From f19f813537c7aea1c20749c914e756b54a9c3cf5 Mon Sep 17 00:00:00 2001
From: Igor Pavlov <87184205+ip7z@users.noreply.github.com>
Date: Mon, 27 Dec 2021 00:00:00 +0000
Subject: '21.07'

---
 CPP/Windows/Control/ComboBox.cpp | 66 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 CPP/Windows/Control/ComboBox.cpp

(limited to 'CPP/Windows/Control/ComboBox.cpp')

diff --git a/CPP/Windows/Control/ComboBox.cpp b/CPP/Windows/Control/ComboBox.cpp
new file mode 100644
index 0000000..f6ed8d3
--- /dev/null
+++ b/CPP/Windows/Control/ComboBox.cpp
@@ -0,0 +1,66 @@
+// Windows/Control/ComboBox.cpp
+
+#include "StdAfx.h"
+
+#ifndef _UNICODE
+#include "../../Common/StringConvert.h"
+#endif
+
+#include "ComboBox.h"
+
+#ifndef _UNICODE
+extern bool g_IsNT;
+#endif
+
+namespace NWindows {
+namespace NControl {
+
+LRESULT CComboBox::GetLBText(int index, CSysString &s)
+{
+  s.Empty();
+  LRESULT len = GetLBTextLen(index); // length, excluding the terminating null character
+  if (len == CB_ERR)
+    return len;
+  LRESULT len2 = GetLBText(index, s.GetBuf((unsigned)len));
+  if (len2 == CB_ERR)
+    return len;
+  if (len > len2)
+    len = len2;
+  s.ReleaseBuf_CalcLen((unsigned)len);
+  return len;
+}
+
+#ifndef _UNICODE
+LRESULT CComboBox::AddString(LPCWSTR s)
+{
+  if (g_IsNT)
+    return SendMsgW(CB_ADDSTRING, 0, (LPARAM)s);
+  return AddString(GetSystemString(s));
+}
+
+LRESULT CComboBox::GetLBText(int index, UString &s)
+{
+  s.Empty();
+  if (g_IsNT)
+  {
+    LRESULT len = SendMsgW(CB_GETLBTEXTLEN, MY__int_TO_WPARAM(index), 0);
+    if (len == CB_ERR)
+      return len;
+    LRESULT len2 = SendMsgW(CB_GETLBTEXT, MY__int_TO_WPARAM(index), (LPARAM)s.GetBuf((unsigned)len));
+    if (len2 == CB_ERR)
+      return len;
+    if (len > len2)
+      len = len2;
+    s.ReleaseBuf_CalcLen((unsigned)len);
+    return len;
+  }
+  AString sa;
+  LRESULT len = GetLBText(index, sa);
+  if (len == CB_ERR)
+    return len;
+  s = GetUnicodeString(sa);
+  return s.Len();
+}
+#endif
+
+}}
-- 
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