trouble with wxDynamicLibrary Topic is solved

[fischi]

Yes i have compiled the main app and the plugin as using wxWidgets as DLL. The attachment of the project will follow soon. At the moment there always occurs a failure when i try to upload the files.

[fischi]

the project files

[tan]

Hi,
if you have compiled the main app and the plugin using wxWidgets as DLL, you don't need to init wxWidgets library from DLL. Just comment out this code in the meineDLL.cpp:

Code: Select all

#include "meineDLL.h"

	extern "C" __declspec(dllexport) IEditorPlugin* CreatePlugin(){return new MyPlugin; }		
/*															
	IMPLEMENT_APP_NO_MAIN(PluginDLLApp)												
																					
	BOOL APIENTRY DllMain( HANDLE hModule,											
                       DWORD  ul_reason_for_call,									
                       LPVOID lpReserved											
	                                         )										
	{																				
		    switch (ul_reason_for_call)												
			{																		
                case DLL_PROCESS_ATTACH:											
                {       wxSetInstance((HINSTANCE)hModule);							
                        int argc = 0;												
                        char **argv = NULL;											
                        wxEntryStart(argc, argv);									
                }																	
                break;																
																					
                case DLL_THREAD_ATTACH:												
                break;																
																					
                case DLL_THREAD_DETACH:												
                break;																
																					
                case DLL_PROCESS_DETACH:											
                 wxEntryCleanup();
				break;																
			}																		
		return TRUE;																
	}																				
*/
void MyPlugin::EditNode()
{
	
	wxMessageBox(wxT("Hallo."));
	
   }

extern "C" void WXEXPORT DLLFunction(void) 
{ 

        wxMessageBox(wxT("Hallo2."));
} 

Look here for more information:
http://forums.wxwidgets.org/viewtopic.php?t=12680

[Widgets]

Good thing you uploaded your project files
It looks right now as though I have been wrong all along and had my current project, as well a your sample compiled with a _static_ version of wxWidgets - and both work as expected.

I'm still in the process of sorting it all out and from the looks of things it might take me a bit - but in fact I'm not too keen on redoing my current project - especially since it does everything I want the way I need it.
I did have all of the wxWidgets stuff compiled to produce a DLL, but somewhere along the way, when I set up my current project, it turns out I went back to my static library directories and because it all worked - even though I was under the impression it wasn't supposed to - I never really questioned and investigated it further.
So perhaps that is the real 'secret'
Have a look at my project files and you will notice that in the include directories path and the linker library path I have used vc_lib instead of vc_dll.
I'll attach a release version of the compiled program and plugin dll to let you try and see if it all runs OK on your system as it does on mine. - tried, but the file is too big, of course - each is over 1 MB
Looks like I may have to recompile even my project to use wxWidgets as a DLL

[fischi]

Hi tan. It works! That was the hole secret to comment out these lines. You helped me really a lot. Thank you very much. Special thanks to Widgets too, because he tried all the time to find a solution without giving up. So both of you, thank you really very very much.

[Widgets]

Thanks for letting us know; It is always good for the next guy who has the same problem to find the real solution

I might even need it myself if I decide to move to a Dll based app.

[Widgets]

After spending a bit more time at it, I have been able to compile and link the basic plugin example posted by upCase
http://www.upcase.de/stuff/wxPlugin.zip
as two linked programs, one an exe, the plugin as a dll, both using wxWidgets as DLLs and I see the same problem fischi described and showed.
When I move the pop up dialog over the main application, its main frame does not update.
When - for the plugin only - I comment out the section recommended by tan - it all works as "advertised"

So now I have to decide whether I want to carry on with my statically linked version or modify things and move to a DLL based version.