Managed C++/CLI

uus831 wrote:

1. I have a mixed mode program
(managed + unmanaged). Some where in the program i do this to get the HWND of a picture box which
is passed to an unmanaged function.

HWND hwnd = (HWND) pbSurfaceLeft->Handle.ToPointer();

Do i have to release the HWND when i'm done using it? If so, how to do in C++/CLI?

uus831 wrote:

2. This is not a C++/CLI question, but
it is related anyway, so i'll post it here.
Imagine i have a function

void Draw (CDC *pDC);

and i call it this way

Draw(this->GetDC());

Do i have to call ReleaseDC after that? If so how? I didnt save the pointer of GetDC(), as it was
only passed directly.

CDC *pDC = GetDC();
Draw(pDC);
ReleaseDC(pDC);

uus831 wrote:

3. When compiling with warning level
4, all unreferenced formal parameters are warned. How can i avoid that by adding code rather than
using #pragma disable?

fairose wrote:

baseStationNode = gcnew ArrayList();
baseStationNode->Add(baseStationNode);

abhiramsss wrote:

and pass this CString to Sendmessage as Wparam parameter to other remote process(iam using sockets for remote connevtion).

ref class Foo
{
  int value;
  String ^string;
public:
  Foo() {}
 
  // Copy constructor
  Foo(const Foo %f)
  {
    value = f.value;
    string = f.string;
  }
... // Rest of class code
};