Ultravnc viewer screen resolution

// Опубликовано: 24.01.2021 автор: Dot

ultravnc viewer screen resolution

The viewer window is automatically scaled to fit the size ofyour local screen. Note: Grey colors only works with 32 bits color screenresolution. jora.dllfileclub.com › docs › infrastructure › articles › mcu_using_vnc_kb_ When connecting to a headless/virtual Windows computer, you may notice that the list. FOOSE THUNDERBIRD

You can manual select a resolution you want. The viewer resolutions of all displays are send to the server 4. Extend display: an extra display s are added Use only virtual: The display is extended, but the server local displays are disabled 5. Allow multi monitor spanning: When you select 3 and 4 The fullscreen mode cover all your monitors. When not selected, fullscreen is on the selected monitor.

The viewer auto show the extended display. Sample usage: Assume you have a desktop PC with one screen let's say x and a laptop let's say x So you sit at your desk and work on the desktop machine and your laptop is just sitting on the desk and not being used. You can now start your laptop, put it next to your desktop screen.

Launch UVNC client on it, connect to your desktop extending the screen. Now your desktop has a virtual dual-screen setup with one x display and a x display. Save connection settings as default If checked, the current settings are saved as default optionsin a configuration file. So next time you run the viewer, youdon't have to reselect all your favorite settings. Further viewer configuration can be done when pressing the Options button. See Encodings section below.

Note: Grey colors only works with 32 bits color screenresolution. Mouse buttons Mouse cursor Display Miscellaneous. This is the number of times a reconnect is made before the viewer close the connection. The server supplies information in whatever format is desired by the client, in order to make the client as easy as possible to implement.

If the client represents itself as able to use multiple formats, the server will choose one. Pixel format refers to the representation of an individual pixel. The most common formats are 24 and 16 bit "true-color" values, and 8-bit "color map" representations, where an arbitrary map converts the color number to RGB values.

Encoding refers to how a rectangle of pixels are sent all pixel information in VNC is sent as rectangles. All rectangles come with a header giving the location and size of the rectangle and an encoding type used by the data which follows. These types are listed below. All clients are required to support this encoding type. Raw is also the fastest when the server and viewer are on the same machine, as the connection speed is essentially infinite and raw encoding minimizes processing time.

The Copy Rectangle encoding is efficient when something is being moved. The only data sent is the location of a rectangle from which data should be copied to the current location. Copyrect could also be used to efficiently transmit a repeated pattern. With this encoding, a sequence ofidentical pixels are compressed to a single value and repeat count.

In VNC, this is implemented with a background color, andthen specifications of an arbitrary number of sub rectangles andcolor for each. This is an efficient encoding for large blocks ofconstant color. This is a minor variation on RRE, using a maximum of xpixel rectangles. This allows for single-byte values to be used,reducing packet size. This is in general more efficient, because the savings from sending 1-byte values generally outweighs thel osses from the relatively rare cases where very large regionsare painted the same color.

Here, rectangles are split up in to 16x16 tiles, which aresent in a predetermined order. The data within the tiles is senteither raw or as a variant on RRE. Hextile encoding is usually the best choice for using in high-speed network environments e. Ethernet local-area networks. Zlib is a very simple encoding that uses zlib library tocompress raw pixel data.

This encoding achieves good compression, but consumes a lot of CPU time. Support for this encoding is provided for compatibility with VNC servers that might notunderstand Tight encoding which is more efficient than Zlib innearly all real-life situations. Like Zlib encoding, Tight encoding uses zlib library tocompress the pixel data, but it pre-processes data to maximizecompression ratios, and to minimize CPU usage on compression.

Also, JPEG compression may be used to encode color-rich screenareas see the description of -quality and -nojpeg optionsabove. Tight encoding is usually the best choice forlow-bandwidth network environments e. This means it favors speed over compression ratio. Toggle Full Screen Mode.

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