Linux Manuals session 3

XSupportsLocale, XSetLocaleModifiers – determine locale support and configure locale modifiers Syntax Bool XSupportsLocale(void); char *XSetLocaleModifiers(char *modifier_list); Arguments modifier_list Specifies the modifiers. Description The XSupportsLocale function returns True if Xlib functions are capable of operating under the current locale. If it returns False, Xlib locale-dependent functions for which the XLocaleNotSupported return status is defined will return…

XSetLineAttributes, XSetDashes – GC convenience routines Syntax int XSetLineAttributes(Display *display, GC gc, unsigned int line_width, int line_style, int cap_style, int join_style); int XSetDashes(Display *display, GC gc, int dash_offset, char dash_list[], int n); Arguments cap_style Specifies the line-style and cap-style you want to set for the specified GC. You can pass CapNotLast, CapButt, CapRound, or CapProjecting….

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…

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,…

XSetErrorHandler, XGetErrorText, XDisplayName, XSetIOErrorHandler, XGetErrorDatabaseText – default error handlers Syntax int (*XSetErrorHandler(int (*handler)(Display *, XErrorEvent *)))(); int XGetErrorText(Display *display, int code, char *buffer_return, int length); char *XDisplayName(char *string); int (*XSetIOErrorHandler(int (*handler)(Display *)))(); int XGetErrorDatabaseText(Display *display, char *name, char *message, char *default_string, char *buffer_return, int length); Arguments buffer_return Returns the error description. code Specifies the error…

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…

XSetICFocus, XUnsetICFocus – set and unset input context focus Syntax void XSetICFocus(XIC ic); void XUnsetICFocus(XIC ic); Arguments ic Specifies the input context. Description The XSetICFocus function allows a client to notify an input method that the focus window attached to the specified input context has received keyboard focus. The input method should take action to…

XSetArcMode, XSetSubwindowMode, XSetGraphicsExposure – GC convenience routines Syntax int XSetArcMode(Display *display, GC gc, int arc_mode); int XSetSubwindowMode(Display *display, GC gc, int subwindow_mode); int XSetGraphicsExposures(Display *display, GC gc, Bool graphics_exposures); Arguments arc_mode Specifies the arc mode. You can pass ArcChord or ArcPieSlice. display Specifies the connection to the X server. gc Specifies the GC. graphics_exposures Specifies…

XSetState, XSetFunction, XSetPlaneMask, XSetForeground, XSetBackground – GC convenience routines Syntax int XSetState(Display *display, GC gc, unsigned long foreground, unsigned int background, int function, unsigned long plane_mask); int XSetFunction(Display *display, GC gc, int function); int XSetPlaneMask(Display *display, GC gc, unsigned long plane_mask); int XSetForeground(Display *display, GC gc, unsigned long foreground); int XSetBackground(Display *display, GC gc, unsigned…

XSetState, XSetFunction, XSetPlaneMask, XSetForeground, XSetBackground – GC convenience routines Syntax int XSetState(Display *display, GC gc, unsigned long foreground, unsigned int background, int function, unsigned long plane_mask); int XSetFunction(Display *display, GC gc, int function); int XSetPlaneMask(Display *display, GC gc, unsigned long plane_mask); int XSetForeground(Display *display, GC gc, unsigned long foreground); int XSetBackground(Display *display, GC gc, unsigned…

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…

XSetFont – GC convenience routines Syntax int XSetFont(Display *display, GC gc, Font font); Arguments display Specifies the connection to the X server. font Specifies the font. gc Specifies the GC. Description The XSetFont function sets the current font in the specified GC. XSetFont can generate BadAlloc, BadFont, and BadGC errors. Diagnostics BadAlloc The server failed…

XSetFillStyle, XSetFillRule – GC convenience routines Syntax int XSetFillStyle(Display *display, GC gc, int fill_style); int XSetFillRule(Display *display, GC gc, int fill_rule); Arguments display Specifies the connection to the X server. fill_rule Specifies the fill-rule you want to set for the specified GC. You can pass EvenOddRule or WindingRule. fill_style Specifies the fill-style you want to…

XSetFillStyle, XSetFillRule – GC convenience routines Syntax int XSetFillStyle(Display *display, GC gc, int fill_style); int XSetFillRule(Display *display, GC gc, int fill_rule); Arguments display Specifies the connection to the X server. fill_rule Specifies the fill-rule you want to set for the specified GC. You can pass EvenOddRule or WindingRule. fill_style Specifies the fill-style you want to…

XSetEventQueueOwner – set event queue owner on a shared Xlib/XCB connection Syntax  #include <X11/Xlib-xcb.h> void XSetEventQueueOwner(Display *dpy, enum XEventQueueOwner owner); Arguments dpy Specifies the connection to the X server. owner Specifies the event queue ownership: XlibOwnsEventQueue (default) Xlib owns the event queue. Use the Xlib event-handling functions. Do not call the XCB event-handling functions. XCBOwnsEventQueue XCB…

XSetErrorHandler, XGetErrorText, XDisplayName, XSetIOErrorHandler, XGetErrorDatabaseText – default error handlers Syntax int (*XSetErrorHandler(int (*handler)(Display *, XErrorEvent *)))(); int XGetErrorText(Display *display, int code, char *buffer_return, int length); char *XDisplayName(char *string); int (*XSetIOErrorHandler(int (*handler)(Display *)))(); int XGetErrorDatabaseText(Display *display, char *name, char *message, char *default_string, char *buffer_return, int length); Arguments buffer_return Returns the error description. code Specifies the error…

XSetDeviceValuators – initialize the valuators on an extension input device Synopsis #include <X11/extensions/XInput.h> XSetDeviceValuators( Display *display, XDevice *device, int *valuators, int first_valuator, int num_valuators); display Specifies the connection to the X server. device Specifies the device whose valuators are to be initialized. valuators Specifies a pointer to an array of integer values to be used…

XGetDeviceModifierMapping, XSetDeviceModifierMapping – query or change device modifier mappings Synopsis #include <X11/extensions/XInput.h> int XSetDeviceModifierMapping( Display *display, XDevice *device, XModifierKeymap *modmap); XModifierKeymap *XGetDeviceModifierMapping( Display *display, XDevice *device); display Specifies the connection to the X server. device Specifies the device whose modifier mapping is to be queried or modified. modmap Specifies a pointer to the XModifierKeymap structure….