<PackageReference Include="System.Drawing.Common" Version="10.0.0-preview.1.25080.3" />
WNDPROC
using Windows.
Win32.
Foundation;
namespace Windows.
Win32.
UI.
WindowsAndMessaging
{
internal delegate LRESULT WNDPROC (
HWND hWnd,
uint msg,
WPARAM wParam,
LPARAM lParam);
}