Input

Input

Input handles user interaction and events such as keypresses.

Functions

Process Events

ProcessEvents allows SplashKit to react to user interactions. This procedure checks the current keyboard and mouse states and should be called once within your game loop to check user interaction. Side Effects - Reads user interaction events - Updates keys down, text input, etc.

Signatures:

C++

void process_events()

C#

public static void Input.ProcessEvents();
public static void SplashKit.ProcessEvents();

Python

def process_events():

Pascal

procedure ProcessEvents()

---

Quit Requested

Checks to see if the user has asked for the application to quit. This value is updated by the Process Events routine. Also see window_close_requested.

Return Type: Boolean

Signatures:

C++

bool quit_requested()

C#

public static bool Input.QuitRequested();
public static bool SplashKit.QuitRequested();

Python

def quit_requested():

Pascal

function QuitRequested(): Boolean

---

Reset Quit

Cancels a quit request, ensuring the quit requested will return false.

Signatures:

C++

void reset_quit()

C#

public static void Input.ResetQuit();
public static void SplashKit.ResetQuit();

Python

def reset_quit():

Pascal

procedure ResetQuit()

---

Any Key Pressed

Checks to see if any key has been pressed since the last time Process Events was called.

Return Type: Boolean

Signatures:

C++

bool any_key_pressed()

C#

public static bool SplashKit.AnyKeyPressed();

Python

def any_key_pressed():

Pascal

function AnyKeyPressed(): Boolean

---

Deregister Callback On Key Down

Remove the registered callback from receiving events related to key down actions.

Parameters:

Name	Type	Description
callback	Key Callback	The function to from from key down events

Signatures:

C++

void deregister_callback_on_key_down(key_callback *callback)

C#

public static void SplashKit.DeregisterCallbackOnKeyDown(KeyCallback callback);

Python

def deregister_callback_on_key_down(callback):

Pascal

procedure DeregisterCallbackOnKeyDown(callback: KeyCallback)

---

Deregister Callback On Key Typed

Remove the registered callback from receiving events related to key typed actions.

Parameters:

Name	Type	Description
callback	Key Callback	The function to from from key typed events

Signatures:

C++

void deregister_callback_on_key_typed(key_callback *callback)

C#

public static void SplashKit.DeregisterCallbackOnKeyTyped(KeyCallback callback);

Python

def deregister_callback_on_key_typed(callback):

Pascal

procedure DeregisterCallbackOnKeyTyped(callback: KeyCallback)

---

Deregister Callback On Key Up

Remove the registered callback from receiving events related to key up actions.

Parameters:

Name	Type	Description
callback	Key Callback	The function to from from key up events

Signatures:

C++

void deregister_callback_on_key_up(key_callback *callback)

C#

public static void SplashKit.DeregisterCallbackOnKeyUp(KeyCallback callback);

Python

def deregister_callback_on_key_up(callback):

Pascal

procedure DeregisterCallbackOnKeyUp(callback: KeyCallback)

---

Key Down

Returns true when the key requested is being held down. This is updated as part of the Process Events call. Use the key codes from Key Code to specify the key to be checked.

Parameters:

Name	Type	Description
key	Key Code	The key to check if it is down

Return Type: Boolean

Signatures:

C++

bool key_down(key_code key)

C#

public static bool SplashKit.KeyDown(KeyCode key);

Python

def key_down(key):

Pascal

function KeyDown(key: KeyCode): Boolean

---

Key Name

The Key Name function returns a string name for a given Key Code. For example, COMMA_KEY returns the string ‘Comma’. This function could be used to display more meaningful key names for configuring game controls, etc.

Parameters:

Name	Type	Description
key	Key Code	The key to get the name of

Return Type: String

Signatures:

C++

string key_name(key_code key)

C#

public static string SplashKit.KeyName(KeyCode key);

Python

def key_name(key):

Pascal

function KeyName(key: KeyCode): String

---

Key Released

Returns true if the specified key was released since the last time Process Events was called. This occurs only once for the key that is released and will not return true again until the key is pressed down and released again.

Parameters:

Name	Type	Description
key	Key Code	The key to check if it was released

Return Type: Boolean

Signatures:

C++

bool key_released(key_code key)

C#

public static bool SplashKit.KeyReleased(KeyCode key);

Python

def key_released(key):

Pascal

function KeyReleased(key: KeyCode): Boolean

---

Key Typed

Returns true when the key requested is just pressed down. This is updated as part of the Process Events call. Use the key codes from Key Code to specify the key to be checked. this will only occur once for that key that is pressed and will not return true again until the key is released and presssed down again

Parameters:

Name	Type	Description
key	Key Code	The key to check if it was typed

Return Type: Boolean

Signatures:

C++

bool key_typed(key_code key)

C#

public static bool SplashKit.KeyTyped(KeyCode key);

Python

def key_typed(key):

Pascal

function KeyTyped(key: KeyCode): Boolean

---

Key Up

Returns false when the key requested is being held down. This is updated as part of the Process Events call. Use the key codes from Key Code to specify the key to be checked.

Parameters:

Name	Type	Description
key	Key Code	The key to check if it is up

Return Type: Boolean

Signatures:

C++

bool key_up(key_code key)

C#

public static bool SplashKit.KeyUp(KeyCode key);

Python

def key_up(key):

Pascal

function KeyUp(key: KeyCode): Boolean

---

Register Callback On Key Down

Register the passed in callback function to receive notification of key down calls. This will be called in response to Process Events, for each key that the user presses down.

Parameters:

Name	Type	Description
callback	Key Callback	The function to be called when a key is first pressed

Signatures:

C++

void register_callback_on_key_down(key_callback *callback)

C#

public static void SplashKit.RegisterCallbackOnKeyDown(KeyCallback callback);

Python

def register_callback_on_key_down(callback):

Pascal

procedure RegisterCallbackOnKeyDown(callback: KeyCallback)

---

Register Callback On Key Typed

Register the passed in callback function to receive notification of key typed calls. This will be called in response to Process Events, when the user initially presses a key down.

Parameters:

Name	Type	Description
callback	Key Callback	The function to be called when a key is typed

Signatures:

C++

void register_callback_on_key_typed(key_callback *callback)

C#

public static void SplashKit.RegisterCallbackOnKeyTyped(KeyCallback callback);

Python

def register_callback_on_key_typed(callback):

Pascal

procedure RegisterCallbackOnKeyTyped(callback: KeyCallback)

---

Register Callback On Key Up

Register the passed in callback function to receive notification of key up calls. This will be called in response to Process Events, for each key that the user releases.

Parameters:

Name	Type	Description
callback	Key Callback	The function to be called when a key is released

Signatures:

C++

void register_callback_on_key_up(key_callback *callback)

C#

public static void SplashKit.RegisterCallbackOnKeyUp(KeyCallback callback);

Python

def register_callback_on_key_up(callback):

Pascal

procedure RegisterCallbackOnKeyUp(callback: KeyCallback)

---

Hide Mouse

Tells the mouse cursor to hide (no longer visible) if it is currently showing. Use ShowMouse to make the mouse cursor visible again.

Signatures:

C++

void hide_mouse()

C#

public static void SplashKit.HideMouse();

Python

def hide_mouse():

Pascal

procedure HideMouse()

---

Mouse Clicked

Returns true if the specified button was clicked since the last time Process Events was called.

Parameters:

Name	Type	Description
button	Mouse Button	The mouse button to check

Return Type: Boolean

Signatures:

C++

bool mouse_clicked(mouse_button button)

C#

public static bool SplashKit.MouseClicked(MouseButton button);

Python

def mouse_clicked(button):

Pascal

function MouseClicked(button: MouseButton): Boolean

---

Mouse Down

Returns true if the specified button is currently pressed down.

Parameters:

Name	Type	Description
button	Mouse Button	The mouse button to check

Return Type: Boolean

Signatures:

C++

bool mouse_down(mouse_button button)

C#

public static bool SplashKit.MouseDown(MouseButton button);

Python

def mouse_down(button):

Pascal

function MouseDown(button: MouseButton): Boolean

---

Mouse Movement

Returns the amount of accumulated mouse movement, since the last time Process Events was called, as a Vector 2d.

Return Type: Vector 2d

Signatures:

C++

vector_2d mouse_movement()

C#

public static Vector2D SplashKit.MouseMovement();

Python

def mouse_movement():

Pascal

function MouseMovement(): Vector2D

---

Mouse Position

Returns the current window position of the mouse as a Point2D

Return Type: Point 2d

Signatures:

C++

point_2d mouse_position()

C#

public static Point2D SplashKit.MousePosition();

Python

def mouse_position():

Pascal

function MousePosition(): Point2D

---

Mouse Position Vector

Returns The current window position of the mouse as a Vector

Return Type: Vector 2d

Signatures:

C++

vector_2d mouse_position_vector()

C#

public static Vector2D SplashKit.MousePositionVector();

Python

def mouse_position_vector():

Pascal

function MousePositionVector(): Vector2D

---

Mouse Shown

Returns true if the mouse is currently visible, false if not.

Return Type: Boolean

Signatures:

C++

bool mouse_shown()

C#

public static bool SplashKit.MouseShown();

Python

def mouse_shown():

Pascal

function MouseShown(): Boolean

---

Mouse Up

Returns true if the specified button is currently up.

Parameters:

Name	Type	Description
button	Mouse Button	The mouse button to check

Return Type: Boolean

Signatures:

C++

bool mouse_up(mouse_button button)

C#

public static bool SplashKit.MouseUp(MouseButton button);

Python

def mouse_up(button):

Pascal

function MouseUp(button: MouseButton): Boolean

---

Mouse Wheel Scroll

Returns the amount the mouse wheel was scrolled since the last call to Process Events. The result is a vector containing the x and y amounts scrolled. Scroll left generates a negative x, scroll right a positive x. Scroll backward is negative y, scroll forward positive y. Note that on MacOS the directions may be inverted by OS settings.

Return Type: Vector 2d

Signatures:

C++

vector_2d mouse_wheel_scroll()

C#

public static Vector2D SplashKit.MouseWheelScroll();

Python

def mouse_wheel_scroll():

Pascal

function MouseWheelScroll(): Vector2D

---

Mouse X

Returns the current x value of the mouse’s position.

Return Type: Float

Signatures:

C++

float mouse_x()

C#

public static float SplashKit.MouseX();

Python

def mouse_x():

Pascal

function MouseX(): Single

---

Mouse Y

Returns the current y value of the mouse’s position.

Return Type: Float

Signatures:

C++

float mouse_y()

C#

public static float SplashKit.MouseY();

Python

def mouse_y():

Pascal

function MouseY(): Single

---

Move Mouse

Note

This function is overloaded. The following versions exist:

• Move Mouse (x: double, y: double)
• Move Mouse (point: point_2d)

Move Mouse

Moves the mouse cursor to the specified screen location.

Parameters:

Name	Type	Description
x	Double	The new x location of the mouse
y	Double	The new y location of the mouse

Signatures:

C++

void move_mouse(double x, double y)

C#

public static void SplashKit.MoveMouse(double x, double y);

Python

def move_mouse(x, y):

Pascal

procedure MoveMouse(x: Double; y: Double)

---

Move Mouse

Moves the mouse cursor to the specified screen location.

Parameters:

Name	Type	Description
point	Point 2d	The new location of the mouse

Signatures:

C++

void move_mouse(point_2d point)

C#

public static void SplashKit.MoveMouse(Point2D point);

Python

def move_mouse_to_point(point):

Pascal

procedure MoveMouse(point: Point2D)

---

Show Mouse

Note

This function is overloaded. The following versions exist:

• Show Mouse ()
• Show Mouse (show: bool)

Show Mouse

Tells the mouse cursor to be visible if it was previously hidden with by a HideMouse or SetMouseVisible(False) call.

Signatures:

C++

void show_mouse()

C#

public static void SplashKit.ShowMouse();

Python

def show_mouse():

Pascal

procedure ShowMouse()

---

Show Mouse

Used to explicitly set the mouse cursors visible state (if it is showing in the window or not) based on the show parameter.

Parameters:

Name	Type	Description
show	Boolean	When true the mouse is shown, when false it is hidden

Signatures:

C++

void show_mouse(bool show)

C#

public static void SplashKit.ShowMouse(bool show);

Python

def show_mouse_with_boolean(show):

Pascal

procedure ShowMouse(show: Boolean)

---

Draw Collected Text

Draw the text that the user is currently enterring on the current window.

Parameters:

Name	Type	Description
clr	Color	The color for the text
fnt	Font	The font to use
font_size	Integer	The size of the font
opts	Drawing Options	Any drawing options

Signatures:

C++

void draw_collected_text(color clr, font fnt, int font_size, const drawing_options &opts)

C#

public static void SplashKit.DrawCollectedText(Color clr, Font fnt, int fontSize, DrawingOptions opts);

Python

def draw_collected_text(clr, fnt, font_size, opts):

Pascal

procedure DrawCollectedText(clr: Color; fnt: Font; fontSize: Integer; const opts: DrawingOptions)

---

End Reading Text

Note

This function is overloaded. The following versions exist:

• End Reading Text ()
• End Reading Text (wind: window)

End Reading Text

Ends reading text in for the current window.

Signatures:

C++

void end_reading_text()

C#

public static void SplashKit.EndReadingText();

Python

def end_reading_text():

Pascal

procedure EndReadingText()

---

End Reading Text

Ends reading text for the passed in window.

Parameters:

Name	Type	Description
wind	Window	The window to end reading text

Signatures:

C++

void end_reading_text(window wind)

C#

public static void SplashKit.EndReadingText(Window wind);

Python

def end_reading_text_in_window(wind):

Pascal

procedure EndReadingText(wind: Window)

---

Reading Text

Note

This function is overloaded. The following versions exist:

• Reading Text ()
• Reading Text (wind: window)

Reading Text

Returns true when the current window is reading text.

Return Type: Boolean

Signatures:

C++

bool reading_text()

C#

public static bool SplashKit.ReadingText();

Python

def reading_text():

Pascal

function ReadingText(): Boolean

---

Reading Text

Returns true when the window is reading text.

Parameters:

Name	Type	Description
wind	Window	The window to check

Return Type: Boolean

Signatures:

C++

bool reading_text(window wind)

C#

public static bool SplashKit.ReadingText(Window wind);

Python

def reading_text_in_window(wind):

Pascal

function ReadingText(wind: Window): Boolean

---

Start Reading Text

Note

This function is overloaded. The following versions exist:

• Start Reading Text (rect: rectangle)
• Start Reading Text (rect: rectangle, initial_text: string)
• Start Reading Text (wind: window, rect: rectangle)
• Start Reading Text (wind: window, rect: rectangle, initial_text: string)

Start Reading Text

Start reading text in the current window within the bounds of the supplied rectangle.

Parameters:

Name	Type	Description
rect	Rectangle	The area where the text will be entered.

Signatures:

C++

void start_reading_text(rectangle rect)

C#

public static void SplashKit.StartReadingText(Rectangle rect);

Python

def start_reading_text(rect):

Pascal

procedure StartReadingText(rect: Rectangle)

---

Start Reading Text

Start reading text in the current window within the bounds of the supplied rectangle. The text will start with an initial value.

Parameters:

Name	Type	Description
rect	Rectangle	The area where the text will be entered.
initial_text	String	The initial text, which may be edited by the user.

Signatures:

C++

void start_reading_text(rectangle rect, string initial_text)

C#

public static void SplashKit.StartReadingText(Rectangle rect, string initialText);

Python

def start_reading_text_with_initial_text(rect, initial_text):

Pascal

procedure StartReadingText(rect: Rectangle; initialText: String)

---

Start Reading Text

Start reading text in the window within the bounds of the supplied rectangle.

Parameters:

Name	Type	Description
wind	Window	The window where the text will be entered
rect	Rectangle	The area where the text will be entered.

Signatures:

C++

void start_reading_text(window wind, rectangle rect)

C#

public static void SplashKit.StartReadingText(Window wind, Rectangle rect);

Python

def start_reading_text_in_window(wind, rect):

Pascal

procedure StartReadingText(wind: Window; rect: Rectangle)

---

Start Reading Text

Start reading text in the window within the bounds of the supplied rectangle. The text will start with an initial value.

Parameters:

Name	Type	Description
wind	Window	The window where the text will be entered
rect	Rectangle	The area where the text will be entered.
initial_text	String	The initial text, which may be edited by the user.

Signatures:

C++

void start_reading_text(window wind, rectangle rect, string initial_text)

C#

public static void SplashKit.StartReadingText(Window wind, Rectangle rect, string initialText);

Python

def start_reading_text_in_window_with_initial_text(wind, rect, initial_text):

Pascal

procedure StartReadingText(wind: Window; rect: Rectangle; initialText: String)

---

Text Entry Cancelled

Note

This function is overloaded. The following versions exist:

• Text Entry Cancelled ()
• Text Entry Cancelled (wind: window)

Text Entry Cancelled

Did the user press escape and cancel the enterring of text?

Return Type: Boolean

Signatures:

C++

bool text_entry_cancelled()

C#

public static bool SplashKit.TextEntryCancelled();

Python

def text_entry_cancelled():

Pascal

function TextEntryCancelled(): Boolean

---

Text Entry Cancelled

Did the user press escape and cancel the enterring of text?

Parameters:

Name	Type	Description
wind	Window	The window to check

Return Type: Boolean

Signatures:

C++

bool text_entry_cancelled(window wind)

C#

public static bool SplashKit.TextEntryCancelled(Window wind);

Python

def text_entry_cancelled_in_window(wind):

Pascal

function TextEntryCancelled(wind: Window): Boolean

---

Text Input

Note

This function is overloaded. The following versions exist:

• Text Input ()
• Text Input (wind: window)

Text Input

The text the user has currently enterred on the current window.

Return Type: String

Signatures:

C++

string text_input()

C#

public static string SplashKit.TextInput();

Python

def text_input():

Pascal

function TextInput(): String

---

Text Input

The text the user has currently enterred on the current window.

Parameters:

Name	Type	Description
wind	Window	The window to check

Return Type: String

Signatures:

C++

string text_input(window wind)

C#

public static string SplashKit.TextInput(Window wind);

Python

def text_input_in_window(wind):

Pascal

function TextInput(wind: Window): String

---

Types

Key Callback

The Key Callback is a function pointer used to register your code with SplashKit or keyboard related events. See Register Callback On Key Down, Register Callback On Key Up, and Register Callback On Key Typed

---

Key Code

Constant	Value	Description
UNKNOWN_KEY	0	The unknown key
BACKSPACE_KEY	8	The backspace key
TAB_KEY	9	The tab key
CLEAR_KEY	12	The clear key
RETURN_KEY	13	The return key
PAUSE_KEY	19	The pause key
ESCAPE_KEY	27	The escape key
SPACE_KEY	32	The space key
EXCLAIM_KEY	33	The exclaim key
DOUBLE_QUOTE_KEY	34	The double quote key
HASH_KEY	35	The hash key
DOLLAR_KEY	36	The dollar key
AMPERSAND_KEY	38	The ampersand key
QUOTE_KEY	39	The quote key
LEFT_PAREN_KEY	40	The left paren key
RIGHT_PAREN_KEY	41	The right paren key
ASTERISK_KEY	42	The asterisk key
PLUS_KEY	43	The plus key
COMMA_KEY	44	The comma key
MINUS_KEY	45	The minus key
PERIOD_KEY	46	The period key
SLASH_KEY	47	The slash key
NUM_0_KEY	48	The num 0 key
NUM_1_KEY	49	The num 1 key
NUM_2_KEY	50	The num 2 key
NUM_3_KEY	51	The num 3 key
NUM_4_KEY	52	The num 4 key
NUM_5_KEY	53	The num 5 key
NUM_6_KEY	54	The num 6 key
NUM_7_KEY	55	The num 7 key
NUM_8_KEY	56	The num 8 key
NUM_9_KEY	57	The num 9 key
COLON_KEY	58	The colon key
SEMI_COLON_KEY	59	The semi colon key
LESS_KEY	60	The less key
EQUALS_KEY	61	The equals key
GREATER_KEY	62	The greater key
QUESTION_KEY	63	The question key
AT_KEY	64	The at key
LEFT_BRACKET_KEY	91	The left bracket key
BACKSLASH_KEY	92	The backslash () key
RIGHT_BRACKET_KEY	93	The right bracket key
CARET_KEY	94	The caret (^) key
UNDERSCORE_KEY	95	The underscore (_) key
BACKQUOTE_KEY	96	The backquote (`) key
A_KEY	97	The a key
B_KEY	98	The b key
C_KEY	99	The c key
D_KEY	100	The d key
E_KEY	101	The e key
F_KEY	102	The f key
G_KEY	103	The g key
H_KEY	104	The h key
I_KEY	105	The i key
J_KEY	106	The j key
K_KEY	107	The k key
L_KEY	108	The l key
M_KEY	109	The m key
N_KEY	110	The n key
O_KEY	111	The o key
P_KEY	112	The p key
Q_KEY	113	The q key
R_KEY	114	The r key
S_KEY	115	The s key
T_KEY	116	The t key
U_KEY	117	The u key
V_KEY	118	The v key
W_KEY	119	The w key
X_KEY	120	The x key
Y_KEY	121	The y key
Z_KEY	122	The z key
DELETE_KEY	127	The delete key
KEYPAD_0	256	The keypad 0 key
KEYPAD_1	257	The keypad 1 key
KEYPAD_2	258	The keypad 2 key
KEYPAD_3	259	The keypad 3 key
KEYPAD_4	260	The keypad 4 key
KEYPAD_5	261	The keypad 5 key
KEYPAD_6	262	The keypad 6 key
KEYPAD_7	263	The keypad 7 key
KEYPAD_8	264	The keypad 8 key
KEYPAD_9	265	The keypad 9 key
KEYPAD_PERIOD	266	The keypad period key
KEYPAD_DIVIDE	267	The keypad divide key
KEYPAD_MULTIPLY	268	The keypad multiply key
KEYPAD_MINUS	269	The keypad minus key
KEYPAD_PLUS	270	The keypad plus key
KEYPAD_ENTER	271	The keypad enter key
KEYPAD_EQUALS	272	The keypad equals key
UP_KEY	273	The up key
DOWN_KEY	274	The down key
RIGHT_KEY	275	The right key
LEFT_KEY	276	The left key
INSERT_KEY	277	The insert key
HOME_KEY	278	The home key
END_KEY	279	The end key
PAGE_UP_KEY	280	The page up key
PAGE_DOWN_KEY	281	The page down key
F1_KEY	282	The f1 key
F2_KEY	283	The f2 key
F3_KEY	284	The f3 key
F4_KEY	285	The f4 key
F5_KEY	286	The f5 key
F6_KEY	287	The f6 key
F7_KEY	288	The f7 key
F8_KEY	289	The f8 key
F9_KEY	290	The f9 key
F10_KEY	291	The f10 key
F11_KEY	292	The f11 key
F12_KEY	293	The f12 key
F13_KEY	294	The f13 key
F14_KEY	295	The f14 key
F15_KEY	296	The f15 key
NUM_LOCK_KEY	300	The num lock key
CAPS_LOCK_KEY	301	The caps lock key
SCROLL_LOCK_KEY	302	The scroll lock key
RIGHT_SHIFT_KEY	303	The right shift key
LEFT_SHIFT_KEY	304	The left shift key
RIGHT_CTRL_KEY	305	The right ctrl key
LEFT_CTRL_KEY	306	The left ctrl key
RIGHT_ALT_KEY	307	The right alt or option key
LEFT_ALT_KEY	308	The left alt or option key
LEFT_SUPER_KEY	311	The left super (windows or command) key
RIGHT_SUPER_KEY	312	The right super (windows or command) key
MODE_KEY	313	The mode key
HELP_KEY	315	The help key
SYS_REQ_KEY	317	The sys req key
MENU_KEY	319	The menu key
POWER_KEY	320	The power key

These are the key codes you can use to check details of keyboard actions. See Key Down, Key Up, Key Typed, and Key Released functions. You can get a string representation of these keys using Key Name.

---

Mouse Button

Constant	Value	Description
NO_BUTTON		No mouse button
LEFT_BUTTON		The left mouse button
MIDDLE_BUTTON		The middle mouse button
RIGHT_BUTTON		The right mouse button
MOUSE_X1_BUTTON		The x1 mouse button
MOUSE_X2_BUTTON		The x2 mouse button

A mouse can have many different types of buttons. Most people know about the simple Left and Right buttons, but there is also a Middle button (sometimes part of a scoll wheel), and possible side buttons.

---