代码文件:
unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, CheckLst; type TForm1 = class(TForm) CheckListBox1: TCheckListBox; procedure FormPaint(Sender: TObject); procedure FormCreate(Sender: TObject); procedure CheckListBox1Click(Sender: TObject); end; var Form1: TForm1; implementation {$R *.dfm} uses GDIPOBJ, GDIPAPI; var fs: Integer; procedure TForm1.CheckListBox1Click(Sender: TObject); const fsArr: array[0..5] of Integer = (FontStyleRegular, FontStyleBold, FontStyleItalic, FontStyleBoldItalic, FontStyleUnderline, FontStyleStrikeout); var i: Integer; begin fs := 0; for i := 0 to CheckListBox1.Items.Count - 1 do if CheckListBox1.Checked[i] then fs := fs or fsArr[i]; Repaint; end; procedure TForm1.FormCreate(Sender: TObject); begin CheckListBox1.Align := alLeft; CheckListBox1.Items.CommaText := 'FontStyleRegular,' + 'FontStyleBold,' + 'FontStyleItalic,' + 'FontStyleBoldItalic,' + 'FontStyleUnderline,' + 'FontStyleStrikeout'; CheckListBox1.Checked[0] := True; end; procedure TForm1.FormPaint(Sender: TObject); var g: TGPGraphics; sb: TGPSolidBrush; font: TGPFont; begin g := TGPGraphics.Create(Canvas.Handle); sb := TGPSolidBrush.Create(aclRed); font := TGPFont.Create('微软雅黑', 50, fs); g.DrawString('Delphi', -1, font, MakePoint(CheckListBox1.Width + 0.0, 0), sb); font.Free; sb.Free; g.Free; end; end.窗体文件:
object Form1: TForm1 Left = 0 Top = 0 Caption = 'Form1' ClientHeight = 98 ClientWidth = 367 Color = clBtnFace Font.Charset = DEFAULT_CHARSET Font.Color = clWindowText Font.Height = -11 Font.Name = 'Tahoma' Font.Style = [] OldCreateOrder = False Position = poDesktopCenter OnCreate = FormCreate OnPaint = FormPaint PixelsPerInch = 96 TextHeight = 13 object CheckListBox1: TCheckListBox Left = 8 Top = 8 Width = 113 Height = 148 ItemHeight = 13 TabOrder = 0 OnClick = CheckListBox1Click end end文本样式的定义:
FontStyle = Integer; const FontStyleRegular = Integer(0); {普通文本} FontStyleBold = Integer(1); {加粗文本} FontStyleItalic = Integer(2); {倾斜文本} FontStyleBoldItalic = Integer(3); {加粗并倾斜文本} FontStyleUnderline = Integer(4); {带下划线的文本} FontStyleStrikeout = Integer(8); {中间有直线通过的文本} Type TFontStyle = FontStyle;