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Newsgroups: comp.lang.ada
Date: Tue, 18 Sep 2018 01:19:28 -0700 (PDT)
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Subject: Re: Interface To C Struct That Includes An Array
From: rakusu_klein@fastmail.jp
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Xref: reader02.eternal-september.org comp.lang.ada:54358
Date: 2018-09-18T01:19:28-07:00
List-Id: <comp.lang.ada>

Probably you pass a link to the whole record somewhere where expected only =
a link to the data field. The other explanation of binary garbage in the st=
ring is that you get somwhere a raw uncutted data, because the aiGetMateria=
lString cuts the 32-bit prefix and corrects the length in aiString field by=
 itself.

=D0=BF=D0=BE=D0=BD=D0=B5=D0=B4=D0=B5=D0=BB=D1=8C=D0=BD=D0=B8=D0=BA, 17 =D1=
=81=D0=B5=D0=BD=D1=82=D1=8F=D0=B1=D1=80=D1=8F 2018 =D0=B3., 15:01:43 UTC+3 =
=D0=BF=D0=BE=D0=BB=D1=8C=D0=B7=D0=BE=D0=B2=D0=B0=D1=82=D0=B5=D0=BB=D1=8C ro=
g...@iinet.net.au =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=D0=BB:
>    pragma Convention (C_Pass_By_Copy, API_String);
It doesn't seems to be a good idea for me to copy a kilobyte of data on eve=
ry call.

> The returned Assimp_Path is Length: 16, Data:  B000phoenix.pcx0000
> in which B is a series of four small zeros inside a rectangle.
> I haven't been able to find a syntactical explanation for the four small =
zeros inside a rectangle.
As I can remember, this icon stays for nonprintable characters.

>       function API_Get_Material_Texture (aMaterial : access API_Material_=
Tex;
>                                          Tex_Type  : AI_Texture_Type;
>                                          Index     : Interfaces.C.unsigne=
d;
>                                          Path      : access Assimp_Types.=
API_String :=3D null;
>                                          Mapping   : access AI_Texture_Ma=
pping :=3D null;
>                                          UV_Index  : access Interfaces.C.=
unsigned :=3D null;
>                                          Blend     : access Interfaces.C.=
C_float :=3D null;
>                                          Op        : access AI_Texture_Op=
 :=3D null;
>                                          Map_Mode  : access AI_Texture_Ma=
p_Mode :=3D null)
>                                          return Assimp_Types.API_Return;
I also notice, that you forget the last argument "unsigned int * flags".