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Orm
 Post subject: DLL Confusion
PostPosted: 08.01.2010, 00:46 
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Joined: 09.09.2009, 18:58
Posts: 107
Ok, I know how to use static libraries, but Dynamic Libraries ... ehhhhh I'm lost. Do I need to tell the compiler to link it or is all loading and linking done in h3dInit? And are the only H3D files I need to compile into my program Horde3D.h and Horde3DUtils.h or do I need to include everything else as well?

Main question is this, how in the hell does that all work?
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DarkAngel
 Post subject: Re: DLL Confusion
PostPosted: 08.01.2010, 01:04 
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Joined: 08.11.2006, 03:10
Posts: 384
Location: Australia
It depends on the OS you're using :?

On windows, when you compile Horde it produces a .lib and a .dll

When you compile your game, you include Horde3D.h and you link to the LIB file (just like with a static library). The DLL file must be placed alongside your EXE in order to run your game.
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Orm
 Post subject: Re: DLL Confusion
PostPosted: 08.01.2010, 01:09 
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Joined: 09.09.2009, 18:58
Posts: 107
Alright, and Windows is all I am concerning myself with for now. For the record, what about Linux and Mac?

Also, I'd like to post a log of the compile I did only because I find Warnings irksome for some reason.
Code:
||=== Horde3D Engine, Release Win32 ===|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utTimer.h|20|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utTimer.h|20|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utTimer.h|20|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utTimer.h|20|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\egRenderer.cpp|1994|warning: no newline at end of file|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utTimer.h|20|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utTimer.h|20|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
C:\Users\orm\Desktop\Project Data\Horde3D_SDK_1.0.0_Beta4\Horde3D_SDK_1.0.0_Beta4\Horde3D\Source\Horde3DEngine\utOpenGL.h|26|warning: "NOMINMAX" redefined|
C:\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\c++\3.4.5\mingw32\bits\os_defines.h|46|warning: this is the location of the previous definition|
||=== Build finished: 0 errors, 41 warnings ===|


Might want to keep that "NOMINMAX" define warning in mind for the next version.
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phoenix64
 Post subject: Re: DLL Confusion
PostPosted: 08.01.2010, 16:19 
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Joined: 15.06.2008, 11:21
Posts: 166
Location: Germany
Well, linux behaves a bit different with shared libraries (they are called .so instead of .dll here):
You don't need any .lib, you link directly to the .so, and usually the shared object is then placed in some special path (/usr/lib or /usr/local/lib), if you want to put it next to your application, you have to compile it with a rpath directive. CMake e.g. does this automatically.

Oh, MinGW btw usually does not create a .lib, it creates a .a

And about the warning:
This should fix it (to appear soon in my horde3d hg repository -.-):
Code:
diff --git a/Horde3D/Source/Horde3DEngine/utOpenGL.h b/Horde3D/Source/Horde3DEngine/utOpenGL.h
--- a/Horde3D/Source/Horde3DEngine/utOpenGL.h
+++ b/Horde3D/Source/Horde3DEngine/utOpenGL.h
@@ -23,9 +23,11 @@
 
 #ifdef PLATFORM_WIN
 #   define WIN32_LEAN_AND_MEAN 1
-#   define NOMINMAX
+#   ifndef NOMINMAX
+#       define NOMINMAX
+#   endif
 #   include <windows.h>
-#   include <stddef.h>
+#   include <stddef.h>
 #   define GLAPI __declspec( dllimport )
 #   define GLAPIENTRY _stdcall
 #   define GLAPIENTRYP _stdcall *
@@ -38,7 +40,7 @@
 #      include <Carbon/Carbon.h>
 #   else
 extern "C" void (*glXGetProcAddressARB( const unsigned char *procName ))( void );
-#   endif
+#   endif
 #endif
#endif
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Orm
 Post subject: Re: DLL Confusion
PostPosted: 11.01.2010, 01:38 
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Joined: 09.09.2009, 18:58
Posts: 107
That go in Horde3D.h?
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Volker
 Post subject: Re: DLL Confusion
PostPosted: 11.01.2010, 09:41 
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Joined: 13.11.2007, 11:07
Posts: 1150
Location: Germany
No in utOpenGL.h. See:

Quote:
diff --git a/Horde3D/Source/Horde3DEngine/utOpenGL.h b/Horde3D/Source/Horde3DEngine/utOpenGL.h
--- a/Horde3D/Source/Horde3DEngine/utOpenGL.h
+++ b/Horde3D/Source/Horde3DEngine/utOpenGL.h
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DarkAngel
 Post subject: Re: DLL Confusion
PostPosted: 11.01.2010, 10:10 
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Joined: 08.11.2006, 03:10
Posts: 384
Location: Australia
If I've read that patch right, it means

Open up utOpenGL.h

Remove:
# define NOMINMAX

And replace it with:
# ifndef NOMINMAX
# define NOMINMAX
# endif
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Orm
 Post subject: Re: DLL Confusion
PostPosted: 11.01.2010, 12:51 
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Joined: 09.09.2009, 18:58
Posts: 107
Right, right. God I need more sleep. :roll:
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