How to debug a DLL called from a DLL in Delphi

Question

Let's say I have an EXE named A, which loads a DLL named B, which in turn loads another DLL named C. All of these three are written in Delphi. I have the source for all three.

If I want to debug DLL B, I have no problem. I go to Run|Parameters and enter A.EXE as the host. When I click run, Delphi runs A, which loads B, and I can debug to my heart's content.

But debugging DLL C is another matter.
It looks like Delphi will only let me debug a DLL loaded directly from the EXE. But this is a DLL loaded from another DLL.

Is there some way to do this? Thanks.

This is Delphi 7.

Solution

Use the "Debug spawned processes" check box.

In Delphi 7, this is under Tools | Debugger Options | General.

In Delphi XE-2 and XE-5 it is found under Tools | Options | Debugger Options | Embarcadero Debuggers.

Comments

[David Dubois]

This answer was given by James L. in a comment to the original post, but he declined to post it as an answer. I put the answer here to make it easier for future visitors to find it.

[Server Overflow]

@ david - people like you make stackoverflow better!