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  • 创建异形窗口[3]

    本例效果图:



    代码文件:
    unit Unit1;
    
    interface
    
    uses
      Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
      Dialogs, StdCtrls;
    
    type
      TForm1 = class(TForm)
        Button1: TButton;
        procedure Button1Click(Sender: TObject);
        procedure FormDblClick(Sender: TObject);
      end;
    
    var
      Form1: TForm1;
    
    implementation
    
    {$R *.dfm}
    
    procedure TForm1.Button1Click(Sender: TObject);
    var
      rgn: HRGN;
    begin
      BeginPath(Canvas.Handle);
      SetBKMode(Canvas.Handle, TRANSPARENT);
      Canvas.Font.Size := 56;
      Canvas.Font.Style := [fsBold];
      Canvas.TextOut(12, 12, 'Delphi');
      EndPath(Canvas.Handle);
      rgn := PathToRegion(Canvas.Handle);
      Self.Color := clRed;
      SetWindowRgn(Handle, rgn, True);
    end;
    
    procedure TForm1.FormDblClick(Sender: TObject);
    begin
      Close;
    end;
    
    end.
    
    窗体文件:
    object Form1: TForm1
      Left = 0
      Top = 0
      Caption = 'Form1'
      ClientHeight = 206
      ClientWidth = 339
      Color = clBtnFace
      Font.Charset = DEFAULT_CHARSET
      Font.Color = clWindowText
      Font.Height = -11
      Font.Name = 'Tahoma'
      Font.Style = []
      OldCreateOrder = False
      OnDblClick = FormDblClick
      PixelsPerInch = 96
      TextHeight = 13
      object Button1: TButton
        Left = 136
        Top = 112
        Width = 75
        Height = 25
        Caption = 'Button1'
        TabOrder = 0
        OnClick = Button1Click
      end
    end
    
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  • 原文地址:https://www.cnblogs.com/del/p/1178022.html
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