From 40ee93c6fb162ed5c20853060099088e0b568e31 Mon Sep 17 00:00:00 2001
From: trustable-code <krauter.simon@arcor.de>
Date: Thu, 13 Sep 2018 18:18:52 +0200
Subject: Don't use nil for strings any more

---
 src/nigui/msgbox.nim                        | 6 +++---
 src/nigui/private/windows/platform_impl.nim | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/nigui/msgbox.nim b/src/nigui/msgbox.nim
index 5071dfb..c955c03 100755
--- a/src/nigui/msgbox.nim
+++ b/src/nigui/msgbox.nim
@@ -20,7 +20,7 @@ proc buttonClick(event: ClickEvent) =
   cast[MessageBoxWindow](event.control.parentWindow).clickedButton = cast[Button](event.control)
   event.control.parentWindow.dispose()
 
-proc msgBox*(parent: Window, message: string, title = "Message", button1 = "OK", button2, button3: string = nil): int {.discardable.}  =
+proc msgBox*(parent: Window, message: string, title = "Message", button1 = "OK", button2, button3: string = ""): int {.discardable.}  =
   const buttonMinWidth = 100
   var window = new MessageBoxWindow
   window.init()
@@ -50,13 +50,13 @@ proc msgBox*(parent: Window, message: string, title = "Message", button1 = "OK",
   b1.onClick = buttonClick
   buttonContainer.add(b1)
 
-  if button2 != nil:
+  if button2 != "":
     b2 = newButton(button2)
     b2.minWidth = buttonMinWidth
     b2.onClick = buttonClick
     buttonContainer.add(b2)
 
-  if button3 != nil:
+  if button3 != "":
     b3 = newButton(button3)
     b3.minWidth = buttonMinWidth
     b3.onClick = buttonClick
diff --git a/src/nigui/private/windows/platform_impl.nim b/src/nigui/private/windows/platform_impl.nim
index 36c262a..fbc833a 100755
--- a/src/nigui/private/windows/platform_impl.nim
+++ b/src/nigui/private/windows/platform_impl.nim
@@ -446,14 +446,14 @@ method run*(dialog: OpenFileDialog) =
   ofn.lpstrFile = s
   let ret = GetOpenFileNameW(ofn)
   if ret:
-    var dirOrFirstFile: string
+    var dirOrFirstFile = ""
     # Split selected file names:
     while s[0].ord != 0:
       var i = 0
       while i < s.len - 1 and s[i].ord != 0:
         i.inc(2)
       let filename = s.substr(0, i - 1).pUtf16ToUtf8()
-      if dirOrFirstFile == nil:
+      if dirOrFirstFile == "":
         dirOrFirstFile = filename
       else:
         dialog.files.add(dirOrFirstFile / filename)
-- 
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