Reload device list when machine awaked

DSView/pv/mainwindow.cpp

@@ -2221,6 +2221,11 @@ namespace pv
     QWidget* MainWindow::GetBodyView()
     {
         return _view;
-    }   
+    }
+
+    void MainWindow::OnWindowsPowerEvent(bool bEnterSleep)
+    {
+        _session->ProcessPowerEvent(bEnterSleep);
+    }
   
 } // namespace pv

DSView/pv/mainwindow.h

@@ -134,6 +134,8 @@ public:
     void switchLanguage(int language) override;
     bool able_to_close();    
     QWidget* GetBodyView();
+
+    void OnWindowsPowerEvent(bool bEnterSleep);
     
 private: 
 	void setup_ui();

DSView/pv/sigsession.cpp

@@ -2586,4 +2586,16 @@ namespace pv
         on_load_config_end();
     }
 
+    void SigSession::ProcessPowerEvent(bool bEnterSleep)
+    {
+        if (bEnterSleep){
+            if (_is_working && _device_agent.is_hardware()){
+                stop_capture();
+            }
+        }
+        else{
+            ds_reload_device_list();
+        }
+    }
+
 } // namespace pv

DSView/pv/sigsession.h

@@ -453,6 +453,8 @@ public:
 
     void apply_samplerate();
 
+    void ProcessPowerEvent(bool bEnterSleep);
+
 private:
     void set_cur_samplelimits(uint64_t samplelimits);
     void set_cur_snap_samplerate(uint64_t samplerate);

DSView/pv/winnativewidget.cpp

@@ -40,6 +40,7 @@
 #include "mainframe.h"
 #include "dsvdef.h"
 #include "appcontrol.h"
+#include "mainwindow.h"
 
 #define FIXED_WIDTH(widget) (widget->minimumWidth() >= widget->maximumWidth())
 #define FIXED_HEIGHT(widget) (widget->minimumHeight() >= widget->maximumHeight())
@@ -373,6 +374,28 @@ LRESULT CALLBACK WinNativeWidget::WndProc(HWND hWnd, UINT message, WPARAM wParam
             }
             break;
         }
+        case WM_POWERBROADCAST:
+        {
+            if (self->_childWidget != NULL)
+            {
+                dsv::MainFrame *frame = dynamic_cast<dsv::MainFrame*>(self->_childWidget);
+                dsv::MainWindow *mainWnd = dynamic_cast<dsv::MainWindow*>(frame->GetMainWindow());
+                switch (wParam)
+                {
+                case PBT_APMQUERYSUSPEND:
+                    dsv_info("Windows enters sleep.")
+                    mainWnd->OnWindowsPowerEvent(true);
+                    break;
+
+                case PBT_APMRESUMESUSPEND:
+                case PBT_APMRESUMECRITICAL:
+                    dsv_info("Windows be awaked.")
+                    mainWnd->OnWindowsPowerEvent(false);
+                    break;
+                }
+            }
+            break;
+        }
     }
 
     return DefWindowProc(hWnd, message, wParam, lParam);