diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/api.texi | 476 |
1 files changed, 238 insertions, 238 deletions
diff --git a/doc/api.texi b/doc/api.texi index 4c6969d..f09cdfd 100644 --- a/doc/api.texi +++ b/doc/api.texi @@ -18,7 +18,7 @@ (use-modules (sdl2)) @end example -@deffn {Scheme Procedure} sdl-init [@var{subsystems}] +@deffn {Procedure} sdl-init [@var{subsystems}] Initialize the SDL library. This must be called before using any other SDL procedure. @@ -28,17 +28,17 @@ The possible flags are @code{timer}, @code{audio}, @code{video}, @code{haptic}, @code{game-controller}, and @code{events}. @end deffn -@deffn {Scheme Procedure} sdl-quit +@deffn {Procedure} sdl-quit Quit all activated SDL subsystems. This procedure should be called upon all exit conditions. @end deffn -@deffn {Scheme Procedure} sdl-version +@deffn {Procedure} sdl-version Return a three element list containing the major, minor, and patch version of the linked SDL library. @end deffn -@deffn {Scheme Procedure} sdl-ticks +@deffn {Procedure} sdl-ticks Return the number of milliseconds since the SDL library was initialized. @end deffn @@ -58,7 +58,7 @@ initialized. @node Windows @subsection Windows -@deffn {Scheme Procedure} make-window [#:title "Guile SDL2 Window"] @ +@deffn {Procedure} make-window [#:title "Guile SDL2 Window"] @ [#:position (#f #f)] @ [#:size (640 480)] @ [#:maximize? #f] @ @@ -78,80 +78,80 @@ centered on that axis, or @code{#f} to indicate that it does not matter where the window is located on that axis. @end deffn -@deffn {Scheme Procedure} close-window! window +@deffn {Procedure} close-window! window Close @var{window}. @end deffn -@deffn {Scheme Procedure} call-with-window window proc +@deffn {Procedure} call-with-window window proc Call @var{proc} with @var{window}, an SDL window object, and close it when @var{proc} returns or otherwise exits. @end deffn -@deffn {Scheme Procedure} window-title window +@deffn {Procedure} window-title window Return the title for @var{window}. @end deffn -@deffn {Scheme Procedure} window-size window +@deffn {Procedure} window-size window Return the dimensions of @var{window}. @end deffn -@deffn {Scheme Procedure} window-position window +@deffn {Procedure} window-position window Return the position of @var{window} on the display. @end deffn -@deffn {Scheme Procedure} window-id window +@deffn {Procedure} window-id window Return the numeric ID of @var{window}. @end deffn -@deffn {Scheme Procedure} id->window id +@deffn {Procedure} id->window id Return the window corresponding to @var{ID}, a positive integer, or @code{#f} if there is no such window. @end deffn -@deffn {Scheme Procedure} hide-window! window +@deffn {Procedure} hide-window! window Hide @var{window}. @end deffn -@deffn {Scheme Procedure} show-window! window +@deffn {Procedure} show-window! window Show @var{window} and focus on it. @end deffn -@deffn {Scheme Procedure} maximize-window! window +@deffn {Procedure} maximize-window! window Make @var{window} as large as possible. @end deffn -@deffn {Scheme Procedure} minimize-window! window +@deffn {Procedure} minimize-window! window Shrink @var{window} to an iconic representation. @end deffn -@deffn {Scheme Procedure} raise-window! window +@deffn {Procedure} raise-window! window Raise @var{window} above all other windows and set input focus. @end deffn -@deffn {Scheme Procedure} restore-window! window +@deffn {Procedure} restore-window! window Restore the size and position of a minimized or maximized @var{window}. @end deffn -@deffn {Scheme Procedure} set-window-border! window border? +@deffn {Procedure} set-window-border! window border? When @var{border?}, draw the usual border around @var{window}, otherwise remove the border. @end deffn -@deffn {Scheme Procedure} set-window-title! window title +@deffn {Procedure} set-window-title! window title Set the title of @var{window} to the string @var{title}. @end deffn -@deffn {Scheme Procedure} set-window-position! window position +@deffn {Procedure} set-window-position! window position Set the position of @var{window} to @var{position}, a two-element list of (x,y) coordinates measured in pixels. @end deffn -@deffn {Scheme Procedure} set-window-size! window size +@deffn {Procedure} set-window-size! window size Set the dimensions of @var{window} to @var{size}, a two-element list of (width,height) coordinates measured in pixels. @end deffn -@deffn {Scheme Procedure} set-window-fullscreen! window fullscreen? [#:desktop?] +@deffn {Procedure} set-window-fullscreen! window fullscreen? [#:desktop?] Toggle fullscreen mode on/off for @var{window}. If @var{fullscreen?}, fullscreen mode is activated, otherwise it is deactivated. If @var{fullscreen?} and @var{desktop?}, a special "fake" fullscreen mode @@ -161,24 +161,24 @@ is used that takes the size of the desktop. @node OpenGL @subsection OpenGL -@deffn {Scheme Procedure} make-gl-context window +@deffn {Procedure} make-gl-context window Create an OpenGL context for @var{window}. @end deffn -@deffn {Scheme Procedure} delete-gl-context! context +@deffn {Procedure} delete-gl-context! context Delete @var{context}, an OpenGL context object. @end deffn -@deffn {Scheme Procedure} call-with-gl-context window proc +@deffn {Procedure} call-with-gl-context window proc Call @var{proc} with a new OpenGL context created for @var{window}, and close the context when @var{proc} returns or otherwise exits. @end deffn -@deffn {Scheme Procedure} swap-gl-window window +@deffn {Procedure} swap-gl-window window Update @var{window} with OpenGL rendering. @end deffn -@deffn {Scheme Procedure} set-gl-attribute! attr value +@deffn {Procedure} set-gl-attribute! attr value Set the OpenGL attribute represented by the symbol @var{attr} to @var{value}. Possible values for @var{attr} are: @@ -209,7 +209,7 @@ Set the OpenGL attribute represented by the symbol @var{attr} to @end deffn -@deffn {Scheme Procedure} set-gl-swap-interval! interval +@deffn {Procedure} set-gl-swap-interval! interval Set the framebuffer swap interval for the current OpenGL context to the type indicated by the symbol @var{interval}. Possible values of @var{interval} are: @@ -243,11 +243,11 @@ drops. (use-modules (sdl2 input keyboard)) @end example -@deffn {Scheme Procedure} key-pressed? key +@deffn {Procedure} key-pressed? key Return @code{#t} if @var{key} is currently being pressed. @end deffn -@deffn {Scheme Procedure} key-released? key +@deffn {Procedure} key-released? key Return @code{#t} is @var{key} is not currently being pressed. @end deffn @@ -258,19 +258,19 @@ Return @code{#t} is @var{key} is not currently being pressed. (use-modules (sdl2 input mouse)) @end example -@deffn {Scheme Procedure} mouse-x +@deffn {Procedure} mouse-x Return the x coordinate of the mouse cursor. @end deffn -@deffn {Scheme Procedure} mouse-y +@deffn {Procedure} mouse-y Return the y coordinate of the mouse cursor. @end deffn -@deffn {Scheme Procedure} mouse-button-pressed? button +@deffn {Procedure} mouse-button-pressed? button Return @code{#t} if @var{button} is currently being pressed. @end deffn -@deffn {Scheme Procedure} mouse-button-released? button +@deffn {Procedure} mouse-button-released? button Return @code{#t} if @var{button} is not currently being pressed. @end deffn @@ -281,42 +281,42 @@ Return @code{#t} if @var{button} is not currently being pressed. (use-modules (sdl2 input joystick)) @end example -@deffn {Scheme Procedure} num-joysticks +@deffn {Procedure} num-joysticks Return the current number of connected joystick devices. @end deffn -@deffn {Scheme Procedure} open-joystick device-index +@deffn {Procedure} open-joystick device-index Return a joystick object for the physical joystick device associated with @var{device-index}. @end deffn -@deffn {Scheme Procedure} close-joystick joystick +@deffn {Procedure} close-joystick joystick Close @var{joystick}. @end deffn -@deffn {Scheme Procedure} joystick-instance-id joystick +@deffn {Procedure} joystick-instance-id joystick Return the instance id of @var{joystick}. @end deffn -@deffn {Scheme Procedure} joystick-power-level joystick +@deffn {Procedure} joystick-power-level joystick Return the symbolic battery power level for @var{joystick}, either @code{unknown}, @code{empty}, @code{low}, @code{medium}, @code{full}, or @code{wired}. @end deffn -@deffn {Scheme Procedure} joystick-num-axes joystick +@deffn {Procedure} joystick-num-axes joystick Return the number of axes for @var{joystick}. @end deffn -@deffn {Scheme Procedure} joystick-num-balls joystick +@deffn {Procedure} joystick-num-balls joystick Return the number of balls for @var{joystick}. @end deffn -@deffn {Scheme Procedure} joystick-num-buttons joystick +@deffn {Procedure} joystick-num-buttons joystick Return the number of buttons for @var{joystick}. @end deffn -@deffn {Scheme Procedure} joystick-num-hats joystick +@deffn {Procedure} joystick-num-hats joystick Return the number of hats for @var{joystick}. @end deffn @@ -327,7 +327,7 @@ Return the number of hats for @var{joystick}. (use-modules (sdl2 input game-controller)) @end example -@deffn {Scheme Procedure} load-game-controller-mappings! file +@deffn {Procedure} load-game-controller-mappings! file Load game controller mapping from @var{file} and return the number of mappings added this way. @@ -335,32 +335,32 @@ See @url{https://raw.github.com/gabomdq/SDL_GameControllerDB/master/gamecontroll for a community maintained controller mapping file. @end deffn -@deffn {Scheme Procedure} open-game-controller joystick-index +@deffn {Procedure} open-game-controller joystick-index Return a game controller object for the physical joystick device associated with the @var{joystick-index}. @end deffn -@deffn {Scheme Procedure} close-game-controller controller +@deffn {Procedure} close-game-controller controller Close @var{controller}. @end deffn -@deffn {Scheme Procedure} game-controller? controller +@deffn {Procedure} game-controller? controller Close @var{controller}. @end deffn -@deffn {Scheme Procedure} game-controller-attached? controller +@deffn {Procedure} game-controller-attached? controller Return @code{#t} if @var{controller} is currently in use. @end deffn -@deffn {Scheme Procedure} game-controller-joystick controller +@deffn {Procedure} game-controller-joystick controller Return the underlying joystick object associated with @var{controller}. @end deffn -@deffn {Scheme Procedure} game-controller-name controller +@deffn {Procedure} game-controller-name controller Return the human readable name for @var{controller}. @end deffn -@deffn {Scheme Procedure} game-controller-axis controller axis +@deffn {Procedure} game-controller-axis controller axis Return a number in the range [-32768, 32767] representing the current state of @var{axis} on @var{controller}. @@ -375,7 +375,7 @@ current state of @var{axis} on @var{controller}. @end itemize @end deffn -@deffn {Scheme Procedure} game-controller-button-pressed? controller button +@deffn {Procedure} game-controller-button-pressed? controller button Return @code{#t} if @var{button} is pressed on @var{controller}. @var{button} may be one of the following symbols: @@ -398,7 +398,7 @@ Return @code{#t} if @var{button} is pressed on @var{controller}. @end itemize @end deffn -@deffn {Scheme Procedure} game-controller-index? joystick-index +@deffn {Procedure} game-controller-index? joystick-index Return @code{#t} if @var{joystick-index} is a valid game controller index. @end deffn @@ -409,92 +409,92 @@ Return @code{#t} if @var{joystick-index} is a valid game controller index. (use-modules (sdl2 events)) @end example -@deffn {Scheme Procedure} make-quit-event timestamp +@deffn {Procedure} make-quit-event timestamp @end deffn -@deffn {Scheme Procedure} quit-event? e +@deffn {Procedure} quit-event? e Return @code{#t} if @var{e} is a quit event. @end deffn -@deffn {Scheme Procedure} quit-event-timestamp e +@deffn {Procedure} quit-event-timestamp e @end deffn -@deffn {Scheme Procedure} make-window-event timestamp window-id type vector +@deffn {Procedure} make-window-event timestamp window-id type vector @end deffn -@deffn {Scheme Procedure} window-event? e +@deffn {Procedure} window-event? e Return @code{#t} if @var{e} is a window event. @end deffn -@deffn {Scheme Procedure} window-shown-event? e +@deffn {Procedure} window-shown-event? e Return @code{#t} if @var{e} is a window shown event. @end deffn -@deffn {Scheme Procedure} window-hidden-event? e +@deffn {Procedure} window-hidden-event? e Return @code{#t} if @var{e} is a window hidden event. @end deffn -@deffn {Scheme Procedure} window-exposed-event? e +@deffn {Procedure} window-exposed-event? e Return @code{#t} if @var{e} is a window exposed event. @end deffn -@deffn {Scheme Procedure} window-moved-event? e +@deffn {Procedure} window-moved-event? e Return @code{#t} if @var{e} is a window moved event. @end deffn -@deffn {Scheme Procedure} window-resized-event? e +@deffn {Procedure} window-resized-event? e Return @code{#t} if @var{e} is a window resized event. @end deffn -@deffn {Scheme Procedure} window-size-changed-event? e +@deffn {Procedure} window-size-changed-event? e Return @code{#t} if @var{e} is a window size changed event. @end deffn -@deffn {Scheme Procedure} window-minimized-event? e +@deffn {Procedure} window-minimized-event? e Return @code{#t} if @var{e} is a window minimized event. @end deffn -@deffn {Scheme Procedure} window-maximized-event? e +@deffn {Procedure} window-maximized-event? e Return @code{#t} if @var{e} is a window maximized event. @end deffn -@deffn {Scheme Procedure} window-restored-event? e +@deffn {Procedure} window-restored-event? e Return @code{#t} if @var{e} is a window restored event. @end deffn -@deffn {Scheme Procedure} window-enter-event? e +@deffn {Procedure} window-enter-event? e Return @code{#t} if @var{e} is a window enter event. @end deffn -@deffn {Scheme Procedure} window-leave-event? e +@deffn {Procedure} window-leave-event? e Return @code{#t} if @var{e} is a window leave event. @end deffn -@deffn {Scheme Procedure} window-focus-gained-event? e +@deffn {Procedure} window-focus-gained-event? e Return @code{#t} if @var{e} is a window focus gained event. @end deffn -@deffn {Scheme Procedure} window-focus-lost-event? e +@deffn {Procedure} window-focus-lost-event? e Return @code{#t} if @var{e} is a window focus lost event. @end deffn -@deffn {Scheme Procedure} window-closed-event? e +@deffn {Procedure} window-closed-event? e Return @code{#t} if @var{e} is a window closed event. @end deffn -@deffn {Scheme Procedure} window-event-timestamp e +@deffn {Procedure} window-event-timestamp e @end deffn -@deffn {Scheme Procedure} window-event-window-id e +@deffn {Procedure} window-event-window-id e @end deffn -@deffn {Scheme Procedure} window-event-type e +@deffn {Procedure} window-event-type e @end deffn -@deffn {Scheme Procedure} window-event-vector e +@deffn {Procedure} window-event-vector e @end deffn -@deffn {Scheme Procedure} make-keyboard-event timestamp @ +@deffn {Procedure} make-keyboard-event timestamp @ window-id @ pressed? @ repeat? @ @@ -503,56 +503,56 @@ Return @code{#t} if @var{e} is a window closed event. modifiers @end deffn -@deffn {Scheme Procedure} keyboard-event? e +@deffn {Procedure} keyboard-event? e Return @code{#t} if @var{e} is a keyboard event. @end deffn -@deffn {Scheme Procedure} keyboard-down-event? e +@deffn {Procedure} keyboard-down-event? e Return @code{#t} if @var{e} is a key press event. @end deffn -@deffn {Scheme Procedure} keyboard-up-event? e +@deffn {Procedure} keyboard-up-event? e Return @code{#t} if @var{e} is a key release event. @end deffn -@deffn {Scheme Procedure} keyboard-event-timestamp e +@deffn {Procedure} keyboard-event-timestamp e @end deffn -@deffn {Scheme Procedure} keyboard-event-window-id e +@deffn {Procedure} keyboard-event-window-id e @end deffn -@deffn {Scheme Procedure} keyboard-event-pressed? e +@deffn {Procedure} keyboard-event-pressed? e @end deffn -@deffn {Scheme Procedure} keyboard-event-repeat? e +@deffn {Procedure} keyboard-event-repeat? e @end deffn -@deffn {Scheme Procedure} keyboard-event-key e +@deffn {Procedure} keyboard-event-key e @end deffn -@deffn {Scheme Procedure} keyboard-event-scancode e +@deffn {Procedure} keyboard-event-scancode e @end deffn -@deffn {Scheme Procedure} keyboard-event-modifiers e +@deffn {Procedure} keyboard-event-modifiers e @end deffn -@deffn {Scheme Procedure} make-text-input-event timestamp window-id text +@deffn {Procedure} make-text-input-event timestamp window-id text @end deffn -@deffn {Scheme Procedure} text-input-event? e +@deffn {Procedure} text-input-event? e Return @code{#t} if @var{e} is a text input event. @end deffn -@deffn {Scheme Procedure} text-input-event-timestamp e +@deffn {Procedure} text-input-event-timestamp e @end deffn -@deffn {Scheme Procedure} text-input-event-window-id e +@deffn {Procedure} text-input-event-window-id e @end deffn -@deffn {Scheme Procedure} text-input-event-text e +@deffn {Procedure} text-input-event-text e @end deffn -@deffn {Scheme Procedure} make-mouse-button-event timestamp @ +@deffn {Procedure} make-mouse-button-event timestamp @ window-id @ which @ button @ @@ -562,43 +562,43 @@ Return @code{#t} if @var{e} is a text input event. y @end deffn -@deffn {Scheme Procedure} mouse-button-event? e +@deffn {Procedure} mouse-button-event? e Return @code{#t} if @var{e} is a mouse button event. @end deffn -@deffn {Scheme Procedure} mouse-button-down-event? e +@deffn {Procedure} mouse-button-down-event? e Return @code{#t} if @var{e} is a mouse button down event. @end deffn -@deffn {Scheme Procedure} mouse-button-up-event? e +@deffn {Procedure} mouse-button-up-event? e Return @code{#t} if @var{e} is a mouse button up event. @end deffn -@deffn {Scheme Procedure} mouse-button-event-timestamp e +@deffn {Procedure} mouse-button-event-timestamp e @end deffn -@deffn {Scheme Procedure} mouse-button-event-window-id e +@deffn {Procedure} mouse-button-event-window-id e @end deffn -@deffn {Scheme Procedure} mouse-button-event-which e +@deffn {Procedure} mouse-button-event-which e @end deffn -@deffn {Scheme Procedure} mouse-button-event-button e +@deffn {Procedure} mouse-button-event-button e @end deffn -@deffn {Scheme Procedure} mouse-button-event-pressed? e +@deffn {Procedure} mouse-button-event-pressed? e @end deffn -@deffn {Scheme Procedure} mouse-button-event-clicks e +@deffn {Procedure} mouse-button-event-clicks e @end deffn -@deffn {Scheme Procedure} mouse-button-event-x e +@deffn {Procedure} mouse-button-event-x e @end deffn -@deffn {Scheme Procedure} mouse-button-event-y e +@deffn {Procedure} mouse-button-event-y e @end deffn -@deffn {Scheme Procedure} make-mouse-motion-event timestamp @ +@deffn {Procedure} make-mouse-motion-event timestamp @ window-id @ which @ buttons @ @@ -608,193 +608,193 @@ Return @code{#t} if @var{e} is a mouse button up event. y-rel @end deffn -@deffn {Scheme Procedure} mouse-motion-event? e +@deffn {Procedure} mouse-motion-event? e Return @code{#t} if @var{e} is a mouse motion event. @end deffn -@deffn {Scheme Procedure} mouse-motion-event-timestamp e +@deffn {Procedure} mouse-motion-event-timestamp e @end deffn -@deffn {Scheme Procedure} mouse-motion-event-window-id e +@deffn {Procedure} mouse-motion-event-window-id e @end deffn -@deffn {Scheme Procedure} mouse-motion-event-which e +@deffn {Procedure} mouse-motion-event-which e @end deffn -@deffn {Scheme Procedure} mouse-motion-event-buttons e +@deffn {Procedure} mouse-motion-event-buttons e @end deffn -@deffn {Scheme Procedure} mouse-motion-event-x e +@deffn {Procedure} mouse-motion-event-x e @end deffn -@deffn {Scheme Procedure} mouse-motion-event-y e +@deffn {Procedure} mouse-motion-event-y e @end deffn -@deffn {Scheme Procedure} mouse-motion-event-x-rel e +@deffn {Procedure} mouse-motion-event-x-rel e @end deffn -@deffn {Scheme Procedure} mouse-motion-event-y-rel e +@deffn {Procedure} mouse-motion-event-y-rel e @end deffn -@deffn {Scheme Procedure} make-joystick-axis-event timestamp which axis value +@deffn {Procedure} make-joystick-axis-event timestamp which axis value @end deffn -@deffn {Scheme Procedure} joystick-axis-event? e +@deffn {Procedure} joystick-axis-event? e Return @code{#t} if @var{e} is a joystick axis event. @end deffn -@deffn {Scheme Procedure} joystick-axis-event-timestamp e +@deffn {Procedure} joystick-axis-event-timestamp e @end deffn -@deffn {Scheme Procedure} joystick-axis-event-which e +@deffn {Procedure} joystick-axis-event-which e @end deffn -@deffn {Scheme Procedure} joystick-axis-event-button e +@deffn {Procedure} joystick-axis-event-button e @end deffn -@deffn {Scheme Procedure} joystick-axis-event-pressed? e +@deffn {Procedure} joystick-axis-event-pressed? e @end deffn -@deffn {Scheme Procedure} make-joystick-ball-event timestamp @ +@deffn {Procedure} make-joystick-ball-event timestamp @ which @ ball @ x-rel @ y-rel @end deffn -@deffn {Scheme Procedure} joystick-ball-event? e +@deffn {Procedure} joystick-ball-event? e Return @code{#t} if @var{e} is a joystick ball event. @end deffn -@deffn {Scheme Procedure} joystick-ball-event-timestamp e +@deffn {Procedure} joystick-ball-event-timestamp e @end deffn -@deffn {Scheme Procedure} joystick-ball-event-which e +@deffn {Procedure} joystick-ball-event-which e @end deffn -@deffn {Scheme Procedure} joystick-ball-event-ball e +@deffn {Procedure} joystick-ball-event-ball e @end deffn -@deffn {Scheme Procedure} joystick-ball-event-x-rel e +@deffn {Procedure} joystick-ball-event-x-rel e @end deffn -@deffn {Scheme Procedure} joystick-ball-event-y-rel e +@deffn {Procedure} joystick-ball-event-y-rel e @end deffn -@deffn {Scheme Procedure} make-joystick-hat-event timestamp which hat value +@deffn {Procedure} make-joystick-hat-event timestamp which hat value @end deffn -@deffn {Scheme Procedure} joystick-hat-event? e +@deffn {Procedure} joystick-hat-event? e Return @code{#t} if @var{e} is a joystick hat event. @end deffn -@deffn {Scheme Procedure} joystick-hat-event-timestamp e +@deffn {Procedure} joystick-hat-event-timestamp e @end deffn -@deffn {Scheme Procedure} joystick-hat-event-which e +@deffn {Procedure} joystick-hat-event-which e @end deffn -@deffn {Scheme Procedure} joystick-hat-event-hat e +@deffn {Procedure} joystick-hat-event-hat e @end deffn -@deffn {Scheme Procedure} joystick-hat-event-value e +@deffn {Procedure} joystick-hat-event-value e @end deffn -@deffn {Scheme Procedure} make-joystick-device-event timestamp which action +@deffn {Procedure} make-joystick-device-event timestamp which action @end deffn -@deffn {Scheme Procedure} joystick-device-event? e +@deffn {Procedure} joystick-device-event? e Return @code{#t} if @var{e} is a joystick device event. @end deffn -@deffn {Scheme Procedure} joystick-device-event-timestamp e +@deffn {Procedure} joystick-device-event-timestamp e @end deffn -@deffn {Scheme Procedure} joystick-device-event-which e +@deffn {Procedure} joystick-device-event-which e @end deffn -@deffn {Scheme Procedure} joystick-device-event-action e +@deffn {Procedure} joystick-device-event-action e @end deffn -@deffn {Scheme Procedure} make-controller-axis-event timestamp which axis value +@deffn {Procedure} make-controller-axis-event timestamp which axis value @end deffn -@deffn {Scheme Procedure} controller-axis-event? e +@deffn {Procedure} controller-axis-event? e Return @code{#t} if @var{e} is a game controller axis event. @end deffn -@deffn {Scheme Procedure} controller-axis-event-timestamp e +@deffn {Procedure} controller-axis-event-timestamp e @end deffn -@deffn {Scheme Procedure} controller-axis-event-which e +@deffn {Procedure} controller-axis-event-which e @end deffn -@deffn {Scheme Procedure} controller-axis-event-axis e +@deffn {Procedure} controller-axis-event-axis e @end deffn -@deffn {Scheme Procedure} controller-axis-event-value e +@deffn {Procedure} controller-axis-event-value e @end deffn -@deffn {Scheme Procedure} make-controller-button-event timestamp @ +@deffn {Procedure} make-controller-button-event timestamp @ which @ button @ pressed? @end deffn -@deffn {Scheme Procedure} controller-button-event? e +@deffn {Procedure} controller-button-event? e Return @code{#t} if @var{event} is a game controller button event. @end deffn -@deffn {Scheme Procedure} controller-button-down-event? e +@deffn {Procedure} controller-button-down-event? e @end deffn -@deffn {Scheme Procedure} controller-button-up-event? e +@deffn {Procedure} controller-button-up-event? e @end deffn -@deffn {Scheme Procedure} controller-button-event-timestamp e +@deffn {Procedure} controller-button-event-timestamp e @end deffn -@deffn {Scheme Procedure} controller-button-event-which e +@deffn {Procedure} controller-button-event-which e @end deffn -@deffn {Scheme Procedure} controller-button-event-button e +@deffn {Procedure} controller-button-event-button e @end deffn -@deffn {Scheme Procedure} controller-button-event-pressed? e +@deffn {Procedure} controller-button-event-pressed? e @end deffn -@deffn {Scheme Procedure} make-controller-device-event timestamp which action +@deffn {Procedure} make-controller-device-event timestamp which action @end deffn -@deffn {Scheme Procedure} controller-device-event? e +@deffn {Procedure} controller-device-event? e Return @code{#t} if @var{event} is a game controller device event. @end deffn -@deffn {Scheme Procedure} controller-added-event? e +@deffn {Procedure} controller-added-event? e Return @code{#t} if @var{event} is a game controller device event with the 'added' action. @end deffn -@deffn {Scheme Procedure} controller-removed-event? e +@deffn {Procedure} controller-removed-event? e Return @code{#t} if @var{event} is a game controller device event with the 'removed' action. @end deffn -@deffn {Scheme Procedure} controller-remapped-event? e +@deffn {Procedure} controller-remapped-event? e Return @code{#t} if @var{event} is a game controller device event with the 'remapped' action. @end deffn -@deffn {Scheme Procedure} controller-device-event-timestamp e +@deffn {Procedure} controller-device-event-timestamp e @end deffn -@deffn {Scheme Procedure} controller-device-event-which e +@deffn {Procedure} controller-device-event-which e @end deffn -@deffn {Scheme Procedure} controller-device-event-action e +@deffn {Procedure} controller-device-event-action e @end deffn -@deffn {Scheme Procedure} poll-event +@deffn {Procedure} poll-event @end deffn @node Rects @@ -832,119 +832,119 @@ Return the height of @var{rect}. (use-modules (sdl2 surface)) @end example -@deffn {Scheme Procedure} color? c +@deffn {Procedure} color? c Return @code{#t} if @var{c} is a color. @end deffn -@deffn {Scheme Procedure} color-r c +@deffn {Procedure} color-r c @end deffn -@deffn {Scheme Procedure} color-g c +@deffn {Procedure} color-g c @end deffn -@deffn {Scheme Procedure} color-b c +@deffn {Procedure} color-b c @end deffn -@deffn {Scheme Procedure} color-a c +@deffn {Procedure} color-a c @end deffn -@deffn {Scheme Procedure} palette? p +@deffn {Procedure} palette? p Return @code{#t} if @var{p} is a palette. @end deffn -@deffn {Scheme Procedure} palette-length palette +@deffn {Procedure} palette-length palette Return the number of colors in @var{palette}. @end deffn -@deffn {Scheme Procedure} palette-colors palette +@deffn {Procedure} palette-colors palette Return the colors in @var{palette}. @end deffn -@deffn {Scheme Procedure} pixel-format? pf +@deffn {Procedure} pixel-format? pf Return @code{#t} if @var{pf} is a pixel format. @end deffn -@deffn {Scheme Procedure} pixel-format-name pf +@deffn {Procedure} pixel-format-name pf Return the symbolic name of the pixel format @var{pf}. @end deffn -@deffn {Scheme Procedure} pixel-format-palette pf +@deffn {Procedure} pixel-format-palette pf Return the palette for the pixel format @var{pf}. @end deffn -@deffn {Scheme Procedure} pixel-format-bits-per-pixel pf +@deffn {Procedure} pixel-format-bits-per-pixel pf Return the number of bits per pixel for the pixel format @var{pf}. @end deffn -@deffn {Scheme Procedure} pixel-format-bytes-per-pixel pf +@deffn {Procedure} pixel-format-bytes-per-pixel pf Return the number of bytes per pixel for the pixel format @var{pf}. @end deffn -@deffn {Scheme Procedure} pixel-format-red-mask pf +@deffn {Procedure} pixel-format-red-mask pf Return the bitmask for the red component of a pixel in the pixel format @var{pf}. @end deffn -@deffn {Scheme Procedure} pixel-format-green-mask pf +@deffn {Procedure} pixel-format-green-mask pf Return the bitmask for the green component of a pixel in the pixel format @var{pf}. @end deffn -@deffn {Scheme Procedure} pixel-format-blue-mask pf +@deffn {Procedure} pixel-format-blue-mask pf Return the bitmask for the blue component of a pixel in the pixel format @var{pf}. @end deffn -@deffn {Scheme Procedure} pixel-format-alpha-mask pf +@deffn {Procedure} pixel-format-alpha-mask pf Return the bitmask for the alpha component of a pixel in the pixel format @var{pf}. @end deffn -@deffn {Scheme Procedure} make-rgb-surface width height depth +@deffn {Procedure} make-rgb-surface width height depth Create a new SDL surface with the dimensions @var{width} and @var{height} and @var{depth} bits per pixel. @end deffn -@deffn {Scheme Procedure} bytevector->surface bv width height depth pitch +@deffn {Procedure} bytevector->surface bv width height depth pitch Convert @var{bv}, a bytevector of pixel data with dimensions @var{width}x@var{height}, to an SDL surface. Each pixel is @var{depth} bits in size, and each row of pixels is @var{pitch} bytes in size. @end deffn -@deffn {Scheme Procedure} delete-surface! surface +@deffn {Procedure} delete-surface! surface Free the memory used by @var{surface}. @end deffn -@deffn {Scheme Procedure} call-with-surface surface proc +@deffn {Procedure} call-with-surface surface proc Call @var{proc}, passing it @var{surface} and deleting @var{surface} upon exit of @var{proc}. @end deffn -@deffn {Scheme Procedure} load-bmp file +@deffn {Procedure} load-bmp file Create a new surface from the bitmap data in @var{file}. @end deffn -@deffn {Scheme Procedure} surface-width surface +@deffn {Procedure} surface-width surface Return the width of @var{surface} in pixels. @end deffn -@deffn {Scheme Procedure} surface-height surface +@deffn {Procedure} surface-height surface Return the height of @var{surface} in pixels. @end deffn -@deffn {Scheme Procedure} surface-pitch surface +@deffn {Procedure} surface-pitch surface Return the length of a row of pixels in @var{surface} in bytes. @end deffn -@deffn {Scheme Procedure} surface-pixels surface +@deffn {Procedure} surface-pixels surface Return a bytevector containing the raw pixel data in @var{surface}. @end deffn -@deffn {Scheme Procedure} surface-pixel-format surface +@deffn {Procedure} surface-pixel-format surface Return the pixel format for @var{surface}. @end deffn -@deffn {Scheme Procedure} convert-surface-format surface format +@deffn {Procedure} convert-surface-format surface format Convert the pixels in @var{surface} to @var{format}, a symbol representing a specific pixel format, and return a new surface object. @@ -1001,7 +1001,7 @@ Blit the rectangle @var{src-rect} from the surface @var{src} to (use-modules (sdl2 render)) @end example -@deffn {Scheme Procedure} make-renderer window @ +@deffn {Procedure} make-renderer window @ [#:optional flags='(accelerated vsync)] Return a new renderer for @var{window} created with the options specified in @var{flags}, a list of symbols. The valid symbols that may appear in @@ -1015,35 +1015,35 @@ in @var{flags}, a list of symbols. The valid symbols that may appear in @end itemize @end deffn -@deffn {Scheme Procedure} renderer? r +@deffn {Procedure} renderer? r Return @code{#t} if @var{r} is a renderer. @end deffn -@deffn {Scheme Procedure} delete-renderer! renderer +@deffn {Procedure} delete-renderer! renderer Delete the rendering context @var{renderer}. @end deffn -@deffn {Scheme Procedure} call-with-renderer renderer proc +@deffn {Procedure} call-with-renderer renderer proc Call @var{proc}, passing it @var{renderer} and closing @var{renderer} upon exit of @var{proc}. @end deffn -@deffn {Scheme Procedure} clear-renderer renderer +@deffn {Procedure} clear-renderer renderer Clear the rendering target @var{renderer} with the current drawing color. @end deffn -@deffn {Scheme Procedure} present-renderer renderer +@deffn {Procedure} present-renderer renderer Display @var{renderer}. @end deffn -@deffn {Scheme Procedure} render-copy renderer @ +@deffn {Procedure} render-copy renderer @ texture @ [#:srcrect] [#:dstrect] Copy @var{texture} to the rendering target of @var{renderer}. @end deffn -@deffn {Scheme Procedure} surface->texture renderer surface +@deffn {Procedure} surface->texture renderer surface Convert @var{surface} to a texture suitable for @var{renderer}. @end deffn @@ -1054,19 +1054,19 @@ Convert @var{surface} to a texture suitable for @var{renderer}. (use-modules (sdl2 image)) @end example -@deffn {Scheme Procedure} image-init +@deffn {Procedure} image-init Initialize dynamically loaded image libraries. @end deffn -@deffn {Scheme Procedure} image-quit +@deffn {Procedure} image-quit Clean up dynamically loaded image libraries. @end deffn -@deffn {Scheme Procedure} load-image file +@deffn {Procedure} load-image file Load the image in @var{file} and return an SDL surface. @end deffn -@deffn {Scheme Procedure} save-png surface file +@deffn {Procedure} save-png surface file Save @var{surface} to @var{file} as a PNG formatted image. @end deffn @@ -1086,7 +1086,7 @@ Save @var{surface} to @var{file} as a PNG formatted image. @defvr {Scheme Variable} %default-chunk-size @end defvr -@deffn {Scheme Procedure} mixer-init [#:optional formats='(flac mod modplug mp3 ogg fluidsynth)] +@deffn {Procedure} mixer-init [#:optional formats='(flac mod modplug mp3 ogg fluidsynth)] Initialize mixer library with support for @var{formats}, a list of symbols representing audio file formats. Possible formats are: @@ -1100,11 +1100,11 @@ symbols representing audio file formats. Possible formats are: @end itemize @end deffn -@deffn {Scheme Procedure} mixer-quit +@deffn {Procedure} mixer-quit Shutdown mixer library. @end deffn -@deffn {Scheme Procedure} open-audio [#:frequency=%default-frequency] @ +@deffn {Procedure} open-audio [#:frequency=%default-frequency] @ [#:format=%default-format] @ [#:stereo?=#t] @ [#:chunk-size=%default-chunk-size] @@ -1132,28 +1132,28 @@ sample format. Possible values are: @end itemize @end deffn -@deffn {Scheme Procedure} close-audio +@deffn {Procedure} close-audio Shut down the mixer API. @end deffn -@deffn {Scheme Procedure} chunk? c +@deffn {Procedure} chunk? c Return @code{#t} if @var{c} is a chunk. @end deffn -@deffn {Scheme Procedure} load-chunk file +@deffn {Procedure} load-chunk file Load the audio data in @var{file} and return an audio chunk. @end deffn -@deffn {Scheme Procedure} delete-chunk! chunk +@deffn {Procedure} delete-chunk! chunk Free the memory used for @var{chunk}. @end deffn -@deffn {Scheme Procedure} set-chunk-volume! chunk volume +@deffn {Procedure} set-chunk-volume! chunk volume Set the loudness of @var{chunk} to @var{volume}, an integer in the range [0,128]. Return the previous chunk volume setting. @end deffn -@deffn {Scheme Procedure} play-chunk! chunk @ +@deffn {Procedure} play-chunk! chunk @ [#:loops=0] @ [#:channel] Play @var{chunk} on @var{channel}, an integer channel identifier or @code{#f} @@ -1161,92 +1161,92 @@ to use the first unreserved audio channel. @var{chunk} will play @var{loops} + 1 times. Return the channel identifier that @var{chunk} is played on. @end deffn -@deffn {Scheme Procedure} set-channel-volume! channel volume +@deffn {Procedure} set-channel-volume! channel volume Set the loudness of @var{channel}, an integer channel identifier or @code{#f} for all channels, to @var{volume}, an integer in the range [0,128]. Return the previous volume of @var{channel}, or the average of all channels if @var{channel} is @code{#f}. @end deffn -@deffn {Scheme Procedure} pause-channel! channel +@deffn {Procedure} pause-channel! channel Pause playback on @var{channel}, an integer channel identifier, or @code{#f} to pause all channels. @end deffn -@deffn {Scheme Procedure} resume-channel! channel +@deffn {Procedure} resume-channel! channel Resume playback on @var{channel}, an integer channel identifier, or @code{#f} to resume all channels. @end deffn -@deffn {Scheme Procedure} stop-channel! channel +@deffn {Procedure} stop-channel! channel Halt playback on @var{channel}, an integer channel identifier, or @code{#f} to halt all channels. @end deffn -@deffn {Scheme Procedure} channel-playing? channel +@deffn {Procedure} channel-playing? channel Return @code{#t} if @var{channel} is playing. @end deffn -@deffn {Scheme Procedure} playing-channels-count +@deffn {Procedure} playing-channels-count Return the number of channels currently playing. @end deffn -@deffn {Scheme Procedure} channel-paused? channel +@deffn {Procedure} channel-paused? channel Return @code{#t} if @var{channel} is paused. @end deffn -@deffn {Scheme Procedure} paused-channels-count +@deffn {Procedure} paused-channels-count Return the number of channels that are paused. @end deffn -@deffn {Scheme Procedure} music? m +@deffn {Procedure} music? m Return @code{#t} if @var{m} is music. @end deffn -@deffn {Scheme Procedure} load-music file +@deffn {Procedure} load-music file Load music from @var{file}. @end deffn -@deffn {Scheme Procedure} delete-music! music +@deffn {Procedure} delete-music! music Delete the memory used for @var{music}. @end deffn -@deffn {Scheme Procedure} play-music! music [#:optional loops=1] +@deffn {Procedure} play-music! music [#:optional loops=1] Play @var{music}, repeated @var{loops} times. @var{loops} may be @code{#f}, in which case the music loops indefinitely. @end deffn -@deffn {Scheme Procedure} set-music-volume! volume +@deffn {Procedure} set-music-volume! volume Set music loudness to @var{volume}, an integer in the range [0,128]. Return the previous volume. @end deffn -@deffn {Scheme Procedure} music-volume +@deffn {Procedure} music-volume Return the music volume. @end deffn -@deffn {Scheme Procedure} pause-music! +@deffn {Procedure} pause-music! Puase the music. @end deffn -@deffn {Scheme Procedure} resume-music! +@deffn {Procedure} resume-music! Resume music playback. @end deffn -@deffn {Scheme Procedure} rewind-music! +@deffn {Procedure} rewind-music! Start music playback from the beginning. Rewinding is only supported for MOD, OGG, MP3, and native MIDI music. @end deffn -@deffn {Scheme Procedure} stop-music! +@deffn {Procedure} stop-music! Halt music playback. @end deffn -@deffn {Scheme Procedure} music-playing? +@deffn {Procedure} music-playing? Return @code{#t} if music is currently playing. @end deffn -@deffn {Scheme Procedure} music-paused? +@deffn {Procedure} music-paused? Return @code{#t} if music is currently paused. @end deffn @@ -1257,33 +1257,33 @@ Return @code{#t} if music is currently paused. (use-modules (sdl2 ttf)) @end example -@deffn {Scheme Procedure} ttf-init +@deffn {Procedure} ttf-init Initialize the TTF system. @end deffn -@deffn {Scheme Procedure} ttf-quit +@deffn {Procedure} ttf-quit Shut down and clean up the TTF system. @end deffn -@deffn {Scheme Procedure} load-font file point-size +@deffn {Procedure} load-font file point-size Load TTF font from @var{file} and return a new font object whose glyph size is @var{point-size}. @end deffn -@deffn {Scheme Procedure} delete-font! font +@deffn {Procedure} delete-font! font Delete the memory allocated for @var{font}. @end deffn -@deffn {Scheme Procedure} font-height font +@deffn {Procedure} font-height font Return the maximum height of @var{font}. @end deffn -@deffn {Scheme Procedure} render-font-solid font text color +@deffn {Procedure} render-font-solid font text color Render @var{text}, a UTF-8 encoded string, using @var{font} and @var{color}, the foreground color, and return a surface containing the results. @end deffn -@deffn {Scheme Procedure} render-font-blended font text color +@deffn {Procedure} render-font-blended font text color Render @var{text}, a UTF-8 encoded string, using @var{font} and @var{color}, the foreground color, and return a high-quality alpha-blended surface containing the results. |