problem passing managed form's handle to unmanaged dll native code function

[James_dean]

I want to call the following function in a native code dll from my managed code:
bool myInstallFunc(HWND hWnd, LPTSTR param1, DWORD param2, LPTSTR param3);

I tried this in my code but i get all sorts of errors but i think the format is correct........

[DllImport("myInstaller", CharSet=CharSet::Ansi)]
extern "C" bool myInstallFunc([MarshalAs(UnmanagedType::HWND)]void* hWnd, [MarshalAs(UnmanagedType::LPTSTR)]String^ pText, [MarshalAs(UnmanagedType::DWORD)]unsigned long^ param, [MarshalAs(UnmanagedType::LPTSTR)]String^ uType);

[James2007]

[DllImport("myInstallFunc",CharSet=CharSet::Ansi)] bool myInstallFunc(System::IntPtr hWnd, [MarshalAs(UnmanagedType::LPTSTR)]String^ pText, unsigned long param2, [MarshalAs(UnmanagedType::LPTSTR)]String^ uType);




And the MarshalAs attribute is probably not necessary, see CharSet::Ansi of the DllImport attribute. It should be done implicitally.