wxDisplayFactoryMSW::wxDisplayFactoryMSW()
{
// This is not supposed to happen with the current code, the factory is
// implicitly a singleton.
wxASSERT_MSG( !ms_factory, wxS("Using more than one factory?") );
ms_factory = this;
m_hiddenHwnd = NULL;
m_hiddenClass = NULL;
if ( gs_MonitorFromPoint==NULL || gs_MonitorFromWindow==NULL
|| gs_GetMonitorInfo==NULL || gs_EnumDisplayMonitors==NULL )
{
// First initialization, or last initialization failed.
wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
wxDL_INIT_FUNC(gs_, MonitorFromPoint, dllDisplay);
wxDL_INIT_FUNC(gs_, MonitorFromWindow, dllDisplay);
wxDL_INIT_FUNC_AW(gs_, GetMonitorInfo, dllDisplay);
wxDL_INIT_FUNC(gs_, EnumDisplayMonitors, dllDisplay);
// we can safely let dllDisplay go out of scope, the DLL itself will
// still remain loaded as all programs link to it statically anyhow
}
if ( gs_MonitorFromPoint==NULL || gs_MonitorFromWindow==NULL
|| gs_GetMonitorInfo==NULL || gs_EnumDisplayMonitors==NULL )
return;
DoRefreshMonitors();
// Also create a hidden window to listen for WM_SETTINGCHANGE that we
// receive when a monitor is added to or removed from the system as we must
// refresh our monitor handles information then.
m_hiddenHwnd = wxCreateHiddenWindow
(
&m_hiddenClass,
wxT("wxDisplayHiddenWindow"),
wxDisplayWndProc
);
}
wxDisplayFactoryMSW::wxDisplayFactoryMSW()
{
// This is not supposed to happen with the current code, the factory is
// implicitly a singleton.
wxASSERT_MSG( !ms_factory, wxS("Using more than one factory?") );
ms_factory = this;
m_hiddenHwnd = NULL;
m_hiddenClass = NULL;
DoRefreshMonitors();
// Also create a hidden window to listen for WM_SETTINGCHANGE that we
// receive when a monitor is added to or removed from the system as we must
// refresh our monitor handles information then.
m_hiddenHwnd = wxCreateHiddenWindow
(
&m_hiddenClass,
wxT("wxDisplayHiddenWindow"),
wxDisplayWndProc
);
}
