Modaldialog没有反应进入/ esc [英] Modaldialog doesn't react to enter/esc

问题描述

我有一个具有 OK 和取消按钮的modaldialog。对于 OK ，我将 Default 属性设置为True，对于取消按钮，取消属性。 ModalResult设置为 mrOK 和 mrCancel

但是，不要按键盘上的 Enter 或 Esc 键关闭对话框。我在这里错过了什么？

编辑

我发布了一个报告此信息

I have a modaldialog with an OK and a Cancel button. For the OK I set the Default property to True, and for the Cancel button the Cancel property. ModalResult is set to mrOK and mrCancel, resp.

However neither pressing the Enter nor the Esc key on my keyboard close the dialog. What did I miss here?

edit
I posted a small test application using the suspect dialog on my site. IDE is RAD Studio XE3.

解决方案

For the record, this should work. However, it seems that TSpinEdit has a bug. Since TSpinEdit is a sample (Vcl.Samples.Spin.pas, note the "Samples"), you can fix this yourself.

To TSpinEdit, add the following method declaration just following WMCut:

   procedure WMGetDlgCode(var Message: TWMGetDlgCode); message WM_GETDLGCODE;

Complete the class (Shift+Ctrl+C) and add the following code to WMGetDlgCode:

procedure TSpinEdit.WMGetDlgCode(var Message: TWMGetDlgCode);
begin
  inherited;
  Message.Result := Message.Result and not DLGC_WANTALLKEYS;
end;

That will tell VCL that the edit control doesn't want to process the Enter and Escape keys (VK_ENTER, VK_ESCAPE). Since it doesn't process the keys, they'll be forwarded to the buttons, which will then be invoked base on their settings (Default & Cancel).

Feel free to report this at Quality Central

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