Add a NativeEmbeddingControl class that inherits from NativeControlHost in MainWindow.axaml.cs
namespace AvaloniaDXPlayer
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
...
public class NativeEmbeddingControl : NativeControlHost
{
public IntPtr Handle { get; private set; }
protected override IPlatformHandle CreateNativeControlCore(IPlatformHandle parent)
{
var handle = base.CreateNativeControlCore(parent);
Handle = handle.Handle;
Console.WriteLine($"Handle : {Handle}");
return handle;
}
}
}
Add a NativeEmbeddingControl class that inherits from NativeControlHost in MainWindow.axaml.cs
<Window xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:nec="clr-namespace:AvaloniaDXPlayer"
mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="600"
x:Class="AvaloniaDXPlayer.MainWindow"
Width="800" Height="600" Title="AvaloniaDXPlayer">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="100"/>
</Grid.RowDefinitions>
<Grid Grid.Row="0" Background="Black">
<nec:NativeEmbeddingControl x:Name="host" Grid.Row="0" SizeChanged="Host_SizeChanged" />
</Grid>
<Canvas Grid.Row="1">
<TextBox x:Name="textURL" Margin="10" Width="300" Height="20" FontSize="14" Text=""/>
<Button x:Name="btnConnect" Content="Connect" Margin="320,10,0,0" />
<Button x:Name="btnClose" Content="Close" Margin="400,10,0,0" />
<Button x:Name="btnTest" Content="Test" Margin="460,10,0,0" />
</Canvas>
</Grid>
</Window>
Initialize SDL2. During this, insert the Handle of NativeEmbeddingControl as an argument into SDL_CreateWindowFrom
#if defined(LINUX) typedef void* HWND; #endif ... int VideoSDLDraw::init(HWND hwnd, int targetWidth, int targetHeight, int srcWidth, int srcHeight) { release(); DXPRINTF("VideoSDLDraw::init %dx%d, %dx%d\n", targetWidth, targetHeight, srcWidth, srcHeight); MUTEX_LOCK(&m_mutex); Uint32 pixelFormat = SDL_PIXELFORMAT_UNKNOWN;m_pWindow = SDL_CreateWindowFrom(hwnd);if (m_pWindow == NULL) { DXPRINTF("Window could not be created! SDL Error: %s\n", SDL_GetError()); goto fail; } m_pRenderer = SDL_CreateRenderer(m_pWindow, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC); if (m_pRenderer == NULL) { DXPRINTF("Renderer could not be created! SDL Error: %s\n", SDL_GetError()); m_nTextureWidth = m_nTextureHeight = 0; goto fail; } else { //Initialize renderer color SDL_SetRenderDrawColor(m_pRenderer, 0x00, 0x00, 0x00, 0xFF); for (int i = 0; i < m_nTextDraw; i++) m_pTextDraw[i]->setSDLRenderer(m_pRenderer); } #if defined(LINUX) if (targetWidth == 0 && targetHeight == 0) { SDL_GetWindowSize(m_pWindow, &targetWidth, &targetHeight); } #endif pixelFormat = SDL_GetWindowPixelFormat(m_pWindow); m_pTexture = SDL_CreateTexture(m_pRenderer, pixelFormat, SDL_TEXTUREACCESS_STREAMING, targetWidth, targetHeight); if (m_pTexture == NULL) { DXPRINTF("Unable to create streamable texture! SDL Error: %s\n", SDL_GetError()); m_nTextureWidth = m_nTextureHeight = 0; goto fail; } m_nTextureWidth = targetWidth; m_nTextureHeight = targetHeight; SetRectEmpty(&m_rectTargetLast); SDL_RendererInfo rendererInfo; SDL_GetRendererInfo(m_pRenderer, &rendererInfo); DXPRINTF("SDL Renderer : %s\n", rendererInfo.name); MUTEX_UNLOCK(&m_mutex); return 0; fail: MUTEX_UNLOCK(&m_mutex); return -1; }
