X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3aba082d50ed54fdde8993f0a1754cc93d2429ea..c0ac3149bfac1e37fb6eb1a7388603020d319676:/src/x11/window.cpp?ds=sidebyside

diff --git a/src/x11/window.cpp b/src/x11/window.cpp
index f10becfa7f..7515a92546 100644
--- a/src/x11/window.cpp
+++ b/src/x11/window.cpp
@@ -805,9 +805,11 @@ void wxWindowX11::DoScreenToClient(int *x, int *y) const
     Window thisWindow = (Window) m_clientWindow;
 
     Window childWindow;
-    int xx = *x;
-    int yy = *y;
-    XTranslateCoordinates(display, rootWindow, thisWindow, xx, yy, x, y, &childWindow);
+    int xx = x ? *x : 0;
+    int yy = y ? *y : 0;
+    XTranslateCoordinates(display, rootWindow, thisWindow,
+                          xx, yy, x ? x : &xx, y ? y : &yy,
+                          &childWindow);
 }
 
 void wxWindowX11::DoClientToScreen(int *x, int *y) const
@@ -817,9 +819,11 @@ void wxWindowX11::DoClientToScreen(int *x, int *y) const
     Window thisWindow = (Window) m_clientWindow;
 
     Window childWindow;
-    int xx = *x;
-    int yy = *y;
-    XTranslateCoordinates(display, thisWindow, rootWindow, xx, yy, x, y, &childWindow);
+    int xx = x ? *x : 0;
+    int yy = y ? *y : 0;
+    XTranslateCoordinates(display, thisWindow, rootWindow,
+                          xx, yy, x ? x : &xx, y ? y : &yy,
+                          &childWindow);
 }