Linux Manuals session 3

XtError, XtSetErrorHandler, XtSetWarningHandler, XtWarning – low-level error handlers Syntax#include <X11/Intrinsic.h> void XtError(const char *message); void XtSetErrorHandler(XtErrorHandler handler); void XtSetWarningHandler(XtErrorHandler handler); void XtWarning(const char *message);Argumentsmessage Specifies the nonfatal error message that is to be reported. handler Specifies the new fatal error procedure, which should not return, or the nonfatal error procedure, which usually returns. message Specifies…

XtSetWMColormapWindows – Set the value of the WM_COLORMAP_WINDOWS property Syntax#include <X11/Intrinsic.h> void XtSetWMColormapWindows(Widget widget, Widget* list, Cardinal count);Argumentswidget Specifies the widget on whose window the WM_COLORMAP_WINDOWS property will be stored. Must be of class Core or any subclass thereof. list Specifies a list of widgets whose windows are are potentially to be listed in the…

XtSetValues, XtVaSetValues, XtSetSubvalues, XtVaSetSubvalues, XtGetValues, XtVaGetValues, XtGetSubvalues, XtVaGetSubvalues – obtain and set widget resources Syntax#include <X11/Intrinsic.h> void XtSetValues(Widget w, ArgList args, Cardinal num_args); void XtVaSetValues(Widget w, …); void XtSetSubvalues(XtPointer base, XtResourceList resources, Cardinal num_resources, ArgList args, Cardinal num_args); void XtVaSetSubvalues(XtPointer base, XtResourceList resources, Cardinal num_resources, …); void XtGetValues(Widget w, ArgList args, Cardinal num_args); void XtVaGetValues(Widget…

XtAppSetTypeConverter, XtSetTypeConverter – register resource converter Syntax#include <X11/Intrinsic.h> void XtAppSetTypeConverter(XtAppContext app_context, const char *from_type, const char * to_type, XtTypeConverter converter, XtConvertArgList convert_args, Cardinal num_args, XtCacheType cache_type, XtDestructor destructor); void XtSetTypeConverter(const char *from_type, const char *to_type, XtTypeConverter converter, XtConvertArgList convert_args, Cardinal num_args, XtCacheType cache_type, XtDestructor destructor);Argumentsapp_context Specifies the application context. converter Specifies the type converter procedure….

XtSetValues, XtVaSetValues, XtSetSubvalues, XtVaSetSubvalues, XtGetValues, XtVaGetValues, XtGetSubvalues, XtVaGetSubvalues – obtain and set widget resources Syntax#include <X11/Intrinsic.h> void XtSetValues(Widget w, ArgList args, Cardinal num_args); void XtVaSetValues(Widget w, …); void XtSetSubvalues(XtPointer base, XtResourceList resources, Cardinal num_resources, ArgList args, Cardinal num_args); void XtVaSetSubvalues(XtPointer base, XtResourceList resources, Cardinal num_resources, …); void XtGetValues(Widget w, ArgList args, Cardinal num_args); void XtVaGetValues(Widget…

XtSetSensitive, XtIsSensitive – set and check a widget’s sensitivity state Syntax#include <X11/Intrinsic.h> void XtSetSensitive(Widget w, Boolean sensitive); Boolean XtIsSensitive(Widget w);Argumentssensitive Specifies a Boolean value that indicates whether the widget should receive keyboard and pointer events. w Specifies the widget.DescriptionThe XtSetSensitive function first calls XtSetValues on the current widget with an argument list specifying that the…

XtGetSelectionTimeout, XtSetSelectionTimeout – set and obtain selection timeout values Syntax#include <X11/Intrinsic.h> unsigned long XtGetSelectionTimeout(void); void XtSetSelectionTimeout(unsigned long timeout);Argumentstimeout Specifies the selection timeout in milliseconds.DescriptionThe XtGetSelectionTimeout function has been superceded by XtAppGetSelectionTimeout. The XtSetSelectionTimeout function has been superceded by XtAppSetSelectionTimeout. See AlsoXtAppGetSelectionTimeout(3) X Toolkit Intrinsics – C Language Interface Xlib – C Language X Interface

XtSetSelectionParameters – specify target parameters for a selection request with a single target Syntax#include <X11/Intrinsic.h> void XtSetSelectionParameters(Widget requestor, Atom selection, Atom type, XtPointer value, unsigned long length, int format);Argumentsrequestor Specifies the widget making the request. Must be of class Core or any subclass thereof. selection Specifies the atom that names the selection. type Specifies the…

XtSetMultiClickTime, XtGetMultiClickTime – set and get multi-click times Syntax#include <X11/Intrinsic.h> void XtSetMultiClickTime(Display* display, int time); int XtGetMultiClickTime(Display* display);Argumentsdisplay Specifies the display connection. time Specifies the multi-click time in milliseconds.DescriptionXtSetMultiClickTime sets the time interval used by the translation manager to determine when multiple events are interpreted as a repeated event. XtGetMultiClickTime returns the time in milliseconds…

XtMapWidget, XtSetMappedWhenManaged, XtUnmapWidget – map and unmap widgets Syntax#include <X11/Intrinsic.h> void XtMapWidget(Widget w); void XtSetMappedWhenManaged(Widget w, Boolean map_when_managed); void XtUnmapWidget(Widget w);Argumentsmap_when_managed Specifies a Boolean value that indicates the new value of the map_when_managed field. w Specifies the widget.DescriptionIf the widget is realized and managed and if the new value of map_when_managed is True, XtSetMappedWhenManaged maps…

XtSetLanguageProc – set the language procedure Syntax#include <X11/Intrinsic.h> XtLanguageProc XtSetLanguageProc(XtAppContext app_context, XtLanguageProc proc, XtPointer client_data);Argumentsapp_context Specifies the application context in which the language procedure is to be used, or NULL.proc Specifies the language procedure, or NULL.client_data Specifies additional client data to be passed to the language procedure when it is called.DescriptionXtSetLanguageProc sets the language procedure…

XtSetKeyboardFocus – focus events on a child widget Syntax#include <X11/Intrinsic.h> void XtSetKeyboardFocus(Widget subtree, Widget descendant);Argumentssubtree Specifies either the widget in the subtree structure which is to receive the keyboard event, or None. Note that it is not an error to specify None when no input focus was previously set. descendant Specifies the widget for which…

XtSetKeyTranslator, XtTranslateKeycode, XtRegisterCaseConverter, XtConvertCase – convert KeySym to KeyCodes Syntax#include <X11/Intrinsic.h> void XtSetKeyTranslator(Display *display, XtKeyProc proc); void XtTranslateKeycode(Display *display, KeyCode keycode, Modifiers modifiers, Modifiers *modifiers_return, KeySym *keysym_return); void XtRegisterCaseConverter(Display *display, XtCaseProc proc, KeySym start, KeySym stop); void XtConvertCase(Display *display, KeySym keysym, KeySym *lower_return, KeySym *upper_return);Argumentsdisplay Specifies the display. keycode Specifies the KeyCode to translate. keysym…

XtInsertEventTypeHandler, XtRemoveEventTypeHandler, XtRegisterExtensionSelector, XtSetEventDispatcher, XtDispatchEventToWidget – extension event handling Syntax#include <X11/Intrinsic.h> void XtInsertEventTypeHandler(Widget widget, int event_type, XtPointer select_data, XtEventHandler proc, XtPointer client_data, XtListPosition position); void XtRemoveEventTypeHandler(Widget widget, int event_type, XtPointer select_data, XtEventHandler proc, XtPointer client_data); void XtRegisterExtensionSelector(Display* display, int min_event_type, int max_event_type, XtExtensionSelectProc proc, XtPointer client_data); XtEventDispatchProc XtSetEventDispatcher(Display* display, int event_type, XtEventDispatchProc proc); Boolean XtDispatchEventToWidget(Widget…

XtErrorMsg, XtSetErrorMsgHandler, XtWarningMsg, XtSetWarningMsgHandler – high-level error handlers Syntax#include <X11/Intrinsic.h> void XtErrorMsg(const char *name, const char *type, const char *class, const char *defaultMsg, String *params, Cardinal *num_params); void XtSetErrorMsgHandler(XtErrorMsgHandler msg_handler); void XtSetWarningMsgHandler(XtErrorMsgHandler msg_handler); void XtWarningMsg(const char *name, const char *type, const char *class, const char *defaultMsg, String *params, Cardinal *num_params);Argumentsclass Specifies the resource class of…

XtError, XtSetErrorHandler, XtSetWarningHandler, XtWarning – low-level error handlers Syntax#include <X11/Intrinsic.h> void XtError(const char *message); void XtSetErrorHandler(XtErrorHandler handler); void XtSetWarningHandler(XtErrorHandler handler); void XtWarning(const char *message);Argumentsmessage Specifies the nonfatal error message that is to be reported. handler Specifies the new fatal error procedure, which should not return, or the nonfatal error procedure, which usually returns. message Specifies…

XtSetArg, XtMergeArgLists – set and merge ArgLists Syntax#include <X11/Intrinsic.h> int XtSetArg(Arg arg, String name, XtArgVal value); ArgList XtMergeArgLists(ArgList args1, Cardinal num_args1, ArgList args2, Cardinal num_args2);Argumentsarg Specifies the name-value pair to set. args1 Specifies the first ArgList. args2 Specifies the second ArgList. num_args1 Specifies the number of arguments in the first argument list. num_args2 Specifies the…

XtSessionGetToken, XtSessionReturnToken – token management for checkpointing Syntax#include <X11/Intrinsic.h> XtCheckpointToken XtSessionGetToken(Widget w); void XtSessionReturnToken(XtCheckpointToken token);Argumentsw Specifies the session widget. token Specifies the token to be returned.DescriptionThe XtSessionGetToken function will return NULL if the checkpoint operation instigated by the session manager is not currently under way. To indicate the completion of a deferred save operation and…

XtSessionGetToken, XtSessionReturnToken – token management for checkpointing Syntax#include <X11/Intrinsic.h> XtCheckpointToken XtSessionGetToken(Widget w); void XtSessionReturnToken(XtCheckpointToken token);Argumentsw Specifies the session widget. token Specifies the token to be returned.DescriptionThe XtSessionGetToken function will return NULL if the checkpoint operation instigated by the session manager is not currently under way. To indicate the completion of a deferred save operation and…

XtCreateSelectionRequest, XtSendSelectionRequest, XtCancelSelectionRequest – bundle multiple selection conversion requests into a single request using MULTIPLE target Syntax#include <X11/Intrinsic.h> void XtCreateSelectionRequest(Widget requestor, Atom selection); void XtSendSelectionRequest(Widget requestor, Atom selection, Time time); void XtCancelSelectionRequest(Widget requestor, Atom selection);Argumentsrequestor Specifies the widget making the request. Must be of class Core or a subclass thereof. selection Specifies the particular selection…