X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/496fd9fb93d3222159c1d024c25e79eab6abe34c..276c7463f35b7f3ec8dfdbe80b29448f2e503d93:/src/os2/app.cpp

diff --git a/src/os2/app.cpp b/src/os2/app.cpp
index 35f7a8481c..2260c6d2c6 100644
--- a/src/os2/app.cpp
+++ b/src/os2/app.cpp
@@ -301,7 +301,7 @@ bool wxApp::RegisterWindowClasses(
     if (!::WinRegisterClass( vHab
                             ,wxCanvasClassName
                             ,wxWndProc
-                            ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_HITTEST | CS_SAVEBITS | CS_SYNCPAINT
+                            ,CS_MOVENOTIFY | CS_SIZEREDRAW | CS_HITTEST | CS_SAVEBITS | CS_SYNCPAINT | CS_CLIPCHILDREN
                             ,sizeof(ULONG)
                            ))
     {