3 files changed, 3 insertions, 3 deletions
diff --git a/src/drivers/GDI/Fl_GDI_Image_Surface_Driver.cxx b/src/drivers/GDI/Fl_GDI_Image_Surface_Driver.cxx
index ae3725721..9a037084f 100644
--- a/src/drivers/GDI/Fl_GDI_Image_Surface_Driver.cxx
+++ b/src/drivers/GDI/Fl_GDI_Image_Surface_Driver.cxx
@@ -60,7 +60,7 @@ Fl_GDI_Image_Surface_Driver::Fl_GDI_Image_Surface_Driver(int w, int h, int high_
 
 
 Fl_GDI_Image_Surface_Driver::~Fl_GDI_Image_Surface_Driver() {
-  if (offscreen) DeleteObject(offscreen);
+  if (offscreen && !external_offscreen) DeleteObject(offscreen);
   delete driver();
 }
 
diff --git a/src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx b/src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx
index 1910d3f46..4eae3d58f 100644
--- a/src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx
+++ b/src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx
@@ -72,7 +72,7 @@ Fl_Quartz_Image_Surface_Driver::Fl_Quartz_Image_Surface_Driver(int w, int h, int
 }
 
 Fl_Quartz_Image_Surface_Driver::~Fl_Quartz_Image_Surface_Driver() {
-  if (offscreen) {
+  if (offscreen && !external_offscreen) {
     void *data = CGBitmapContextGetData(offscreen);
     free(data);
     CGContextRelease((CGContextRef)offscreen);
diff --git a/src/drivers/Xlib/Fl_Xlib_Image_Surface_Driver.cxx b/src/drivers/Xlib/Fl_Xlib_Image_Surface_Driver.cxx
index c974ef2cb..2e6250fc1 100644
--- a/src/drivers/Xlib/Fl_Xlib_Image_Surface_Driver.cxx
+++ b/src/drivers/Xlib/Fl_Xlib_Image_Surface_Driver.cxx
@@ -53,7 +53,7 @@ Fl_Xlib_Image_Surface_Driver::Fl_Xlib_Image_Surface_Driver(int w, int h, int hig
 }
 
 Fl_Xlib_Image_Surface_Driver::~Fl_Xlib_Image_Surface_Driver() {
-  if (offscreen) XFreePixmap(fl_display, offscreen);
+  if (offscreen && !external_offscreen) XFreePixmap(fl_display, offscreen);
   delete driver();
 }