add event filter contributed by A2Razor

This commit is contained in:
Jinhao 2017-09-01 22:57:12 +08:00
parent 2cf0adf777
commit 2974fe2137
9 changed files with 254 additions and 89 deletions

View File

@ -91,9 +91,10 @@ namespace detail
void manage_form_loader(core_window_t*, bool insert_or_remove);
public:
bool emit(event_code, core_window_t*, const event_arg&, bool ask_update, thread_context*);
// if 'bForce__EmitInternal', then ONLY internal (widget's) events are processed (even through explicit filtering)
bool emit(event_code, core_window_t*, const event_arg&, bool ask_update, thread_context*, const bool bForce__EmitInternal = false);
private:
void _m_emit_core(event_code, core_window_t*, bool draw_only, const event_arg&);
void _m_emit_core(event_code, core_window_t*, bool draw_only, const event_arg&, const bool bForce__EmitInternal);
void _m_event_filter(event_code, core_window_t*, thread_context*);
private:
static bedrock bedrock_object;

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@ -17,6 +17,7 @@
#include "general_events.hpp"
#include <nana/paint/graphics.hpp>
#include <functional>
#include <vector>
namespace nana
{
@ -27,6 +28,25 @@ namespace nana
class drawer;
}
class drawer_trigger;
class event_filter_status
{
public:
event_filter_status();
event_filter_status(const event_filter_status& rOther);
event_filter_status(const unsigned evt_disabled_);
const event_filter_status& operator=(const event_filter_status& rOther);
const event_filter_status& operator=(const unsigned evt_disabled_);
bool operator[](const nana::event_code evt_code) const;
bool operator==(const event_filter_status& rOther) const;
bool operator!=(const event_filter_status& rOther) const;
private:
unsigned evt_disabled_;
friend class drawer_trigger;
};
class drawer_trigger
{
friend class detail::drawer;
@ -70,11 +90,19 @@ namespace nana
virtual void key_release(graph_reference, const arg_keyboard&);
virtual void shortkey(graph_reference, const arg_keyboard&);
void filter_event(const event_code evt_code, const bool bDisabled);
void filter_event(const std::vector<event_code> evt_codes, const bool bDisabled);
void filter_event(const event_filter_status& evt_all_states);
bool filter_event(const event_code evt_code);
event_filter_status filter_event();
void clear_filter();
private:
void _m_reset_overrided();
bool _m_overrided(event_code) const;
private:
unsigned overrided_{ 0xFFFFFFFF };
unsigned evt_disabled_{ 0 }; // bit set if event is filtered
};
namespace detail
@ -99,23 +127,23 @@ namespace nana
void bind(basic_window*);
void typeface_changed();
void click(const arg_click&);
void dbl_click(const arg_mouse&);
void mouse_enter(const arg_mouse&);
void mouse_move(const arg_mouse&);
void mouse_leave(const arg_mouse&);
void mouse_down(const arg_mouse&);
void mouse_up(const arg_mouse&);
void mouse_wheel(const arg_wheel&);
void mouse_dropfiles(const arg_dropfiles&);
void resizing(const arg_resizing&);
void resized(const arg_resized&);
void move(const arg_move&);
void focus(const arg_focus&);
void key_press(const arg_keyboard&);
void key_char(const arg_keyboard&);
void key_release(const arg_keyboard&);
void shortkey(const arg_keyboard&);
void click(const arg_click&, const bool);
void dbl_click(const arg_mouse&, const bool);
void mouse_enter(const arg_mouse&, const bool);
void mouse_move(const arg_mouse&, const bool);
void mouse_leave(const arg_mouse&, const bool);
void mouse_down(const arg_mouse&, const bool);
void mouse_up(const arg_mouse&, const bool);
void mouse_wheel(const arg_wheel&, const bool);
void mouse_dropfiles(const arg_dropfiles&, const bool);
void resizing(const arg_resizing&, const bool);
void resized(const arg_resized&, const bool);
void move(const arg_move&, const bool);
void focus(const arg_focus&, const bool);
void key_press(const arg_keyboard&, const bool);
void key_char(const arg_keyboard&, const bool);
void key_release(const arg_keyboard&, const bool);
void shortkey(const arg_keyboard&, const bool);
void map(window, bool forced, const rectangle* update_area = nullptr); //Copy the root buffer to screen
void refresh();
drawer_trigger* realizer() const;
@ -130,7 +158,7 @@ namespace nana
method_state& _m_mth_state(int pos);
template<typename Arg, typename Mfptr>
void _m_emit(event_code evt_code, const Arg& arg, Mfptr mfptr)
void _m_emit(event_code evt_code, const Arg& arg, Mfptr mfptr, const bool bForce__EmitInternal)
{
const int pos = static_cast<int>(evt_code);
@ -139,8 +167,10 @@ namespace nana
if (realizer && (method_state::not_overrided != mth_state))
{
const bool bFiltered = !bForce__EmitInternal && realizer->filter_event(evt_code);
if (method_state::pending == mth_state)
{
if (!bFiltered)
(realizer->*mfptr)(graphics, arg);
//Check realizer, when the window is closed in that event handler, the drawer will be
@ -149,7 +179,10 @@ namespace nana
mth_state = (realizer->_m_overrided(evt_code) ? method_state::overrided : method_state::not_overrided);
}
else
{
if (!bFiltered)
(realizer->*mfptr)(graphics, arg);
}
_m_effect_bground_subsequent();
}

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@ -120,8 +120,13 @@ namespace API
namespace detail
{
general_events* get_general_events(window);
// emits both internal and external event (internal event can be filtered)
bool emit_event(event_code, window, const ::nana::event_arg&);
// explicitly emits internal event (internal event not to be filtered)
bool emit_internal_event(event_code, window, const ::nana::event_arg&);
class enum_widgets_function_base
{
public:
@ -255,6 +260,12 @@ namespace API
return detail::emit_event(evt_code, wd, arg);
}
template<typename EventArg, typename std::enable_if<std::is_base_of< ::nana::event_arg, EventArg>::value>::type* = nullptr>
bool emit_internal_event(event_code evt_code, window wd, const EventArg& arg)
{
return detail::emit_internal_event(evt_code, wd, arg);
}
void umake_event(event_handle);
template<typename Widget = ::nana::widget>

View File

@ -227,6 +227,39 @@ namespace nana
{
return *scheme_;
}
// disables or re-enables internal handling of event within base-widget
void filter_event(const event_code evt_code, const bool bDisabled)
{
trigger_.filter_event(evt_code, bDisabled);
}
void filter_event(const std::vector<event_code> evt_codes, const bool bDisabled)
{
trigger_.filter_event(evt_codes, bDisabled);
}
void filter_event(const event_filter_status& evt_all_states)
{
trigger_.filter_event(evt_all_states);
}
void clear_filter()
{
trigger_.clear_filter();
}
// reads status of if event is filtered
bool filter_event(const event_code evt_code)
{
return trigger_.filter_event(evt_code);
}
event_filter_status filter_event()
{
return trigger_.filter_event();
}
protected:
DrawerTrigger& get_drawer_trigger()
{

View File

@ -379,11 +379,13 @@ namespace nana
return pi_data_->scheme;
}
void bedrock::_m_emit_core(event_code evt_code, core_window_t* wd, bool draw_only, const ::nana::event_arg& event_arg)
void bedrock::_m_emit_core(event_code evt_code, core_window_t* wd, bool draw_only, const ::nana::event_arg& event_arg, const bool bForce__EmitInternal)
{
auto retain = wd->annex.events_ptr;
auto evts_ptr = retain.get();
// if 'bForce__EmitInternal', omit user defined events
const bool bProcess__External_event = !draw_only && !bForce__EmitInternal;
switch (evt_code)
{
case event_code::click:
@ -394,9 +396,9 @@ namespace nana
{
//enable refreshing flag, this is a RAII class for exception-safe
flag_guard fguard(this, wd);
wd->drawer.click(*arg);
wd->drawer.click(*arg, bForce__EmitInternal);
}
if (!draw_only)
if (bProcess__External_event)
evts_ptr->click.emit(*arg, reinterpret_cast<window>(wd));
}
}
@ -412,7 +414,7 @@ namespace nana
if (nullptr == arg)
return;
void(::nana::detail::drawer::*drawer_event_fn)(const arg_mouse&);
void(::nana::detail::drawer::*drawer_event_fn)(const arg_mouse&, const bool);
::nana::basic_event<arg_mouse>* evt_addr;
switch (evt_code)
@ -448,10 +450,10 @@ namespace nana
{
//enable refreshing flag, this is a RAII class for exception-safe
flag_guard fguard(this, wd);
(wd->drawer.*drawer_event_fn)(*arg);
(wd->drawer.*drawer_event_fn)(*arg, bForce__EmitInternal);
}
if (!draw_only)
if (bProcess__External_event)
evt_addr->emit(*arg, reinterpret_cast<window>(wd));
break;
}
@ -463,10 +465,10 @@ namespace nana
{
//enable refreshing flag, this is a RAII class for exception-safe
flag_guard fguard(this, wd);
wd->drawer.mouse_wheel(*arg);
wd->drawer.mouse_wheel(*arg, bForce__EmitInternal);
}
if (!draw_only)
if (bProcess__External_event)
evts_ptr->mouse_wheel.emit(*arg, reinterpret_cast<window>(wd));
}
break;
@ -480,7 +482,7 @@ namespace nana
if (nullptr == arg)
return;
void(::nana::detail::drawer::*drawer_event_fn)(const arg_keyboard&);
void(::nana::detail::drawer::*drawer_event_fn)(const arg_keyboard&, const bool);
::nana::basic_event<arg_keyboard>* evt_addr;
switch (evt_code)
@ -507,15 +509,15 @@ namespace nana
{
//enable refreshing flag, this is a RAII class for exception-safe
flag_guard fguard(this, wd);
(wd->drawer.*drawer_event_fn)(*arg);
(wd->drawer.*drawer_event_fn)(*arg, bForce__EmitInternal);
}
if (!draw_only)
if (bProcess__External_event)
evt_addr->emit(*arg, reinterpret_cast<window>(wd));
break;
}
case event_code::expose:
if (!draw_only)
if (bProcess__External_event)
{
auto arg = dynamic_cast<const arg_expose*>(&event_arg);
if (arg)
@ -530,9 +532,9 @@ namespace nana
{
//enable refreshing flag, this is a RAII class for exception-safe
flag_guard fguard(this, wd);
wd->drawer.focus(*arg);
wd->drawer.focus(*arg, bForce__EmitInternal);
}
if (!draw_only)
if (bProcess__External_event)
evts_ptr->focus.emit(*arg, reinterpret_cast<window>(wd));
}
break;
@ -545,9 +547,9 @@ namespace nana
{
//enable refreshing flag, this is a RAII class for exception-safe
flag_guard fguard(this, wd);
wd->drawer.move(*arg);
wd->drawer.move(*arg, bForce__EmitInternal);
}
if (!draw_only)
if (bProcess__External_event)
evts_ptr->move.emit(*arg, reinterpret_cast<window>(wd));
}
break;
@ -560,9 +562,9 @@ namespace nana
{
//enable refreshing flag, this is a RAII class for exception-safe
flag_guard fguard(this, wd);
wd->drawer.resizing(*arg);
wd->drawer.resizing(*arg, bForce__EmitInternal);
}
if (!draw_only)
if (bProcess__External_event)
evts_ptr->resizing.emit(*arg, reinterpret_cast<window>(wd));
}
break;
@ -575,15 +577,15 @@ namespace nana
{
//enable refreshing flag, this is a RAII class for exception-safe
flag_guard fguard(this, wd);
wd->drawer.resized(*arg);
wd->drawer.resized(*arg, bForce__EmitInternal);
}
if (!draw_only)
if (bProcess__External_event)
evts_ptr->resized.emit(*arg, reinterpret_cast<window>(wd));
}
break;
}
case event_code::unload:
if (!draw_only)
if (bProcess__External_event)
{
auto arg = dynamic_cast<const arg_unload*>(&event_arg);
if (arg && (wd->other.category == category::flags::root))
@ -595,7 +597,7 @@ namespace nana
}
break;
case event_code::destroy:
if (!draw_only)
if (bProcess__External_event)
{
auto arg = dynamic_cast<const arg_destroy*>(&event_arg);
if (arg)

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@ -232,7 +232,7 @@ namespace detail
//No implementation for Linux
}
bool bedrock::emit(event_code evt_code, core_window_t* wd, const ::nana::event_arg& arg, bool ask_update, thread_context* thrd)
bool bedrock::emit(event_code evt_code, core_window_t* wd, const ::nana::event_arg& arg, bool ask_update, thread_context* thrd, const bool bForce__EmitInternal)
{
if(wd_manager().available(wd) == false)
return false;
@ -248,7 +248,7 @@ namespace detail
if(wd->other.upd_state == core_window_t::update_state::none)
wd->other.upd_state = core_window_t::update_state::lazy;
_m_emit_core(evt_code, wd, false, arg);
_m_emit_core(evt_code, wd, false, arg, bForce__EmitInternal);
//A child of wd may not be drawn if it was out of wd's range before wd resized,
//so refresh all children of wd when a resized occurs.
@ -396,7 +396,7 @@ namespace detail
}
template<typename Arg>
void draw_invoker(void(::nana::detail::drawer::*event_ptr)(const Arg&), basic_window* wd, const Arg& arg, bedrock::thread_context* thrd)
void draw_invoker(void(::nana::detail::drawer::*event_ptr)(const Arg&, const bool), basic_window* wd, const Arg& arg, bedrock::thread_context* thrd)
{
if(bedrock::instance().wd_manager().available(wd) == false)
return;
@ -410,7 +410,7 @@ namespace detail
if(wd->other.upd_state == basic_window::update_state::none)
wd->other.upd_state = basic_window::update_state::lazy;
(wd->drawer.*event_ptr)(arg);
(wd->drawer.*event_ptr)(arg, false);
if(thrd) thrd->event_window = pre_wd;
}

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@ -755,7 +755,7 @@ namespace detail
}
template<typename Arg>
void draw_invoker(void (::nana::detail::drawer::*event_ptr)(const Arg&), basic_window* wd, const Arg& arg, bedrock::thread_context* thrd)
void draw_invoker(void (::nana::detail::drawer::*event_ptr)(const Arg&, const bool), basic_window* wd, const Arg& arg, bedrock::thread_context* thrd)
{
if (bedrock::instance().wd_manager().available(wd) == false)
return;
@ -770,7 +770,7 @@ namespace detail
if (wd->other.upd_state == basic_window::update_state::none)
wd->other.upd_state = basic_window::update_state::lazy;
(wd->drawer.*event_ptr)(arg);
(wd->drawer.*event_ptr)(arg, false);
if (thrd) thrd->event_window = prev_event_wd;
}
@ -1626,7 +1626,7 @@ namespace detail
}
}
bool bedrock::emit(event_code evt_code, core_window_t* wd, const ::nana::event_arg& arg, bool ask_update, thread_context* thrd)
bool bedrock::emit(event_code evt_code, core_window_t* wd, const ::nana::event_arg& arg, bool ask_update, thread_context* thrd, const bool bForce__EmitInternal)
{
if (wd_manager().available(wd) == false)
return false;
@ -1642,7 +1642,7 @@ namespace detail
if (wd->other.upd_state == core_window_t::update_state::none)
wd->other.upd_state = core_window_t::update_state::lazy;
_m_emit_core(evt_code, wd, false, arg);
_m_emit_core(evt_code, wd, false, arg, bForce__EmitInternal);
bool good_wd = false;
if (wd_manager().available(wd))

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@ -128,8 +128,88 @@ namespace nana
return 0 != (overrided_ & (1 << static_cast<int>(evt_code)));
}
void drawer_trigger::filter_event(const event_code evt_code, const bool bDisabled)
{
if (bDisabled)
evt_disabled_ |= 1 << static_cast<int>(evt_code); // set
else
evt_disabled_ &= ~(1 << static_cast<int>(evt_code)); // clear
}
void drawer_trigger::filter_event(const std::vector<event_code> evt_codes, const bool bDisabled)
{
const auto it_end = evt_codes.end();
for (auto it = evt_codes.begin(); it != it_end; it++)
filter_event(*it, bDisabled);
}
void drawer_trigger::filter_event(const event_filter_status& evt_all_states)
{
evt_disabled_ = evt_all_states.evt_disabled_;
}
bool drawer_trigger::filter_event(const event_code evt_code)
{
return static_cast<bool>((evt_disabled_ >> static_cast<int>(evt_code)) & 1);
}
event_filter_status drawer_trigger::filter_event()
{
return event_filter_status(evt_disabled_);
}
void drawer_trigger::clear_filter()
{
for (int i = 0; i < static_cast<int>(nana::event_code::end); i++)
filter_event(static_cast<nana::event_code>(i), false);
}
//end class drawer_trigger
//class event_filter_status
event_filter_status::event_filter_status()
{
evt_disabled_ = 0;
}
event_filter_status::event_filter_status(const event_filter_status& rOther)
{
this->evt_disabled_ = rOther.evt_disabled_;
}
event_filter_status::event_filter_status(const unsigned evt_disabled_)
{
this->evt_disabled_ = evt_disabled_;
}
bool event_filter_status::operator[](const nana::event_code evt_code) const
{
return static_cast<bool>((evt_disabled_ >> static_cast<int>(evt_code)) & 1);
}
bool event_filter_status::operator==(const event_filter_status& rOther) const
{
return evt_disabled_ == rOther.evt_disabled_;
}
bool event_filter_status::operator!=(const event_filter_status& rOther) const
{
return evt_disabled_ != rOther.evt_disabled_;
}
const event_filter_status& event_filter_status::operator=(const event_filter_status& rOther)
{
evt_disabled_ = rOther.evt_disabled_;
return *this;
}
const event_filter_status& event_filter_status::operator=(const unsigned evt_disabled_)
{
this->evt_disabled_ = evt_disabled_;
return *this;
}
//end of class event_filter_status
namespace detail
{
typedef bedrock bedrock_type;
@ -174,89 +254,89 @@ namespace nana
data_impl_->realizer->typeface_changed(graphics);
}
void drawer::click(const arg_click& arg)
void drawer::click(const arg_click& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::click, arg, &drawer_trigger::click);
_m_emit(event_code::click, arg, &drawer_trigger::click, bForce__EmitInternal);
}
void drawer::dbl_click(const arg_mouse& arg)
void drawer::dbl_click(const arg_mouse& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::dbl_click, arg, &drawer_trigger::dbl_click);
_m_emit(event_code::dbl_click, arg, &drawer_trigger::dbl_click, bForce__EmitInternal);
}
void drawer::mouse_enter(const arg_mouse& arg)
void drawer::mouse_enter(const arg_mouse& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::mouse_enter, arg, &drawer_trigger::mouse_enter);
_m_emit(event_code::mouse_enter, arg, &drawer_trigger::mouse_enter, bForce__EmitInternal);
}
void drawer::mouse_move(const arg_mouse& arg)
void drawer::mouse_move(const arg_mouse& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::mouse_move, arg, &drawer_trigger::mouse_move);
_m_emit(event_code::mouse_move, arg, &drawer_trigger::mouse_move, bForce__EmitInternal);
}
void drawer::mouse_leave(const arg_mouse& arg)
void drawer::mouse_leave(const arg_mouse& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::mouse_leave, arg, &drawer_trigger::mouse_leave);
_m_emit(event_code::mouse_leave, arg, &drawer_trigger::mouse_leave, bForce__EmitInternal);
}
void drawer::mouse_down(const arg_mouse& arg)
void drawer::mouse_down(const arg_mouse& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::mouse_down, arg, &drawer_trigger::mouse_down);
_m_emit(event_code::mouse_down, arg, &drawer_trigger::mouse_down, bForce__EmitInternal);
}
void drawer::mouse_up(const arg_mouse& arg)
void drawer::mouse_up(const arg_mouse& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::mouse_up, arg, &drawer_trigger::mouse_up);
_m_emit(event_code::mouse_up, arg, &drawer_trigger::mouse_up, bForce__EmitInternal);
}
void drawer::mouse_wheel(const arg_wheel& arg)
void drawer::mouse_wheel(const arg_wheel& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::mouse_wheel, arg, &drawer_trigger::mouse_wheel);
_m_emit(event_code::mouse_wheel, arg, &drawer_trigger::mouse_wheel, bForce__EmitInternal);
}
void drawer::mouse_dropfiles(const arg_dropfiles& arg)
void drawer::mouse_dropfiles(const arg_dropfiles& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::mouse_drop, arg, &drawer_trigger::mouse_dropfiles);
_m_emit(event_code::mouse_drop, arg, &drawer_trigger::mouse_dropfiles, bForce__EmitInternal);
}
void drawer::resizing(const arg_resizing& arg)
void drawer::resizing(const arg_resizing& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::resizing, arg, &drawer_trigger::resizing);
_m_emit(event_code::resizing, arg, &drawer_trigger::resizing, bForce__EmitInternal);
}
void drawer::resized(const arg_resized& arg)
void drawer::resized(const arg_resized& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::resized, arg, &drawer_trigger::resized);
_m_emit(event_code::resized, arg, &drawer_trigger::resized, bForce__EmitInternal);
}
void drawer::move(const arg_move& arg)
void drawer::move(const arg_move& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::move, arg, &drawer_trigger::move);
_m_emit(event_code::move, arg, &drawer_trigger::move, bForce__EmitInternal);
}
void drawer::focus(const arg_focus& arg)
void drawer::focus(const arg_focus& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::focus, arg, &drawer_trigger::focus);
_m_emit(event_code::focus, arg, &drawer_trigger::focus, bForce__EmitInternal);
}
void drawer::key_press(const arg_keyboard& arg)
void drawer::key_press(const arg_keyboard& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::key_press, arg, &drawer_trigger::key_press);
_m_emit(event_code::key_press, arg, &drawer_trigger::key_press, bForce__EmitInternal);
}
void drawer::key_char(const arg_keyboard& arg)
void drawer::key_char(const arg_keyboard& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::key_char, arg, &drawer_trigger::key_char);
_m_emit(event_code::key_char, arg, &drawer_trigger::key_char, bForce__EmitInternal);
}
void drawer::key_release(const arg_keyboard& arg)
void drawer::key_release(const arg_keyboard& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::key_release, arg, &drawer_trigger::key_release);
_m_emit(event_code::key_release, arg, &drawer_trigger::key_release, bForce__EmitInternal);
}
void drawer::shortkey(const arg_keyboard& arg)
void drawer::shortkey(const arg_keyboard& arg, const bool bForce__EmitInternal)
{
_m_emit(event_code::shortkey, arg, &drawer_trigger::shortkey);
_m_emit(event_code::shortkey, arg, &drawer_trigger::shortkey, bForce__EmitInternal);
}
void drawer::map(window wd, bool forced, const rectangle* update_area) //Copy the root buffer to screen

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@ -62,7 +62,12 @@ namespace API
bool emit_event(event_code evt_code, window wd, const ::nana::event_arg& arg)
{
return restrict::bedrock.emit(evt_code, reinterpret_cast<::nana::detail::basic_window*>(wd), arg, true, restrict::bedrock.get_thread_context());
return restrict::bedrock.emit(evt_code, reinterpret_cast<::nana::detail::basic_window*>(wd), arg, true, restrict::bedrock.get_thread_context(), false);
}
bool emit_internal_event(event_code evt_code, window wd, const ::nana::event_arg& arg)
{
return restrict::bedrock.emit(evt_code, reinterpret_cast<::nana::detail::basic_window*>(wd), arg, true, restrict::bedrock.get_thread_context(), true);
}
void enum_widgets_function_base::enum_widgets(window wd, bool recursive)