Migrate WinForms content

[adegeo]

Summary

Initial migration.
Lots of little fixes and tweaks.
Opening the PR to get a build report and start fixing errors.

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Internal previews

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📄 File	🔗 Preview link
dotnet-desktop-guide/winforms/additional-security-considerations-in-windows-forms.md	dotnet-desktop-guide/winforms/additional-security-considerations-in-windows-forms
dotnet-desktop-guide/winforms/advanced/about-gdi-managed-code.md	dotnet-desktop-guide/winforms/advanced/about-gdi-managed-code
dotnet-desktop-guide/winforms/advanced/alpha-blending-lines-and-fills.md	dotnet-desktop-guide/winforms/advanced/alpha-blending-lines-and-fills
dotnet-desktop-guide/winforms/advanced/antialiasing-with-lines-and-curves.md	dotnet-desktop-guide/winforms/advanced/antialiasing-with-lines-and-curves
dotnet-desktop-guide/winforms/advanced/application-settings-architecture.md	dotnet-desktop-guide/winforms/advanced/application-settings-architecture
dotnet-desktop-guide/winforms/advanced/application-settings-attributes.md	dotnet-desktop-guide/winforms/advanced/application-settings-attributes
dotnet-desktop-guide/winforms/advanced/application-settings-for-custom-controls.md	dotnet-desktop-guide/winforms/advanced/application-settings-for-custom-controls
dotnet-desktop-guide/winforms/advanced/application-settings-for-windows-forms.md	dotnet-desktop-guide/winforms/advanced/application-settings-for-windows-forms
dotnet-desktop-guide/winforms/advanced/application-settings-overview.md	dotnet-desktop-guide/winforms/advanced/application-settings-overview
dotnet-desktop-guide/winforms/advanced/bezier-splines-in-gdi.md	dotnet-desktop-guide/winforms/advanced/bezier-splines-in-gdi
dotnet-desktop-guide/winforms/advanced/bi-directional-support-for-windows-forms-applications.md	dotnet-desktop-guide/winforms/advanced/bi-directional-support-for-windows-forms-applications
dotnet-desktop-guide/winforms/advanced/brushes-and-filled-shapes-in-gdi.md	dotnet-desktop-guide/winforms/advanced/brushes-and-filled-shapes-in-gdi
dotnet-desktop-guide/winforms/advanced/cardinal-splines-in-gdi.md	dotnet-desktop-guide/winforms/advanced/cardinal-splines-in-gdi
dotnet-desktop-guide/winforms/advanced/com-interop-by-displaying-a-windows-form-shadow.md	dotnet-desktop-guide/winforms/advanced/com-interop-by-displaying-a-windows-form-shadow
dotnet-desktop-guide/winforms/advanced/constructing-and-drawing-curves.md	dotnet-desktop-guide/winforms/advanced/constructing-and-drawing-curves
dotnet-desktop-guide/winforms/advanced/constructing-and-drawing-paths.md	dotnet-desktop-guide/winforms/advanced/constructing-and-drawing-paths
dotnet-desktop-guide/winforms/advanced/control-help-using-tooltips.md	dotnet-desktop-guide/winforms/advanced/control-help-using-tooltips
dotnet-desktop-guide/winforms/advanced/coordinate-systems-and-transformations.md	dotnet-desktop-guide/winforms/advanced/coordinate-systems-and-transformations
dotnet-desktop-guide/winforms/advanced/cropping-and-scaling-images-in-gdi.md	dotnet-desktop-guide/winforms/advanced/cropping-and-scaling-images-in-gdi
dotnet-desktop-guide/winforms/advanced/display-of-asian-characters-with-the-imemode-property.md	dotnet-desktop-guide/winforms/advanced/display-of-asian-characters-with-the-imemode-property
dotnet-desktop-guide/winforms/advanced/double-buffered-graphics.md	dotnet-desktop-guide/winforms/advanced/double-buffered-graphics
dotnet-desktop-guide/winforms/advanced/drag-and-drop-operations-and-clipboard-support.md	dotnet-desktop-guide/winforms/advanced/drag-and-drop-operations-and-clipboard-support
dotnet-desktop-guide/winforms/advanced/drawing-positioning-and-cloning-images-in-gdi.md	dotnet-desktop-guide/winforms/advanced/drawing-positioning-and-cloning-images-in-gdi
dotnet-desktop-guide/winforms/advanced/effects-of-modifying-base-form-appearance.md	dotnet-desktop-guide/winforms/advanced/effects-of-modifying-base-form-appearance
dotnet-desktop-guide/winforms/high-dpi-support-in-windows-forms.md	dotnet-desktop-guide/winforms/high-dpi-support-in-windows-forms
dotnet-desktop-guide/winforms/more-secure-file-and-data-access-in-windows-forms.md	dotnet-desktop-guide/winforms/more-secure-file-and-data-access-in-windows-forms
dotnet-desktop-guide/winforms/more-secure-printing-in-windows-forms.md	dotnet-desktop-guide/winforms/more-secure-printing-in-windows-forms
dotnet-desktop-guide/winforms/security-in-windows-forms-overview.md	dotnet-desktop-guide/winforms/security-in-windows-forms-overview
dotnet-desktop-guide/winforms/windows-forms-accessibility-improvements.md	dotnet-desktop-guide/winforms/windows-forms-accessibility-improvements
dotnet-desktop-guide/winforms/windows-forms-security.md	dotnet-desktop-guide/winforms/windows-forms-security

Note

This table shows preview links for the 30 files with the most changes. For preview links for other files in this PR, select OpenPublishing.Build Details within checks.