Section 3: library functions
XSetPointerMapping, XGetPointerMapping – manipulate pointer settings Syntax int XSetPointerMapping(Display *display, unsigned char map[], int nmap); int XGetPointerMapping(Display *display, unsigned char map_return[], int nmap); Arguments display Specifies the connection to the X server. map Specifies the mapping list. map_return Returns the mapping list. nmap Specifies the number of items in the mapping list. Description The XSetPointerMapping…
XChangePointerControl, XGetPointerControl – control pointer Syntax int XChangePointerControl(Display *display, Bool do_accel, Bool do_threshold, int accel_numerator, int accel_denominator, int threshold); int XGetPointerControl(Display *display, int *accel_numerator_return, int *accel_denominator_return, int *threshold_return); Arguments accel_denominator Specifies the denominator for the acceleration multiplier. accel_denominator_return Returns the denominator for the acceleration multiplier. accel_numerator Specifies the numerator for the acceleration multiplier. accel_numerator_return Returns…
XInitImage, XCreateImage, XGetPixel, XPutPixel, XSubImage, XAddPixel, XDestroyImage – image utilities Syntax Status XInitImage(XImage *image); XImage *XCreateImage(Display *display, Visual *visual, unsigned int depth, int format, int offset, char *data, unsigned int width, unsigned int height, int bitmap_pad, int bytes_per_line); unsigned long XGetPixel(XImage *ximage, int x, int y); int XPutPixel(XImage *ximage, int x, int y, unsigned long…
XOpenOM, XCloseOM, XSetOMValues, XGetOMValues, XDisplayOfOM, XLocaleOfOM – open output methods Syntax XOM XOpenOM(Display *display, XrmDatabase db, char *res_name, char *res_class); Status XCloseOM(XOM om); char *XSetOMValues(XOM om); char *XGetOMValues(XOM om); Display *XDisplayOfOM(XOM om); char *XLocaleOfOM(XOM om); Arguments display Specifies the connection to the X server. db Specifies a pointer to the resource database. res_name Specifies the…
XCreateOC, XDestroyOC, XSetOCValues, XGetOCValues, XOMOfOC – create output contexts Syntax XOC XCreateOC(XOM om); void XDestroyOC(XOC oc); char * XSetOCValues(XOC oc, …); char * XGetOCValues(XOC oc, …); XOM XOMOfOC(XOC oc); Arguments oc Specifies the output context. om Specifies the output method. … Specifies the variable length argument list to set or get XOC values. Description The…
XSendEvent, XDisplayMotionBufferSize, XGetMotionEvents, XTimeCoord – send events and pointer motion history structure Syntax Status XSendEvent(Display *display, Window w, Bool propagate, long event_mask, XEvent *event_send); unsigned long XDisplayMotionBufferSize(Display *display); XTimeCoord *XGetMotionEvents(Display *display, Window w, Time start, Time stop, int *nevents_return); Arguments display Specifies the connection to the X server. event_mask Specifies the event mask. event_send Specifies…
XChangeKeyboardMapping, XGetKeyboardMapping, XDisplayKeycodes, XSetModifierMapping, XGetModifierMapping, XNewModifiermap, XInsertModifiermapEntry, XDeleteModifiermapEntry, XFreeModifiermap, XModifierKeymap – manipulate keyboard encoding and keyboard encoding structure Syntax int XChangeKeyboardMapping(Display *display, int first_keycode, int keysyms_per_keycode, KeySym *keysyms, int num_codes); KeySym *XGetKeyboardMapping(Display *display, KeyCode first_keycode, int keycode_count, int *keysyms_per_keycode_return); int XDisplayKeycodes(Display *display, int *min_keycodes_return, int *max_keycodes_return); int XSetModifierMapping(Display *display, XModifierKeymap *modmap); XModifierKeymap *XGetModifierMapping(Display *display); XModifierKeymap…
XChangeKeyboardMapping, XGetKeyboardMapping, XDisplayKeycodes, XSetModifierMapping, XGetModifierMapping, XNewModifiermap, XInsertModifiermapEntry, XDeleteModifiermapEntry, XFreeModifiermap, XModifierKeymap – manipulate keyboard encoding and keyboard encoding structure Syntax int XChangeKeyboardMapping(Display *display, int first_keycode, int keysyms_per_keycode, KeySym *keysyms, int num_codes); KeySym *XGetKeyboardMapping(Display *display, KeyCode first_keycode, int keycode_count, int *keysyms_per_keycode_return); int XDisplayKeycodes(Display *display, int *min_keycodes_return, int *max_keycodes_return); int XSetModifierMapping(Display *display, XModifierKeymap *modmap); XModifierKeymap *XGetModifierMapping(Display *display); XModifierKeymap…
XChangeKeyboardControl, XGetKeyboardControl, XAutoRepeatOn, XAutoRepeatOff, XBell, XQueryKeymap, XKeyboardControl – manipulate keyboard settings and keyboard control structure Syntax int XChangeKeyboardControl(Display *display, unsigned long value_mask, XKeyboardControl *values); int XGetKeyboardControl(Display *display, XKeyboardState *values_return); int XAutoRepeatOn(Display *display); int XAutoRepeatOff(Display *display); int XBell(Display *display, int percent); int XQueryKeymap(Display *display, char keys_return[32]); Arguments display Specifies the connection to the X server. keys_return…
XSetInputFocus, XGetInputFocus – control input focus Syntax int XSetInputFocus(Display *display, Window focus, int revert_to, Time time); int XGetInputFocus(Display *display, Window *focus_return, int *revert_to_return); Arguments display Specifies the connection to the X server. focus Specifies the window, PointerRoot, or None. focus_return Returns the focus window, PointerRoot, or None. revert_to Specifies where the input focus reverts to…
XPutImage, XGetImage, XGetSubImage – transfer images Syntax int XPutImage(Display *display, Drawable d, GC gc, XImage *image, int src_x, int src_y, int dest_x, int dest_y, unsigned int width, unsigned int height); XImage *XGetImage(Display *display, Drawable d, int x, int y, unsigned int width, unsigned int height, unsigned long plane_mask, int format); XImage *XGetSubImage(Display *display, Drawable d,…
XAllocIconSize, XSetIconSizes, XGetIconSizes, XIconSize – allocate icon size structure and set or read a window’s WM_ICON_SIZES property Syntax XIconSize *XAllocIconSize(void); int XSetIconSizes(Display *display, Window w, XIconSize *size_list, int count); Status XGetIconSizes(Display *display, Window w, XIconSize **size_list_return, int count_return); Arguments display Specifies the connection to the X server. count Specifies the number of items in the…
XSetWMIconName, XGetWMIconName, XSetIconName, XGetIconName – set or read a window’s WM_ICON_NAME property Syntax void XSetWMIconName(Display *display, Window w, XTextProperty *text_prop); Status XGetWMIconName(Display *display, Window w, XTextProperty *text_prop_return); int XSetIconName(Display *display, Window w, char *icon_name); Status XGetIconName(Display *display, Window w, char **icon_name_return); Arguments display Specifies the connection to the X server. icon_name Specifies the icon name,…
XOpenIM, XCloseIM, XSetIMValues, XGetIMValues, XDisplayOfIM, XLocaleOfIM, XRegisterIMInstantiateCallback, XUnregisterIMInstantiateCallback – open, close, and obtain input method information Syntax XIM XOpenIM(Display *display, XrmDatabase db, char *res_name, char *res_class); Status XCloseIM(XIM im); char *XSetIMValues(XIM im, …); char *XGetIMValues(XIM im, …); Display *XDisplayOfIM(XIM im); char *XLocaleOfIM(XIM im); Bool XRegisterIMInstantiateCallback(Display *display, XrmDatabase db, char *res_name, char *res_class, XIDProc callback, XPointer…
XSetICValues, XGetICValues – set and obtain XIC values Syntax char * XSetICValues(XIC ic, …); char * XGetICValues(XIC ic, …); Arguments ic Specifies the input context. … Specifies the variable length argument list to set or get XIC values. Description The XSetICValues function returns NULL if no error occurred; otherwise, it returns the name of the…
XGetWindowAttributes, XGetGeometry, XWindowAttributes – get current window attribute or geometry and current window attributes structure Syntax Status XGetWindowAttributes(Display *display, Window w, XWindowAttributes *window_attributes_return); Status XGetGeometry(Display *display, Drawable d, Window *root_return, int *x_return, int *y_return, unsigned int *width_return, unsigned int *height_return, unsigned int *border_width_return, unsigned int *depth_return); Arguments border_width_return Returns the border width in pixels. d…
XCreateGC, XCopyGC, XChangeGC, XGetGCValues, XFreeGC, XGContextFromGC, XGCValues – create or free graphics contexts and graphics context structure Syntax GC XCreateGC(Display *display, Drawable d, unsigned long valuemask, XGCValues *values); int XCopyGC(Display *display, GC src, unsigned long valuemask, GC dest); int XChangeGC(Display *display, GC gc, unsigned long valuemask, XGCValues *values); Status XGetGCValues(Display *display, GC gc, unsigned long…
XLoadFont, XQueryFont, XLoadQueryFont, XFreeFont, XGetFontProperty, XUnloadFont, XCharStruct, XFontProp, XChar2b, XFontStruct – load or unload fonts and font metric structures Syntax Font XLoadFont(Display *display, char *name); XFontStruct *XQueryFont(Display *display, XID font_ID); XFontStruct *XLoadQueryFont(Display *display, char *name); int XFreeFont(Display *display, XFontStruct *font_struct); Bool XGetFontProperty(XFontStruct *font_struct, Atom atom, unsigned long *value_return); int XUnloadFont(Display *display, Font font); Arguments atom…
XSetFontPath, XGetFontPath, XFreeFontPath – set, get, or free the font search path Syntax int XSetFontPath(Display *display, char **directories, int ndirs); char **XGetFontPath(Display *display, int *npaths_return); int XFreeFontPath(char **list); Arguments directories Specifies the directory path used to look for a font. Setting the path to the empty list restores the default path defined for the X…
XGetFeedbackControl, XChangeFeedbackControl – query and change input device feedbacks Synopsis #include <X11/extensions/XInput.h> XFeedbackState *XGetFeedbackControl( Display *display, XDevice *device, int *num_feedbacks); int XChangeFeedbackControl( Display *display, XDevice *device, Mask mask, XFeedbackControl *control); display Specifies the connection to the X server. device Specifies the device whose feedbacks are to be queried or modified. num_feedbacks Specifies an address into…