I need a broad spectrum understanding on this subject, and any help would be greatly appreciated.
First of all, as I understand it...
The way the video hardware works is the CPU sends information about input and possible changes to the display, the video card receives these changes, makes the... (2 Replies)
does anybody have any experience with any of these composite video to usb devices on linux?
usb video capture - Google Product Search
would like to get one but a linux newbie and having trouble figuring out if any are ported...
i've found lots of things that link to freedesktop.org DisplayLink... (1 Reply)
SDL_WasInit(3) SDL API Reference SDL_WasInit(3)NAME
SDL_WasInit - Check which subsystems are initialized
SYNOPSIS
#include "SDL.h"
Uint32 SDL_WasInit(Uint32 flags);
DESCRIPTION
SDL_WasInit allows you to see which SDL subsytems have been initialized. flags is a bitwise OR'd combination of the subsystems you wish to
check (see SDL_Init for a list of subsystem flags).
RETURN VALUE
SDL_WasInit returns a bitwised OR'd combination of the initialized subsystems.
EXAMPLES
/* Here are several ways you can use SDL_WasInit() */
/* Get init data on all the subsystems */
Uint32 subsystem_init;
subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING);
if(subsystem_init&SDL_INIT_VIDEO)
printf("Video is initialized.
");
else
printf("Video is not initialized.
");
/* Just check for one specfic subsystem */
if(SDL_WasInit(SDL_INIT_VIDEO)!=0)
printf("Video is initialized.
");
else
printf("Video is not initialized.
");
/* Check for two subsystems */
Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO;
if(SDL_WasInit(subsystem_mask)==subsystem_mask)
printf("Video and Audio initialized.
");
else
printf("Video and Audio not initialized.
");
SEE ALSO
SDL_Init, SDL_Subsystem
SDL Tue 11 Sep 2001, 23:00 SDL_WasInit(3)