Strange error compiling Asphyre in degug mode, but not in release mode
lazarus / 39-Graphics

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BlueIcaro · 2018-09-17 18:05

Hi, I downloaded Asphyre from its page
https://asphyre.net/8-news/20-platform-extended-library-re-licensed-
under-mpl

I compile the basic example, using default mode in lazarus, and it's
works nice but if I change to debug mode in lazarus I got a compile
error:
QuotePXL.Devices.DX9.pas(161,15) Error: Incompatible type for arg no.
2: Got "Class Of IDirect3D9Ex", expected "TClass"The error is in unit
PXL.Devices.DX9.
This is the line:
 Code: [Select]   if Failed(IDirect3D9Ex(FContext.Direct3D).GetAdapter
DisplayModeEx(D3DADAPTER_DEFAULT, @DisplayModeEx, nil)) then
      Exit(False);  
Why this problem?
/BlueIcaro

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JuhaManninen · 2018-09-17 18:12

Quote from: BlueIcaro on September 17, 2018, 08:05:36 pmI compile the
basic example, using default mode in lazarus, and it's works nice but
if I change to debug mode in lazarus I got a compile error:
QuotePXL.Devices.DX9.pas(161,15) Error: Incompatible type for arg no.
2: Got "Class Of IDirect3D9Ex", expected "TClass"It is clearly a
compilation error and has nothing to do with debugging. Do you mean
that "debug" build mode makes a difference here? It shouldn't.
I didn't look at the actual code yet, sorry.

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BlueIcaro · 2018-09-17 18:29

Hi, I found that the problem with the option "Verify method calls" in
debuging option.
If I remove this option the code can be compiled.
Debug mode actives this option, and this is the problem.
May be same expert in free pascal compiler can explain it, I don't
know why, but now I can use break points and debug.

/BlueIcaro

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JuhaManninen · 2018-09-17 19:42

Quote from: BlueIcaro on September 17, 2018, 08:29:37 pmHi, I found
that the problem with the option "Verify method calls" in debuging
option.
Ok, yes. Lazarus itself has similar problems:
 https://bugs.freepascal.org/view.php?id=11697
Even the often used accessor class hacks can trigger it.

" -CR Generate checks when calling methods to verify if the virtual
method table for that object is valid. "