другое портативное решение, может быть, такое:
//assume your frame named wxUITestFrame
//headers
class wxUITestFrame : public wxFrame
{
DECLARE_EVENT_TABLE()
protected:
void OnMouseMove(wxMouseEvent& event);
void OnLeftMouseDown(wxMouseEvent& event);
void OnLeftMouseUp(wxMouseEvent& event);
void OnMouseLeave(wxMouseEvent& event);
private:
bool m_isTitleClicked;
wxPoint m_mousePosition; //mouse position when title clicked
};
//cpp
BEGIN_EVENT_TABLE(wxUITestFrame, wxFrame)
EVT_MOTION(wxUITestFrame::OnMouseMove)
EVT_LEFT_DOWN(wxUITestFrame::OnLeftMouseDown)
EVT_LEFT_UP(wxUITestFrame::OnLeftMouseUp)
EVT_LEAVE_WINDOW(wxUITestFrame::OnMouseLeave)
END_EVENT_TABLE()
void wxUITestFrame::OnMouseMove( wxMouseEvent& event )
{
if (event.Dragging())
{
if (m_isTitleClicked)
{
int x, y;
GetPosition(&x, &y); //old window position
int mx, my;
event.GetPosition(&mx, &my); //new mouse position
int dx, dy; //changed mouse position
dx = mx - m_mousePosition.x;
dy = my - m_mousePosition.y;
x += dx;
y += dy;
Move(x, y); //move window to new position
}
}
}
void wxUITestFrame::OnLeftMouseDown( wxMouseEvent& event )
{
if (event.GetY() <= 40) //40 is the height you want to set for title bar
{
m_isTitleClicked = true;
m_mousePosition.x = event.GetX();
m_mousePosition.y = event.GetY();
}
}
void wxUITestFrame::OnLeftMouseUp( wxMouseEvent& event )
{
if (m_isTitleClicked)
{
m_isTitleClicked = false;
}
}
void wxUITestFrame::OnMouseLeave( wxMouseEvent& event )
{
//if mouse dragging too fase, we will not get mouse move event
//instead of mouse leave event here.
if (m_isTitleClicked)
{
int x, y;
GetPosition(&x, &y);
int mx, my;
event.GetPosition(&mx, &my);
int dx, dy;
dx = mx - m_mousePosition.x;
dy = my - m_mousePosition.y;
x += dx;
y += dy;
Move(x, y);
}
}
На самом деле решение, упомянутое Джоном Локком на 1-м этаже, - more
, предложенное в wxMSW ,, а в системе, подобной linux, мы можем смоделировать сообщение ALT BUTTON DOWN при нажатии на заголовок.