section 3alleg4 · Library functions 📚

E (continued)

• exmidi(3alleg4)Playing MIDI music. Allegro game programming library.✨
• exmouse(3alleg4)Getting input from the mouse. Allegro game programming library.✨
• expackf(3alleg4)Using custom PACKFILE vtables. Allegro game programming library.✨
• expal(3alleg4)Palette effects and color cycling. Allegro game programming library.✨
• expat(3alleg4)Using patterned drawing modes and sub-bitmaps. Allegro game programming library.✨
• exquat(3alleg4)A comparison between Euler angles and quaternions. Allegro game programming library.✨
• exrgbhsv(3alleg4)RGB <-> HSV color space conversions. Allegro game programming library.✨
• exrotscl(3alleg4)Demonstrates rotate_scaled_sprite functions. Allegro game programming library.✨
• exsample(3alleg4)Playing digital samples. Allegro game programming library.✨
• exscale(3alleg4)Loading PCX files and bitmap stretching. Allegro game programming library.✨
• exscn3d(3alleg4)Using the 3d scene functions. Allegro game programming library.✨
• exscroll(3alleg4)Mode-X hardware scrolling and split screens. Allegro game programming library.✨
• exshade(3alleg4)Gouraud shaded sprites. Allegro game programming library.✨
• exspline(3alleg4)Constructing smooth movement paths from spline curves. Allegro game programming library.✨
• exsprite(3alleg4)Datafiles access and sprite animation. Allegro game programming library.✨
• exstars(3alleg4)3d starfield and lightsourced spaceship. Allegro game programming library.✨
• exstream(3alleg4)Playing audio streams. Allegro game programming library.✨
• exswitch(3alleg4)Controlling the console switch mode for background running. Allegro game programming library.✨
• exsyscur(3alleg4)Hardware accelerated mouse cursors. Allegro game programming library.✨
• extimer(3alleg4)Using the timer (delays and interrupts). Allegro game programming library.✨
• extract_font_range(3alleg4)Extracts a range of characters from a font. Allegro game programming library.✨
• extrans(3alleg4)Lighting and translucency effects. Allegro game programming library.✨
• extrans2(3alleg4)Drawing flipped, translucent and tinted sprites. Allegro game programming library.✨
• extruec(3alleg4)Truecolor pixel format conversions. Allegro game programming library.✨
• exunicod(3alleg4)Using Unicode string functions. Allegro game programming library.✨
• exupdate(3alleg4)Supporting different screen update methods in a single program. Allegro game programming library.✨
• exxfade(3alleg4)Truecolor image loading and fades. Allegro game programming library.✨
• exzbuf(3alleg4)Z-buffered polygons demo. Allegro game programming library.✨

F

• fade_from(3alleg4)Gradually fades the palette between two others. Allegro game programming library.✨
• fade_from_range(3alleg4)Gradually fades a part of the palette between two others. Allegro game programming library.✨
• fade_in(3alleg4)Gradually fades the palette from black. Allegro game programming library.✨
• fade_in_range(3alleg4)Gradually fades a part of the palette from black. Allegro game programming library.✨
• fade_interpolate(3alleg4)Calculates a new palette interpolated between two others. Allegro game programming library.✨
• fade_out(3alleg4)Gradually fades the palette to black. Allegro game programming library.✨
• fade_out_range(3alleg4)Gradually fades a part of the palette to black. Allegro game programming library.✨
• fastline(3alleg4)Faster version of line(). Allegro game programming library.✨
• file_exists(3alleg4)Tells if a file exists. Allegro game programming library.✨
• file_select_ex(3alleg4)Displays the Allegro file selector with a caption.✨
• file_size_ex(3alleg4)Returns the size of a file in bytes. Allegro game programming library.✨
• file_time(3alleg4)Returns the modification time of a file. Allegro game programming library.✨
• find_allegro_resource(3alleg4)Searches for a support file in many places. Allegro game programming library.✨
• find_datafile_object(3alleg4)Searches a datafile for an object with a name. Allegro game programming library.✨
• find_dialog_focus(3alleg4)Searches the dialog for the object which has the input focus. Allegro game programming library.✨
• fix_filename_case(3alleg4)Converts a filename to a standardised case. Allegro game programming library.✨
• fix_filename_slashes(3alleg4)Converts all the directory separators to a standard character. Allegro game programming library.✨
• fixacos(3alleg4)Fixed point inverse cosine lookup table. Allegro game programming library.✨
• fixadd(3alleg4)Safe function to add fixed point numbers clamping overflow. Allegro game programming library.✨
• fixasin(3alleg4)Fixed point inverse sine lookup table. Allegro game programming library.✨
• fixatan(3alleg4)Fixed point inverse tangent lookup table. Allegro game programming library.✨
• fixatan2(3alleg4)Fixed point version of the libc atan2() routine. Allegro game programming library.✨
• fixceil(3alleg4)Returns the smallest integer not less than x. Allegro game programming library.✨
• fixcos(3alleg4)Fixed point cosine of binary angles. Allegro game programming library.✨
• fixdiv(3alleg4)Fixed point division. Allegro game programming library.✨
• fixed(3alleg4)Fixed point integer to replace floats. Allegro game programming library.✨
• fixfloor(3alleg4)Returns the greatest integer not greater than x. Allegro game programming library.✨
• fixhypot(3alleg4)Fixed point hypotenuse. Allegro game programming library.✨
• fixmul(3alleg4)Multiplies two fixed point values together. Allegro game programming library.✨
• fixsin(3alleg4)Fixed point sine of binary angles. Allegro game programming library.✨
• fixsqrt(3alleg4)Fixed point square root. Allegro game programming library.✨
• fixsub(3alleg4)Safe function to subtract fixed point numbers clamping underflow. Allegro game programming library.✨
• fixtan(3alleg4)Fixed point tangent of binary angles. Allegro game programming library.✨
• fixtof(3alleg4)Converts a fixed point to floating point. Allegro game programming library.✨
• fixtoi(3alleg4)Converts a fixed point to integer with rounding. Allegro game programming library.✨
• fixtorad_r(3alleg4)Constant to convert angles in fixed point format to radians. Allegro game programming library.✨
• fixup_datafile(3alleg4)Fixes truecolor images in compiled datafiles. Allegro game programming library.✨
• fli_bitmap(3alleg4)Contains the current frame of the animation. Allegro game programming library.✨
• fli_bmp_dirty_from(3alleg4)Indicate which parts of the image have changed. Allegro game programming library.✨
• fli_bmp_dirty_to(3alleg4)Indicate which parts of the image have changed. Allegro game programming library.✨
• fli_frame(3alleg4)Stores the current frame number of the animation. Allegro game programming library.✨
• fli_pal_dirty_from(3alleg4)Indicate which parts of the palette have changed. Allegro game programming library.✨
• fli_pal_dirty_to(3alleg4)Indicate which parts of the palette have changed. Allegro game programming library.✨
• fli_palette(3alleg4)Contains the current palette of the animation. Allegro game programming library.✨
• fli_timer(3alleg4)Global variable for timing FLI playback. Allegro game programming library.✨
• floodfill(3alleg4)Floodfills an enclosed area. Allegro game programming library.✨
• flush_config_file(3alleg4)Flushes the current config file to disk. Allegro game programming library.✨
• FONT(3alleg4)Stores an Allegro font.✨
• font(3alleg4)A simple 8x8 fixed size font. Allegro game programming library.✨
• font_has_alpha(3alleg4)Search all pixels of a font for alpha values. Allegro game programming library.✨
• for_each_file_ex(3alleg4)Executes callback() for each file matching a wildcard. Allegro game programming library.✨
• free_audio_stream_buffer(3alleg4)Tells the audio stream player new data can be played. Allegro game programming library.✨
• free_config_entries(3alleg4)Frees memory allocated for config entry lists. Allegro game programming library.✨
• free_lzss_pack_data(3alleg4)Frees an LZSS structure. Allegro game programming library.✨
• free_lzss_unpack_data(3alleg4)Frees an LZSS structure. Allegro game programming library.✨
• freeze_mouse_flag(3alleg4)Flag to avoid redrawing the mouse pointer. Allegro game programming library.✨
• ftofix(3alleg4)Converts a floating point value to fixed point. Allegro game programming library.✨

G

• generate_332_palette(3alleg4)Constructs a fake truecolor palette. Allegro game programming library.✨
• generate_optimized_palette(3alleg4)Generates an optimized palette for a bitmap. Allegro game programming library.✨
• get_align_matrix(3alleg4)Rotates a matrix to align it along specified coordinate vectors. Allegro game programming library.✨
• get_align_matrix_f(3alleg4)Floating point version of get_align_matrix(). Allegro game programming library.✨
• get_audio_stream_buffer(3alleg4)Tells you if you need to fill the audiostream or not. Allegro game programming library.✨
• get_camera_matrix(3alleg4)Constructs a camera matrix for perspective projection. Allegro game programming library.✨
• get_camera_matrix_f(3alleg4)Floating point version of get_camera_matrix(). Allegro game programming library.✨
• get_clip_rect(3alleg4)Returns the clipping rectangle of a bitmap. Allegro game programming library.✨
• get_clip_state(3alleg4)Tells if clipping is on for a bitmap. Allegro game programming library.✨
• get_color(3alleg4)Retrieves the specified palette entry. Allegro game programming library.✨
• get_color_conversion(3alleg4)Returns the current color conversion mode. Allegro game programming library.✨
• get_color_depth(3alleg4)Returns the current pixel color depth. Allegro game programming library.✨
• get_compiled_sprite(3alleg4)Creates a compiled sprite using a bitmap as source. Allegro game programming library.✨
• get_config_argv(3alleg4)Reads a token list from the configuration file. Allegro game programming library.✨
• get_config_float(3alleg4)Retrieves a float from the configuration file. Allegro game programming library.✨
• get_config_hex(3alleg4)Retrieves a hexadecimal value from the configuration file. Allegro game programming library.✨
• get_config_id(3alleg4)Retrieves a driver ID from a configuration file. Allegro game programming library.✨
• get_config_int(3alleg4)Retrieves an integer from the configuration file. Allegro game programming library.✨
• get_config_string(3alleg4)Retrieves a string from the configuration file. Allegro game programming library.✨
• get_config_text(3alleg4)Returns a string translated to the current language. Allegro game programming library.✨
• get_datafile_property(3alleg4)Returns the property string for the object. Allegro game programming library.✨
• get_desktop_resolution(3alleg4)Finds out the desktop resolution. Allegro game programming library.✨
• get_display_switch_mode(3alleg4)Returns the current display switching mode. Allegro game programming library.✨
• get_executable_name(3alleg4)Obtains the full path to the current executable. Allegro game programming library.✨
• get_extension(3alleg4)Returns a pointer to the extension of a filename. Allegro game programming library.✨
• get_filename(3alleg4)Returns a pointer to the filename portion of a path. Allegro game programming library.✨
• get_filename_encoding(3alleg4)Returns the encoding currently assumed for filenames. Allegro game programming library.✨
• get_font_range_begin(3alleg4)Returns the start of a character range in a font. Allegro game programming library.✨
• get_font_range_end(3alleg4)Returns the last character of a character range in a font. Allegro game programming library.✨
• get_font_ranges(3alleg4)Returns the number of character ranges in a font. Allegro game programming library.✨
• get_gfx_mode(3alleg4)Returns the id of the current graphics driver. Allegro game programming library.✨
• get_gfx_mode_list(3alleg4)Obtains a list of available video modes. Allegro game programming library.✨
• get_gfx_mode_type(3alleg4)Retrieves type information for a specific graphics card. Allegro game programming library.✨
• get_hardware_volume(3alleg4)Retrieves the hardware sound output volume. Allegro game programming library.✨
• get_midi_length(3alleg4)Determines the total playing time of a midi, in seconds. Allegro game programming library.✨
• get_mixer_bits(3alleg4)Returns the mixer bit depth (8 or 16). Allegro game programming library.✨
• get_mixer_buffer_length(3alleg4)Returns the number of samples per channel in the mixer buffer. Allegro game programming library.✨
• get_mixer_channels(3alleg4)Returns the number of output channels. Allegro game programming library.✨
• get_mixer_frequency(3alleg4)Returns the mixer frequency, in Hz. Allegro game programming library.✨
• get_mixer_quality(3alleg4)Returns the current mixing quality. Allegro game programming library.✨
• get_mixer_voices(3alleg4)Returns the number of voices allocated to the mixer. Allegro game programming library.✨
• get_mouse_mickeys(3alleg4)How far the mouse has moved since the last call to this function. Allegro game programming library.✨
• get_palette(3alleg4)Retrieves the entire palette of 256 colors. Allegro game programming library.✨
• get_palette_range(3alleg4)Retrieves a specific palette range. Allegro game programming library.✨
• get_refresh_rate(3alleg4)Returns the current refresh rate. Allegro game programming library.✨
• get_rle_sprite(3alleg4)Creates an RLE sprite using a bitmap as source. Allegro game programming library.✨
• get_rotation_matrix(3alleg4)Constructs X, Y, Z rotation matrices. Allegro game programming library.✨
• get_rotation_matrix_f(3alleg4)Constructs X, Y, Z rotation matrices. Allegro game programming library.✨
• get_rotation_quat(3alleg4)Constructs a quaternion to rotate points around all three axes. Allegro game programming library.✨
• get_scaling_matrix(3alleg4)Constructs a scaling matrix. Allegro game programming library.✨
• get_scaling_matrix_f(3alleg4)Constructs a scaling matrix. Allegro game programming library.✨
• get_sound_input_cap_bits(3alleg4)Checks which audio input sample formats are supported. Allegro game programming library.✨
• get_sound_input_cap_parm(3alleg4)Detects if the specified recording parameters are supported. Allegro game programming library.✨
• get_sound_input_cap_rate(3alleg4)Returns the maximum sample frequency for recording. Allegro game programming library.✨
• get_sound_input_cap_stereo(3alleg4)Tells if the input driver is capable of stereo recording. Allegro game programming library.✨
• get_transformation_matrix(3alleg4)Constructs X, Y, Z rotation matrices with an angle and scaling. Allegro game programming library.✨
• get_transformation_matrix_f(3alleg4)Floating point version of get_transformation_matrix(). Allegro game programming library.✨
• get_translation_matrix(3alleg4)Constructs a translation matrix. Allegro game programming library.✨
• get_translation_matrix_f(3alleg4)Constructs a translation matrix. Allegro game programming library.✨
• get_uformat(3alleg4)Finds out what text encoding format is currently selected. Allegro game programming library.✨
• get_vector_rotation_matrix(3alleg4)Constructs X, Y, Z rotation matrices with an angle. Allegro game programming library.✨
• get_vector_rotation_matrix_f(3alleg4)Constructs X, Y, Z rotation matrices with an angle. Allegro game programming library.✨
• get_vector_rotation_quat(3alleg4)Constructs a quaternion to rotate points around a vector. Allegro game programming library.✨
• get_volume(3alleg4)Retrieves the global sound output volume. Allegro game programming library.✨
• get_x_rotate_matrix(3alleg4)Construct X axis rotation matrices. Allegro game programming library.✨
• get_x_rotate_matrix_f(3alleg4)Construct X axis rotation matrices. Allegro game programming library.✨
• get_x_rotate_quat(3alleg4)Construct axis rotation quaternions. Allegro game programming library.✨
• get_y_rotate_matrix(3alleg4)Construct Y axis rotation matrices. Allegro game programming library.✨
• get_y_rotate_matrix_f(3alleg4)Construct Y axis rotation matrices. Allegro game programming library.✨
• get_y_rotate_quat(3alleg4)Construct axis rotation quaternions. Allegro game programming library.✨
• get_z_rotate_matrix(3alleg4)Construct Z axis rotation matrices. Allegro game programming library.✨
• get_z_rotate_matrix_f(3alleg4)Construct Z axis rotation matrices. Allegro game programming library.✨
• get_z_rotate_quat(3alleg4)Construct axis rotation quaternions. Allegro game programming library.✨
• geta(3alleg4)Extract a color component from the current pixel format. Allegro game programming library.✨
• geta32(3alleg4)Extract the alpha component form a 32-bit pixel format color. Allegro game programming library.✨
• geta_depth(3alleg4)Extract a color component from a color in a specified pixel format. Allegro game programming library.✨
• getb(3alleg4)Extract a color component from the current pixel format. Allegro game programming library.✨
• getb15(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getb16(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getb24(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getb32(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getb8(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getb_depth(3alleg4)Extract a color component from a color in a specified pixel format. Allegro game programming library.✨
• getg(3alleg4)Extract a color component from the current pixel format. Allegro game programming library.✨
• getg15(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getg16(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getg24(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getg32(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getg8(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getg_depth(3alleg4)Extract a color component from a color in a specified pixel format. Allegro game programming library.✨
• getpixel(3alleg4)Reads a pixel from a bitmap. Allegro game programming library.✨
• getr(3alleg4)Extract a color component from the current pixel format. Allegro game programming library.✨
• getr15(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getr16(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getr24(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getr32(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getr8(3alleg4)Extract a color component from the specified pixel format. Allegro game programming library.✨
• getr_depth(3alleg4)Extract a color component from a color in a specified pixel format. Allegro game programming library.✨
• gfx_capabilities(3alleg4)Bitfield describing video hardware capabilities. Allegro game programming library.✨
• GFX_MODE(3alleg4)Stores video mode information. Allegro game programming library.✨
• GFX_MODE_LIST(3alleg4)Stores an array of GFX_MODE structures. Allegro game programming library.✨
• gfx_mode_select(3alleg4)Displays the Allegro graphics mode selection dialog.✨
• gfx_mode_select_ex(3alleg4)Extended version of the graphics mode selection dialog. Allegro game programming library.✨
• gfx_mode_select_filter(3alleg4)Even more extended version of the graphics mode selection dialog. Allegro game programming library.✨
• grab_font_from_bitmap(3alleg4)Grabs a font from a bitmap Allegro game programming library.✨
• gui_bg_color(3alleg4)The foreground and background colors for the standard dialogs. Allegro game programming library.✨
• gui_button_proc(3alleg4)Hooks to customise the look and feel of Allegro dialogs.✨
• gui_ctext_proc(3alleg4)Hooks to customise the look and feel of Allegro dialogs.✨
• gui_edit_proc(3alleg4)Hooks to customise the look and feel of Allegro dialogs.✨
• gui_fg_color(3alleg4)The foreground and background colors for the standard dialogs. Allegro game programming library.✨
• gui_font_baseline(3alleg4)Adjusts the keyboard shortcut underscores height. Allegro game programming library.✨
• gui_get_screen(3alleg4)Returns the bitmap surface GUI routines draw to. Allegro game programming library.✨
• gui_list_proc(3alleg4)Hooks to customise the look and feel of Allegro dialogs.✨
• gui_menu_draw_menu(3alleg4)Hooks to modify the appearance of menus. Allegro game programming library.✨
• gui_menu_draw_menu_item(3alleg4)Hooks to modify the appearance of menus. Allegro game programming library.✨