给列表控件发WM_VSCROLL消息的问题

[flyhigh]

我在模拟列表控件的滚动条消息时给列表控件发WM_VSCROLL消息。其它CODE都正常，但是SB_TRUMBTRACK和SB_TRUMBPOSITION不起作用。通过Spy++跟踪内部滚动条发的消息，记录发消息序列，我再一一重复也不行。
没有办法，只有向各位大侠求助了！

[king820802]

你可以把消息截获看看具体是什么参数，然后再模拟！
应该是你消息的值有问题

[xjtuzhw]

有个HTVSCROLL，你试下发送：
::SendMessage(m_list.m_hWnd,WM_VSCROLL,HTVSCROLL,(LPARAM)100);

[DentistryDoctor]

主要看参数

[LegerWu]

我怀疑你的消息参数有问题：
SB_THUMBPOSITION-The user has dragged the scroll box (thumb) and released the mouse button. The high-order word indicates the position of the scroll box at the end of the drag operation.
SB_THUMBTRACK-The user is dragging the scroll box. This message is sent repeatedly until the user releases the mouse button. The high-order word indicates the position that the scroll box has been dragged to.

[flyhigh]

参数没有问题。因为在其它如树控件上能够正常运行。

[flyhigh]

void CScrollDlg::OnButton3()
{
m_ctrlListCtrl.SetFocus();
m_ctrlListCtrl.SetCapture();
m_ctrlListCtrl.SendMessage(WM_SYSCOMMAND,SC_VSCROLL,0);
m_ctrlListCtrl.SendMessage(WM_VSCROLL,MAKELONG(SB_THUMBTRACK,10),0);
m_ctrlListCtrl.SendMessage(WM_VSCROLL,MAKELONG(SB_ENDSCROLL,0),0);
ReleaseCapture();
}
上面是我的测试代码。

[mynamelj]

直接用GetScrollBarCtrl()进行操作不行吗？

[flyhigh]

我是想通过在外面模拟滚动条消息来滚动窗口。所在不能用GetScrollBarCtrl()

[mynamelj]

外部也可以啊

HWND hwnd = FindWindow(...);
if( hwnd )
{
CScrollBar* pBar = CWnd::FromHandle(hwnd);
}

[mynamelj]

HWND hwnd = FindWindow(...);
if( hwnd )
{
CScrollBar* pBar = (CScrollBar*)CWnd::FromHandle(hwnd);
}

[Practise_Think]

确认相应的参数值

[flyhigh]

问题已经解决。
只是用的方法是修改ListCtrl。