wxWidgets Discussion Forum

Code: Select all

OnLeftDown(wxMouseEvent& event);

wxmenuBar* menuBar = new wxMenuBar();

menuBar->Bind(wxEVT_LEFT_DOWN,&MyFrame::OnLeftDown,this);

void MyFrame::OnLeftDown(wxMouseEvent& event)
{
// do something here
}

Code: Select all

#include <iostream>
#include <wx/wx.h>

using namespace std;


class MyFrame : public wxFrame {
public:
	MyFrame();
private:
	void OnLeftDown(wxMouseEvent& event);
} *frame;

MyFrame::MyFrame() :
		wxFrame(NULL, wxID_ANY, _T("Testing Mouse Event")) {
	wxMenuBar* menuBar = new wxMenuBar();
	menuBar->Append(new wxMenu(), _T("File"));

	SetMenuBar(menuBar);

	// bind to wxMenuBar
	menuBar->Bind(wxEVT_LEFT_DOWN, &MyFrame::OnLeftDown, this);
	// bind to wxFrame
	Bind(wxEVT_LEFT_DOWN, &MyFrame::OnLeftDown, this);

	// test OnLeftDown method at initialization
	wxPostEvent(menuBar, wxMouseEvent(wxEVT_LEFT_DOWN));
}

void MyFrame::OnLeftDown(wxMouseEvent& event) {
	cout << "Left mouse down event\n";
}


class MyApp : public wxApp {
public:
	virtual bool OnInit();
} *app;

bool MyApp::OnInit() {
	frame = new MyFrame();
	SetTopWindow(frame);
	frame->Show(true);

	return true;
}


int main(int argc, char** argv) {
	cout << "Starting test ...\n";

	app = new MyApp();
	wxApp::SetInstance(app);
	wxEntry(argc, argv);

	return 0;
}

Code: Select all

#include <wx/wx.h>

class MyFrame : public wxFrame
{
public:
    MyFrame() : wxFrame(NULL, wxID_ANY, _("Test"), wxDefaultPosition, wxSize(800, 600))
    {
        wxMenu* fileMenu = new wxMenu;
        fileMenu->Append(wxID_OPEN);
        fileMenu->Append(wxID_SAVE);

        wxMenu* editMenu = new wxMenu;
        editMenu->Append(wxID_CUT);
        editMenu->Append(wxID_COPY);

        wxMenuBar* menuBar = new wxMenuBar();
        menuBar->Append(fileMenu, _("&File"));
        menuBar->Append(editMenu, _("&Edit"));
        SetMenuBar(menuBar);

        wxTextCtrl* logCtrl = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize,
            wxTE_MULTILINE | wxTE_READONLY | wxTE_RICH2);
        wxLog::SetActiveTarget(new wxLogTextCtrl(logCtrl));
    }

#ifdef __WXMSW__ 
    WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) override
    {
        WXLRESULT result = wxFrame::MSWWindowProc(nMsg, wParam, lParam);

        if ( nMsg == WM_NCHITTEST && result == HTMENU && GetMenuBar() )
        {
            size_t menuCount = GetMenuBar()->GetMenuCount();

            if ( menuCount )
            {
                static const LONG gap = 30; // between last menu item and draggable area
                
                RECT menuItemRect{0};
                POINT mousePos{0};

                ::GetMenuItemRect(GetHandle(), GetMenuBar()->GetHMenu(), menuCount - 1, &menuItemRect);
                ::MapWindowPoints(nullptr, GetHandle(), (LPPOINT)&menuItemRect, 2);

                mousePos.x = LOWORD(lParam);
                mousePos.y = HIWORD(lParam);
                ::ScreenToClient(GetHandle(), &mousePos);

                if ( mousePos.x > menuItemRect.right + gap )
                {
                    wxLogMessage("Pretending this part of menubar is caption.");
                    result = HTCAPTION;
                }
            }            
        }

        return result;
    }
#endif // #ifdef __WXMSW__
};

class MyApp : public wxApp
{
public:
    bool OnInit() override
    {
        (new MyFrame)->Show();
        return true;
    }
}; wxIMPLEMENT_APP(MyApp);