Add win-arm64 support.

Author: mellinoe

download-native-deps.ps1

@@ -18,6 +18,7 @@ New-Item -ItemType Directory -Force -Path $PSScriptRoot\deps\cimgui\linux-x64 |
 New-Item -ItemType Directory -Force -Path $PSScriptRoot\deps\cimgui\osx | Out-Null
 New-Item -ItemType Directory -Force -Path $PSScriptRoot\deps\cimgui\win-x86 | Out-Null
 New-Item -ItemType Directory -Force -Path $PSScriptRoot\deps\cimgui\win-x64 | Out-Null
+New-Item -ItemType Directory -Force -Path $PSScriptRoot\deps\cimgui\win-arm64 | Out-Null
 
 [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
 
@@ -46,6 +47,18 @@ if( -not $? )
 
 Write-Host "- cimgui.dll (x64)"
 
+$client.DownloadFile(
+    "$repository/releases/download/$tag/cimgui.win-arm64.dll",
+    "$PSScriptRoot/deps/cimgui/win-arm64/$configuration/cimgui.dll")
+if( -not $? )
+{
+    $msg = $Error[0].Exception.Message
+    Write-Error "Couldn't download arm64 cimgui.dll. This most likely indicates the Windows native build failed."
+    exit
+}
+
+Write-Host "- cimgui.dll (arm64)"
+
 $client.DownloadFile(
     "$repository/releases/download/$tag/cimgui.so",
     "$PSScriptRoot/deps/cimgui/linux-x64/cimgui.so")

src/ImGui.NET/ImGui.NET.csproj

@@ -37,6 +37,10 @@
       <PackagePath>runtimes/win-x64/native</PackagePath>
       <Pack>true</Pack>
     </Content>
+    <Content Include="..\..\deps\cimgui\win-arm64\cimgui.dll">
+      <PackagePath>runtimes/win-arm64/native</PackagePath>
+      <Pack>true</Pack>
+    </Content>
     <Content Include="..\..\deps\cimgui\linux-x64\cimgui.so">
       <PackagePath>runtimes/linux-x64/native/libcimgui.so</PackagePath>
       <Pack>true</Pack>