CWinApp::m_hInstance

Artigo
08/25/2010

Corresponde à hInstance parâmetro passado pelo Windows para WinMain.

HINSTANCE m_hInstance;

Comentários

The m_hInstance membro de dados é um identificador para a instância corrente do aplicativo em execução no Windows. Isso é retornado pela função global AfxGetInstanceHandle.m_hInstance é uma variável pública de tipo HINSTANCE.

Exemplo

// Typically you do not need to pass the application's hInstance
// to Windows APIs directly because there are equivalent MFC
// member functions that pass the hInstance for you.  The following
// example is not typical:

HCURSOR hCursor;
hCursor = ::LoadCursor(AfxGetApp()->m_hInstance, 
   MAKEINTRESOURCE(IDC_MYCURSOR));

// A more direct way to get the application's hInstance is to
// call AfxGetInstanceHandle:
hCursor = ::LoadCursor(AfxGetInstanceHandle(), 
   MAKEINTRESOURCE(IDC_MYCURSOR));

// If you need the hInstance to load a resource, it is better
// to call AfxGetResourceHandle instead of AfxGetInstanceHandle:
hCursor = ::LoadCursor(AfxGetResourceHandle(), 
   MAKEINTRESOURCE(IDC_MYCURSOR));

// A better way to load the cursor resource is to call
// CWinApp::LoadCursor
hCursor = AfxGetApp()->LoadCursor(IDC_MYCURSOR);