left of '->GetStatus' must point to class/struct/union/generic type

LRESULT CALLBACK PlayWindow::PlayWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)//这是一个static成员函数

{

switch (uMsg)

{

case WM_LBUTTONDOWN:

if(m_pIPlayCtrl->GetStatus() == 3)

{

m_pIPlayCtrl->Pause();

}

break;

default:

return DefWindowProc(hWnd, uMsg, wParam, lParam);

}

return DefWindowProc(hWnd, uMsg, wParam, lParam);

}

由于PlayWindowProc是窗口过程，在类中定义成static成员函数，m_pIPlayCtrl是非static变量，访问出现问题。

解决该问题：可以在static成员函数[b]PlayWindowProc变为非static成员函数，另外添加一个static成员函数__[b]PlayWindowProc，调用PlayWindowProc，这样[b]PlayWindowProc就可以访问非static成员了。如下所示：[/b][/b][/b]

LRESULT CALLBACK PlayWindow::__PlayWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)

{

PlayWindow* pThis = reinterpret_cast<PlayWindow*>(GetWindowLong(hWnd, GWL_USERDATA));

if(pThis)

{

return pThis->PlayWindowProc(hWnd, uMsg, wParam, lParam);

}

return DefWindowProc(hWnd, uMsg, wParam, lParam);

}

//视频播放窗口的过程函数////////////////////////////////////////////////////////////////////////

LRESULT CALLBACK PlayWindow::PlayWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)

{

switch (uMsg)

{

case WM_LBUTTONDOWN:

if(m_pIPlayCtrl->GetStatus() == 3)

{

m_pIPlayCtrl->Pause();

}

break;

default:

return DefWindowProc(hWnd, uMsg, wParam, lParam);

}

return DefWindowProc(hWnd, uMsg, wParam, lParam);

}