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Functions
GdkDisplay * | gdk_monitor_get_display () |
void | gdk_monitor_get_geometry () |
void | gdk_monitor_get_workarea () |
int | gdk_monitor_get_width_mm () |
int | gdk_monitor_get_height_mm () |
const char * | gdk_monitor_get_manufacturer () |
const char * | gdk_monitor_get_model () |
int | gdk_monitor_get_scale_factor () |
int | gdk_monitor_get_refresh_rate () |
GdkSubpixelLayout | gdk_monitor_get_subpixel_layout () |
gboolean | gdk_monitor_is_primary () |
Properties
GdkDisplay * | display | Read / Write / Construct Only |
GdkRectangle * | geometry | Read |
int | height-mm | Read |
char * | manufacturer | Read |
char * | model | Read |
int | refresh-rate | Read |
int | scale-factor | Read |
GdkSubpixelLayout | subpixel-layout | Read |
int | width-mm | Read |
GdkRectangle * | workarea | Read |
Description
GdkMonitor objects represent the individual outputs that are
associated with a GdkDisplay. GdkDisplay has APIs to enumerate
monitors with gdk_display_get_n_monitors()
and gdk_display_get_monitor()
, and
to find particular monitors with gdk_display_get_primary_monitor()
or
gdk_display_get_monitor_at_window()
.
GdkMonitor was introduced in GTK+ 3.22 and supersedes earlier APIs in GdkScreen to obtain monitor-related information.
Functions
gdk_monitor_get_display ()
GdkDisplay *
gdk_monitor_get_display (GdkMonitor *monitor
);
Gets the display that this monitor belongs to.
Since: 3.22
gdk_monitor_get_geometry ()
void gdk_monitor_get_geometry (GdkMonitor *monitor
,GdkRectangle *geometry
);
Retrieves the size and position of an individual monitor within the
display coordinate space. The returned geometry is in ”application pixels”,
not in ”device pixels” (see gdk_monitor_get_scale_factor()
).
Since: 3.22
gdk_monitor_get_workarea ()
void gdk_monitor_get_workarea (GdkMonitor *monitor
,GdkRectangle *workarea
);
Retrieves the size and position of the “work area” on a monitor
within the display coordinate space. The returned geometry is in
”application pixels”, not in ”device pixels” (see
gdk_monitor_get_scale_factor()
).
The work area should be considered when positioning menus and similar popups, to avoid placing them below panels, docks or other desktop components.
Note that not all backends may have a concept of workarea. This function will return the monitor geometry if a workarea is not available, or does not apply.
Since: 3.22
gdk_monitor_get_width_mm ()
int
gdk_monitor_get_width_mm (GdkMonitor *monitor
);
Gets the width in millimeters of the monitor.
Since: 3.22
gdk_monitor_get_height_mm ()
int
gdk_monitor_get_height_mm (GdkMonitor *monitor
);
Gets the height in millimeters of the monitor.
Since: 3.22
gdk_monitor_get_manufacturer ()
const char *
gdk_monitor_get_manufacturer (GdkMonitor *monitor
);
Gets the name or PNP ID of the monitor's manufacturer, if available.
Note that this value might also vary depending on actual display backend.
PNP ID registry is located at https://uefi.org/pnp_id_list
gdk_monitor_get_model ()
const char *
gdk_monitor_get_model (GdkMonitor *monitor
);
Gets the a string identifying the monitor model, if available.
gdk_monitor_get_scale_factor ()
int
gdk_monitor_get_scale_factor (GdkMonitor *monitor
);
Gets the internal scale factor that maps from monitor coordinates to the actual device pixels. On traditional systems this is 1, but on very high density outputs this can be a higher value (often 2).
This can be used if you want to create pixel based data for a
particular monitor, but most of the time you’re drawing to a window
where it is better to use gdk_window_get_scale_factor()
instead.
Since: 3.22
gdk_monitor_get_refresh_rate ()
int
gdk_monitor_get_refresh_rate (GdkMonitor *monitor
);
Gets the refresh rate of the monitor, if available.
The value is in milli-Hertz, so a refresh rate of 60Hz is returned as 60000.
Since: 3.22
gdk_monitor_get_subpixel_layout ()
GdkSubpixelLayout
gdk_monitor_get_subpixel_layout (GdkMonitor *monitor
);
Gets information about the layout of red, green and blue primaries for each pixel in this monitor, if available.
Since: 3.22
gdk_monitor_is_primary ()
gboolean
gdk_monitor_is_primary (GdkMonitor *monitor
);
Gets whether this monitor should be considered primary
(see gdk_display_get_primary_monitor()
).
Since: 3.22
Types and Values
enum GdkSubpixelLayout
This enumeration describes how the red, green and blue components of physical pixels on an output device are laid out.
Members
The layout is not known |
||
Not organized in this way |
||
The layout is horizontal, the order is RGB |
||
The layout is horizontal, the order is BGR |
||
The layout is vertical, the order is RGB |
||
The layout is vertical, the order is BGR |
Since: 3.22
Property Details
The “display”
property
“display” GdkDisplay *
The display of the monitor.
Owner: GdkMonitor
Flags: Read / Write / Construct Only
The “geometry”
property
“geometry” GdkRectangle *
The geometry of the monitor.
Owner: GdkMonitor
Flags: Read
The “height-mm”
property
“height-mm” int
The height of the monitor, in millimeters.
Owner: GdkMonitor
Flags: Read
Allowed values: >= 0
Default value: 0
The “manufacturer”
property
“manufacturer” char *
The manufacturer name.
Owner: GdkMonitor
Flags: Read
Default value: NULL
The “model”
property
“model” char *
The model name.
Owner: GdkMonitor
Flags: Read
Default value: NULL
The “refresh-rate”
property
“refresh-rate” int
The refresh rate, in millihertz.
Owner: GdkMonitor
Flags: Read
Allowed values: >= 0
Default value: 0
The “scale-factor”
property
“scale-factor” int
The scale factor.
Owner: GdkMonitor
Flags: Read
Allowed values: >= 0
Default value: 1
The “subpixel-layout”
property
“subpixel-layout” GdkSubpixelLayout
The subpixel layout.
Owner: GdkMonitor
Flags: Read
Default value: GDK_SUBPIXEL_LAYOUT_UNKNOWN
The “width-mm”
property
“width-mm” int
The width of the monitor, in millimeters.
Owner: GdkMonitor
Flags: Read
Allowed values: >= 0
Default value: 0
The “workarea”
property
“workarea” GdkRectangle *
The workarea of the monitor.
Owner: GdkMonitor
Flags: Read
Signal Details
The “invalidate”
signal
void user_function (GdkMonitor *gdkmonitor, gpointer user_data)
Flags: Run First