section 3 · Library functions 📚

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S (continued)

SDL_IOWhence(3type)Possible whence values for SDL_IOStream seeking.✨
SDL_isalnum(3)Query if a character is alphabetic (a letter) or a number.✨
SDL_isalpha(3)Query if a character is alphabetic (a letter).✨
SDL_IsAudioDevicePhysical(3)Determine if an audio device is physical (instead of logical).✨
SDL_IsAudioDevicePlayback(3)Determine if an audio device is a playback device (instead of recording).✨
SDL_isblank(3)Report if a character is blank (a space or tab).✨
SDL_IsChromebook(3)Query if the application is running on a Chromebook.✨
SDL_iscntrl(3)Report if a character is a control character.✨
SDL_ISCOLORSPACE_FULL_RANGE(3)A macro to determine if an SDL_Colorspace has a full range.✨
SDL_ISCOLORSPACE_LIMITED_RANGE(3)A macro to determine if an SDL_Colorspace has a limited range.✨
SDL_ISCOLORSPACE_MATRIX_BT2020_NCL(3)A macro to determine if an SDL_Colorspace uses BT2020_NCL matrix coefficients.✨
SDL_ISCOLORSPACE_MATRIX_BT601(3)A macro to determine if an SDL_Colorspace uses BT601 (or BT470BG) matrix coefficients.✨
SDL_ISCOLORSPACE_MATRIX_BT709(3)A macro to determine if an SDL_Colorspace uses BT709 matrix coefficients.✨
SDL_IsDeXMode(3)Query if the application is running on a Samsung DeX docking station.✨
SDL_isdigit(3)Report if a character is a numeric digit.✨
SDL_IsGamepad(3)Check if the given joystick is supported by the gamepad interface.✨
SDL_isgraph(3)Report if a character is any "printable" except space.✨
SDL_isinf(3)Return whether the value is infinity.✨
SDL_isinff(3)Return whether the value is infinity.✨
SDL_IsJoystickHaptic(3)Query if a joystick has haptic features.✨
SDL_IsJoystickVirtual(3)Query whether or not a joystick is virtual.✨
SDL_islower(3)Report if a character is lower case.✨
SDL_IsMainThread(3)Return whether this is the main thread.✨
SDL_IsMouseHaptic(3)Query whether or not the current mouse has haptic capabilities.✨
SDL_isnan(3)Return whether the value is NaN.✨
SDL_isnanf(3)Return whether the value is NaN.✨
SDL_ISPIXELFORMAT_10BIT(3)A macro to determine if an SDL_PixelFormat is a 10-bit format.✨
SDL_ISPIXELFORMAT_ALPHA(3)A macro to determine if an SDL_PixelFormat has an alpha channel.✨
SDL_ISPIXELFORMAT_ARRAY(3)A macro to determine if an SDL_PixelFormat is an array format.✨
SDL_ISPIXELFORMAT_FLOAT(3)A macro to determine if an SDL_PixelFormat is a floating point format.✨
SDL_ISPIXELFORMAT_FOURCC(3)A macro to determine if an SDL_PixelFormat is a "FourCC" format.✨
SDL_ISPIXELFORMAT_INDEXED(3)A macro to determine if an SDL_PixelFormat is an indexed format.✨
SDL_ISPIXELFORMAT_PACKED(3)A macro to determine if an SDL_PixelFormat is a packed format.✨
SDL_isprint(3)Report if a character is "printable".✨
SDL_ispunct(3)Report if a character is a punctuation mark.✨
SDL_isspace(3)Report if a character is whitespace.✨
SDL_IsTablet(3)Query if the current device is a tablet.✨
SDL_IsTV(3)Query if the current device is a TV.✨
SDL_isupper(3)Report if a character is upper case.✨
SDL_isxdigit(3)Report if a character is a hexadecimal digit.✨
SDL_itoa(3)Convert an integer into a string.✨
SDL_JoyAxisEvent(3)Joystick axis motion event structure✨
SDL_JoyAxisEvent(3type)Joystick axis motion event structure (event.jaxis.*)✨
SDL_JoyBallEvent(3)Joystick trackball motion event structure✨
SDL_JoyBallEvent(3type)Joystick trackball motion event structure (event.jball.*)✨
SDL_JoyBatteryEvent(3type)Joystick battery level change event structure (event.jbattery.*)✨
SDL_JoyButtonEvent(3)Joystick button event structure✨
SDL_JoyButtonEvent(3type)Joystick button event structure (event.jbutton.*)✨
SDL_JoyDeviceEvent(3type)Joystick device event structure (event.jdevice.*)✨
SDL_JoyHatEvent(3)Joystick hat position change event structure✨
SDL_JoyHatEvent(3type)Joystick hat position change event structure (event.jhat.*)✨
SDL_Joystick(3type)The joystick structure used to identify an SDL joystick.✨
SDL_JOYSTICK_AXIS_MAX(3)The largest value an SDL_Joystick's axis can report.✨
SDL_JOYSTICK_AXIS_MIN(3)The smallest value an SDL_Joystick's axis can report.✨
SDL_JoystickClose(3)Closes a previously opened joystick✨
SDL_JoystickConnected(3)Get the status of a specified joystick.✨
SDL_JoystickConnectionState(3type)Possible connection states for a joystick device.✨
SDL_JoystickEventsEnabled(3)Query the state of joystick event processing.✨
SDL_JoystickEventState(3)Enable/disable joystick event polling✨
SDL_JoystickGetAxis(3)Get the current state of an axis✨
SDL_JoystickGetBall(3)Get relative trackball motion✨
SDL_JoystickGetButton(3)Get the current state of a given button on a given joystick✨
SDL_JoystickGetHat(3)Get the current state of a joystick hat✨
SDL_JoystickID(3type)This is a unique ID for a joystick for the time it is connected to the system, and is never reused for the lifetime of the application.✨
SDL_JoystickIndex(3)Get the index of an SDL_Joystick.✨
SDL_JoystickName(3)Get joystick name.✨
SDL_JoystickNumAxes(3)Get the number of joystick axes✨
SDL_JoystickNumBalls(3)Get the number of joystick trackballs✨
SDL_JoystickNumButtons(3)Get the number of joysitck buttons✨
SDL_JoystickNumHats(3)Get the number of joystick hats✨
SDL_JoystickOpen(3)Opens a joystick for use.✨
SDL_JoystickOpened(3)Determine if a joystick has been opened✨
SDL_JoystickType(3type)An enum of some common joystick types.✨
SDL_JoystickUpdate(3)Updates the state of all joysticks✨
SDL_KeyboardDeviceEvent(3type)Keyboard device event structure (event.kdevice.*)✨
SDL_KeyboardEvent(3)Keyboard event structure✨
SDL_KeyboardEvent(3type)Keyboard button event structure (event.key.*)✨
SDL_KeyboardID(3type)This is a unique ID for a keyboard for the time it is connected to the system, and is never reused for the lifetime of the application.✨
SDL_Keycode(3type)The SDL virtual key representation.✨
SDL_Keymod(3type)Valid key modifiers (possibly OR'd together).✨
SDL_keysym(3)Keysym structure✨
SDL_KillProcess(3)Stop a process.✨
SDL_KillThread(3)Gracelessly terminates the thread.✨
SDL_LASX_INTRINSICS(3)Defined if (and only if) the compiler supports Loongarch LSX intrinsics.✨
SDL_LIL_ENDIAN(3)A value to represent littleendian byteorder.✨
SDL_LINE(3)A macro that reports the current line number of the file being compiled.✨
SDL_ListModes(3)Returns a pointer to an array of available screen dimensions for the given format and video flags✨
SDL_lltoa(3)Convert a long long integer into a string.✨
SDL_LoadBMP(3)Load a BMP image from a file.✨
SDL_LoadBMP_IO(3)Load a BMP image from a seekable SDL data stream.✨
SDL_LoadFile(3)Load all the data from a file path.✨
SDL_LoadFile_IO(3)Load all the data from an SDL data stream.✨
SDL_LoadFileAsync(3)Load all the data from a file path, asynchronously.✨
SDL_LoadFunction(3)Look up the address of the named function in a shared object.✨
SDL_LoadObject(3)Dynamically load a shared object.✨
SDL_LoadPNG(3)Load a PNG image from a file.✨
SDL_LoadPNG_IO(3)Load a PNG image from a seekable SDL data stream.✨
SDL_LoadSurface(3)Load a BMP or PNG image from a file.✨
SDL_LoadSurface_IO(3)Load a BMP or PNG image from a seekable SDL data stream.✨
SDL_LoadWAV(3)Loads a WAV from a file path.✨
SDL_LoadWAV_IO(3)Load the audio data of a WAVE file into memory.✨
SDL_Locale(3type)A struct to provide locale data.✨
SDL_LockAudio(3)Lock out the callback function✨
SDL_LockAudioStream(3)Lock an audio stream for serialized access.✨
SDL_LockJoysticks(3)Locking for atomic access to the joystick API.✨
SDL_LockMutex(3)Lock the mutex.✨
SDL_LockProperties(3)Lock a group of properties.✨
SDL_LockRWLockForReading(3)Lock the read/write lock for _read only_ operations.✨
SDL_LockRWLockForWriting(3)Lock the read/write lock for _write_ operations.✨
SDL_LockSpinlock(3)Lock a spin lock by setting it to a non-zero value.✨
SDL_LockSurface(3)Set up a surface for directly accessing the pixels.✨
SDL_LockTexture(3)Lock a portion of the texture for write-only pixel access.✨
SDL_LockTextureToSurface(3)Lock a portion of the texture for write-only pixel access, and expose it as a SDL surface.✨
SDL_LockYUVOverlay(3)Lock an overlay✨
SDL_Log(3)Log a message with SDL_LOG_CATEGORY_APPLICATION and SDL_LOG_PRIORITY_INFO.✨
SDL_log(3)Compute the natural logarithm of x.✨
SDL_log10(3)Compute the base-10 logarithm of x.✨
SDL_log10f(3)Compute the base-10 logarithm of x.✨
SDL_LogCategory(3type)The predefined log categories✨
SDL_LogCritical(3)Log a message with SDL_LOG_PRIORITY_CRITICAL.✨
SDL_LogDebug(3)Log a message with SDL_LOG_PRIORITY_DEBUG.✨
SDL_LogError(3)Log a message with SDL_LOG_PRIORITY_ERROR.✨
SDL_logf(3)Compute the natural logarithm of x.✨
SDL_LogInfo(3)Log a message with SDL_LOG_PRIORITY_INFO.✨
SDL_LogMessage(3)Log a message with the specified category and priority.✨
SDL_LogMessageV(3)Log a message with the specified category and priority.✨
SDL_LogOutputFunction(3type)The prototype for the log output callback function.✨
SDL_LogPriority(3type)The predefined log priorities✨
SDL_LogTrace(3)Log a message with SDL_LOG_PRIORITY_TRACE.✨
SDL_LogVerbose(3)Log a message with SDL_LOG_PRIORITY_VERBOSE.✨
SDL_LogWarn(3)Log a message with SDL_LOG_PRIORITY_WARN.✨
SDL_lround(3)Round x to the nearest integer representable as a long✨
SDL_lroundf(3)Round x to the nearest integer representable as a long✨
SDL_LSX_INTRINSICS(3)Defined if (and only if) the compiler supports Loongarch LSX intrinsics.✨
SDL_ltoa(3)Convert a long integer into a string.✨
SDL_main(3)An app-supplied function for program entry.✨
SDL_MAIN_AVAILABLE(3)Defined if the target platform offers a special mainline through SDL.✨
SDL_main_func(3type)The prototype for the application's main() function✨
SDL_MAIN_HANDLED(3)Inform SDL that the app is providing an entry point instead of SDL.✨
SDL_MAIN_NEEDED(3)Defined if the target platform _requires_ a special mainline through SDL.✨
SDL_MAIN_USE_CALLBACKS(3)Inform SDL to use the main callbacks instead of main.✨
SDL_MainThreadCallback(3type)Callback run on the main thread.✨
SDL_MAJOR_VERSION(3)The current major version of SDL headers.✨
SDL_MALLOC(3)A macro to tag a function as an allocator.✨
SDL_malloc(3)Allocate uninitialized memory.✨
SDL_malloc_func(3type)A callback used to implement SDL_malloc().✨
SDL_MapGPUTransferBuffer(3)Maps a transfer buffer into application address space.✨
SDL_MapRGB(3)Map an RGB triple to an opaque pixel value for a given pixel format.✨
SDL_MapRGBA(3)Map an RGBA quadruple to a pixel value for a given pixel format.✨
SDL_MapSurfaceRGB(3)Map an RGB triple to an opaque pixel value for a surface.✨
SDL_MapSurfaceRGBA(3)Map an RGBA quadruple to a pixel value for a surface.✨
SDL_MatrixCoefficients(3type)Colorspace matrix coefficients.✨
SDL_max(3)Return the greater of two values.✨
SDL_MaximizeWindow(3)Request that the window be made as large as possible.✨
SDL_memcmp(3)Compare two buffers of memory.✨
SDL_memcpy(3)Copy non-overlapping memory.✨
SDL_memmove(3)Copy memory ranges that might overlap.✨
SDL_MemoryBarrierAcquire(3)Insert a memory acquire barrier (macro version).✨
SDL_MemoryBarrierAcquireFunction(3)Insert a memory acquire barrier (function version).✨
SDL_MemoryBarrierRelease(3)Insert a memory release barrier (macro version).✨
SDL_MemoryBarrierReleaseFunction(3)Insert a memory release barrier (function version).✨
SDL_memset(3)Initialize all bytes of buffer of memory to a specific value.✨
SDL_memset4(3)Initialize all 32-bit words of buffer of memory to a specific value.✨
SDL_MessageBoxButtonData(3type)Individual button data.✨
SDL_MessageBoxButtonFlags(3type)SDL_MessageBoxButtonData flags.✨
SDL_MessageBoxColor(3type)RGB value used in a message box color scheme✨
SDL_MessageBoxColorScheme(3type)A set of colors to use for message box dialogs✨
SDL_MessageBoxColorType(3type)An enumeration of indices inside the colors array of SDL_MessageBoxColorScheme.✨
SDL_MessageBoxData(3type)MessageBox structure containing title, text, window, etc.✨
SDL_MessageBoxFlags(3type)Message box flags.✨
SDL_Metal_CreateView(3)Create a CAMetalLayer-backed NSView/UIView and attach it to the specified window.✨
SDL_Metal_DestroyView(3)Destroy an existing SDL_MetalView object.✨
SDL_Metal_GetLayer(3)Get a pointer to the backing CAMetalLayer for the given view.✨
SDL_MetalView(3type)A handle to a CAMetalLayer-backed NSView (macOS) or UIView (iOS/tvOS).✨
SDL_MICRO_VERSION(3)The current micro (or patchlevel) version of the SDL headers.✨
SDL_min(3)Return the lesser of two values.✨
SDL_MinimizeWindow(3)Request that the window be minimized to an iconic representation.✨
SDL_MINOR_VERSION(3)The current minor version of the SDL headers.✨
SDL_MixAudio(3)Mix audio data in a specified format.✨
SDL_MIXER_MAJOR_VERSION(3)The current major version of SDL_mixer headers.✨
SDL_MIXER_MICRO_VERSION(3)The current micro (or patchlevel) version of the SDL_mixer headers.✨
SDL_MIXER_MINOR_VERSION(3)The current minor version of the SDL_mixer headers.✨
SDL_MIXER_VERSION(3)This is the current version number macro of the SDL_mixer headers.✨
SDL_MIXER_VERSION_ATLEAST(3)This macro will evaluate to true if compiled with SDL_mixer at least X.Y.Z.✨
SDL_MMX_INTRINSICS(3)Defined if (and only if) the compiler supports Intel MMX intrinsics.✨
SDL_modf(3)Split x into integer and fractional parts✨
SDL_modff(3)Split x into integer and fractional parts✨
SDL_MostSignificantBitIndex32(3)Get the index of the most significant (set) bit in a 32-bit number.✨
SDL_MOUSE_TOUCHID(3)The SDL_TouchID for touch events simulated with mouse input.✨
SDL_MouseButtonEvent(3)Mouse button event structure✨
SDL_MouseButtonEvent(3type)Mouse button event structure (event.button.*)✨
SDL_MouseButtonFlags(3type)A bitmask of pressed mouse buttons, as reported by SDL_GetMouseState, etc.✨
SDL_MouseDeviceEvent(3type)Mouse device event structure (event.mdevice.*)✨
SDL_MouseID(3type)This is a unique ID for a mouse for the time it is connected to the system, and is never reused for the lifetime of the application.✨
SDL_MouseMotionEvent(3)Mouse motion event structure✨
SDL_MouseMotionEvent(3type)Mouse motion event structure (event.motion.*)✨
SDL_MouseMotionTransformCallback(3type)A callback used to transform mouse motion delta from raw values.✨
SDL_MouseWheelDirection(3type)Scroll direction types for the Scroll event✨
SDL_MouseWheelEvent(3type)Mouse wheel event structure (event.wheel.*)✨
SDL_MS_PER_SECOND(3)Number of milliseconds in a second.✨