winrtinstaller: Add section on error return values.

diff --git a/windowsRuntimeInstaller/README.txt b/windowsRuntimeInstaller/README.txt
index a84180272078ee62dd9b71551c4dc81986f07f74..aa0309e2b8fcc90d4b196941e6b2de5088cbfda7 100644 (file)
--- a/windowsRuntimeInstaller/README.txt
+++ b/windowsRuntimeInstaller/README.txt
@@ -65,3 +65,18 @@ Some notes on the behavior of the Windows Vulkan Runtime Installer:
      vulkan-1-2-0-1-1.dll) to vulkan-1.dll. This is repeated for\r
      C:\Windows\SYSWOW64 on 64-bit Windows systems to set up the\r
      32-bit loader.\r
+\r
+   o The Vulkan Runtime Installer returns the following exit codes:\r
+         0 - Success\r
+        10 - Failure\r
+      If the Installer returns an error code of 10, the Installer\r
+      will have attempted to uninstall whatever it installed\r
+      before it detected an error.\r
+\r
+   o The Vulkan Runtime Uninstaller returns the following exit codes:\r
+         0 - Success\r
+         3 - Success, reboot required\r
+        10 - Failure\r
+      If the Uninstaller returns an error code of 10, it will have\r
+      simply exited when the failure was detected and will\r
+      not have attempted to do further uninstall work.\r