Posted by: nostra
« on: February 23, 2009, 02:08:12 am »OK, I think I'll post your code in the development section.
Feel free to upload more code, if you have smth new
Feel free to upload more code, if you have smth new
Posted by: TnS
« on: February 22, 2009, 08:35:49 pm »Thanks! It works perfectly. 
I uploaded the working code here. I think it is a good starting point if someone else also wants to make a C++ plugin.
I uploaded the working code here. I think it is a good starting point if someone else also wants to make a C++ plugin.
Posted by: nostra
« on: February 22, 2009, 04:10:46 pm »OK, now I know what to do:
You should use the __stdcall call convention and export the functions using a definition file instead of __declspec(dllexport) defining proper function names in a definition file:
P.S. Add the def file to the linker options of the project.
You should use the __stdcall call convention and export the functions using a definition file instead of __declspec(dllexport) defining proper function names in a definition file:
Code: ("PvdImportPlugin.def") [Select]
LIBRARY PvdImportPlugin.dll
EXPORTS
GetName
GetDescription
GetType
GetVersionSupported
BeginWork
EndWork
GetFilter
Parse
GetPluginLanguage
GetPluginVersion
CheckPVDVersion
CanConfig
Configure
Code: ("PvdImportPlugin.h") [Select]
#define PVDIMPORTPLUGIN_API extern "C"
#define PvdCallType __stdcall
//#define PvdCallType
typedef bool (PvdCallType *TPluginImpGenMovieCallback)(const WCHAR*);
typedef bool (PvdCallType *TPluginImpGenPersonCallback)(const WCHAR*);
PVDIMPORTPLUGIN_API WCHAR* PvdCallType GetName(int LangID);
PVDIMPORTPLUGIN_API WCHAR* PvdCallType GetDescription(int LangID);
PVDIMPORTPLUGIN_API SHORT PvdCallType GetType();
PVDIMPORTPLUGIN_API DWORD PvdCallType GetVersionSupported();
PVDIMPORTPLUGIN_API int PvdCallType BeginWork();
PVDIMPORTPLUGIN_API void PvdCallType EndWork();
PVDIMPORTPLUGIN_API WCHAR* PvdCallType GetFilter(HWND AppHandle, int LangID, WCHAR* CustomFields);
PVDIMPORTPLUGIN_API void PvdCallType Parse(HWND AppHandle, int LangID, WCHAR* FileName, TPluginImpGenMovieCallback MovieCallback, TPluginImpGenPersonCallback HumanCallback, WCHAR* CustomFields);
PVDIMPORTPLUGIN_API int PvdCallType GetPluginLanguage();
PVDIMPORTPLUGIN_API char* PvdCallType GetPluginVersion();
PVDIMPORTPLUGIN_API BOOL PvdCallType CheckPVDVersion(int V);
PVDIMPORTPLUGIN_API BOOL PvdCallType CanConfig();
PVDIMPORTPLUGIN_API BOOL PvdCallType Configure(int LangID, HWND AppHandle, WCHAR* CustomFields);
Code: ("PvdImportPlugin.cpp") [Select]
// PvdImportPlugin.cpp : Defines the exported functions for the DLL application.
//
#include "stdafx.h"
#include "PvdImportPlugin.h"
PVDIMPORTPLUGIN_API WCHAR* PvdCallType GetName(int LangID)
{
//MessageBox(NULL, L"", L"GetName", MB_OK);
return L"TestName";
}
PVDIMPORTPLUGIN_API WCHAR* PvdCallType GetDescription(int LangID)
{
//MessageBox(NULL, L"", L"GetDescription", MB_OK);
return L"TestDesc";
}
PVDIMPORTPLUGIN_API SHORT PvdCallType GetType()
{
//MessageBox(NULL, L"", L"GetType", MB_OK);
return 3;
}
PVDIMPORTPLUGIN_API DWORD PvdCallType GetVersionSupported()
{
//MessageBox(NULL, L"", L"GetVersionSupported", MB_OK);
return 0; // All
}
PVDIMPORTPLUGIN_API int PvdCallType BeginWork()
{
//MessageBox(NULL, L"", L"BeginWork", MB_OK);
return 0;
}
PVDIMPORTPLUGIN_API void PvdCallType EndWork()
{
//MessageBox(NULL, L"", L"EndWork", MB_OK);
}
PVDIMPORTPLUGIN_API WCHAR* PvdCallType GetFilter(HWND AppHandle, int LangID, WCHAR* CustomFields)
{
//MessageBox(NULL, L"", L"GetFilter", MB_OK);
return L"Test Files|*.test";
}
PVDIMPORTPLUGIN_API void PvdCallType Parse(HWND AppHandle, int LangID, WCHAR* FileName, TPluginImpGenMovieCallback MovieCallback, TPluginImpGenPersonCallback HumanCallback, WCHAR* CustomFields)
{
//MessageBox(NULL, L"", L"Parse", MB_OK);
}
PVDIMPORTPLUGIN_API int PvdCallType GetPluginLanguage()
{
//MessageBox(NULL, L"", L"GetPluginLanguage", MB_OK);
return 0;
}
PVDIMPORTPLUGIN_API char* PvdCallType GetPluginVersion()
{
//MessageBox(NULL, L"", L"GetPluginVersion", MB_OK);
return "0.1.1.2";
}
PVDIMPORTPLUGIN_API BOOL PvdCallType CheckPVDVersion(int V)
{
//MessageBox(NULL, L"", L"CheckPVDVerion", MB_OK);
return true;
}
PVDIMPORTPLUGIN_API BOOL PvdCallType CanConfig()
{
//MessageBox(NULL, L"", L"CanConfig", MB_OK);
return false;
}
PVDIMPORTPLUGIN_API BOOL PvdCallType Configure(int LangID, HWND AppHandle, WCHAR* CustomFields)
{
//MessageBox(NULL, L"", L"Configure", MB_OK);
return false;
}
P.S. Add the def file to the linker options of the project.
Posted by: nostra
« on: February 22, 2009, 04:16:39 am »It seems to be smth wrong with calling convention, but I do not really get it. Your library seems to work correctly if
1. I import the function without stdcall operator
or
2. You declare the "PvdCallType" with __stdcall and I import the function with stdcall in my code, but strangely the names of the exported function are changed to smth like _GetName@4, so I would need to pass these names while using GetProcAddress
I do not really like both ways as I would need to change all existing plugins to fit the new system.
Do you know why the names of exported functions get changed with __stdcall and how to prevent it?
P.S. It seems like you are preparing a kind of template for creating plugins in Visual Studio. Good idea. It would be great to have such a template.
1. I import the function without stdcall operator
or
2. You declare the "PvdCallType" with __stdcall and I import the function with stdcall in my code, but strangely the names of the exported function are changed to smth like _GetName@4, so I would need to pass these names while using GetProcAddress
I do not really like both ways as I would need to change all existing plugins to fit the new system.
Do you know why the names of exported functions get changed with __stdcall and how to prevent it?
P.S. It seems like you are preparing a kind of template for creating plugins in Visual Studio. Good idea. It would be great to have such a template.
Posted by: TnS
« on: February 21, 2009, 08:58:43 pm »I made a simple import plugin in C++ but it crashes Personal Video Database right after the splash screen.
Tested with version 0.9.8.2 and 0.9.9.4 beta.
PVD calls the following functions before it crashes: GetVersionSupported, CheckPVDVerion, GetType, GetName, GetDescription, CanConfig, GetPluginVersion, GetPluginLanguage, GetName.
First error message:
"Exception EAccessViolation in module viddb.exe at 00006121.
Access violation at address 00406121 in module 'viddb.exe'. Read of address 00000009."
Second error message:
"Unexpected exception:
A call to an OS function failed"
I uploaded the DLL and its source to here. Made with Visual C++ 2008 Express Edition.
Tested with version 0.9.8.2 and 0.9.9.4 beta.
PVD calls the following functions before it crashes: GetVersionSupported, CheckPVDVerion, GetType, GetName, GetDescription, CanConfig, GetPluginVersion, GetPluginLanguage, GetName.
First error message:
"Exception EAccessViolation in module viddb.exe at 00006121.
Access violation at address 00406121 in module 'viddb.exe'. Read of address 00000009."
Second error message:
"Unexpected exception:
A call to an OS function failed"
I uploaded the DLL and its source to here. Made with Visual C++ 2008 Express Edition.