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How do I set a Data Breakpoint in mixed( C#/C++ ) debugging?

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I launch my program in C#, which then calls some unmanaged C++.

When I break on a line in the unmanaged C++, the 'New Data Breakpoint' menu item is grayed out.

Is there anyway around this?

like image 637
jyoung Avatar asked Oct 28 '08 13:10

jyoung

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How do you set a breakpoint within your code?

It's easy to set a breakpoint in Python code to i.e. inspect the contents of variables at a given line. Add import pdb; pdb. set_trace() at the corresponding line in the Python code and execute it. The execution will stop at the breakpoint.

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Set breakpoints in source code To set a breakpoint in source code, click in the far left margin next to a line of code. You can also select the line and press F9, select Debug > Toggle Breakpoint, or right-click and select Breakpoint > Insert breakpoint.

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2 Answers

So to do this I had to:

  • set the unmanaged dll as the startup project
  • set the managed program as the startup command
  • set debug mode as Native
  • "break execution" or hit a breakpoint so that you are in the "debugging" state

yech

like image 106
jyoung Avatar answered Oct 05 '22 17:10

jyoung

To set a data breakpoint in the native portion of a mixed mode process, see the answer posted by jyoung.

Visual Studio disables data breakpoints when running anything but pure, native code. See this post for a partial explanation why from a VS Program Manager.

like image 26
Stu Mackellar Avatar answered Oct 05 '22 16:10

Stu Mackellar
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