Linux Manuals

 Xrandr – X Resize, Rotate and Reflection extension. Syntax#include <X11/extensions/Xrandr.h> Bool XRRQueryExtension (Display *dpy, int *event_base_return, int *error_base_return); Status XRRQueryVersion (Display *dpy, int *major_version_return, int *minor_version_return); XRRScreenConfiguration *XRRGetScreenInfo (Display *dpy, Drawable draw); void XRRFreeScreenConfigInfo ( XRRScreenConfiguration *config); Status XRRSetScreenConfig (Display *dpy, XRRScreenConfiguration *config, Drawable draw, int size_index, Rotation rotation, Time timestamp); Status XRRSetScreenConfigAndRate (Display *dpy,…

 Xrandr – X Resize, Rotate and Reflection extension. Syntax#include <X11/extensions/Xrandr.h> Bool XRRQueryExtension (Display *dpy, int *event_base_return, int *error_base_return); Status XRRQueryVersion (Display *dpy, int *major_version_return, int *minor_version_return); XRRScreenConfiguration *XRRGetScreenInfo (Display *dpy, Drawable draw); void XRRFreeScreenConfigInfo ( XRRScreenConfiguration *config); Status XRRSetScreenConfig (Display *dpy, XRRScreenConfiguration *config, Drawable draw, int size_index, Rotation rotation, Time timestamp); Status XRRSetScreenConfigAndRate (Display *dpy,…

 Xrandr – X Resize, Rotate and Reflection extension. Syntax#include <X11/extensions/Xrandr.h> Bool XRRQueryExtension (Display *dpy, int *event_base_return, int *error_base_return); Status XRRQueryVersion (Display *dpy, int *major_version_return, int *minor_version_return); XRRScreenConfiguration *XRRGetScreenInfo (Display *dpy, Drawable draw); void XRRFreeScreenConfigInfo ( XRRScreenConfiguration *config); Status XRRSetScreenConfig (Display *dpy, XRRScreenConfiguration *config, Drawable draw, int size_index, Rotation rotation, Time timestamp); Status XRRSetScreenConfigAndRate (Display *dpy,…

 Xrandr – X Resize, Rotate and Reflection extension. Syntax#include <X11/extensions/Xrandr.h> Bool XRRQueryExtension (Display *dpy, int *event_base_return, int *error_base_return); Status XRRQueryVersion (Display *dpy, int *major_version_return, int *minor_version_return); XRRScreenConfiguration *XRRGetScreenInfo (Display *dpy, Drawable draw); void XRRFreeScreenConfigInfo ( XRRScreenConfiguration *config); Status XRRSetScreenConfig (Display *dpy, XRRScreenConfiguration *config, Drawable draw, int size_index, Rotation rotation, Time timestamp); Status XRRSetScreenConfigAndRate (Display *dpy,…

XQueryTree – query window tree information SyntaxStatus XQueryTree(Display *display, Window w, Window *root_return, Window *parent_return, Window **children_return, unsigned int *nchildren_return);Argumentschildren_return Returns the list of children. display Specifies the connection to the X server. nchildren_return Returns the number of children. parent_return Returns the parent window. root_return Returns the root window. w Specifies the window whose list…

XTextExtents, XTextExtents16, XQueryTextExtents, XQueryTextExtents16 – compute or query text extents Syntaxint XTextExtents(XFontStruct *font_struct, char *string, int nchars, int *direction_return, int *font_ascent_return, int *font_descent_return, XCharStruct *overall_return); int XTextExtents16(XFontStruct *font_struct, XChar2b *string, int nchars, int *direction_return, int *font_ascent_return, int *font_descent_return, XCharStruct *overall_return); int XQueryTextExtents(Display *display, XID font_ID, char *string, int nchars, int *direction_return, int *font_ascent_return, int *font_descent_return,…

XTextExtents, XTextExtents16, XQueryTextExtents, XQueryTextExtents16 – compute or query text extents Syntaxint XTextExtents(XFontStruct *font_struct, char *string, int nchars, int *direction_return, int *font_ascent_return, int *font_descent_return, XCharStruct *overall_return); int XTextExtents16(XFontStruct *font_struct, XChar2b *string, int nchars, int *direction_return, int *font_ascent_return, int *font_descent_return, XCharStruct *overall_return); int XQueryTextExtents(Display *display, XID font_ID, char *string, int nchars, int *direction_return, int *font_ascent_return, int *font_descent_return,…

XQueryPointer – get pointer coordinates SyntaxBool XQueryPointer(Display *display, Window w, Window *root_return, Window *child_return, int *root_x_return, int *root_y_return, int *win_x_return, int *win_y_return, unsigned int *mask_return);Argumentschild_return Returns the child window that the pointer is located in, if any. display Specifies the connection to the X server. mask_return Returns the current state of the modifier keys and…

XChangeKeyboardControl, XGetKeyboardControl, XAutoRepeatOn, XAutoRepeatOff, XBell, XQueryKeymap, XKeyboardControl – manipulate keyboard settings and keyboard control structure Syntaxint 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]);Argumentsdisplay Specifies the connection to the X server. keys_return Returns an array…

XLoadFont, XQueryFont, XLoadQueryFont, XFreeFont, XGetFontProperty, XUnloadFont, XCharStruct, XFontProp, XChar2b, XFontStruct – load or unload fonts and font metric structures SyntaxFont 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);Argumentsatom Specifies the atom…

XQueryExtension, XListExtensions, XFreeExtensionList – list available extensions SyntaxBool XQueryExtension(display, name, major_opcode_return, first_event_return, first_error_return) char **XListExtensions(display, nextensions_return) XFreeExtensionList(list)Argumentsdisplay Specifies the connection to the X server. name Specifies the extension name. major_opcode_return Returns the major opcode. first_event_return Returns the first event code, if any. first_error_return Returns the first error code, if any. nextensions_return Returns the number of…

XQueryDeviceState – query the state of an extension input device. Synopsis#include <X11/extensions/XInput.h>XDeviceState* XQueryDeviceState( Display *display, XDevice *device);display Specifies the connection to the X server.device Specifies the device whose state is to be queried.DescriptionThe XQueryDeviceState request queries the state of an input device. The current state of keys and buttons (up or down), and valuators (current…

XQueryColor, XQueryColors, XLookupColor, XParseColor – obtain color values Syntaxint XQueryColor(Display *display, Colormap colormap, XColor *def_in_out); int XQueryColors(Display *display, Colormap colormap, XColor defs_in_out[], int ncolors); Status XLookupColor(Display *display, Colormap colormap, char *color_name, XColor *exact_def_return, XColor *screen_def_return); Status XParseColor(Display *display, Colormap colormap, char *spec, XColor *exact_def_return);Argumentscolormap Specifies the colormap. color_name Specifies the color name string (for example,…

XQueryColor, XQueryColors, XLookupColor, XParseColor – obtain color values Syntaxint XQueryColor(Display *display, Colormap colormap, XColor *def_in_out); int XQueryColors(Display *display, Colormap colormap, XColor defs_in_out[], int ncolors); Status XLookupColor(Display *display, Colormap colormap, char *color_name, XColor *exact_def_return, XColor *screen_def_return); Status XParseColor(Display *display, Colormap colormap, char *spec, XColor *exact_def_return);Argumentscolormap Specifies the colormap. color_name Specifies the color name string (for example,…

XQueryBestSize, XQueryBestTile, XQueryBestStipple – determine efficient sizes SyntaxStatus XQueryBestSize(Display *display, int class, Drawable which_screen, unsigned int width, unsigned int height, unsigned int *width_return, unsigned int *height_return); Status XQueryBestTile(Display *display, Drawable which_screen, unsigned int width, unsigned int height, unsigned int *width_return, unsigned int *height_return); Status XQueryBestStipple(Display *display, Drawable which_screen, unsigned int width, unsigned int height, unsigned…

XQueryBestSize, XQueryBestTile, XQueryBestStipple – determine efficient sizes SyntaxStatus XQueryBestSize(Display *display, int class, Drawable which_screen, unsigned int width, unsigned int height, unsigned int *width_return, unsigned int *height_return); Status XQueryBestTile(Display *display, Drawable which_screen, unsigned int width, unsigned int height, unsigned int *width_return, unsigned int *height_return); Status XQueryBestStipple(Display *display, Drawable which_screen, unsigned int width, unsigned int height, unsigned…

XQueryBestSize, XQueryBestTile, XQueryBestStipple – determine efficient sizes SyntaxStatus XQueryBestSize(Display *display, int class, Drawable which_screen, unsigned int width, unsigned int height, unsigned int *width_return, unsigned int *height_return); Status XQueryBestTile(Display *display, Drawable which_screen, unsigned int width, unsigned int height, unsigned int *width_return, unsigned int *height_return); Status XQueryBestStipple(Display *display, Drawable which_screen, unsigned int width, unsigned int height, unsigned…

XRecolorCursor, XFreeCursor, XQueryBestCursor – manipulate cursors Syntaxint XRecolorCursor(Display *display, Cursor cursor, XColor *foreground_color, XColor *background_color); int XFreeCursor(Display *display, Cursor cursor); Status XQueryBestCursor(Display *display, Drawable d, unsigned int width, unsigned int height, unsigned int *width_return, unsigned int *height_return);Argumentsbackground_color Specifies the RGB values for the background of the source. cursor Specifies the cursor. d Specifies the drawable,…

XInitImage, XCreateImage, XGetPixel, XPutPixel, XSubImage, XAddPixel, XDestroyImage – image utilities SyntaxStatus 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 pixel);…

XPutImage, XGetImage, XGetSubImage – transfer images Syntaxint 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, int…