When the left side of one rectangle overlaps with the right side of the other rectangle, rectangles are considered not intersecting.

It would be good to clarify how IntersectsWith method handles rectangles that overlap borders, X == r.X + Width. WinForms consider this case as not an intersection. WPF considers this as an intersection but does not document this fact either:https://docs.microsoft.com/en-us/dotnet/api/system.windows.rect.intersectswith?view=netframework-4.7.1#System_Windows_Rect_IntersectsWith_System_Windows_Rect_
The difference between the frameworks is confusing. This could be documented with a sample or even a pointer to reference source website.

Another good note would be to mention that this method ignores integer overflows and might be inaccurate due to this fact.

Document Details

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• ID: 7f5cd207-cade-dd01-bfe0-5303b2bacf49
• Version Independent ID: 931eae53-8fac-b6d6-6324-ca94473f610a
• Content: Rectangle.IntersectsWith(Rectangle) Method (System.Drawing)
• Content Source: xml/System.Drawing/Rectangle.xml
• Service: unspecified
• GitHub Login: @dotnet-bot
• Microsoft Alias: dotnetcontent

Öffne xml/System.Drawing/Rectangle.xml und suche den Eintrag IntersectsWith(Rectangle). Vergleiche seine aktuelle Formulierung mit dem im Issue beschriebenen Verhalten von WinForms und WPF und dokumentiere Rechtecke, die sich an den Rändern berühren, sowie die Einschränkung durch Ganzzahlüberlauf; füge optional das angeforderte Beispiel oder einen Link zur Reference Source hinzu. Die Aufgabe ist abgeschlossen, wenn die API-Referenz beide Verhaltensweisen klar angibt.