Add methods to intercept low level system events.

This gives applications the means to handle some low level
integration with the system that might otherwise not be possible
without modifying FLTK itself.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10310 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 5 insertions, 0 deletions

diff --git a/src/Fl_win32.cxx b/src/Fl_win32.cxx
index 0dfde6297..d34a54bfa 100644
--- a/src/Fl_win32.cxx
+++ b/src/Fl_win32.cxx
@@ -336,6 +336,8 @@ void* Fl::thread_message() {
   return r;
 }
 
+extern int fl_send_system_handlers(void *e);
+
 IActiveIMMApp *fl_aimm = NULL;
 MSG fl_msg;
 
@@ -402,6 +404,9 @@ int fl_wait(double time_to_wait) {
   // Execute the message we got, and all other pending messages:
   // have_message = PeekMessage(&fl_msg, NULL, 0, 0, PM_REMOVE);
   while ((have_message = PeekMessageW(&fl_msg, NULL, 0, 0, PM_REMOVE)) > 0) {
+    if (fl_send_system_handlers(&fl_msg))
+      continue;
+
     // Let applications treat WM_QUIT identical to SIGTERM on *nix
     if (fl_msg.message == WM_QUIT)
       raise(SIGTERM);