section 3 · Library functions 📚

S (continued)

• SDL_realloc(3)Change the size of allocated memory.✨
• SDL_realloc_func(3type)A callback used to implement SDL_realloc().✨
• SDL_Rect(3)Defines a rectangular area✨
• SDL_Rect(3type)A rectangle, with the origin at the upper left (using integers).✨
• SDL_RectEmpty(3)Determine whether a rectangle has no area.✨
• SDL_RectEmptyFloat(3)Determine whether a floating point rectangle takes no space.✨
• SDL_RectsEqual(3)Determine whether two rectangles are equal.✨
• SDL_RectsEqualEpsilon(3)Determine whether two floating point rectangles are equal, within some given epsilon.✨
• SDL_RectsEqualFloat(3)Determine whether two floating point rectangles are equal, within a default epsilon.✨
• SDL_RectToFRect(3)Convert an SDL_Rect to SDL_FRect✨
• SDL_RegisterApp(3)Register a win32 window class for SDL's use.✨
• SDL_RegisterEvents(3)Allocate a set of user-defined events, and return the beginning event number for that set of events.✨
• SDL_reinterpret_cast(3)Handle a Reinterpret Cast properly whether using C or C++.✨
• SDL_RELEASE(3)Wrapper around Clang thread safety analysis annotations.✨
• SDL_RELEASE_GENERIC(3)Wrapper around Clang thread safety analysis annotations.✨
• SDL_RELEASE_SHARED(3)Wrapper around Clang thread safety analysis annotations.✨
• SDL_ReleaseCameraFrame(3)Release a frame of video acquired from a camera.✨
• SDL_ReleaseGPUBuffer(3)Frees the given buffer as soon as it is safe to do so.✨
• SDL_ReleaseGPUComputePipeline(3)Frees the given compute pipeline as soon as it is safe to do so.✨
• SDL_ReleaseGPUFence(3)Releases a fence obtained from SDL_SubmitGPUCommandBufferAndAcquireFence.✨
• SDL_ReleaseGPUGraphicsPipeline(3)Frees the given graphics pipeline as soon as it is safe to do so.✨
• SDL_ReleaseGPUSampler(3)Frees the given sampler as soon as it is safe to do so.✨
• SDL_ReleaseGPUShader(3)Frees the given shader as soon as it is safe to do so.✨
• SDL_ReleaseGPUTexture(3)Frees the given texture as soon as it is safe to do so.✨
• SDL_ReleaseGPUTransferBuffer(3)Frees the given transfer buffer as soon as it is safe to do so.✨
• SDL_ReleaseWindowFromGPUDevice(3)Unclaims a window, destroying its swapchain structure.✨
• SDL_ReloadGamepadMappings(3)Reinitialize the SDL mapping database to its initial state.✨
• SDL_RemoveEventWatch(3)Remove an event watch callback added with SDL_AddEventWatch().✨
• SDL_RemoveHintCallback(3)Remove a function watching a particular hint.✨
• SDL_RemovePath(3)Remove a file or an empty directory.✨
• SDL_RemoveStoragePath(3)Remove a file or an empty directory in a writable storage container.✨
• SDL_RemoveSurfaceAlternateImages(3)Remove all alternate versions of a surface.✨
• SDL_RemoveTimer(3)Remove a timer created with SDL_AddTimer().✨
• SDL_RemoveTrayEntry(3)Removes a tray entry.✨
• SDL_RenamePath(3)Rename a file or directory.✨
• SDL_RenameStoragePath(3)Rename a file or directory in a writable storage container.✨
• SDL_RenderClear(3)Clear the current rendering target with the drawing color.✨
• SDL_RenderClipEnabled(3)Get whether clipping is enabled on the given render target.✨
• SDL_RenderCoordinatesFromWindow(3)Get a point in render coordinates when given a point in window coordinates.✨
• SDL_RenderCoordinatesToWindow(3)Get a point in window coordinates when given a point in render coordinates.✨
• SDL_RenderDebugText(3)Draw debug text to an SDL_Renderer.✨
• SDL_RenderDebugTextFormat(3)Draw debug text to an SDL_Renderer.✨
• SDL_Renderer(3type)A structure representing rendering state✨
• SDL_RendererLogicalPresentation(3type)How the logical size is mapped to the output.✨
• SDL_RenderEvent(3type)Renderer event structure (event.render.*)✨
• SDL_RenderFillRect(3)Fill a rectangle on the current rendering target with the drawing color at subpixel precision.✨
• SDL_RenderFillRects(3)Fill some number of rectangles on the current rendering target with the drawing color at subpixel precision.✨
• SDL_RenderGeometry(3)Render a list of triangles, optionally using a texture and indices into the vertex array Color and alpha modulation is done per vertex (SDL_SetTextureColorMod and SDL_SetTextureAlphaMod are ignored).✨
• SDL_RenderGeometryRaw(3)Render a list of triangles, optionally using a texture and indices into the vertex arrays Color and alpha modulation is done per vertex (SDL_SetTextureColorMod and SDL_SetTextureAlphaMod are ignored).✨
• SDL_RenderLine(3)Draw a line on the current rendering target at subpixel precision.✨
• SDL_RenderLines(3)Draw a series of connected lines on the current rendering target at subpixel precision.✨
• SDL_RenderPoint(3)Draw a point on the current rendering target at subpixel precision.✨
• SDL_RenderPoints(3)Draw multiple points on the current rendering target at subpixel precision.✨
• SDL_RenderPresent(3)Update the screen with any rendering performed since the previous call.✨
• SDL_RenderReadPixels(3)Read pixels from the current rendering target.✨
• SDL_RenderRect(3)Draw a rectangle on the current rendering target at subpixel precision.✨
• SDL_RenderRects(3)Draw some number of rectangles on the current rendering target at subpixel precision.✨
• SDL_RenderTexture(3)Copy a portion of the texture to the current rendering target at subpixel precision.✨
• SDL_RenderTexture9Grid(3)Perform a scaled copy using the 9-grid algorithm to the current rendering target at subpixel precision.✨
• SDL_RenderTexture9GridTiled(3)Perform a scaled copy using the 9-grid algorithm to the current rendering target at subpixel precision.✨
• SDL_RenderTextureAffine(3)Copy a portion of the source texture to the current rendering target, with affine transform, at subpixel precision.✨
• SDL_RenderTextureRotated(3)Copy a portion of the source texture to the current rendering target, with rotation and flipping, at subpixel precision.✨
• SDL_RenderTextureTiled(3)Tile a portion of the texture to the current rendering target at subpixel precision.✨
• SDL_RenderViewportSet(3)Return whether an explicit rectangle was set as the viewport.✨
• SDL_ReportAssertion(3)Never call this directly.✨
• SDL_RequestAndroidPermission(3)Request permissions at runtime, asynchronously.✨
• SDL_RequestAndroidPermissionCallback(3type)Callback that presents a response from a SDL_RequestAndroidPermission call.✨
• SDL_REQUIRES(3)Wrapper around Clang thread safety analysis annotations.✨
• SDL_REQUIRES_SHARED(3)Wrapper around Clang thread safety analysis annotations.✨
• SDL_ResetAssertionReport(3)Clear the list of all assertion failures.✨
• SDL_ResetHint(3)Reset a hint to the default value.✨
• SDL_ResetHints(3)Reset all hints to the default values.✨
• SDL_ResetKeyboard(3)Clear the state of the keyboard.✨
• SDL_ResetLogPriorities(3)Reset all priorities to default.✨
• SDL_ResizeEvent(3)Window resize event structure✨
• SDL_RestoreWindow(3)Request that the size and position of a minimized or maximized window be restored.✨
• SDL_RESTRICT(3)A macro to tag a pointer variable, to help with pointer aliasing.✨
• SDL_ResumeAudioDevice(3)Use this function to unpause audio playback on a specified device.✨
• SDL_ResumeAudioStreamDevice(3)Use this function to unpause audio playback on the audio device associated with an audio stream.✨
• SDL_ResumeHaptic(3)Resume a haptic device.✨
• SDL_RETURN_CAPABILITY(3)Wrapper around Clang thread safety analysis annotations.✨
• SDL_REVISION(3)This macro is a string describing the source at a particular point in development.✨
• SDL_RotateSurface(3)Return a copy of a surface rotated clockwise a number of degrees.✨
• SDL_round(3)Round x to the nearest integer.✨
• SDL_roundf(3)Round x to the nearest integer.✨
• SDL_RumbleGamepad(3)Start a rumble effect on a gamepad.✨
• SDL_RumbleGamepadTriggers(3)Start a rumble effect in the gamepad's triggers.✨
• SDL_RumbleJoystick(3)Start a rumble effect.✨
• SDL_RumbleJoystickTriggers(3)Start a rumble effect in the joystick's triggers.✨
• SDL_RunApp(3)Initializes and launches an SDL application, by doing platform-specific initialization before calling your mainFunction and cleanups after it returns, if that is needed for a specific platform…✨
• SDL_RunHapticEffect(3)Run the haptic effect on its associated haptic device.✨
• SDL_RunOnMainThread(3)Call a function on the main thread during event processing.✨
• SDL_RWFromFile(3)Short description of function✨
• SDL_RWLock(3type)A mutex that allows read-only threads to run in parallel.✨
• SDL_Sandbox(3type)Application sandbox environment.✨
• SDL_SaveBMP(3)Save a surface to a file in BMP format.✨
• SDL_SaveBMP_IO(3)Save a surface to a seekable SDL data stream in BMP format.✨
• SDL_SaveFile(3)Save all the data into a file path.✨
• SDL_SaveFile_IO(3)Save all the data into an SDL data stream.✨
• SDL_SavePNG(3)Save a surface to a file in PNG format.✨
• SDL_SavePNG_IO(3)Save a surface to a seekable SDL data stream in PNG format.✨
• SDL_scalbn(3)Scale x by an integer power of two.✨
• SDL_scalbnf(3)Scale x by an integer power of two.✨
• SDL_ScaleMode(3type)The scaling mode.✨
• SDL_ScaleSurface(3)Creates a new surface identical to the existing surface, scaled to the desired size.✨
• SDL_Scancode(3type)The SDL keyboard scancode representation.✨
• SDL_SCANF_FORMAT_STRING(3)Macro that annotates function params as scanf- style format strings.✨
• SDL_SCANF_VARARG_FUNC(3)Macro that annotates a vararg function that operates like scanf.✨
• SDL_SCANF_VARARG_FUNCV(3)Macro that annotates a va_list function that operates like scanf.✨
• SDL_SCOPED_CAPABILITY(3)Wrapper around Clang thread safety analysis annotations.✨
• SDL_ScreenKeyboardShown(3)Check whether the screen keyboard is shown for given window.✨
• SDL_ScreenSaverEnabled(3)Check whether the screensaver is currently enabled.✨
• SDL_SECONDS_TO_NS(3)Convert seconds to nanoseconds.✨
• SDL_SeekIO(3)Seek within an SDL_IOStream data stream.✨
• SDL_Semaphore(3type)A means to manage access to a resource, by count, between threads.✨
• SDL_SemPost(3)Unlock a semaphore.✨
• SDL_SemTryWait(3)Attempt to lock a semaphore but don't suspend the thread.✨
• SDL_SemValue(3)Return the current value of a semaphore.✨
• SDL_SemWait(3)Lock a semaphore and suspend the thread if the semaphore value is zero.✨
• SDL_SemWaitTimeout(3)Lock a semaphore, but only wait up to a specified maximum time.✨
• SDL_SendAndroidBackButton(3)Trigger the Android system back button behavior.✨
• SDL_SendAndroidMessage(3)Send a user command to SDLActivity.✨
• SDL_SendGamepadEffect(3)Send a gamepad specific effect packet.✨
• SDL_SendJoystickEffect(3)Send a joystick specific effect packet.✨
• SDL_SendJoystickVirtualSensorData(3)Send a sensor update for an opened virtual joystick.✨
• SDL_Sensor(3type)The opaque structure used to identify an opened SDL sensor.✨
• SDL_SensorEvent(3type)Sensor event structure (event.sensor.*)✨
• SDL_SensorID(3type)This is a unique ID for a sensor for the time it is connected to the system, and is never reused for the lifetime of the application.✨
• SDL_SensorType(3type)The different sensors defined by SDL.✨
• SDL_SetAlpha(3)Adjust the alpha properties of a surface✨
• SDL_SetAppMetadata(3)Specify basic metadata about your app.✨
• SDL_SetAppMetadataProperty(3)Specify metadata about your app through a set of properties.✨
• SDL_SetAssertionHandler(3)Set an application-defined assertion handler.✨
• SDL_SetAtomicInt(3)Set an atomic variable to a value.✨
• SDL_SetAtomicPointer(3)Set a pointer to a value atomically.✨
• SDL_SetAtomicU32(3)Set an atomic variable to a value.✨
• SDL_SetAudioDeviceGain(3)Change the gain of an audio device.✨
• SDL_SetAudioPostmixCallback(3)Set a callback that fires when data is about to be fed to an audio device.✨
• SDL_SetAudioStreamFormat(3)Change the input and output formats of an audio stream.✨
• SDL_SetAudioStreamFrequencyRatio(3)Change the frequency ratio of an audio stream.✨
• SDL_SetAudioStreamGain(3)Change the gain of an audio stream.✨
• SDL_SetAudioStreamGetCallback(3)Set a callback that runs when data is requested from an audio stream.✨
• SDL_SetAudioStreamInputChannelMap(3)Set the current input channel map of an audio stream.✨
• SDL_SetAudioStreamOutputChannelMap(3)Set the current output channel map of an audio stream.✨
• SDL_SetAudioStreamPutCallback(3)Set a callback that runs when data is added to an audio stream.✨
• SDL_SetBooleanProperty(3)Set a boolean property in a group of properties.✨
• SDL_SetClipboardData(3)Offer clipboard data to the OS.✨
• SDL_SetClipboardText(3)Put UTF-8 text into the clipboard.✨
• SDL_SetClipRect(3)Sets the clipping rectangle for a surface.✨
• SDL_SetColorKey(3)Sets the color key (transparent pixel) in a blittable surface and RLE acceleration.✨
• SDL_SetColors(3)Sets a portion of the colormap for the given 8-bit surface.✨
• SDL_SetCurrentThreadPriority(3)Set the priority for the current thread.✨
• SDL_SetCursor(3)Set the active cursor.✨
• SDL_SetDefaultTextureScaleMode(3)Set default scale mode for new textures for given renderer.✨
• SDL_setenv_unsafe(3)Set the value of a variable in the environment.✨
• SDL_SetEnvironmentVariable(3)Set the value of a variable in the environment.✨
• SDL_SetError(3)Set the SDL error message for the current thread.✨
• SDL_SetErrorV(3)Set the SDL error message for the current thread.✨
• SDL_SetEventEnabled(3)Set the state of processing events by type.✨
• SDL_SetEventFilter(3)Set up a filter to process all events before they are added to the internal event queue.✨
• SDL_SetFloatProperty(3)Set a floating point property in a group of properties.✨
• SDL_SetGamepadEventsEnabled(3)Set the state of gamepad event processing.✨
• SDL_SetGamepadLED(3)Update a gamepad's LED color.✨
• SDL_SetGamepadMapping(3)Set the current mapping of a joystick or gamepad.✨
• SDL_SetGamepadPlayerIndex(3)Set the player index of an opened gamepad.✨
• SDL_SetGamepadSensorEnabled(3)Set whether data reporting for a gamepad sensor is enabled.✨
• SDL_SetGamma(3)Sets the color gamma function for the display✨
• SDL_SetGammaRamp(3)Sets the color gamma lookup tables for the display✨
• SDL_SetGPUAllowedFramesInFlight(3)Configures the maximum allowed number of frames in flight.✨
• SDL_SetGPUBlendConstants(3)Sets the current blend constants on a command buffer.✨
• SDL_SetGPUBufferName(3)Sets an arbitrary string constant to label a buffer.✨
• SDL_SetGPURenderState(3)Set custom GPU render state.✨
• SDL_SetGPURenderStateFragmentUniforms(3)Set fragment shader uniform variables in a custom GPU render state.✨
• SDL_SetGPUScissor(3)Sets the current scissor state on a command buffer.✨
• SDL_SetGPUStencilReference(3)Sets the current stencil reference value on a command buffer.✨
• SDL_SetGPUSwapchainParameters(3)Changes the swapchain parameters for the given claimed window.✨
• SDL_SetGPUTextureName(3)Sets an arbitrary string constant to label a texture.✨
• SDL_SetGPUViewport(3)Sets the current viewport state on a command buffer.✨
• SDL_SetHapticAutocenter(3)Set the global autocenter of the device.✨
• SDL_SetHapticGain(3)Set the global gain of the specified haptic device.✨
• SDL_SetHint(3)Set a hint with normal priority.✨
• SDL_SetHintWithPriority(3)Set a hint with a specific priority.✨
• SDL_SetInitialized(3)Finish an initialization state transition.✨
• SDL_SetiOSAnimationCallback(3)Use this function to set the animation callback on Apple iOS.✨
• SDL_SetiOSEventPump(3)Use this function to enable or disable the SDL event pump on Apple iOS.✨
• SDL_SetJoystickEventsEnabled(3)Set the state of joystick event processing.✨
• SDL_SetJoystickLED(3)Update a joystick's LED color.✨
• SDL_SetJoystickPlayerIndex(3)Set the player index of an opened joystick.✨
• SDL_SetJoystickVirtualAxis(3)Set the state of an axis on an opened virtual joystick.✨
• SDL_SetJoystickVirtualBall(3)Generate ball motion on an opened virtual joystick.✨
• SDL_SetJoystickVirtualButton(3)Set the state of a button on an opened virtual joystick.✨
• SDL_SetJoystickVirtualHat(3)Set the state of a hat on an opened virtual joystick.✨
• SDL_SetJoystickVirtualTouchpad(3)Set touchpad finger state on an opened virtual joystick.✨
• SDL_SetLinuxThreadPriority(3)Sets the UNIX nice value for a thread.✨
• SDL_SetLinuxThreadPriorityAndPolicy(3)Sets the priority (not nice level) and scheduling policy for a thread.✨
• SDL_SetLogOutputFunction(3)Replace the default log output function with one of your own.✨
• SDL_SetLogPriorities(3)Set the priority of all log categories.✨
• SDL_SetLogPriority(3)Set the priority of a particular log category.✨
• SDL_SetLogPriorityPrefix(3)Set the text prepended to log messages of a given priority.✨
• SDL_SetMainReady(3)Circumvent failure of SDL_Init() when not using SDL_main() as an entry point.✨