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 // Copyright:   (c) 2009 Vaclav Slavik
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // ============================================================================
  11 // declarations
  12 // ============================================================================
  13
  14 // ----------------------------------------------------------------------------
  15 // headers
  16 // ----------------------------------------------------------------------------
  17
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24 #include "my_dll.h"
  25
  26 #include "wx/app.h"
  27 #include "wx/frame.h"
  28 #include "wx/panel.h"
  29 #include "wx/sizer.h"
  30 #include "wx/stattext.h"
  31 #include "wx/button.h"
  32
  33 #ifndef __WINDOWS__
  34     #error "This sample is Windows-only"
  35 #endif
  36
  37 #ifdef WXUSINGDLL
  38     #error "This sample doesn't work with DLL build of wxWidgets"
  39 #endif
  40
  41 // ----------------------------------------------------------------------------
  42 // GUI classes
  43 // ----------------------------------------------------------------------------
  44
  45 static const int ID_RUN_DLL = wxNewId();
  46
  47 class MainFrame : public wxFrame
  48 {
  49 public:
  50     MainFrame();
  51
  52     void OnRunDLL(wxCommandEvent& event);
  53
  54     DECLARE_EVENT_TABLE()
  55 };
  56
  57
  58 class MainApp : public wxApp
  59 {
  60 public:
  61     virtual bool OnInit();
  62     virtual int OnExit();
  63 };
  64
  65
  66 // ============================================================================
  67 // implementation
  68 // ============================================================================
  69
  70 // ----------------------------------------------------------------------------
  71 // MainFrame
  72 // ----------------------------------------------------------------------------
  73
  74 BEGIN_EVENT_TABLE(MainFrame, wxFrame)
  75     EVT_BUTTON(ID_RUN_DLL, MainFrame::OnRunDLL)
  76 END_EVENT_TABLE()
  77
  78 MainFrame::MainFrame()
  79     : wxFrame(NULL, wxID_ANY, "Main wx app",
  80               wxDefaultPosition, wxSize(400, 300))
  81 {
  82     wxPanel *p = new wxPanel(this, wxID_ANY);
  83     wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
  84
  85     sizer->Add
  86            (
  87                new wxStaticText
  88                    (
  89                        p, wxID_ANY,
  90                        wxString::Format
  91                        (
  92                            "Main wxApp instance is %p (%s),\n"
  93                            "thread ID %ld.\n",
  94                            wxApp::GetInstance(),
  95                            wxVERSION_STRING,
  96                            wxThread::GetCurrentId()
  97                        )
  98                    ),
  99                wxSizerFlags(1).Expand().Border(wxALL, 10)
 100            );
 101
 102     sizer->Add
 103            (
 104                new wxButton(p, ID_RUN_DLL, "Run GUI from DLL"),
 105                wxSizerFlags(0).Right().Border(wxALL, 10)
 106            );
 107
 108     p->SetSizerAndFit(sizer);
 109
 110     wxSizer *fsizer = new wxBoxSizer(wxVERTICAL);
 111     fsizer->Add(p, wxSizerFlags(1).Expand());
 112     SetSizerAndFit(fsizer);
 113 }
 114
 115 void MainFrame::OnRunDLL(wxCommandEvent& WXUNUSED(event))
 116 {
 117     run_wx_gui_from_dll("child instance");
 118 }
 119
 120
 121 // ----------------------------------------------------------------------------
 122 // MainApp
 123 // ----------------------------------------------------------------------------
 124
 125 bool MainApp::OnInit()
 126 {
 127     if ( !wxApp::OnInit() )
 128         return false;
 129
 130     wxFrame *f = new MainFrame();
 131     f->Show(true);
 132
 133     return true;
 134 }
 135
 136 int MainApp::OnExit()
 137 {
 138     wx_dll_cleanup();
 139     return wxApp::OnExit();
 140 }
 141
 142
 143 IMPLEMENT_APP(MainApp)