1812 error when trying to create dialog 2

[snuv]

I have a very small dll that only contains 1 simple dialog with two member variables

#define DLLExport _declspec( dllexport )
extern "C"
{
	DLLExport int GetUserLoginAuto(char * pszUserName, BOOL* pbPermission);
}

int GetUserLoginAuto(char * pszUserName, BOOL* pbPermission)
{
	CPermissions test;
	int nRet = test.DoModal();
	*pbPermission = test.m_bAutoLogin;
	if (nRet !=IDOK)
		test.m_nErrorCode = nRet;
	return test.m_nErrorCode;
}

message boxes work ok but the do modal returns -1 and the last error is 1812
Can anyone shed any light on this one?




Go not to cats for advice for they will just walk over the keyboard

 

[tchouch]

The problem with MFC DLLs is wrong ResourceHandle (it is the handle of executable called LoadLibrary(), not dll!). You can change this handle with AfxSetResourceHandle(m_Hinst_of_your_dll) and then call DoModal().
Do not forget to restore old handle after it!

 

[ArkM]

1812 - ERROR_RESOURCE_DATA_NOT_FOUND.
See MSDN for AFX_MANAGE_STATE macros. There are a lot of articles about 'howto: Properly Export Functions Using the MFC Shared Library' and related DLL/CDialog/DoModal issues (there are some special cases on this topic). May be it helps...

 

[snuv]

Thanks for the help
problem solved



Go not to cats for advice for they will just walk over the keyboard