samples/dll/wx_exe.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx_exe.cpp
   3 // Purpose:     Sample showing how to use wx from a DLL
   4 // Author:      Vaclav Slavik
   5 // Created:     2009-12-03
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2009 Vaclav Slavik
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #include "wx/wxprec.h"
  20
  21 #ifdef __BORLANDC__
  22     #pragma hdrstop
  23 #endif
  24
  25 #include "my_dll.h"
  26
  27 #include "wx/app.h"
  28 #include "wx/frame.h"
  29 #include "wx/panel.h"
  30 #include "wx/sizer.h"
  31 #include "wx/stattext.h"
  32 #include "wx/button.h"
  33
  34
  35 // ----------------------------------------------------------------------------
  36 // GUI classes
  37 // ----------------------------------------------------------------------------
  38
  39 static const int ID_RUN_DLL = wxNewId();
  40
  41 class MainFrame : public wxFrame
  42 {
  43 public:
  44     MainFrame();
  45
  46     void OnRunDLL(wxCommandEvent& event);
  47
  48     DECLARE_EVENT_TABLE()
  49 };
  50
  51
  52 class MainApp : public wxApp
  53 {
  54 public:
  55     virtual bool OnInit();
  56     virtual int OnExit();
  57 };
  58
  59
  60 // ============================================================================
  61 // implementation
  62 // ============================================================================
  63
  64 // ----------------------------------------------------------------------------
  65 // MainFrame
  66 // ----------------------------------------------------------------------------
  67
  68 BEGIN_EVENT_TABLE(MainFrame, wxFrame)
  69     EVT_BUTTON(ID_RUN_DLL, MainFrame::OnRunDLL)
  70 END_EVENT_TABLE()
  71
  72 MainFrame::MainFrame()
  73     : wxFrame(NULL, wxID_ANY, "Main wx app",
  74               wxDefaultPosition, wxSize(400, 300))
  75 {
  76     wxPanel *p = new wxPanel(this, wxID_ANY);
  77     wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
  78
  79     sizer->Add
  80            (
  81                new wxStaticText
  82                    (
  83                        p, wxID_ANY,
  84                        wxString::Format
  85                        (
  86                            "Main wxApp instance is %p (%s),\n"
  87                            "thread ID %ld.\n",
  88                            wxApp::GetInstance(),
  89                            wxVERSION_STRING,
  90                            wxThread::GetCurrentId()
  91                        )
  92                    ),
  93                wxSizerFlags(1).Expand().Border(wxALL, 10)
  94            );
  95
  96     sizer->Add
  97            (
  98                new wxButton(p, ID_RUN_DLL, "Run GUI from DLL"),
  99                wxSizerFlags(0).Right().Border(wxALL, 10)
 100            );
 101
 102     p->SetSizerAndFit(sizer);
 103
 104     wxSizer *fsizer = new wxBoxSizer(wxVERTICAL);
 105     fsizer->Add(p, wxSizerFlags(1).Expand());
 106     SetSizerAndFit(fsizer);
 107 }
 108
 109 void MainFrame::OnRunDLL(wxCommandEvent& WXUNUSED(event))
 110 {
 111     run_wx_gui_from_dll("child instance");
 112 }
 113
 114
 115 // ----------------------------------------------------------------------------
 116 // MainApp
 117 // ----------------------------------------------------------------------------
 118
 119 bool MainApp::OnInit()
 120 {
 121     if ( !wxApp::OnInit() )
 122         return false;
 123
 124     wxFrame *f = new MainFrame();
 125     f->Show(true);
 126
 127     return true;
 128 }
 129
 130 int MainApp::OnExit()
 131 {
 132     wx_dll_cleanup();
 133     return wxApp::OnExit();
 134 }
 135
 136
 137 IMPLEMENT_APP(MainApp)