VC++：修改按钮WNDPROC回调函数（控件子类化）

最新推荐文章于 2024-05-14 13:02:31 发布

原创最新推荐文章于 2024-05-14 13:02:31 发布 · 1.2k 阅读

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#c++

WNDPROC OldProc;

LRESULT NewWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_LBUTTONDOWN:
        {
            int i = 0;
        }
        break;
    case WM_RBUTTONDOWN:
        {
            int i = 0;
        }
        break;
    case WM_CREATE:
        break;
    default:
        break;
    }
    return CallWindowProc(OldProc, hWnd, message, wParam, lParam);
} 

m_hButton1 = CreateWindow(TEXT("button"), TEXT ("test"),
        WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, 550, 10, 160, 28,
        m_hWnd, (HMENU)BUTTON1, hInstance, NULL);

OldProc = (WNDPROC)GetWindowLong(m_hButton1,GWL_WNDPROC);
SetWindowLong(m_hButton1, GWL_WNDPROC, (LONG)NewWndProc);