[cairo] Win32 Surface Mem increase and app crash

[小帅猪]

In MFC app, I add code in OnDraw();


{
    cario_surface_t* surface = cairo_win32_surface_create(pDC->GetSafeHDC());
    cairo_t* cr = cairo_create(surface);
    //Draw something;
    cairo_surface_destroy(surface);
    cairo_destroy(cr);
}


It works, but when redrawing like maxize window, the memory increase, in the end, the application crash.
Is there any problem? Help me.
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