added wxEventLoop::DispatchTimeout()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57571 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/evtloop.h

@@ -32,6 +32,10 @@ protected:
     // get the next message from queue and return true or return false if we
     // got WM_QUIT or an error occurred
     bool GetNextMessage(WXMSG *msg);
+
+    // same as above but with a timeout and return value can be -1 meaning that
+    // time out expired in addition to
+    int GetNextMessageTimeout(WXMSG *msg, unsigned long timeout);
 };
 
 #if wxUSE_GUI
@@ -66,6 +70,7 @@ public:
 
     // override/implement base class virtuals
     virtual bool Dispatch();
+    virtual int DispatchTimeout(unsigned long timeout);
     virtual void WakeUp();
 
 protected:
@@ -92,8 +97,12 @@ public:
 
     // override/implement base class virtuals
     virtual bool Dispatch();
+    virtual int DispatchTimeout(unsigned long timeout);
     virtual void WakeUp();
 
+    // MSW-specific function to process a single message
+    virtual void ProcessMessage(WXMSG *msg);
+
 protected:
     virtual void OnNextIteration();
 };