added API to Add images

also, added sample code

ClickableTransparentOverlay/ClickableTransparentOverlay.csproj

@@ -105,6 +105,9 @@
     <Reference Include="Veldrid, Version=4.6.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\Veldrid.4.6.1\lib\netstandard2.0\Veldrid.dll</HintPath>
     </Reference>
+    <Reference Include="Veldrid.ImageSharp, Version=4.6.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\Veldrid.ImageSharp.4.6.1\lib\netstandard2.0\Veldrid.ImageSharp.dll</HintPath>
+    </Reference>
     <Reference Include="Veldrid.SDL2, Version=4.6.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\Veldrid.SDL2.4.6.1\lib\netstandard2.0\Veldrid.SDL2.dll</HintPath>
     </Reference>

ClickableTransparentOverlay/Overlay.cs

@@ -5,10 +5,12 @@
 namespace ClickableTransparentOverlay
 {
     using System;
+    using System.Collections.Generic;
     using System.Numerics;
     using System.Threading;
     using System.Windows.Forms;
     using Veldrid;
+    using Veldrid.ImageSharp;
     using Veldrid.Sdl2;
     using Veldrid.StartupUtilities;
 
@@ -28,6 +30,7 @@ namespace ClickableTransparentOverlay
         private static Vector4 clearColor;
         private static int myFps;
         private static bool isClosed;
+        private static Dictionary<string, Texture> loadedImages;
 
         // For Resizing SDL2Window
         private static Vector2 futurePos;
@@ -58,6 +61,7 @@ namespace ClickableTransparentOverlay
         /// </param>
         public Overlay(int x, int y, int width, int height, int fps, bool debug)
         {
+            loadedImages = new Dictionary<string, Texture>();
             clearColor = new Vector4(0.00f, 0.00f, 0.00f, 0.00f);
             myFps = fps;
             isClosed = false;
@@ -188,10 +192,37 @@ namespace ClickableTransparentOverlay
             hookController.Dispose();
             NativeMethods.ShowConsoleWindow();
             this.SubmitUI = null;
+            loadedImages.Clear();
             Console.WriteLine("All Overlay resources are cleared.");
             Application.Exit();
         }
 
+        /// <summary>
+        /// Adds the image to the Graphic Device as a texture.
+        /// Then returns the pointer of the added texture. It also
+        /// cache the image internally rather than creating a new texture on every call,
+        /// so this function can be called multiple times per image (per FPS).
+        /// </summary>
+        /// <param name="filePath">
+        /// Path to the image on disk. If the image is loaded in the memory
+        /// save it on the disk before sending to this function. Reason for this
+        /// is to cache the Image Texture using filePath as the key.
+        /// </param>
+        /// <returns>
+        /// A pointer to the Texture in the Graphic Device.
+        /// </returns>
+        public IntPtr AddOrGetImagePointer(string filePath)
+        {
+            if (!loadedImages.TryGetValue(filePath, out Texture texture))
+            {
+                ImageSharpTexture imgSharpTexture = new ImageSharpTexture(filePath);
+                texture = imgSharpTexture.CreateDeviceTexture(graphicsDevice, graphicsDevice.ResourceFactory);
+                loadedImages.Add(filePath, texture);
+            }
+
+            return imController.GetOrCreateImGuiBinding(graphicsDevice.ResourceFactory, texture);
+        }
+
         /// <summary>
         /// Infinite While Loop to render the ImGui.
         /// </summary>

ClickableTransparentOverlay/packages.config

@@ -14,6 +14,7 @@
   <package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net472" />
   <package id="System.Runtime.CompilerServices.Unsafe" version="4.5.2" targetFramework="net472" />
   <package id="Veldrid" version="4.6.1" targetFramework="net472" />
+  <package id="Veldrid.ImageSharp" version="4.6.1" targetFramework="net472" />
   <package id="Veldrid.SDL2" version="4.6.1" targetFramework="net472" />
   <package id="Veldrid.StartupUtilities" version="4.6.1" targetFramework="net472" />
 </packages>

DriverProgram/DriverProgram.csproj

@@ -76,6 +76,10 @@
     <Reference Include="ImGui.NET, Version=1.70.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\ImGui.NET.1.70.0\lib\netstandard2.0\ImGui.NET.dll</HintPath>
     </Reference>
+    <Reference Include="System.Numerics" />
+    <Reference Include="System.Numerics.Vectors, Version=4.1.4.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\System.Numerics.Vectors.4.5.0\lib\net46\System.Numerics.Vectors.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>

DriverProgram/Program.cs

@@ -2,6 +2,8 @@
 {
     using ClickableTransparentOverlay;
     using ImGuiNET;
+    using System.IO;
+    using System.Numerics;
     using System.Threading;
 
     class Program
@@ -64,6 +66,16 @@
                     showImGuiDemo = true;
                 }
 
+                ImGui.NewLine();
+                if (File.Exists("image.png"))
+                {
+                    ImGui.Image(overlay.AddOrGetImagePointer("image.png"), new Vector2(600, 400));
+                }
+                else
+                {
+                    ImGui.Text("Put any image where the exe is, name is 'image.png'");
+                }
+
                 ImGui.End();
             }
 

DriverProgram/packages.config

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="ImGui.NET" version="1.70.0" targetFramework="net472" />
+  <package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net472" />
 </packages>