经常会碰到自定义窗口需要自己处理OnKeyDown、OnKeyUp、OnChar等事件，单有些时候接受不正常，这个时候就需要在自定义窗口中使用wxWANTS_CHARS 这个style，附上自己的例子代码：
#include <wx/wx.h>
#include <wx/splitter.h>
class MyWin: public wxWindow
{
public:
MyWin(wxWindow* parent);
virtual ~MyWin(){};
private:
void OnKeyDown(wxKeyEvent& event);
void OnKeyUp(wxKeyEvent& event);
void OnChar(wxKeyEvent& event);
private:
DECLARE_EVENT_TABLE()
};
class MyFrame : public wxFrame
{
public:
MyFrame(wxWindow *pParent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style = wxMINIMIZE_BOX | wxMAXIMIZE_BOX | wxCLOSE_BOX | wxCAPTION | wxSYSTEM_MENU | wxRESIZE_BORDER | wxCLIP_CHILDREN, const wxString& name = wxT("Main Frame"));
virtual ~MyFrame(void);
private:
void OnClose(wxCloseEvent &event);
void OnQuit(wxCommandEvent& WXUNUSED(event));
private:
void CreateGUIControls(void);
private:
DECLARE_EVENT_TABLE()
};
class MyApp : public wxApp
{
private:
MyFrame *m_pMainFrame;
public:
MyApp(void);
virtual ~MyApp(void);
protected:
virtual bool OnInit();
};
IMPLEMENT_APP(MyApp)
MyApp::MyApp(void)
: m_pMainFrame(NULL)
{
}
MyApp::~MyApp(void)
{
}
bool MyApp::OnInit()
{
wxInitAllImageHandlers();
m_pMainFrame = new MyFrame(NULL, wxID_ANY, wxT("MyApp"), wxDefaultPosition, wxDefaultSize);
m_pMainFrame->Centre();
m_pMainFrame->Show(TRUE);
SetTopWindow(m_pMainFrame);
return TRUE;
}
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_CLOSE(MyFrame::OnClose)
EVT_MENU(wxID_CLOSE, MyFrame::OnQuit)
END_EVENT_TABLE()
MyFrame::MyFrame(wxWindow *pParent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style, const wxString& name)
: wxFrame(pParent, id, title, pos, size, style, name)
{
CreateGUIControls();
}
MyFrame::~MyFrame(void)
{
}
void MyFrame::CreateGUIControls(void)
{
wxMenu *menuFile = new wxMenu;
menuFile->Append( wxID_CLOSE, wxT("E&xit") );
wxMenu *menuHelp = new wxMenu;
menuHelp->Append( wxID_ABOUT, wxT("&About...") );
wxMenuBar *menuBar = new wxMenuBar;
menuBar->Append( menuFile, wxT("&File") );
menuBar->Append( menuHelp, wxT("&Help") );
SetMenuBar( menuBar );
CreateStatusBar();
SetStatusText(wxT("Ready"));
SetMinSize( wxSize( 800, 600 ) );
wxSplitterWindow* m_pSashSplitter = new wxSplitterWindow(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxSP_3D | wxCLIP_CHILDREN | wxWANTS_CHARS );
MyWin* pWin = new MyWin(m_pSashSplitter);
pWin->SetBackgroundColour(*wxGREEN);
wxPanel* panel = new wxPanel( m_pSashSplitter);
m_pSashSplitter->SplitVertically( pWin,panel,565);
}
void MyFrame::OnClose(wxCloseEvent& event)
{
event.Skip();
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close();
}
BEGIN_EVENT_TABLE(MyWin, wxWindow)
EVT_KEY_UP( MyWin::OnKeyUp )
EVT_KEY_DOWN( MyWin::OnKeyDown )
EVT_CHAR( MyWin::OnChar )
END_EVENT_TABLE()
MyWin::MyWin(wxWindow* parent)
: wxWindow(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize,wxWANTS_CHARS )
{
}
void MyWin::OnChar(wxKeyEvent& event)
{
wxLogDebug( wxString::Format(wxT("bbbb %d"), event.GetKeyCode()) );
event.Skip();
}
void MyWin::OnKeyDown(wxKeyEvent& event)
{
switch(event.GetKeyCode())
{
case WXK_RIGHT:
wxLogDebug( wxT("right down") );
break;
case WXK_LEFT:
wxLogDebug( wxT("left down") );
break;
case WXK_UP:
wxLogDebug( wxT("up down") );
break;
case WXK_DOWN:
wxLogDebug( wxT("down down") );
break;
default:
break;
}
event.Skip();
}
void MyWin::OnKeyUp(wxKeyEvent& event)
{
switch(event.GetKeyCode())
{
case WXK_RIGHT:
wxLogDebug( wxT("right up") );
break;
case WXK_LEFT:
wxLogDebug( wxT("left up") );
break;
case WXK_UP:
wxLogDebug( wxT("up up") );
break;
case WXK_DOWN:
wxLogDebug( wxT("down up") );
break;
default:
break;
}
event.Skip();
}
