MP4Sys_StartVideoPreview (m_hChannelHandle [7], m_hWnd, & amp; M_PreviewRect, true, 0, 25);

Ps: successful initialization interface card, channel 7 has opened, m_hwnd for dialog box handle, m_PreviewRect. Left=8/. Top=8/. Right=712/. Bottom=488

MP4Sys_StartVideoPreview () call fails
Already know the return error number: ERR_DDRAW_CREATE_FAILED

Could you tell me how to solve this error?