit is contained in:
Daniel Gibson 2015-07-16 03:54:44 +02:00
parent 3ff04c95d5
commit 02a0967243
3 changed files with 9 additions and 3 deletions
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6
examples/sdl_opengl_example/README.md
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@ -8,3 +8,9 @@
``` ```
cl /MD /I <sdl2path\include> /I ..\.. main.cpp imgui_impl_sdl.cpp ..\..\imgui.cpp /link /LIBPATH:<sdl2path\lib> SDL2.lib SDL2main.lib cl /MD /I <sdl2path\include> /I ..\.. main.cpp imgui_impl_sdl.cpp ..\..\imgui.cpp /link /LIBPATH:<sdl2path\lib> SDL2.lib SDL2main.lib
``` ```
- On Linux and similar Unices
```
c++ `sdl2-config --cflags` -I ../.. main.cpp imgui_impl_sdl.cpp ../../imgui.cpp `sdl2-config --libs` -lGL -o sdl2example
```

2
examples/sdl_opengl_example/imgui_impl_sdl.cpp
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@ -3,7 +3,7 @@
#include <SDL.h> #include <SDL.h>
#include <SDL_syswm.h> #include <SDL_syswm.h>
#include <SDL_OpenGL.h> #include <SDL_opengl.h>
#include <imgui.h> #include <imgui.h>
#include "imgui_impl_sdl.h" #include "imgui_impl_sdl.h"

4
examples/sdl_opengl_example/main.cpp
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@ -4,9 +4,9 @@
#include "imgui_impl_sdl.h" #include "imgui_impl_sdl.h"
#include <stdio.h> #include <stdio.h>
#include <SDL.h> #include <SDL.h>
#include <SDL_OpenGL.h> #include <SDL_opengl.h>
int SDL_main(int, char**) int main(int, char**)
{ {
// Setup SDL // Setup SDL
if (SDL_Init(SDL_INIT_EVERYTHING) != 0) if (SDL_Init(SDL_INIT_EVERYTHING) != 0)