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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Breaking in the Delphi debugger without a breakpoint

Posted by jpluimers on 2019/02/20

You can fire a debugger breakpoint using either of these two:

  • asm int 3 end which is the x86 debug interrupt
  • DebugBreak() which is the Windows API function wrapping the above interrupt

I’m not sure how accurate it is (in the past it would fail under some debuggers other than the Delphi IDE), but as of Delphi 2, there is a DebugHook variable that is non-zero when running under the Delphi debugger, so you can protect your code.

Via [WayBackI remember some time ago, Jeroen Pluijmers posted a snippet of how to place a breakpoint directly in the Delphi source without relying on the F5 key. – Alberto Paganini – Google+

Related:

–jeroen

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