[idd] helper: add CListBox widget

idd/LGIddHelper/CListBox.cpp

@@ -0,0 +1,30 @@
+#include "CListBox.h"
+#include <commctrl.h>
+#include <windows.h>
+#include <windowsx.h>
+#include <CDebug.h>
+
+CListBox::CListBox(DWORD style, HWND parent)
+{
+  m_hwnd = createWindowSimple(WC_LISTBOX, nullptr, style, parent, WS_EX_CLIENTEDGE);
+  if (!m_hwnd)
+    DEBUG_ERROR_HR(GetLastError(), "Failed to create listbox");
+}
+
+void CListBox::initStorage(DWORD count, size_t perItem)
+{
+  SendMessage(m_hwnd, LB_INITSTORAGE, count, perItem);
+}
+
+int CListBox::addItem(const std::wstring &display, LPARAM data)
+{
+  int result = ListBox_AddString(m_hwnd, display.c_str());
+  if (result == LB_ERRSPACE)
+  {
+    DEBUG_ERROR(L"Out of memory while adding to listbox: %s", display.c_str());
+    return -1;
+  }
+
+  ListBox_SetItemData(m_hwnd, result, data);
+  return result;
+}