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load_datafile_callback(3alleg4) [centos man page]

load_datafile_callback(3alleg4) 				  Allegro manual				   load_datafile_callback(3alleg4)

load_datafile_callback - Loads a datafile into memory, calling a hook per object. Allegro game programming library. SYNOPSIS
#include <allegro.h> DATAFILE *load_datafile_callback(const char *filename, void (*callback)(DATAFILE *d)); DESCRIPTION
Loads a datafile into memory, calling the specified hook function once for each object in the file, passing it a pointer to the object just read. You can use this to implement very simple loading screens where every time the hook is called, the screen is updated to let the user know your program is still loading from disk: void load_callback(DATAFILE *dat_obj) { static const char indicator[] = "-\|/-.oOXOo."; static int current = 0; /* Show a different character every time. */ textprintf_ex(screen, font, 0, 0, makecol(0, 0, 0), makecol(255, 255, 255), "%c Loading %c", indicator[current], indicator[current]); /* Increase index and check if we need to reset it. */ current++; if (!indicator[current]) current = 0; } ... dat = load_datafile_callback("data.dat", load_callback); RETURN VALUE
Returns a pointer to the DATAFILE or NULL on error. Remember to free this DATAFILE later to avoid memory leaks. SEE ALSO
load_datafile(3alleg4), unload_datafile(3alleg4), load_datafile_object(3alleg4), set_color_conversion(3alleg4), fixup_datafile(3alleg4), packfile_password(3alleg4), find_datafile_object(3alleg4), register_datafile_object(3alleg4) Allegro version 4.4.2 load_datafile_callback(3alleg4)

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exzbuf(3alleg4) 						  Allegro manual						   exzbuf(3alleg4)

exzbuf - Z-buffered polygons demo. Allegro game programming library. SYNOPSIS
#include <allegro.h> Example exzbuf DESCRIPTION
This program demonstrates how to use Z-buffered polygons and floating point 3D math routines. It also provides a simple way to compute fps (frames per second) using a timer. After selecting a screen resolution through the standard GUI dialog, the example shows two 3D cubes rotating and intersecting each other. Rather than having full polygons incorrectly overlap other polygons due to per-polygon sorting, each pixel is drawn at the correct depth. SEE ALSO
BITMAP(3alleg4), END_OF_FUNCTION(3alleg4), END_OF_MAIN(3alleg4), LOCK_FUNCTION(3alleg4), LOCK_VARIABLE(3alleg4), MATRIX_f(3alleg4), PAL- ETTE(3alleg4), POLYTYPE_GCOL(3alleg4), SCREEN_H(3alleg4), SCREEN_W(3alleg4), V3D_f(3alleg4), ZBUFFER(3alleg4), allegro_error(3alleg4), allegro_exit(3alleg4), allegro_init(3alleg4), allegro_message(3alleg4), apply_matrix_f(3alleg4), bitmap_color_depth(3alleg4), blit(3alleg4), clear_bitmap(3alleg4), clear_zbuffer(3alleg4), create_bitmap(3alleg4), create_zbuffer(3alleg4), desktop_palette(3alleg4), destroy_bitmap(3alleg4), destroy_zbuffer(3alleg4), font(3alleg4), get_transformation_matrix_f(3alleg4), gfx_mode_select_ex(3alleg4), install_int(3alleg4), install_keyboard(3alleg4), install_mouse(3alleg4), install_timer(3alleg4), keypressed(3alleg4), pal- ette_color(3alleg4), persp_project_f(3alleg4), polygon_z_normal_f(3alleg4), quad3d_f(3alleg4), readkey(3alleg4), screen(3alleg4), set_color_depth(3alleg4), set_gfx_mode(3alleg4), set_palette(3alleg4), set_palette_range(3alleg4), set_projection_viewport(3alleg4), set_zbuffer(3alleg4), textprintf_ex(3alleg4), vsync(3alleg4) Allegro version 4.4.2 exzbuf(3alleg4)
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