SysTutorials Posts

NAME setaliasent, endaliasent, getaliasent, getaliasent_r, getaliasbyname, getaliasbyname_r – read an alias entry SYNOPSIS #include <aliases.h> void setaliasent(void); void endaliasent(void); struct aliasent *getaliasent(void); int getaliasent_r(struct aliasent *result, char *buffer, size_t buflen, struct aliasent **res); struct aliasent *getaliasbyname(const char *name); int getaliasbyname_r(const char *name, struct aliasent *result, char *buffer, size_t buflen, struct aliasent **res); DESCRIPTION One of…

NAME setaliasent, endaliasent, getaliasent, getaliasent_r, getaliasbyname, getaliasbyname_r – read an alias entry SYNOPSIS #include <aliases.h> void setaliasent(void); void endaliasent(void); struct aliasent *getaliasent(void); int getaliasent_r(struct aliasent *result, char *buffer, size_t buflen, struct aliasent **res); struct aliasent *getaliasbyname(const char *name); int getaliasbyname_r(const char *name, struct aliasent *result, char *buffer, size_t buflen, struct aliasent **res); DESCRIPTION One of…

NAME setaliasent, endaliasent, getaliasent, getaliasent_r, getaliasbyname, getaliasbyname_r – read an alias entry SYNOPSIS #include <aliases.h> void setaliasent(void); void endaliasent(void); struct aliasent *getaliasent(void); int getaliasent_r(struct aliasent *result, char *buffer, size_t buflen, struct aliasent **res); struct aliasent *getaliasbyname(const char *name); int getaliasbyname_r(const char *name, struct aliasent *result, char *buffer, size_t buflen, struct aliasent **res); DESCRIPTION One of…

NAME getaddrinfo_a, gai_suspend, gai_error, gai_cancel – asynchronous network address and service translation SYNOPSIS #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <netdb.h> int getaddrinfo_a(int mode, struct gaicb *list[], int nitems, struct sigevent *sevp); int gai_suspend(const struct gaicb *const list[], int nitems, const struct timespec *timeout); int gai_error(struct gaicb *req); int gai_cancel(struct gaicb *req); Link with -…

getaddrinfo, freeaddrinfo, gai_strerror – network address and service translation Synopsis #include <netdb.h> #include <sys/socket.h> #include <sys/types.h> int getaddrinfo(const char *node, const char *service, const struct addrinfo *hints, struct addrinfo **res); void freeaddrinfo(struct addrinfo *res); const char *gai_strerror(int errcode); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): getaddrinfo(), freeaddrinfo(), gai_strerror():     Since glibc 2.22: _POSIX_C_SOURCE >= 200112L     Glibc 2.21 and…

NAME getr_depth, getg_depth, getb_depth, geta_depth – Extract a color component from a color in a specified pixel format. Allegro game programming library. SYNOPSIS #include <allegro.h> int getr_depth(int color_depth, int c); int getg_depth(int color_depth, int c); int getb_depth(int color_depth, int c); int geta_depth(int color_depth, int c); DESCRIPTION Given a color in the format being used by…

NAME get_z_rotate_matrix, get_z_rotate_matrix_f – Construct Z axis rotation matrices. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_z_rotate_matrix(MATRIX *m, fixed r); void get_z_rotate_matrix_f(MATRIX_f *m, float r); DESCRIPTION Construct Z axis rotation matrices, storing them in m. When applied to a point, these matrices will rotate it about the Z axis by the specified angle (given…

NAME get_z_rotate_matrix, get_z_rotate_matrix_f – Construct Z axis rotation matrices. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_z_rotate_matrix(MATRIX *m, fixed r); void get_z_rotate_matrix_f(MATRIX_f *m, float r); DESCRIPTION Construct Z axis rotation matrices, storing them in m. When applied to a point, these matrices will rotate it about the Z axis by the specified angle (given…

NAME get_y_rotate_matrix, get_y_rotate_matrix_f – Construct Y axis rotation matrices. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_y_rotate_matrix(MATRIX *m, fixed r); void get_y_rotate_matrix_f(MATRIX_f *m, float r); DESCRIPTION Construct Y axis rotation matrices, storing them in m. When applied to a point, these matrices will rotate it about the Y axis by the specified angle (given…

NAME get_y_rotate_matrix, get_y_rotate_matrix_f – Construct Y axis rotation matrices. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_y_rotate_matrix(MATRIX *m, fixed r); void get_y_rotate_matrix_f(MATRIX_f *m, float r); DESCRIPTION Construct Y axis rotation matrices, storing them in m. When applied to a point, these matrices will rotate it about the Y axis by the specified angle (given…

NAME get_x_rotate_matrix, get_x_rotate_matrix_f – Construct X axis rotation matrices. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_x_rotate_matrix(MATRIX *m, fixed r); void get_x_rotate_matrix_f(MATRIX_f *m, float r); DESCRIPTION Construct X axis rotation matrices, storing them in m. When applied to a point, these matrices will rotate it about the X axis by the specified angle (given…

NAME get_x_rotate_matrix, get_x_rotate_matrix_f – Construct X axis rotation matrices. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_x_rotate_matrix(MATRIX *m, fixed r); void get_x_rotate_matrix_f(MATRIX_f *m, float r); DESCRIPTION Construct X axis rotation matrices, storing them in m. When applied to a point, these matrices will rotate it about the X axis by the specified angle (given…

NAME get_volume – Retrieves the global sound output volume. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_volume(int *digi_volume, int *midi_volume); DESCRIPTION Retrieves the global sound output volume, both for digital samples and MIDI playback, as integers from 0 to 255. Parameters digi_volume and midi_volume must be valid pointers to int, or NULL if not…

NAME get_vector_rotation_matrix, get_vector_rotation_matrix_f – Constructs X, Y, Z rotation matrices with an angle. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_vector_rotation_matrix(MATRIX *m, fixed x, y, z, fixed a); void get_vector_rotation_matrix_f(MATRIX_f *m, float x, y, z, float a); DESCRIPTION Constructs a transformation matrix which will rotate points around the specified x,y,z vector by the specified…

NAME get_vector_rotation_matrix, get_vector_rotation_matrix_f – Constructs X, Y, Z rotation matrices with an angle. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_vector_rotation_matrix(MATRIX *m, fixed x, y, z, fixed a); void get_vector_rotation_matrix_f(MATRIX_f *m, float x, y, z, float a); DESCRIPTION Constructs a transformation matrix which will rotate points around the specified x,y,z vector by the specified…

NAME get_vector_list — retrieve a list of vector fields in a dirfile SYNOPSIS #include <getdata.h> const char **get_vector_list(DIRFILE *dirfile); DESCRIPTION The get_vector_list() function queries a dirfile(5) database specified by dirfile and returns a read-only list of names of the all vector type fields defined in the database (i.e. fields of types BIT,~LINCOM,~LINTERP,~MULTIPLY,~PHASE,~POLYNOM,~RAW, SBIT). Notably, this…

NAME get_uformat – Finds out what text encoding format is currently selected. Allegro game programming library. SYNOPSIS #include <allegro.h> int get_uformat(void); DESCRIPTION Finds out what text encoding format is currently selected. This function is probably useful only if you are writing an Allegro addon dealing with text strings and you use a different codepath for…

NAME get_translation_matrix, get_translation_matrix_f – Constructs a translation matrix. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_translation_matrix(MATRIX *m, fixed x, fixed y, fixed z); void get_translation_matrix_f(MATRIX_f *m, float x, float y, float z); DESCRIPTION Constructs a translation matrix, storing it in m. When applied to the point (px, py, pz), this matrix will produce the…

NAME get_translation_matrix, get_translation_matrix_f – Constructs a translation matrix. Allegro game programming library. SYNOPSIS #include <allegro.h> void get_translation_matrix(MATRIX *m, fixed x, fixed y, fixed z); void get_translation_matrix_f(MATRIX_f *m, float x, float y, float z); DESCRIPTION Constructs a translation matrix, storing it in m. When applied to the point (px, py, pz), this matrix will produce the…