NumberEntryDialog.cpp

#include <wx/app.h>
#include <wx/button.h>
#include <wx/frame.h>
#include <wx/numdlg.h>
#include <wx/panel.h>
#include <wx/stattext.h>

namespace NumberEntryDialogExample {
  class Frame : public wxFrame {
  public:
    Frame() : wxFrame {nullptr, wxID_ANY, "NumberEntryDialog example"} {
      button->Bind(wxEVT_BUTTON, [&](wxCommandEvent& event) {
        label->SetLabel("Number = ");
        auto dialog = wxNumberEntryDialog {this, "Message text", "Prompt text", "Caption text", 50, 10, 100};
        if (dialog.ShowModal() == wxID_OK)
          label->SetLabel(wxString::Format("Number = %ld", dialog.GetValue()));
      });
    }
    
  private:
    wxPanel* panel = new wxPanel {this};
    wxButton* button = new wxButton {panel, wxID_ANY, "Number...", {10, 10}};
    wxStaticText* label = new wxStaticText {panel, wxID_ANY, "Number = ", {10, 50}};
  };

  class Application : public wxApp {
    auto OnInit() -> bool override {return (new Frame)->Show();}
  };
}

wxIMPLEMENT_APP(NumberEntryDialogExample::Application);