rofi/include/x11-helper.h

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#ifndef __X11_HELPER_H__
#define __X11_HELPER_H__
int window_get_prop ( Display *display, Window w, Atom prop,
Atom *type, int *items,
void *buffer, unsigned int bytes ) __attribute__ ( ( nonnull ( 4, 5 ) ) );
/**
* @param display Connection to the X server.
* @param w The Window to read property from.
* @param atom The property identifier
*
* Get text property defined by atom from window.
* Support utf8.
*
* @returns a newly allocated string with the result or NULL
*/
char* window_get_text_prop ( Display *display, Window w, Atom atom );
int window_get_atom_prop ( Display *display, Window w, Atom atom, Atom *list, int count );
void window_set_atom_prop ( Display *display, Window w, Atom prop, Atom *atoms, int count );
int window_get_cardinal_prop ( Display *display, Window w, Atom atom, unsigned long *list, int count );
/**
* Window info.
*/
#define ATOM_ENUM( x ) x
#define ATOM_CHAR( x ) # x
// usable space on a monitor
#define EWMH_ATOMS( X ) \
X ( _NET_CLIENT_LIST_STACKING ), \
X ( _NET_NUMBER_OF_DESKTOPS ), \
X ( _NET_CURRENT_DESKTOP ), \
X ( _NET_ACTIVE_WINDOW ), \
X ( _NET_WM_NAME ), \
X ( _NET_WM_STATE ), \
X ( _NET_WM_STATE_SKIP_TASKBAR ), \
X ( _NET_WM_STATE_SKIP_PAGER ), \
X ( _NET_WM_STATE_ABOVE ), \
X ( _NET_WM_DESKTOP ), \
X ( CLIPBOARD ), \
X ( UTF8_STRING ), \
X ( _NET_WM_WINDOW_OPACITY )
enum { EWMH_ATOMS ( ATOM_ENUM ), NUM_NETATOMS };
extern const char *netatom_names[];
extern Atom netatoms[NUM_NETATOMS];
typedef struct
{
int x, y, w, h;
int l, r, t, b;
} workarea;
void monitor_active ( Display *display, workarea *mon );
int window_send_message ( Display *display, Window target, Window subject,
Atom atom, unsigned long protocol,
unsigned long mask, Time time );
// find the dimensions of the monitor displaying point x,y
void monitor_dimensions ( Display *display, Screen *screen, int x, int y, workarea *mon );
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/**
* @param display The display.
*
* Release keyboard.
*/
void release_keyboard ( Display *display );
/**
* @param display The display.
* @param w Window we want to grab keyboard on.
*
* Grab keyboard and mouse.
*
* @return 1 when keyboard is grabbed, 0 not.
*/
int take_keyboard ( Display *display, Window w );
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/**
* @param display Connection to the X server.
* @param modmask Modifier mask.
* @param key Key.
*
* Grab key on display.
*/
void x11_grab_key ( Display *display, unsigned int modmask, KeySym key );
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/**
* @param combo String representing the key combo
* @param mod [out] The modifier specified (or AnyModifier if not specified)
* @param key [out] The key specified
*
* Parse key from user input string.
*/
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void x11_parse_key ( char *combo, unsigned int *mod, KeySym *key );
/**
* @param display The connection to the X server.
* @param box The window to set the opacity on.
* @param opacity The opacity value. (0-100)
*
* Set the opacity of the window and sub-windows.
*/
void x11_set_window_opacity ( Display *display, Window box, unsigned int opacity );
/**
* Setup several items required.
* * Error handling,
* * Numlock detection
* * Cache
*/
void x11_setup ( Display *display );
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/**
* @param display Connection to the X server.
*
* This function tries to create a 32bit TrueColor colormap.
* If this fails, it falls back to the default for the connected display.
*/
void create_visual_and_colormap ( Display *display );
/**
* @param display Connection to the X server.
* @param name String representing the color.
*
* Allocate a pixel value for an X named color
*/
unsigned int color_get ( Display *display, const char *const name );
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#endif