{"name":"dev.flush","title":"Hold or Flush Output on an On-Screen Graphics Device.","pagetitle":"Hold or Flush Output on an On-Screen Graphics Device. — dev.flush","aliases":["dev.hold","dev.flush"],"author":[],"keywords":" dplot ","description":"

This gives a way to hold/flush output on certain on-screen devices,\n and is ignored by other devices.

","usage":"dev.hold(level = 1L)\ndev.flush(level = 1L)","arguments":[{"name":"level","description":"

Integer >= 0. The amount by which to change the hold\n level. Negative values will be silently replaced by zero.

"}],"has_args":true,"sections":[],"details":"

Devices which implement this maintain a stack of hold levels: calling\n dev.hold increases the level and dev.flush decreases it.\n Calling dev.hold when the hold level is zero increases the hold\n level and inhibits graphics display. When calling dev.flush\n clears all pending holds the screen display is refreshed and normal\n operation is resumed.

This is implemented for the cairo-based X11 types\n with buffering. When the hold level is positive the ‘watch’\n cursor is set on the device's window.

It is available on the quartz device on macOS.

This is implemented for the windows device with\n buffering selected (the default). When the hold level is positive the\n ‘busy’ cursor is set on the device's window.

","value":"

The current level after the change, invisibly. This is 0 on\n devices where hold levels are not supported.

","package":{"package":"grDevices","version":"3.5.0"}}

Description

Usage

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Details