Passing structure form VC++ to C# Dll

[Anu_Bala]

Hi, im using C# dll in VC++ application.I have somedetails in VC++ like PageNumer pageTitle PageDesc BoxDetail . I have to pass this to C# Dll. So i made one structure in VC++,then i pas that to C#.But i could't do that.Pls help me. VC++ Function:

struct SCS3OverVwPg
{
__int32 iOvrPgNo;
char sOvrPgTitle[30]; //OverView Page Title
};

void CToolTab::SendOverview()
{
SCS3OverVwPg *pOverVw = 0;
pOverVw = new SCS3OverVwPg;
Globals1::gwtoolbar->SetTree(pOverVw);
}

C# function:

public struct SCS3Over
{
Int32 iOvrPgNo;
char[] sOvrPgTitle;
}

public void SetTree(SCS3Over x)
{
MessageBox.Show("Data received");
}

If i do like this,it shows error error C2664: 'Tabcontrol::ToolBar::SetTree' : cannot convert parameter 1 from 'SCS3OverVwPg *' to 'SCS3Over' If i change name in C# dll to SCS3OverwPg, it show error of structure redifinition Pls help me.

Anu

[Andreoli Carlo]

the structure (SCS3Over ) in c# dll is public? if it's public you can directly use it in visual c++ without having to redeclare it...so your visual c code:

//struct SCS3OverVwPg 
//{ 
// __int32 iOvrPgNo;       
// char sOvrPgTitle[30]; //OverView Page Title 
//}; 
  
void CToolTab::SendOverview() 
   {  
     //SCS3OverVwPg *pOverVw = 0; 
     //pOverVw = new SCS3OverVwPg;     
     Globals1::SCS3Over tmp; //use the correct namespace to go to SCS3Over
     tmp.iOvrPgNo=1;
     tmp.sOvrPgTitle="ciao";
     Globals1::gwtoolbar->SetTree(tmp); 
   }