Quote:
Original post by Arenth
This might seem sort of obvious but use the freopen( "CON", "w", stdout ); call after sdl_init(); since SDL_init(); is the call that calls
freopens ("CON",w/e,"stdout.txt");.. It worked awesome for me....
#include <iostream>#include <SDL/SDL.h>#include <SDL/SDL_opengl.h>#include <SDL/SDL_image.h>using namespace std; SDL_Surface *screen; int init_sdl(){ freopen( "CON", "w", stdout ); SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO);int videoflags= SDL_HWSURFACE|SDL_DOUBLEBUF|SDL_OPENGL|SDL_ASYNCBLIT; screen = SDL_SetVideoMode(300, 300 , 32, videoflags); glViewport( 0, 0,300, 300 );};int main_loop(){ SDL_Event event; Uint8 *keystate; int done=0; while(!done) { cout<<"1"<<endl; glClearColor (0.7f, 0.9f, 0.9f, 1.0f); glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); SDL_GL_SwapBuffers( ); keystate = SDL_GetKeyState(NULL); if ( keystate[SDLK_ESCAPE] ) {done=1;} while ( SDL_PollEvent(&event) ) { if ( event.type == SDL_QUIT ) { done = 1; } } //while } //while return 0;}int dummy(){ SDL_Surface *img = IMG_Load("ab.bmp");}; int main(int argc, char *argv[]){ init_sdl(); main_loop(); return 0;}#include <iostream>#include <fstream>#include <SDL/SDL.h>#include <SDL/SDL_opengl.h>using namespace std; SDL_Surface *screen; ofstream ctt("CON"); int init_sdl(){ SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO); freopen( "CON", "w", stdout ); freopen( "con", "w", stderr ); screen = SDL_SetVideoMode(300, 300 , 32, SDL_HWSURFACE|SDL_DOUBLEBUF|SDL_OPENGL|SDL_ASYNCBLIT); glViewport( 0, 0,300, 300 ); ctt.close(); };int main_loop(){ SDL_Event event; Uint8 *keystate; int done=0; while(!done) { cout<<"cout"<<endl; cerr<<"cerr"<<endl; glClearColor (0.7f, 0.9f, 0.9f, 1.0f); glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); SDL_GL_SwapBuffers( ); keystate = SDL_GetKeyState(NULL); if ( keystate[SDLK_ESCAPE] ) {done=1;} while ( SDL_PollEvent(&event) ) { if ( event.type == SDL_QUIT ) { done = 1; } } //while } //while return 0;} int main(int argc, char *argv[]){ init_sdl(); main_loop(); return 0;}#include <SDL/SDL.h>#include <stdio.h>SDL_Surface *screen;FILE * ctt = fopen("CON", "w" ); int init_sdl(){ SDL_Init( SDL_INIT_VIDEO ); freopen( "CON", "w", stdout ); freopen( "con", "w", stderr ); screen = SDL_SetVideoMode(300, 300 , 32, SDL_HWSURFACE|SDL_DOUBLEBUF ); fclose( ctt ); };int main_loop(){ SDL_Event event; Uint8 *keystate; int done=0; while(!done){ fprintf( stdout, "stdout\n" ); fprintf( stderr, "stderr\n" ); keystate = SDL_GetKeyState(NULL); if ( keystate[SDLK_ESCAPE] ){ done = 1; } while ( SDL_PollEvent(&event) ){ if ( event.type == SDL_QUIT ){ done = 1; } } //while } //while return 0;} int main( int argc, char *argv[] ){ init_sdl(); main_loop(); return 0;}Quote:
Original post by happybara
I've just installed the newest version of SDL libraries and my previous code stopped working :/. But the following one does. Can you give it a try ?
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FILE * ctt = fopen("CON", "w" );fclose( ctt );Quote:
stream
pointer to open file that has to be reopened.
FILE * ctt = fopen("CON", "w" ); foo = (int)freopen( "CON", "w", stdout ); bar = (int)freopen( "con", "w", stderr ); freopen( "stdout.txt", "w", stdout ); printf( "foo = %d, bar = %d, %d\n ", foo ,bar ); screen = SDL_SetVideoMode(300, 300 , 32, SDL_HWSURFACE|SDL_DOUBLEBUF ); fclose( ctt ); Quote:
Original post by Easca
OK from a quick scan through some documents ( C++ reference: cstdio: freopen:, MSDN and the UNIX manual page for freopen) I noted this little snippet:Quote:
stream
pointer to open file that has to be reopened.
So it appears that using devcpp/mingw the stdout/CON isn't opened so cannot be reopened. I'm guessing VC++ opens this file (CON) (and sdl or vc++ don't close it) allowing the freopen to work.
Another insignificant thing I noticed:
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With the first line commented out "foo" and "bar" have the values 0 and 0 or NULL and NULL.
