1 files changed, 135 insertions, 0 deletions
diff --git a/iup/src/win/iupwin_loop.c b/iup/src/win/iupwin_loop.c
new file mode 100755
index 0000000..7c5dbe7
--- /dev/null
+++ b/iup/src/win/iupwin_loop.c
@@ -0,0 +1,135 @@
+/** \file
+ * \brief Windows Message Loop
+ *
+ * See Copyright Notice in "iup.h"
+ */
+
+#include <stdio.h> 
+#include <stdlib.h>
+#include <string.h> 
+
+#include <windows.h>
+
+#include "iup.h"
+#include "iupcbs.h"  
+
+#include "iup_object.h"
+#include "iup_attrib.h"
+#include "iup_str.h"
+
+#include "iupwin_drv.h"
+#include "iupwin_handle.h"
+
+
+static IFidle win_idle_cb = NULL;
+static int win_main_loop = 0;
+
+
+void iupdrvSetIdleFunction(Icallback f)
+{
+  win_idle_cb = (IFidle)f;
+}
+
+void IupExitLoop(void)
+{
+  PostQuitMessage(0);
+}
+
+static int winLoopProcessMessage(MSG* msg)
+{
+  if (msg->message == WM_QUIT)  /* IUP_CLOSE returned in a callback or IupHide in a popup dialog or all dialogs closed */
+    return IUP_CLOSE;
+  else
+  {
+    TranslateMessage(msg);
+    DispatchMessage(msg);
+    return IUP_DEFAULT;
+  }
+}
+
+int IupMainLoopLevel(void)
+{
+  return win_main_loop;
+}
+
+int IupMainLoop(void)
+{
+  MSG msg;
+  int ret;
+
+  win_main_loop++;
+
+  do 
+  {
+    if (win_idle_cb)
+    {
+      ret = 1;
+      if (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
+      {
+        if (winLoopProcessMessage(&msg) == IUP_CLOSE)
+        {
+          win_main_loop--;
+          return IUP_CLOSE;
+        }
+      }
+      else
+      {
+        int ret = win_idle_cb();
+        if (ret == IUP_CLOSE)
+        {
+          win_idle_cb = NULL;
+          win_main_loop--;
+          return IUP_CLOSE;
+        }
+        if (ret == IUP_IGNORE) 
+          win_idle_cb = NULL;
+      }
+    }
+    else
+    {
+      ret = GetMessage(&msg, NULL, 0, 0);
+      if (ret == -1) /* error */
+      {
+        win_main_loop--;
+        return IUP_ERROR;
+      }
+      if (ret == 0 || /* WM_QUIT */
+          winLoopProcessMessage(&msg) == IUP_CLOSE)  /* ret != 0 */
+      {
+        win_main_loop--;
+        return IUP_NOERROR;
+      }
+    }
+  } while (ret);
+
+  win_main_loop--;
+  return IUP_NOERROR;
+}
+
+int IupLoopStep(void)
+{
+  MSG msg;
+  if (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
+    return winLoopProcessMessage(&msg);
+
+  return IUP_DEFAULT;
+}
+
+void IupFlush(void)
+{
+  int post_quit = 0;
+  MSG msg;
+
+  while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
+  {
+    if (winLoopProcessMessage(&msg) == IUP_CLOSE)
+    {
+      post_quit = 1;
+      break;
+    }
+  }
+
+  /* re post the quit message if still inside MainLoop */
+  if (post_quit && win_main_loop>0)
+    PostQuitMessage(0);
+}