commit f7733c7b4f8b0059b43c9ddd847b4f6b8604881f
author Doug Binks <doug@enkisoftware.com> Sat Sep 08 17:14:57 2018 +0200
committer Camilla Löwy <elmindreda@elmindreda.org> Tue Mar 05 16:10:59 2019 +0100
tree b3059a097e144aadd08f5a2bfd4cc4dad2be6884
parent 5c752355cbf447f86cdfbaa1a493cf64182ba8b8

Win32: Add missing out parameter NULL checks

This fixes _glfwPlatformGetMonitorWorkarea not checking if its out
parameters were NULL.

Related to #1322.

src/win32_monitor.c

diff --git a/src/win32_monitor.c b/src/win32_monitor.c
index a8a3525..13ceadf 100644
--- a/src/win32_monitor.c
+++ b/src/win32_monitor.c
@@ -377,10 +377,14 @@
     hMonitor = MonitorFromPoint( pointInMonitor, 0 );
     GetMonitorInfo(hMonitor, &monitorInfo);
 
-    *xpos   = monitorInfo.rcWork.left;
-    *ypos   = monitorInfo.rcWork.top;
-    *width  = monitorInfo.rcWork.right - monitorInfo.rcWork.left;
-    *height = monitorInfo.rcWork.bottom - monitorInfo.rcWork.top;
+    if (xpos)
+        *xpos   = monitorInfo.rcWork.left;
+    if (ypos)
+        *ypos   = monitorInfo.rcWork.top;
+    if (width)
+        *width  = monitorInfo.rcWork.right - monitorInfo.rcWork.left;
+    if (height)
+        *height = monitorInfo.rcWork.bottom - monitorInfo.rcWork.top;
 }
 
 GLFWvidmode* _glfwPlatformGetVideoModes(_GLFWmonitor* monitor, int* count)