How to publish resource in extension-DLLs to the EXE?

[Erich Hermann]

I use an Extension-MFC-DLL that contains functions and resources. When I want to access a resource from within my EXE, the search order is EXE, ext-DLL, MFC-DLL for the resources.

But how to I publish my ext-DLL resource-constants to the exe. Including resource.h of my ext-DLL into the EXE-code leads to redefinitions of constants.

What is the correct philosophy?

Erich

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Erich Hermann
ETAS GmbH & Co. KG e-mail: [email protected]
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[Karl]

one way is to use the WIN32 Api, and specify the hInstance you need. For example:

HINSTANCE hInstance = GetModuleHandle("myDll");
char buffer[1024];
::LoadString(hInstance, IDS_MY_STRING, buffer, 1024);

HTH

K.


Ash to ash and clay to clay, if the enemy doesn't get you, your own folk may.

[Erich Hermann]

this is not the point. I know how to use e.g. LoadString and how to specify different handles for different modules.

The problem is, a resource-constant e.g. IDS_MY_STRING ist defined in the resource.h of the extension-dll. Now I want to load the string from code from within the exe, i.e. LoadString(IDS_MY_STRING). But, the problem is, the symbolic constant IDS_MY_STRING is not known in the context of the exe.

_____________________________________________________________________
anti-spam: remove dashes in mail-adress to send mail
Erich Hermann
ETAS GmbH & Co. KG e-mail: [email protected]
Borsigstr. 10 Phone: (+49)711-89661-144
D-70469 Stuttgart Fax: (+49)711-89661-107

[Gomez Addams]

See post 1286 on this board. I would copy it but it's kind of long.

[Erich Hermann]

Still not the point I'm looking for.

Like in my example, I have a string defined in my DLL, referenced by the symbol IDS_MY_STRING. This symbol is defined in the DLL-resource.h like:

#define IDS_MY_STRING 10000

From within my EXE I want to load this string, e.g.

CString s; s.LoadString( IDS_MY_STRING );

Since the resource number 10000 is not present in my exe, the framework loads the string from my extension-DLL. Fine.

But the problem is, the symbol IDS_MY_STRING is not known in my EXE, because I cannot include the DLL's-resource.h (it defines several other constants that interfere with constants of the same name in the exe's-resource.h).

So what is a common solution to get only a part of the DLL's-resource.h included in the exe???

Erich

_____________________________________________________________________
anti-spam: remove dashes in mail-adress to send mail
Erich Hermann
ETAS GmbH & Co. KG e-mail: [email protected]
Borsigstr. 10 Phone: (+49)711-89661-144
D-70469 Stuttgart Fax: (+49)711-89661-107

[Karl]

1) you may use #ifdef in your include file to have what you want in your dll and in your exe, using preprocessor definitions.

2) you may define a function in your dll which load the good resource (take care of hInstance). This function may be called by your exe;

K.


Ash to ash and clay to clay, if the enemy doesn't get you, your own folk may.

[Dave Lorde]

Have a look at AfxSetResourceHandle( HINSTANCE hInstResource );

Use this function to set the HINSTANCE handle that determines from where the default resources of the application are loaded.

Dave