[r10156]: incubator / ooConsole / examples / scrollScreenBuffer.rex  Maximize  Restore  History

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/*----------------------------------------------------------------------------*/
/* */
/* Copyright (c) 2014-2014 Rexx Language Association. All rights reserved. */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the Common Public License v1.0 which accompanies this */
/* distribution. A copy is also available at the following address: */
/* http://www.oorexx.org/license.html */
/* */
/* Redistribution and use in source and binary forms, with or */
/* without modification, are permitted provided that the following */
/* conditions are met: */
/* */
/* Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* Redistributions in binary form must reproduce the above copyright */
/* notice, this list of conditions and the following disclaimer in */
/* the documentation and/or other materials provided with the distribution. */
/* */
/* Neither the name of Rexx Language Association nor the names */
/* of its contributors may be used to endorse or promote products */
/* derived from this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS */
/* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
/* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */
/* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY */
/* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* */
/*----------------------------------------------------------------------------*/
/** scrollScreenBuffer.rex
*
* This example is a direct copy of a C++ example from the MSDN library. It
* scrolls the bottom 15 lines of the display window up 15 lines.
*/
say .endOfLine"Printing 20 lines for reference. " || -
"Notice that line 6 is discarded during scrolling.".endOfLine
do i = 1 while i <= 20
say i
end
j = SysSleep(4)
stdOut = .StdOutput~new
if stdOut == .nil then do
say "Failed to get StdOuput object. ErrRC:" stOut~ErrRC
return
end
-- Get the screen buffer size.
csbiInfo = stdOut~getScreenBufferInfo
if csbiInfo == .nil then do
say "getScreenBufferInfo() failed:" stdOut~ErrRC
return
end
-- The scrolling rectangle is the bottom 15 rows of the
-- display window.
scrollRect = .Rect~new(0, csbiInfo~windowRect~Bottom - 15, csbiInfo~windowRect~Right, csbiInfo~windowRect~Bottom - 1)
-- The destination for the scroll rectangle is one row up.
coordDest = .Point~new(0, csbiInfo~windowRect~Bottom - 16)
-- The clipping rectangle is the same as the scrolling rectangle.
clipRect = scrollRect
-- Fill the bottom row with green blanks.
fill = .CharInfo~from(' ', "BgGreen FgRed")
-- Scroll up one line.
if \ stdout~scrollScreenBuffer(scrollRect, coordDest, fill, clipRect) then do
say "scrollScreenBuffer() failed:" stdOut~ErrRC
return;
end
::requires "ooConsole.cls"

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