CAnimateCtrl的奇怪问题

[weiyan]

CAnimateCtrl m_animate;
m_animate.Create(WS_VISIBLE|ACS_CENTER,CRect(25,20,505,340),this,0);
m_animate.Open("d:\\g.avi");
m_animate.Seek(1);
m_animate.Close();
没有任何显示
但如果在第四行（m_animate.Seek(1);）后加入AfxMessageBox("");就可以显示出一帧的图像来，怎么回事？

[vcforever]

试一试下边这个

CAnimateCtrl cAnimCtrl;

// Create the animation control.
if (!cAnimCtrl.Create(WS_CHILD|WS_VISIBLE|ACS_CENTER,
CRect(10,10,100,100), pParentWnd, 1))
return false;

// Open the AVI file.
if (!cAnimCtrl.Open(_T("myavi.avi")))
return false;

// Pump message from the queue until the stop play message is received.
MSG msg;
while (GetMessage(&msg, NULL, 0, 0) && (msg.message != WM_STOPCLIP))
{
switch (msg.message)
{
// Start playing from the first frame to the last,
// continuously repeating.
case WM_PLAYCLIP:
if (!cAnimCtrl.Play(0, -1, -1))
return false;
break;

// Show the first frame.
case WM_SHOWFIRSTFRAME:
if (!cAnimCtrl.Seek(0))
return false;
cAnimCtrl.RedrawWindow();
break;

// Show the last frame.
case WM_SHOWLASTFRAME:
if (!cAnimCtrl.Seek(-1))
return false;
cAnimCtrl.RedrawWindow();
break;
}

TranslateMessage(&msg);
DispatchMessage(&msg);
}

cAnimCtrl.Stop();
cAnimCtrl.Close();

[踏岸寻柳]

mark

[weiyan]

多谢多谢，明白了，偶加上一条语句m_animate.RedrawWindow();就可以了：）