KPrevF.pas
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上传用户:fh681027
上传日期:2022-07-23
资源大小:1959k
文件大小:1k
源码类别:
Delphi控件源码
开发平台:
Delphi
- unit KPrevF;
- interface
- uses
- Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
- StdCtrls, ExtCtrls;
- type
- TForm1 = class(TForm)
- RadioPreview: TRadioGroup;
- Edit1: TEdit;
- Edit2: TEdit;
- Edit3: TEdit;
- procedure RadioPreviewClick(Sender: TObject);
- procedure FormKeyPress(Sender: TObject; var Key: Char);
- private
- { Private declarations }
- public
- { Public declarations }
- end;
- var
- Form1: TForm1;
- implementation
- {$R *.DFM}
- procedure TForm1.RadioPreviewClick(Sender: TObject);
- begin
- KeyPreview := RadioPreview.ItemIndex <> 0;
- end;
- procedure TForm1.FormKeyPress(Sender: TObject; var Key: Char);
- begin
- case RadioPreview.ItemIndex of
- 1: // Enter = Tab
- if Key = #13 then
- begin
- Key := #0;
- Perform (CM_DialogKey, VK_TAB, 0);
- end;
- 2: // Type in Caption
- begin
- if Key = #8 then // backspace: remove last char
- Caption := Copy (Caption, 1,
- Length (Caption) - 1)
- else if Key = #13 then // enter: stop operation
- RadioPreview.ItemIndex := 0
- else // anything else: add character
- Caption := Caption + Key;
- Key := #0;
- end;
- 3: // Skip vowels
- if Key in ['a', 'e', 'i', 'o', 'u',
- 'A', 'E', 'I', 'O', 'U'] then
- Key := #0;
- end;
- end;
- end.