System.AccessViolationException thrown by PrintDocument.Print when platform is X86 #76538
Description
Description
PrintDocument.Print works fine for x86 builds with .NET 6.0.9 but throws exception in .NET 7 RC1. This only happens if the platform is x86.
Reproduction Steps
Create new WPF desktop application.
Change csproj so it looks like this:
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>WinExe</OutputType>
<TargetFramework>net7.0-windows</TargetFramework>
<UseWPF>true</UseWPF>
<UseWindowsForms>true</UseWindowsForms>
<PlatformTarget>x86</PlatformTarget>
</PropertyGroup>
</Project>
Add a button to MainWindow and change MainWindow.xaml.cs so it looks like this:
using System.Drawing;
using System.Drawing.Printing;
using System.Windows;
namespace TestPrintNet7
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
string text = "Hello world";
public MainWindow()
{
InitializeComponent();
}
private void Button_Click(object sender, RoutedEventArgs e)
{
using (PrintDocument doc = new PrintDocument())
{
doc.PrinterSettings.PrinterName = "Microsoft Print to PDF";
doc.PrintPage += new PrintPageEventHandler(doc_PrintPage);
doc.Print(); // exception here!!!
doc.PrintPage -= doc_PrintPage;
}
}
void doc_PrintPage(object sender, PrintPageEventArgs e)
{
using (Font font = new Font("Consolas", 9, System.Drawing.FontStyle.Regular))
{
e.Graphics.DrawString(text, font, System.Drawing.Brushes.Black, 0, 0);
}
}
}
}
Expected behavior
Text should be printed to file selected by Microsoft Print to PDF printer.
Actual behavior
Exception thrown on the line
doc.Print();
Regression?
Works fine in .NET 6.
Known Workarounds
none
Configuration
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>WinExe</OutputType>
<TargetFramework>net7.0-windows</TargetFramework>
<UseWPF>true</UseWPF>
<UseWindowsForms>true</UseWindowsForms>
<PlatformTarget>x86</PlatformTarget>
</PropertyGroup>
</Project>
The problem only happens on .NET 7 with x86 platform target.
Tested on Windows build 25211.1001. The machine architecture is x64.
Other information
No response