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 #ifndef __WINDOWS__
  35     #error "This sample is Windows-only"
  36 #endif
  37
  38 #ifdef WXUSINGDLL
  39     #error "This sample doesn't work with DLL build of wxWidgets"
  40 #endif
  41
  42 // ----------------------------------------------------------------------------
  43 // GUI classes
  44 // ----------------------------------------------------------------------------
  45
  46 static const int ID_RUN_DLL = wxNewId();
  47
  48 class MainFrame : public wxFrame
  49 {
  50 public:
  51     MainFrame();
  52
  53     void OnRunDLL(wxCommandEvent& event);
  54
  55     DECLARE_EVENT_TABLE()
  56 };
  57
  58
  59 class MainApp : public wxApp
  60 {
  61 public:
  62     virtual bool OnInit();
  63     virtual int OnExit();
  64 };
  65
  66
  67 // ============================================================================
  68 // implementation
  69 // ============================================================================
  70
  71 // ----------------------------------------------------------------------------
  72 // MainFrame
  73 // ----------------------------------------------------------------------------
  74
  75 BEGIN_EVENT_TABLE(MainFrame, wxFrame)
  76     EVT_BUTTON(ID_RUN_DLL, MainFrame::OnRunDLL)
  77 END_EVENT_TABLE()
  78
  79 MainFrame::MainFrame()
  80     : wxFrame(NULL, wxID_ANY, "Main wx app",
  81               wxDefaultPosition, wxSize(400, 300))
  82 {
  83     wxPanel *p = new wxPanel(this, wxID_ANY);
  84     wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
  85
  86     sizer->Add
  87            (
  88                new wxStaticText
  89                    (
  90                        p, wxID_ANY,
  91                        wxString::Format
  92                        (
  93                            "Main wxApp instance is %p (%s),\n"
  94                            "thread ID %ld.\n",
  95                            wxApp::GetInstance(),
  96                            wxVERSION_STRING,
  97                            wxThread::GetCurrentId()
  98                        )
  99                    ),
 100                wxSizerFlags(1).Expand().Border(wxALL, 10)
 101            );
 102
 103     sizer->Add
 104            (
 105                new wxButton(p, ID_RUN_DLL, "Run GUI from DLL"),
 106                wxSizerFlags(0).Right().Border(wxALL, 10)
 107            );
 108
 109     p->SetSizerAndFit(sizer);
 110
 111     wxSizer *fsizer = new wxBoxSizer(wxVERTICAL);
 112     fsizer->Add(p, wxSizerFlags(1).Expand());
 113     SetSizerAndFit(fsizer);
 114 }
 115
 116 void MainFrame::OnRunDLL(wxCommandEvent& WXUNUSED(event))
 117 {
 118     run_wx_gui_from_dll("child instance");
 119 }
 120
 121
 122 // ----------------------------------------------------------------------------
 123 // MainApp
 124 // ----------------------------------------------------------------------------
 125
 126 bool MainApp::OnInit()
 127 {
 128     if ( !wxApp::OnInit() )
 129         return false;
 130
 131     wxFrame *f = new MainFrame();
 132     f->Show(true);
 133
 134     return true;
 135 }
 136
 137 int MainApp::OnExit()
 138 {
 139     wx_dll_cleanup();
 140     return wxApp::OnExit();
 141 }
 142
 143
 144 IMPLEMENT_APP(MainApp)