diff --git a/src/ImGui.NET/ImGui.NET.csproj b/src/ImGui.NET/ImGui.NET.csproj
index 0ca1b77..a4b413d 100644
--- a/src/ImGui.NET/ImGui.NET.csproj
+++ b/src/ImGui.NET/ImGui.NET.csproj
@@ -5,7 +5,7 @@
     <MinimumVisualStudioVersion>14.0</MinimumVisualStudioVersion>
     <ProjectGuid>{2665014F-0FEC-4268-8F77-7B029921AB09}</ProjectGuid>
     <OutputType>Library</OutputType>
-    <RootNamespace>ImGui</RootNamespace>
+    <RootNamespace>ImGuiNET</RootNamespace>
     <AssemblyName>ImGui.NET</AssemblyName>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
@@ -15,6 +15,7 @@
     <Compile Include="MouseCursorKind.cs" />
     <Compile Include="SelectableFlags.cs" />
     <Compile Include="StyleVar.cs" />
+    <Compile Include="TextInputBuffer.cs" />
     <Compile Include="WindowFlags.cs" />
     <Compile Include="ColorEditMode.cs" />
     <Compile Include="GuiKey.cs" />
diff --git a/src/ImGui.NET/ImGui.cs b/src/ImGui.NET/ImGui.cs
index 87b192d..4704086 100644
--- a/src/ImGui.NET/ImGui.cs
+++ b/src/ImGui.NET/ImGui.cs
@@ -1,4 +1,6 @@
-using System.Numerics;
+using System;
+using System.Numerics;
+using System.Runtime.InteropServices;
 
 namespace ImGuiNET
 {
@@ -25,6 +27,16 @@ namespace ImGuiNET
             ImGuiNative.igText(message);
         }
 
+        public static void PushId(string id)
+        {
+            ImGuiNative.igPushIdStr(id);
+        }
+
+        public static void PopId()
+        {
+            ImGuiNative.igPopId();
+        }
+
         public static void Text(string message, Vector4 color)
         {
             ImGuiNative.igTextColored(color, message);
@@ -35,6 +47,16 @@ namespace ImGuiNET
             return ImGuiNative.igButton(message, size);
         }
 
+        public static void SetNextWindowSize(Vector2 size, SetCondition condition)
+        {
+            ImGuiNative.igSetNextWindowSize(size, condition);
+        }
+
+        public static void SetNextWindowPosCenter(SetCondition condition)
+        {
+            ImGuiNative.igSetNextWindowPosCenter(condition);
+        }
+
         /// <summary>
         /// Helper to scale the ClipRect field of each ImDrawCmd.
         /// Use if your final output buffer is at a different scale than ImGui expects,
@@ -55,5 +77,210 @@ namespace ImGuiNET
                 }
             }
         }
+
+        public static float GetWindowHeight()
+        {
+            return ImGuiNative.igGetWindowHeight();
+        }
+
+        public static bool ColorButton(Vector4 color, bool smallHeight, bool outlineBorder)
+        {
+            return ImGuiNative.igColorButton(color, smallHeight, outlineBorder);
+        }
+
+        public static float GetWindowWidth()
+        {
+            return ImGuiNative.igGetWindowWidth();
+        }
+
+        public static bool BeginWindow(string windowTitle) => BeginWindow(windowTitle, WindowFlags.Default);
+
+        public static bool BeginWindow(string windowTitle, WindowFlags flags)
+        {
+            bool opened = true;
+            return ImGuiNative.igBegin(windowTitle, ref opened, flags);
+        }
+
+        public static bool BeginWindow(string windowTitle, ref bool opened, WindowFlags flags)
+        {
+            return ImGuiNative.igBegin(windowTitle, ref opened, flags);
+        }
+
+        public static bool BeginWindow(string windowTitle, ref bool opened, float backgroundAlpha, WindowFlags flags)
+        {
+            return ImGuiNative.igBegin2(windowTitle, ref opened, new Vector2(), backgroundAlpha, flags);
+        }
+
+        public static bool BeginMenu(string label, bool enabled)
+        {
+            return ImGuiNative.igBeginMenu(label, enabled);
+        }
+
+        public static void BeginMenuBar()
+        {
+            ImGuiNative.igBeginMenuBar();
+        }
+
+        public static bool BeginWindow(string windowTitle, ref bool opened, Vector2 startingSize, WindowFlags flags)
+        {
+            return ImGuiNative.igBegin2(windowTitle, ref opened, startingSize, 1f, flags);
+        }
+
+        public static void EndMenuBar()
+        {
+            ImGuiNative.igEndMenuBar();
+        }
+
+        public static void EndMenu()
+        {
+            ImGuiNative.igEndMenu();
+        }
+
+        public static bool BeginWindow(string windowTitle, ref bool opened, Vector2 startingSize, float backgroundAlpha, WindowFlags flags)
+        {
+            return ImGuiNative.igBegin2(windowTitle, ref opened, startingSize, backgroundAlpha, flags);
+        }
+
+        public static void Separator()
+        {
+            ImGuiNative.igSeparator();
+        }
+
+        public static bool MenuItem(string label, string shortcut)
+        {
+            return MenuItem(label, shortcut, false, true);
+        }
+
+        public static unsafe bool InputText(string label, IntPtr textBuffer, uint bufferSize, InputTextFlags flags, TextEditCallback textEditCallback)
+        {
+            return InputText(label, textBuffer, bufferSize, flags, textEditCallback, IntPtr.Zero);
+        }
+
+        public static unsafe bool InputText(string label, IntPtr textBuffer, uint bufferSize, InputTextFlags flags, TextEditCallback textEditCallback, IntPtr userData)
+        {
+            return ImGuiNative.igInputText(label, textBuffer, bufferSize, flags, textEditCallback, userData.ToPointer());
+        }
+
+        public static bool MenuItem(string label, string shortcut, bool selected, bool enabled)
+        {
+            return ImGuiNative.igMenuItem(label, shortcut, selected, enabled);
+        }
+
+        public static void EndWindow()
+        {
+            ImGuiNative.igEnd();
+        }
+
+        public static void PushStyleColor(ColorTarget target, Vector4 color)
+        {
+            ImGuiNative.igPushStyleColor(target, color);
+        }
+
+        public static unsafe void InputTextMultiline(string label, IntPtr textBuffer, uint bufferSize, Vector2 size, InputTextFlags flags, TextEditCallback callback, IntPtr userData)
+        {
+            ImGuiNative.igInputTextMultiline(label, textBuffer, bufferSize, size, flags, callback, userData.ToPointer());
+        }
+
+        public static void PopStyleColor()
+        {
+            PopStyleColor(1);
+        }
+
+        public static void PopStyleColor(int numStyles)
+        {
+            ImGuiNative.igPopStyleColor(numStyles);
+        }
+
+        public static bool BeginChildFrame(uint id, Vector2 size, WindowFlags flags)
+        {
+            return ImGuiNative.igBeginChildFrame(id, size, flags);
+        }
+
+        public static void EndChildFrame()
+        {
+            ImGuiNative.igEndChildFrame();
+        }
+
+        public static bool BeginChild(string id, Vector2 size, bool border, WindowFlags flags)
+        {
+            return ImGuiNative.igBeginChild(id, size, border, flags);
+        }
+
+        public static bool BeginChild(uint id, Vector2 size, bool border, WindowFlags flags)
+        {
+            return ImGuiNative.igBeginChildEx(id, size, border, flags);
+        }
+
+        public static void EndChild()
+        {
+            ImGuiNative.igEndChild();
+        }
+
+        public static bool Selectable(string label, bool isSelected)
+        {
+            return Selectable(label, isSelected, SelectableFlags.Default);
+        }
+
+        public static bool Selectable(string label, bool isSelected, SelectableFlags flags)
+        {
+            return Selectable(label, isSelected, flags, new Vector2());
+        }
+
+        public static bool Selectable(string label, bool isSelected, SelectableFlags flags, Vector2 size)
+        {
+            return ImGuiNative.igSelectable(label, isSelected, flags, size);
+        }
+
+        public static unsafe Vector2 GetTextSize(string text, float wrapWidth = Int32.MaxValue)
+        {
+            Vector2 result;
+            IntPtr buffer = Marshal.StringToHGlobalAnsi(text);
+            byte* textStart = (byte*)buffer.ToPointer();
+            byte* textEnd = textStart + text.Length;
+            ImGuiNative.igCalcTextSize(out result, (char*)textStart, (char*)textEnd, false, wrapWidth);
+            return result;
+        }
+
+        public static void SameLine()
+        {
+            ImGuiNative.igSameLine(0, 0);
+        }
+
+        public static void SameLine(float localPositionX, float spacingW)
+        {
+            ImGuiNative.igSameLine(localPositionX, spacingW);
+        }
+
+        public static bool IsLastItemHovered()
+        {
+            return ImGuiNative.igIsItemHovered();
+        }
+
+        public static void ShowTooltip(string text)
+        {
+            ImGuiNative.igSetTooltip(text);
+        }
+
+        public static void SetNextTreeNodeOpened(bool opened)
+        {
+            ImGuiNative.igSetNextTreeNodeOpened(opened, SetCondition.Always);
+        }
+
+        public static bool TreeNode(string label)
+        {
+            return ImGuiNative.igTreeNode(label);
+        }
+
+        public static void TreePop()
+        {
+            ImGuiNative.igTreePop();
+        }
+
+        public static Vector2 GetLastItemRect()
+        {
+            Vector2 result;
+            ImGuiNative.igGetItemRectSize(out result);
+            return result;
+        }
     }
 }
diff --git a/src/ImGui.NET/ImGuiNative.cs b/src/ImGui.NET/ImGuiNative.cs
index 0ee1a33..38b73ef 100644
--- a/src/ImGui.NET/ImGuiNative.cs
+++ b/src/ImGui.NET/ImGuiNative.cs
@@ -31,16 +31,6 @@ namespace ImGuiNET
         [DllImport(cimguiLib)]
         public static extern void igShowStyleEditor(ref Style @ref);
 
-        public static void igBegin(string v, ref object _mainWindowOpened, WindowFlags windowFlags)
-        {
-            throw new NotImplementedException();
-        }
-
-        public static void igBeginChildFrame(uint _leftFrameId, Vector2 vector2)
-        {
-            throw new NotImplementedException();
-        }
-
         [DllImport(cimguiLib)]
         public static extern void igShowTestWindow(ref bool opened);
         [DllImport(cimguiLib)]
@@ -64,11 +54,6 @@ namespace ImGuiNET
         [DllImport(cimguiLib)]
         public static extern void igGetContentRegionAvail(out Vector2 @out);
 
-        public static void igSliderFloat(string v1, ref object _sliderVal, float v2, float v3, string v4, int v5)
-        {
-            throw new NotImplementedException();
-        }
-
         [DllImport(cimguiLib)]
         public static extern float igGetContentRegionAvailWidth();
         [DllImport(cimguiLib)]
@@ -416,20 +401,11 @@ namespace ImGuiNET
         public static extern bool igTreeNode(string str_label_id);
 
         [DllImport(cimguiLib)]
-        //public static extern bool igTreeNodeStr(string str_id, string fmt, ...);
         public static extern bool igTreeNodeStr(string str_id, string fmt);
 
         [DllImport(cimguiLib)]
-        //public static extern bool igTreeNodePtr(void* ptr_id, string fmt, ...);
         public static extern bool igTreeNodePtr(void* ptr_id, string fmt);
 
-        /*
-        [DllImport(LibName)]
-        public static extern bool igTreeNodeStrV(string str_id, string fmt, va_list args);
-        [DllImport(LibName)]
-        public static extern bool igTreeNodePtrV(void* ptr_id, string fmt, va_list args);
-        */
-
         [DllImport(cimguiLib)]
         public static extern void igTreePushStr(string str_id);
         [DllImport(cimguiLib)]
@@ -443,7 +419,7 @@ namespace ImGuiNET
         [DllImport(cimguiLib)]
         public static extern bool igSelectable(string label, bool selected, SelectableFlags flags, Vector2 size);
         [DllImport(cimguiLib)]
-        public static extern bool igSelectableEx(string label, bool* p_selected, SelectableFlags flags, Vector2 size);
+        public static extern bool igSelectableEx(string label, ref bool p_selected, SelectableFlags flags, Vector2 size);
         [DllImport(cimguiLib)]
         public static extern bool igListBox(string label, int* current_item, char** items, int items_count, int height_in_items);
 
@@ -473,14 +449,7 @@ namespace ImGuiNET
 
         // Tooltip
         [DllImport(cimguiLib)]
-        //public static extern void igSetTooltip(string fmt, ...);
         public static extern void igSetTooltip(string fmt);
-
-        /*
-        [DllImport(LibName)]
-        public static extern void igSetTooltipV(string fmt, va_list args);
-        */
-
         [DllImport(cimguiLib)]
         public static extern void igBeginTooltip();
         [DllImport(cimguiLib)]
@@ -569,11 +538,11 @@ namespace ImGuiNET
         [DllImport(cimguiLib)]
         public static extern bool igIsAnyItemActive();
         [DllImport(cimguiLib)]
-        public static extern void igGetItemRectMin(Vector2* pOut);
+        public static extern void igGetItemRectMin(out Vector2 pOut);
         [DllImport(cimguiLib)]
-        public static extern void igGetItemRectMax(Vector2* pOut);
+        public static extern void igGetItemRectMax(out Vector2 pOut);
         [DllImport(cimguiLib)]
-        public static extern void igGetItemRectSize(Vector2* pOut);
+        public static extern void igGetItemRectSize(out Vector2 pOut);
         [DllImport(cimguiLib)]
         public static extern bool igIsWindowHovered();
         [DllImport(cimguiLib)]
@@ -593,9 +562,9 @@ namespace ImGuiNET
         [DllImport(cimguiLib)]
         public static extern string igGetStyleColName(ColorTarget idx);
         [DllImport(cimguiLib)]
-        public static extern void igCalcItemRectClosestPoint(Vector2* pOut, Vector2 pos, bool on_edge, float outward);
+        public static extern void igCalcItemRectClosestPoint(out Vector2 pOut, Vector2 pos, bool on_edge, float outward);
         [DllImport(cimguiLib)]
-        public static extern void igCalcTextSize(Vector2* pOut, string text, string text_end, bool hide_text_after_double_hash, float wrap_width);
+        public static extern void igCalcTextSize(out Vector2 pOut, char* text, char* text_end, bool hide_text_after_double_hash, float wrap_width);
         [DllImport(cimguiLib)]
         public static extern void igCalcListClipping(int items_count, float items_height, int* out_items_display_start, int* out_items_display_end);
 
diff --git a/src/ImGui.NET/TextInputBuffer.cs b/src/ImGui.NET/TextInputBuffer.cs
new file mode 100644
index 0000000..2c37169
--- /dev/null
+++ b/src/ImGui.NET/TextInputBuffer.cs
@@ -0,0 +1,49 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace ImGuiNET
+{
+    public class TextInputBuffer : IDisposable
+    {
+        public IntPtr Buffer { get; private set; }
+        public uint Length { get; private set; }
+
+        public TextInputBuffer(int length)
+        {
+            CreateBuffer(length);
+        }
+
+        public TextInputBuffer(string initialText)
+        {
+            Buffer = Marshal.StringToHGlobalAnsi(initialText);
+            Length = (uint)initialText.Length;
+        }
+
+        public void Resize(int newSize)
+        {
+            ClearBuffer();
+            CreateBuffer(newSize);
+        }
+
+        private void CreateBuffer(int size)
+        {
+            Buffer = Marshal.AllocHGlobal(size);
+            Length = Length;
+        }
+
+        private void ClearBuffer()
+        {
+            Marshal.FreeHGlobal(Buffer);
+            Buffer = IntPtr.Zero;
+            Length = 0;
+        }
+
+        public void Dispose()
+        {
+            if (Buffer != IntPtr.Zero)
+            {
+                ClearBuffer();
+            }
+        }
+    }
+}
diff --git a/src/ImGui.NET/project.json b/src/ImGui.NET/project.json
index 4b4e5e9..4e48cce 100644
--- a/src/ImGui.NET/project.json
+++ b/src/ImGui.NET/project.json
@@ -1,7 +1,6 @@
 {
   "dependencies": {
-    "Microsoft.NETCore.Console": "1.0.0-beta-23413",
-    "System.Console": "4.0.0-beta-23427"
+    "Microsoft.NETCore.Console": "1.0.0-beta-23504"
   },
   "runtimes": {
     "win10-x64": { },