CSFML - C binding of the Simple and Fast Multimedia Library

CSFML 3.0.0

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Classes | Enumerations | Functions
Window.h File Reference
`#include <CSFML/Window/Export.h>`
`#include <CSFML/System/Time.h>`
`#include <CSFML/System/Vector2.h>`
`#include <CSFML/Window/Event.h>`
`#include <CSFML/Window/Types.h>`
`#include <CSFML/Window/VideoMode.h>`
`#include <CSFML/Window/WindowBase.h>`
`#include <CSFML/Window/WindowHandle.h>`

Go to the source code of this file.

## Classes
struct | sfContextSettings
| Structure defining the window's creation settings. More...

## Enumerations
enum | sfContextAttribute { sfContextDefault = 0 , sfContextCore = 1 << 0 , sfContextDebug = 1 << 2 }
| Enumeration of the context attribute flags. More...

## Functions
sfWindow * | sfWindow_create (sfVideoMode mode, const char *title, uint32_t style, sfWindowState state, const sfContextSettings *settings)
| Construct a new window.
sfWindow * | sfWindow_createUnicode (sfVideoMode mode, const sfChar32 *title, uint32_t style, sfWindowState state, const sfContextSettings *settings)
| Construct a new window (with a UTF-32 title)
sfWindow * | sfWindow_createFromHandle (sfWindowHandle handle, const sfContextSettings *settings)
| Construct a window from an existing control.
void | sfWindow_destroy (const sfWindow *window)
| Destroy a window.
void | sfWindow_close (sfWindow *window)
| Close a window and destroy all the attached resources.
bool | sfWindow_isOpen (const sfWindow *window)
| Tell whether or not a window is opened.
sfContextSettings | sfWindow_getSettings (const sfWindow *window)
| Get the settings of the OpenGL context of a window.
bool | sfWindow_pollEvent (sfWindow *window, sfEvent *event)
| Pop the event on top of event queue, if any, and return it.
bool | sfWindow_waitEvent (sfWindow *window, sfTime timeout, sfEvent *event)
| Wait for an event and return it.
sfVector2i | sfWindow_getPosition (const sfWindow *window)
| Get the position of a window.
void | sfWindow_setPosition (sfWindow *window, sfVector2i position)
| Change the position of a window on screen.
sfVector2u | sfWindow_getSize (const sfWindow *window)
| Get the size of the rendering region of a window.
void | sfWindow_setSize (sfWindow *window, sfVector2u size)
| Change the size of the rendering region of a window.
void | sfWindow_setTitle (sfWindow *window, const char *title)
| Change the title of a window.
void | sfWindow_setUnicodeTitle (sfWindow *window, const sfChar32 *title)
| Change the title of a window (with a UTF-32 string)
void | sfWindow_setIcon (sfWindow *window, sfVector2u size, const uint8_t *pixels)
| Change a window's icon.
void | sfWindow_setVisible (sfWindow *window, bool visible)
| Show or hide a window.
void | sfWindow_setVerticalSyncEnabled (sfWindow *window, bool enabled)
| Enable or disable vertical synchronization.
void | sfWindow_setMouseCursorVisible (sfWindow *window, bool visible)
| Show or hide the mouse cursor.
void | sfWindow_setMouseCursorGrabbed (sfWindow *window, bool grabbed)
| Grab or release the mouse cursor.
void | sfWindow_setMouseCursor (sfWindow *window, const sfCursor *cursor)
| Set the displayed cursor to a native system cursor.
void | sfWindow_setKeyRepeatEnabled (sfWindow *window, bool enabled)
| Enable or disable automatic key-repeat.
void | sfWindow_setFramerateLimit (sfWindow *window, unsigned int limit)
| Limit the framerate to a maximum fixed frequency.
void | sfWindow_setJoystickThreshold (sfWindow *window, float threshold)
| Change the joystick threshold.
bool | sfWindow_setActive (sfWindow *window, bool active)
| Activate or deactivate a window as the current target for OpenGL rendering.
void | sfWindow_requestFocus (sfWindow *window)
| Request the current window to be made the active foreground window.
bool | sfWindow_hasFocus (const sfWindow *window)
| Check whether the window has the input focus.
void | sfWindow_display (sfWindow *window)
| Display on screen what has been rendered to the window so far.
sfWindowHandle | sfWindow_getNativeHandle (const sfWindow *window)
| Get the OS-specific handle of the window.
bool | sfWindow_createVulkanSurface (sfWindow *window, const VkInstance *instance, VkSurfaceKHR *surface, const VkAllocationCallbacks *allocator)
| Create a Vulkan rendering surface.

## Enumeration Type Documentation

## ◆ sfContextAttribute

enum sfContextAttribute

Enumeration of the context attribute flags.

Enumerator
sfContextDefault | Non-debug, compatibility context (this and the core attribute are mutually exclusive)
sfContextCore | Core attribute.
sfContextDebug | Debug attribute.

Definition at line 45 of file Window/Window.h.

## Function Documentation

## ◆ sfWindow_close()

void sfWindow_close | ( | sfWindow * | window | ) |

Close a window and destroy all the attached resources.

After calling this function, the sfWindow object remains valid, you must call sfWindow_destroy to actually delete it. All other functions such as sfWindow_pollEvent or sfWindow_display will still work (i.e. you don't have to test sfWindow_isOpen every time), and will have no effect on closed windows.

Parameters

  window | Window object

## ◆ sfWindow_create()

sfWindow * sfWindow_create | ( | sfVideoMode | mode,
|  | const char * | title,
|  | uint32_t | style,
|  | sfWindowState | state,
|  | const sfContextSettings * | settings )

Construct a new window.

This function creates the window with the size and pixel depth defined in mode. An optional style can be passed to customize the look and behaviour of the window (borders, title bar, resizable, closable, ...). If style contains sfFullscreen, then mode must be a valid video mode.

The fourth parameter is a pointer to a structure specifying advanced OpenGL context settings such as anti-aliasing, depth-buffer bits, etc.

Parameters

  mode | Video mode to use (defines the width, height and depth of the rendering area of the window)
  title | Title of the window
  style | Window style
  state | Window state
  settings | Additional settings for the underlying OpenGL context

Returns
  A new sfWindow object

## ◆ sfWindow_createFromHandle()

sfWindow * sfWindow_createFromHandle | ( | sfWindowHandle | handle,
|  | const sfContextSettings * | settings )

Construct a window from an existing control.

Use this constructor if you want to create an OpenGL rendering area into an already existing control.

The second parameter is a pointer to a structure specifying advanced OpenGL context settings such as anti-aliasing, depth-buffer bits, etc.

Parameters

  handle | Platform-specific handle of the control
  settings | Additional settings for the underlying OpenGL context

Returns
  A new sfWindow object

## ◆ sfWindow_createUnicode()

sfWindow * sfWindow_createUnicode | ( | sfVideoMode | mode,
|  | const sfChar32 * | title,
|  | uint32_t | style,
|  | sfWindowState | state,
|  | const sfContextSettings * | settings )

Construct a new window (with a UTF-32 title)

This function creates the window with the size and pixel depth defined in mode. An optional style can be passed to customize the look and behaviour of the window (borders, title bar, resizable, closable, ...). If style contains sfFullscreen, then mode must be a valid video mode.

The fourth parameter is a pointer to a structure specifying advanced OpenGL context settings such as anti-aliasing, depth-buffer bits, etc.

Parameters

  mode | Video mode to use (defines the width, height and depth of the rendering area of the window)
  title | Title of the window (UTF-32)
  style | Window style
  state | Window state
  settings | Additional settings for the underlying OpenGL context

Returns
  A new sfWindow object

## ◆ sfWindow_createVulkanSurface()

bool sfWindow_createVulkanSurface | ( | sfWindow * | window,
|  | const VkInstance * | instance,
|  | VkSurfaceKHR * | surface,
|  | const VkAllocationCallbacks * | allocator )

Create a Vulkan rendering surface.

Parameters

  window | Window object
  instance | Vulkan instance
  surface | Created surface
  allocator | Allocator to use

Returns
  True if surface creation was successful, false otherwise

## ◆ sfWindow_destroy()

void sfWindow_destroy | ( | const sfWindow * | window | ) |

Destroy a window.

Parameters

  window | Window to destroy

## ◆ sfWindow_display()

void sfWindow_display | ( | sfWindow * | window | ) |

Display on screen what has been rendered to the window so far.

This function is typically called after all OpenGL rendering has been done for the current frame, in order to show it on screen.

Parameters

  window | Window object

## ◆ sfWindow_getNativeHandle()

sfWindowHandle sfWindow_getNativeHandle | ( | const sfWindow * | window | ) |

Get the OS-specific handle of the window.

The type of the returned handle is sfWindowHandle, which is a typedef to the handle type defined by the OS. You shouldn't need to use this function, unless you have very specific stuff to implement that SFML doesn't support, or implement a temporary workaround until a bug is fixed.

Parameters

  window | Window object

Returns
  System handle of the window

## ◆ sfWindow_getPosition()

sfVector2i sfWindow_getPosition | ( | const sfWindow * | window | ) |

Get the position of a window.

Parameters

  window | Window object

Returns
  Position in pixels

## ◆ sfWindow_getSettings()

sfContextSettings sfWindow_getSettings | ( | const sfWindow * | window | ) |

Get the settings of the OpenGL context of a window.

Note that these settings may be different from what was passed to the sfWindow_create function, if one or more settings were not supported. In this case, SFML chose the closest match.

Parameters

  window | Window object

Returns
  Structure containing the OpenGL context settings

## ◆ sfWindow_getSize()

sfVector2u sfWindow_getSize | ( | const sfWindow * | window | ) |

Get the size of the rendering region of a window.

The size doesn't include the titlebar and borders of the window.

Parameters

  window | Window object

Returns
  Size in pixels

## ◆ sfWindow_hasFocus()

bool sfWindow_hasFocus | ( | const sfWindow * | window | ) |

Check whether the window has the input focus.

At any given time, only one window may have the input focus to receive input events such as keystrokes or most mouse events.

Returns
  True if window has focus, false otherwise

## ◆ sfWindow_isOpen()

bool sfWindow_isOpen | ( | const sfWindow * | window | ) |

Tell whether or not a window is opened.

This function returns whether or not the window exists. Note that a hidden window (sfWindow_setVisible(false)) will return true.

Parameters

  window | Window object

Returns
  true if the window is opened, false if it has been closed

## ◆ sfWindow_pollEvent()

bool sfWindow_pollEvent | ( | sfWindow * | window,
|  | sfEvent * | event )

Pop the event on top of event queue, if any, and return it.

This function is not blocking: if there's no pending event then it will return false and leave event unmodified. Note that more than one event may be present in the event queue, thus you should always call this function in a loop to make sure that you process every pending event.

Parameters

  window | Window object
  event | Event to fill, if any

Returns
  true if an event was returned, or false if the event queue was empty

## ◆ sfWindow_requestFocus()

void sfWindow_requestFocus | ( | sfWindow * | window | ) |

Request the current window to be made the active foreground window.

At any given time, only one window may have the input focus to receive input events such as keystrokes or mouse events. If a window requests focus, it only hints to the operating system, that it would like to be focused. The operating system is free to deny the request. This is not to be confused with sfWindow_setActive().

## ◆ sfWindow_setActive()

bool sfWindow_setActive | ( | sfWindow * | window,
|  | bool | active )

Activate or deactivate a window as the current target for OpenGL rendering.

A window is active only on the current thread, if you want to make it active on another thread you have to deactivate it on the previous thread first if it was active. Only one window can be active on a thread at a time, thus the window previously active (if any) automatically gets deactivated. This is not to be confused with sfWindow_requestFocus().

Parameters

  window | Window object
  active | true to activate, false to deactivate

Returns
  true if operation was successful, false otherwise

## ◆ sfWindow_setFramerateLimit()

void sfWindow_setFramerateLimit | ( | sfWindow * | window,
|  | unsigned int | limit )

Limit the framerate to a maximum fixed frequency.

If a limit is set, the window will use a small delay after each call to sfWindow_display to ensure that the current frame lasted long enough to match the framerate limit.

Parameters

  window | Window object
  limit | Framerate limit, in frames per seconds (use 0 to disable limit)

## ◆ sfWindow_setIcon()

void sfWindow_setIcon | ( | sfWindow * | window,
|  | sfVector2u | size,
|  | const uint8_t * | pixels )

Change a window's icon.

pixels must be an array of width x height pixels in 32-bits RGBA format.

Parameters

  window | Window object
  size | Icon's size, in pixels
  pixels | Pointer to the array of pixels in memory

## ◆ sfWindow_setJoystickThreshold()

void sfWindow_setJoystickThreshold | ( | sfWindow * | window,
|  | float | threshold )

Change the joystick threshold.

The joystick threshold is the value below which no JoystickMoved event will be generated.

Parameters

  window | Window object
  threshold | New threshold, in the range [0, 100]

## ◆ sfWindow_setKeyRepeatEnabled()

void sfWindow_setKeyRepeatEnabled | ( | sfWindow * | window,
|  | bool | enabled )

Enable or disable automatic key-repeat.

If key repeat is enabled, you will receive repeated KeyPress events while keeping a key pressed. If it is disabled, you will only get a single event when the key is pressed.

Key repeat is enabled by default.

Parameters

  window | Window object
  enabled | true to enable, false to disable

## ◆ sfWindow_setMouseCursor()

void sfWindow_setMouseCursor | ( | sfWindow * | window,
|  | const sfCursor * | cursor )

Set the displayed cursor to a native system cursor.

Upon window creation, the arrow cursor is used by default.

Warning
  The cursor must not be destroyed while in use by the window.
  Features related to Cursor are not supported on iOS and Android.

Parameters

  window | Window object
  cursor | Native system cursor type to display

See also
  sfCursor_createFromSystem
  sfCursor_createFromPixels

## ◆ sfWindow_setMouseCursorGrabbed()

void sfWindow_setMouseCursorGrabbed | ( | sfWindow * | window,
|  | bool | grabbed )

Grab or release the mouse cursor.

If set, grabs the mouse cursor inside this window's client area so it may no longer be moved outside its bounds. Note that grabbing is only active while the window has focus and calling this function for fullscreen windows won't have any effect (fullscreen windows always grab the cursor).

Parameters

  window | Window object
  grabbed | true to enable, false to disable

## ◆ sfWindow_setMouseCursorVisible()

void sfWindow_setMouseCursorVisible | ( | sfWindow * | window,
|  | bool | visible )

Show or hide the mouse cursor.

Parameters

  window | Window object
  visible | true to show, false to hide

## ◆ sfWindow_setPosition()

void sfWindow_setPosition | ( | sfWindow * | window,
|  | sfVector2i | position )

Change the position of a window on screen.

This function only works for top-level windows (i.e. it will be ignored for windows created from the handle of a child window/control).

Parameters

  window | Window object
  position | New position of the window, in pixels

## ◆ sfWindow_setSize()

void sfWindow_setSize | ( | sfWindow * | window,
|  | sfVector2u | size )

Change the size of the rendering region of a window.

Parameters

  window | Window object
  size | New size, in pixels

## ◆ sfWindow_setTitle()

void sfWindow_setTitle | ( | sfWindow * | window,
|  | const char * | title )

Change the title of a window.

Parameters

  window | Window object
  title | New title

## ◆ sfWindow_setUnicodeTitle()

void sfWindow_setUnicodeTitle | ( | sfWindow * | window,
|  | const sfChar32 * | title )

Change the title of a window (with a UTF-32 string)

Parameters

  window | Window object
  title | New title

## ◆ sfWindow_setVerticalSyncEnabled()

void sfWindow_setVerticalSyncEnabled | ( | sfWindow * | window,
|  | bool | enabled )

Enable or disable vertical synchronization.

Activating vertical synchronization will limit the number of frames displayed to the refresh rate of the monitor. This can avoid some visual artifacts, and limit the framerate to a good value (but not constant across different computers).

Parameters

  window | Window object
  enabled | true to enable v-sync, false to deactivate

## ◆ sfWindow_setVisible()

void sfWindow_setVisible | ( | sfWindow * | window,
|  | bool | visible )

Show or hide a window.

Parameters

  window | Window object
  visible | true to show the window, false to hide it

## ◆ sfWindow_waitEvent()

bool sfWindow_waitEvent | ( | sfWindow * | window,
|  | sfTime | timeout,
|  | sfEvent * | event )

Wait for an event and return it.

This function is blocking: if there's no pending event then it will wait until an event is received or until the provided timeout elapses. Only if an error or a timeout occurs the function returns `false`. This function is typically used when you have a thread that is dedicated to events handling: you want to make this thread sleep as long as no new event is received.

while (sfWindow_waitEvent(window, timeout, &event))
{
// process event...
}
sfWindow_waitEvent
bool sfWindow_waitEvent(sfWindow *window, sfTime timeout, sfEvent *event)
Wait for an event and return it.

Parameters

  window | Window object
  timeout | Maximum time to wait (`sfTime_Zero` for infinite)
  event | Event to fill, if any

Returns
  true if an event was returned, false if event queue was empty or function timed out