No SDL2 window shown when compile and run

Question

I use DevC++ on Windowss 10 but my problem is that I followed some tutorials about SDL2 in C but when I write the program they give, it compiles well, however I can't see my window. The problem may come from the "searched directories " as I had issues to install SDL2 on DevC++

// Code :

#include <stdlib.h>
#include <stdio.h>
#include <SDL2\SDL.h>


int main(int argc, char* argv[])
{

    SDL_Window *ecran = NULL;
    SDL_Renderer *renderer;

    SDL_Init(SDL_INIT_VIDEO);

ecran = SDL_CreateWindow("DBZ", 0, 0, 640, 480, SDL_WINDOW_SHOWN);
renderer = SDL_CreateRenderer(ecran, -1, SDL_RENDERER_ACCELERATED);

SDL_RenderPresent(renderer);

SDL_Delay(30000);
SDL_Quit();


    return EXIT_SUCCESS;
}

Compiling project changes...

• Project Filename: C:\Users\Anthony\Desktop\programmes\SDL\Premier essai\Projet1.dev
• Compiler Name: TDM-GCC 4.9.2 64-bit Release

Building makefile...

• Filename: C:\Users\Anthony\Desktop\programmes\SDL\Premier essai\Makefile.win

Processing makefile...

• Makefile Processor: C:\Users\Anthony\Desktop\Dev-Cpp\MinGW64\bin\mingw32-make.exe
• Command: mingw32-make.exe -f "C:\Users\Anthony\Desktop\programmes\SDL\Premier essai\Makefile.win" all

mingw32-make.exe: Nothing to be done for 'all'.

Compilation results...

• Errors: 0
• Warnings: 0
• Output Filename: C:\Users\Anthony\Desktop\programmes\SDL\Premier essai\Projet1.exe
• Output Size: 298,20703125 KiB
• Compilation Time: 0,22s

Answer 1

Maybe your window just creates and immediately closing?. Try replace your SDL_Delay with:

bool quit = false;
mainEvent = new SDL_Event();

while (!quit && mainEvent->type != SDL_QUIT) {
    SDL_PollEvent(mainEvent);
    //...
}

Answer 2

I had the same problem on Windows; no issues with compilation, but instant exit on run. In my case, I was linking using the x86 rather than x64 binary when attempting to use a 64 bit build rather than a 32 bit build.

To reproduce the problem, I had just adjusted the development library paths, updating them to

CFLAGS = -std=c99 -Wall -pedantic -Werror -I..\SDL2-2.0.14\x86_64-w64-mingw32\include\SDL2 
LFLAGS = -lmingw32 -lSDL2main -lSDL2 -L..\SDL2-2.0.14\x86_64-w64-mingw32\lib

from -I..\SDL2-2.0.14\i686-w64-mingw32\include\SDL2, but hadn't yet replaced the .dll files. After grabbing the x64 binary from the site above, all was well.