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https://gitlab.com/freepascal.org/lazarus/lazarus.git
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92 lines
2.3 KiB
ObjectPascal
92 lines
2.3 KiB
ObjectPascal
{ Copyright (C) 2004 Olivier GUILBAUD
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This library is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
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for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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}
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unit lr_fpc;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils,Graphics,LCLType,LCLIntf;
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function CopyPalette(Source: hPalette): hPalette;
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procedure Frame3D(Canvas: TCanvas; var Rect: TRect; TopColor, BottomColor: TColor; Width: Integer);
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implementation
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function CopyPalette(Source: hPalette): hPalette;
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var
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LP: ^TLogPalette;
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NumEntries: integer;
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begin
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Result := 0;
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GetMem(LP, Sizeof(TLogPalette) + 256*Sizeof(TPaletteEntry));
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try
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with LP^ do
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begin
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palVersion := $300;
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palNumEntries := 256;
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NumEntries := GetPaletteEntries(Source, 0, 256, palPalEntry);
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if NumEntries > 0 then
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begin
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palNumEntries := NumEntries;
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Result := CreatePalette(LP^);
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end;
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end;
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finally
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FreeMem(LP, Sizeof(TLogPalette) + 256*Sizeof(TPaletteEntry));
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end;
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end;
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procedure Frame3D(Canvas: TCanvas; var Rect: TRect; TopColor, BottomColor: TColor; Width: Integer);
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procedure DoRect;
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var
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TopRight, BottomLeft: TPoint;
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begin
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with Canvas, Rect do
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begin
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TopRight.X := Right;
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TopRight.Y := Top;
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BottomLeft.X := Left;
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BottomLeft.Y := Bottom;
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Pen.Color := TopColor;
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PolyLine([BottomLeft, TopLeft, TopRight]);
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Pen.Color := BottomColor;
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Dec(BottomLeft.X);
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PolyLine([TopRight, BottomRight, BottomLeft]);
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end;
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end;
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begin
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Canvas.Pen.Width := 1;
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Dec(Rect.Bottom);
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Dec(Rect.Right);
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while Width > 0 do
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begin
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Dec(Width);
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DoRect;
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InflateRect(Rect, -1, -1);
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end;
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Inc(Rect.Bottom);
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Inc(Rect.Right);
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end;
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end.
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