Fix incorrect IntPtr null check

augustoproiete · augustoproiete · commit 68a7d51ee11f · 2020-11-15T15:47:38.000-04:00
diff --git a/src/Ookii.Dialogs.Wpf/VistaFolderBrowserDialog.cs b/src/Ookii.Dialogs.Wpf/VistaFolderBrowserDialog.cs
@@ -232,13 +232,13 @@ private bool RunDialogDownlevel(IntPtr owner)
             }
             finally
             {
-                if( rootItemIdList != null )
+                if( rootItemIdList != IntPtr.Zero )
                 {
                     IMalloc malloc = NativeMethods.SHGetMalloc();
                     malloc.Free(rootItemIdList);
                     Marshal.ReleaseComObject(malloc);
                 }
-                if( resultItemIdList != null )
+                if( resultItemIdList != IntPtr.Zero )
                 {
                     Marshal.FreeCoTaskMem(resultItemIdList);
                 }

Original file line number	Diff line number	Diff line change
`@@ -232,13 +232,13 @@ private bool RunDialogDownlevel(IntPtr owner)`
`232`	`232`	`}`
`233`	`233`	`finally`
`234`	`234`	`{`
`235`		`- if( rootItemIdList != null )`
	`235`	`+ if( rootItemIdList != IntPtr.Zero )`
`236`	`236`	`{`
`237`	`237`	`IMalloc malloc = NativeMethods.SHGetMalloc();`
`238`	`238`	`malloc.Free(rootItemIdList);`
`239`	`239`	`Marshal.ReleaseComObject(malloc);`
`240`	`240`	`}`
`241`		`- if( resultItemIdList != null )`
	`241`	`+ if( resultItemIdList != IntPtr.Zero )`
`242`	`242`	`{`
`243`	`243`	`Marshal.FreeCoTaskMem(resultItemIdList);`
`244`	`244`	`}`