Modern Tui TuiScreen BeginFrame

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TuiScreen.BeginFrame

Clears the back buffer and returns the frame to draw into.

Syntax

TuiScreen.BeginFrame( ) as TuiFrame ptr

Description

Clears the back buffer and returns the frame to draw into. Everything you want on screen must be drawn again -- that is the immediate-mode bargain.

Example

#import "std/tui"
using tui

dim as TuiScreen scr
scr.Resize( 12, 3 )
dim as TuiFrame ptr f = scr.BeginFrame( )
f->DrawText( 0, 0, "one", TuiStyleDefault( ) )
scr.Render( TUIDEPTH_ANSI16 )

'' a NEW frame starts blank: "one" is gone unless drawn again
f = scr.BeginFrame( )
print len( scr.Render( TUIDEPTH_ANSI16 ) ) > 0 '' -1 (true)  -- it was erased

See also

TuiCell	TuiCell.Equals	TuiBuffer	TuiBuffer.Clear	TuiBuffer.At	TuiFrame
TuiCell.SetChar	TuiCellBlank	TuiBuffer.Resize	TuiBuffer.InBounds	TuiBuffer.Count	TuiFrame.Area

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Library: Terminal TUI Library
Category: Terminal TUI Library
Documented under: Buffer and Frame
Working examples: hello.tiko · form.tiko · dashboard.tiko

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