DatePickerCtrl.cpp

#include <wx/app.h>
#include <wx/datectrl.h>
#include <wx/dateevt.h>
#include <wx/frame.h>
#include <wx/panel.h>
#include <wx/stattext.h>

namespace DatePickerCtrlExample {
  class Frame : public wxFrame {
  public:
    Frame() : wxFrame {nullptr, wxID_ANY, "DatePickerCtrl example"} {
      datePicker1->SetRange({4, wxDateTime::Apr, 1975},wxDateTime::Now());
      datePicker1->SetValue({4, wxDateTime::Apr, 1975});
      datePicker1->Bind(wxEVT_DATE_CHANGED, [&](wxDateEvent& event) {
        staticText1->SetLabelText(datePicker1->GetValue().FormatDate());
      });
      staticText1->SetLabelText(datePicker1->GetValue().FormatDate());
    }
    
  private:
    wxPanel* panel = new wxPanel {this};
    wxDatePickerCtrl* datePicker1 = new wxDatePickerCtrl {panel, wxID_ANY, wxDefaultDateTime, {30, 30}, wxDefaultSize, wxDP_DROPDOWN | wxDP_SHOWCENTURY};
    wxStaticText* staticText1 = new wxStaticText {panel, wxID_ANY, wxEmptyString, {30, 70}};
  };

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

wxIMPLEMENT_APP(DatePickerCtrlExample::Application);