3 replies to this topic

[Flustration]

Hello! My SDL OpenGL application is based on SDL. For some reason, I receive input fine via the SDL_Event unless I add the SDL_Fullscreen flag. In full screen mode, I get no input events at all, strangely.

//Start SDL,

	if( SDL_Init( SDL_INIT_EVERYTHING ) != 0 )
	{
		printf("SDL failed to initialize: %s\n", SDL_GetError());
		return 1;
	}

	//Set up screen

	SDL_Surface* screen;

	SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
	SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
	SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
	SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);

	if((screen = SDL_SetVideoMode( 900, 600, 32, SDL_OPENGL | SDL_FULLSCREEN)) == NULL)
	{
	 printf("Error creating SDL surface: %s\n", SDL_GetError());
	}

Thanks much!

Edited by Flustration, 10 May 2012 - 07:23 PM.

[DemonRad]

maybe your resolution is not supported? try using a different resolution like 800,600.

[Flustration]

Well, the app initiates at the appropriate resolution and everything... I just lose input.

[AlanSmithee]

Hello!

I don't have a solution for you, the code you provided doesn't really give any indications either.
If the problem was related to setting up the screen, chanses are the application would crash or atleast the rendering would be acting in a non-predictive way.

There are some very subtle and wierd behaviour that can occour though that are hard to trace. Once when I changed my BPP from 32 to 16 my application would crash and it turned out that the actual cause was that I was using frame capping and with 16 BPP the frame-time was so low that it caused negative values which resulted in a crash. Not saying this is what is happening to you, but it might be something that is hard to see by just looking at your code and changed you make can affect things that seem to be unrelated.

My suggestion is using breakpoints and watches and debug your application, should be fairly easy to find the bug if you do.
If you still can't find it I think we would need more code to be of help!

BR / AS.

Edited by AlanSmithee, 10 May 2012 - 07:11 AM.