display

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allegro

This document pertains to display related methods found in the Allegro egg.

Please see the main [allegro] wiki page for more information.

Constants

default-display-adapter
vertex-cache-size

Enums

display-flag

display-flag->int display-flagprocedure

display-flag may be one of the following symbols:

windowed
fullscreen
opengl
direct3d-internal
resizable
noframe
generate-expose-events
opengl3
opengl-forward-compatible
fullscreen-window
minimized

int->display-flag integerprocedure

display-option

display-option->int display-optionprocedure

display-option may be one of the following symbols:

red-size
green-size
blue-size
alpha-size
red-shift
green-shift
blue-shift
alpha-shift
acc-red-size
acc-green-size
acc-blue-size
acc-alpha-size
stereo
aux-buffers
color-size
depth-size
stencil-size
sample-buffers
samples
render-method
float-color
float-depth
single-buffer
swap-method
compatible-display
update-display-region
vsync
max-bitmap-size
support-npot-bitmap
can-draw-into-bitmap
support-separate-alpha

int->display-option integerprocedure

display-option-importance

display-option-importance->int display-option-importanceprocedure

display-option-importance may be one of the following symbols:

dont-care
require
suggest

int->display-option-importance integerprocedure

display-orientation

display-orientation->int display-orientationprocedure

display-orientation may be one of the following symbols:

degrees-0
degrees-90
degrees-180
degrees-270
face-up
face-down

int->display-oprientation integerprocedure

gl-variant

gl-variant->int gl-variantprocedure

gl-variant may be one of the following symbols:

opengl
opengl-es

int->gl-variant integerprocedure

Records

Functions

new-display-refresh-rateprocedure: Implements al_get_new_display_refresh_rate.

new-display-refresh-rate-set! integerprocedure: Implements al_set_new_display_refresh_rate.

new-display-flagsprocedure: Implements al_get_new_display_flags.

new-display-flags-set! integerprocedure: Implements al_set_new_display_flags.

new-display-adapterprocedure: Implements al_get_new_display_adapter.

new-display-adapter-set! integerprocedure: Implements al_set_new_display_adpater.

new-display-window-positionprocedure: Returns a 2-element list consisting of the new display coordinates.

(new-display-window-position-set! (integer x) (integer y))procedure: Sets the a new display's window position.

new-display-option-value display-optionprocedure: Retrieves the value for a particular display-option for newly created displays.

new-display-option-importance display-optionprocedure: Retrieves the importance for a particular display-option for newly created dispalys.

(new-display-option-set! display-option (integer value) display-option-importance)procedure: Implements al_set_new_display_option.

new-display-reset-optionsprocedure: Implements al_reset_new_display_options.

(make-display* (integer width) (integer height))procedure: Implements al_create_display.

(make-display (integer width) (integer height))procedure: Implements al_create_display, with (free-display!) declared as a finalizer.

(make-display/mode* display-mode (integer adapter) (integer flags))procedure: Creates a new display, taking the refresh rate, width and height from a display-mode struct.

(make-display/mode display-mode (integer adapter) (integer flags))procedure: Creates a new display, taking the refresh rate, width and height from a display-mode struct, with (free-display-mode!) declared as a finalizer.

free-display! displayprocedure: Implements al_destroy_display.

current-displayprocedure: Implements al_get_current_display.

display-mode-countprocedure: Implements al_get_num_display_modes.

(display-mode-init! display-mode (integer index))procedure: Implements al_get_display_mode, returning #f if unsuccessful.

(update-display-region! (integer x) (integer y) (integer width) (integer height))procedure: Implements al_update_display_region.

compatible-bitmap? bitmapprocedure: Implements al_is_compatible_bitmap.

wait-for-vsyncprocedure: Implements al_wait_for_vsync.

(draw-pixel (float x) (floay y) color)procedure: Implements al_draw_pixel.

video-adapter-countprocedure: Implements al_get_num_video_adapters.

(monitor-init! monitor (integer adapter))procedure: Implements al_get_monitor_info.

display-option display display-optionprocedure: Implements al_get_display_option.

display-hold-bitmap-drawing! boolsetter: Implements al_hold_bitmap_drawing.

display-bitmap-drawing-held?procedure: Implements al_is_bitmap_drawing_help.

display-window-title-set! display stringprocedure: Implements al_set_window_title.

display-width displayprocedure: Implements al_get_display_width.

display-height displayprocedure: Implements al_get_display_height.

display-format displayprocedure: Implements al_get_display_format.

display-refresh-rate displayprocedure: Implements al_get_display_refresh_rate.

display-flags displayprocedure: Implements al_get_display_flags.

display-toggle-flag! display display-flag boolprocedure: Implements al_toggle_display_flag.

display-backbuffer displayprocedure: Implements al_get_backbuffer.

display-acknowledge-resize displayprocedure: Implements al_acknowledge_resize.

(display-resize! display (integer width) (integer height))procedure: Implements al_resize_display.

display-event-source displayprocedure: Implements al_get_display_event_source.

display-iconset! display bitmapprocedure: Implements al_set_display_icon.

clear-to-color colorprocedure: Implements al_clear_to_color.

target-bitmapprocedure: Implements al_get_target_bitmap.

target-bitmap-set! bitmapprocedure: Implements al_set_target_bitmap.

target-backbuffer-set! displayprocedure: Implements al_set_target_backbuffer.

flip-displayprocedure: Implements al_flip_display.

Direct3D

d3d-non-pow2-texture-support?procedure: Implements al_have_d3d_non_pow2_texture_support.

d3d-non-square-texture-support?procedure: Implements al_have_d3d_non_square_texture_support.

Bitmap Specific

bitmap-d3d-system-texture bitmapprocedure: Implements al_get_d3d_system_texture.

bitmap-d3d-video-texture bitmapprocedure: Implements al_get_d3d_video_texture.

bitmap-d3d-texture-position bitmapprocedure: Returns a 2-element list consisting of a u, v pair.

Display Specific

display-d3d-device-lost? displayprocedure: Implements al_is_d3d_device_lost.

display-d3d-device displayprocedure: Implements al_get_d3d_device.

OpenGL

opengl-addon-versionprocedure: Implements al_get_opengl_version.

opengl-extension-exists? stringprocedure: Implements al_have_opengl_extension.

opengl-proc-address stringprocedure: Implements al_get_opengl_proc_address.

opengl-texture bitmapprocedure: Implements al_get_opengl_texture.

opengl-remove-fbo! bitmapprocedure: Implements al_remove_opengl_fbo.

opengl-fbo bitmapprocedure: Implements al_get_opengl_fbo.

opengl-texture-size bitmapprocedure: Returns a 2-element list of the width and height of the opengl texture for the given bitmap.

opengl-texture-position bitmapprocedure: Returns a 2-element list of the u,v position of the opengl texture for the given bitmap.

opengl-context-set! displayprocedure: Implements al_set_current_opengl_context.

opengl-variantprocedure: Implements al_get_opengl_variant.

Windows

windows-window-handleprocedure: Implements al_get_win_window_handle.

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