IGDI+是一个免费开源封装微软GDI+功能的Delphi库,该库使得可以用Delphi语言代码快速简短的实现复杂GDI+应用程序。官方网站:http://www.mitov.com/html/igdi_.htmlSourceForge:https://sourceforge.net/projects/igdiplus/
安装方法:1.首先下载目前最新版的IGDI+,解压到任意目录下,这里我解压到D盘;2.打开Delphi 7→Tools→Environment Options→Library→Library path,然后点击右边的“...”,添加IGDI+的目录路径,确定完成,如下图所示:
如要在程序中使用IGDI+的话1.首先在单元头uses内包含IGDIPlus,如:uses IGDIPlus;2.在窗体的OnPaint事件中,添加如下测试代码:
procedure TForm1.FormPaint(Sender: TObject); var AGraphics: IGPGraphics; APen: IGPPen; AFont: IGPFont; ABrush: IGPSolidBrush; rc: TPoint; begin AGraphics := TGPGraphics.Create(Canvas); AGraphics.SmoothingMode := SmoothingModeAntiAlias; //指定平滑(抗锯齿) AGraphics.TextRenderingHint := TextRenderingHintAntiAlias; //指定使用过程中呈现的文本采用反走样 APen := TGPPen.Create( $FF000000, 3); AGraphics.DrawLine(APen, 5, 5, 100, 100); APen.Color := $FF0000FF; APen.Width := 2; AGraphics.DrawEllipse(APen, 120, 5, 100, 100); Canvas.Font. Name := '微软雅黑'; Canvas.Font.Size := 13; AFont := TGPFont.Create(Canvas.Handle); ABrush := TGPSolidBrush.Create( $FFFF0000); rc.X := 10; rc.Y := 150; AGraphics.DrawString( '无幻博客'+# 13# 10+ 'http://blog.csdn.net/akof1314',AFont,rc,ABrush); end;3.运行结果如下图所示:
IGDI+库下载:地址一:http://www.mitov.com/IGDIPlus.zip地址二:http://download.csdn.net/source/3039922