2 files changed, 3 insertions, 0 deletions
diff --git a/src/nigui/private/gtk3/platform_impl.nim b/src/nigui/private/gtk3/platform_impl.nim
index ac4bf2d..0d0c420 100755
--- a/src/nigui/private/gtk3/platform_impl.nim
+++ b/src/nigui/private/gtk3/platform_impl.nim
@@ -102,6 +102,7 @@ proc pWindowKeyPressSignal(widget: pointer, event: var GdkEventKey, data: pointe
 
   try:
     window.handleKeyDownEvent(evt)
+    result = evt.cancel
   except:
     handleException()
 
diff --git a/src/nigui/private/windows/platform_impl.nim b/src/nigui/private/windows/platform_impl.nim
index 4ee1ab5..dbe6d7c 100755
--- a/src/nigui/private/windows/platform_impl.nim
+++ b/src/nigui/private/windows/platform_impl.nim
@@ -231,6 +231,8 @@ proc pHandleWMKEYDOWNOrWMCHAR(window: Window, control: Control, unicode: int, ke
   windowEvent.character = unicode.pUnicodeCharToUtf8
 
   window.handleKeyDownEvent(windowEvent)
+  if windowEvent.cancel:
+    return true
 
   if control != nil:
     var controlEvent = new ControlKeyEvent