1 files changed, 7 insertions, 0 deletions
diff --git a/controlsize.go b/controlsize.go
index 7a608d2..ff0973b 100644
--- a/controlsize.go
+++ b/controlsize.go
@@ -11,6 +11,13 @@ type allocation struct {
 	neighbor	Control
 }
 
+type cSysSizeData struct {
+	xmargin		int
+	ymargin		int
+	xpadding		int
+	ypadding		int
+}
+
 // for verification; see sysdata.go
 type sysDataSizeFuncs interface {
 	beginResize() *sysSizeData