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Author Topic: [SOLVED] Heaptrc reports unfreed memory in TForm.ShowModal and Heaptrc can crash  (Read 1115 times)

440bx

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Re: [SOLVED] Heaptrc reports unfreed memory in TForm.ShowModal and Heaptrc can crash
« Reply #15 on: November 10, 2025, 05:53:40 pm »
Maybe as a workaround, the const string could be declared as an array of char instead of as a string.   That way it would no longer be managed.

That way there cannot be a memory leak since the array will be in the data segment.  That said, it is possible to put the array on the heap or in a virtual block but then ensuring the block is freed upon program termination takes a little more work.

I just figured I'd mention those possibilities.

HTH.


@BrunoK,

An academic point, it would be better to typecast the pointer resulting from @such to ptruint than qword.
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BrunoK

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Re: [SOLVED] Heaptrc reports unfreed memory in TForm.ShowModal and Heaptrc can crash
« Reply #16 on: November 10, 2025, 06:01:32 pm »
Quote
@BrunoK,

An academic point, it would be better to typecast the pointer resulting from @such to ptruint than qword.

gnagnagna ...
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Bart

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Re: [SOLVED] Heaptrc reports unfreed memory in TForm.ShowModal and Heaptrc can crash
« Reply #17 on: November 10, 2025, 06:46:34 pm »
IIRC then  this is a know issue.

Bart
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BrunoK

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Re: [SOLVED] Heaptrc reports unfreed memory in TForm.ShowModal and Heaptrc can crash
« Reply #18 on: November 10, 2025, 07:03:28 pm »
Quote from: Bart on November 10, 2025, 06:46:34 pm
IIRC then  this is a know issue.

Bart
Has it been corrected ?
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Bart

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Re: [SOLVED] Heaptrc reports unfreed memory in TForm.ShowModal and Heaptrc can crash
« Reply #19 on: November 10, 2025, 07:06:57 pm »
No, and it's not exactly the same, but probably related.
Issue 40225.

It may be worth while to attache the test case in this thread there also?

Bart
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jamie

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Re: [SOLVED] Heaptrc reports unfreed memory in TForm.ShowModal and Heaptrc can crash
« Reply #20 on: November 14, 2025, 12:48:49 am »
Shortstrings work just fine.

Jamie
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