Import Geant4 11.0.0.beta source tree

source/externals/g4tools/include/tools/Windows/session

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+// Copyright (C) 2010, Guy Barrand. All rights reserved.
+// See the file tools.license for terms.
+
+#ifndef tools_Windows_session
+#define tools_Windows_session
+
+#include <windows.h>
+#include <windowsx.h>
+
+#include <ostream>
+
+namespace tools {
+namespace Windows {
+
+class session {
+public:
+  session(std::ostream& a_out):m_out(a_out){}
+  virtual ~session() {}
+protected:
+  session(const session& a_from):m_out(a_from.m_out){}
+  session& operator=(const session&){return *this;}
+public:
+  std::ostream& out() const {return m_out;}
+
+  bool is_valid() const {return true;}
+
+  bool steer() {
+    while(true) {
+      MSG event;
+      BOOL status = ::GetMessage(&event,NULL,0,0);
+      if(status == -1) { // This may happen (dixit Microsoft doc).
+        break;
+      } else if(status == 0) { //WM_QUIT
+        break;
+      } else {
+        ::TranslateMessage(&event);
+        ::DispatchMessage (&event);
+      }
+    }
+    return true;
+  }
+
+  bool sync() {
+    MSG event;
+    while(::PeekMessage(&event,NULL,0,0,PM_REMOVE)) {
+      if(event.message==WM_QUIT) return false;
+      ::TranslateMessage(&event);
+      ::DispatchMessage(&event);
+    }
+    return true;
+  }
+
+  void show_window(HWND a_hwnd){
+    ::SetForegroundWindow(a_hwnd);
+    ::ShowWindow(a_hwnd,SW_SHOWDEFAULT);
+    ::UpdateWindow(a_hwnd);
+    ::DrawMenuBar(a_hwnd);
+  }
+
+  void set_size(HWND a_hwnd,unsigned int a_width,unsigned int a_height) {
+    ::MoveWindow(a_hwnd,0,0,a_width,a_height,TRUE);
+  }
+
+  //void post(HWND a_hwnd,LPARAM a_msg){
+  //  ::PostMessage(a_hwnd,WM_USER,(WPARAM)0,a_msg);
+  //}
+protected:
+  std::ostream& m_out;
+};
+
+}}
+
+#endif