我的步骤:
首先将对话框的属性vertical scroll选中,然后是按Ctlr+w进入classwizard选中对话消息WM_OnVScroll,并添加它的响应函数,写入代码:(添加滚动条的代码,若闲麻烦,可以大致看一下)
void CSelfdefineTop::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
SCROLLINFO scrollinfo;
GetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
switch (nSBCode)
{
case SB_BOTTOM:
ScrollWindow(0,(scrollinfo.nPos-scrollinfo.nMax)*36);
scrollinfo.nPos = scrollinfo.nMax;
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
break;
case SB_TOP:
ScrollWindow(0,(scrollinfo.nPos-scrollinfo.nMin)*36);
scrollinfo.nPos = scrollinfo.nMin;
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
break;
case SB_LINEUP:
scrollinfo.nPos -= 1;
if (scrollinfo.nPos<scrollinfo.nMin)
{
scrollinfo.nPos = scrollinfo.nMin;
break;
}
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
ScrollWindow(0,10);
break;
case SB_LINEDOWN:
scrollinfo.nPos += 1;
if (scrollinfo.nPos>scrollinfo.nMax)
{
scrollinfo.nPos = scrollinfo.nMax;
break;
}
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
ScrollWindow(0,-10);
break;
case SB_PAGEUP:
scrollinfo.nPos -= 5;
if (scrollinfo.nPos<scrollinfo.nMin)
{
scrollinfo.nPos = scrollinfo.nMin;
break;
}
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
ScrollWindow(0,10*5);
break;
case SB_PAGEDOWN:
scrollinfo.nPos += 5;
if (scrollinfo.nPos>scrollinfo.nMax)
{
scrollinfo.nPos = scrollinfo.nMax;
break;
}
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
ScrollWindow(0,-10*5);
break;
case SB_ENDSCROLL:
// MessageBox("SB_ENDSCROLL");
break;
case SB_THUMBPOSITION:
// ScrollWindow(0,(scrollinfo.nPos-nPos)*10);
// scrollinfo.nPos = nPos;
// SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
break;
case SB_THUMBTRACK:
ScrollWindow(0,(scrollinfo.nPos-nPos)*36);
scrollinfo.nPos = nPos;
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
break;
}
CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}
这一段代码就是添加滚动条的,但如何实现鼠标的滚动轮去响应啊,请根据以上代码,写出响应的代码:
首先将对话框的属性vertical scroll选中,然后是按Ctlr+w进入classwizard选中对话消息WM_OnVScroll,并添加它的响应函数,写入代码:(添加滚动条的代码,若闲麻烦,可以大致看一下)
void CSelfdefineTop::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
SCROLLINFO scrollinfo;
GetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
switch (nSBCode)
{
case SB_BOTTOM:
ScrollWindow(0,(scrollinfo.nPos-scrollinfo.nMax)*36);
scrollinfo.nPos = scrollinfo.nMax;
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
break;
case SB_TOP:
ScrollWindow(0,(scrollinfo.nPos-scrollinfo.nMin)*36);
scrollinfo.nPos = scrollinfo.nMin;
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
break;
case SB_LINEUP:
scrollinfo.nPos -= 1;
if (scrollinfo.nPos<scrollinfo.nMin)
{
scrollinfo.nPos = scrollinfo.nMin;
break;
}
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
ScrollWindow(0,10);
break;
case SB_LINEDOWN:
scrollinfo.nPos += 1;
if (scrollinfo.nPos>scrollinfo.nMax)
{
scrollinfo.nPos = scrollinfo.nMax;
break;
}
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
ScrollWindow(0,-10);
break;
case SB_PAGEUP:
scrollinfo.nPos -= 5;
if (scrollinfo.nPos<scrollinfo.nMin)
{
scrollinfo.nPos = scrollinfo.nMin;
break;
}
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
ScrollWindow(0,10*5);
break;
case SB_PAGEDOWN:
scrollinfo.nPos += 5;
if (scrollinfo.nPos>scrollinfo.nMax)
{
scrollinfo.nPos = scrollinfo.nMax;
break;
}
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
ScrollWindow(0,-10*5);
break;
case SB_ENDSCROLL:
// MessageBox("SB_ENDSCROLL");
break;
case SB_THUMBPOSITION:
// ScrollWindow(0,(scrollinfo.nPos-nPos)*10);
// scrollinfo.nPos = nPos;
// SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
break;
case SB_THUMBTRACK:
ScrollWindow(0,(scrollinfo.nPos-nPos)*36);
scrollinfo.nPos = nPos;
SetScrollInfo(SB_VERT,&scrollinfo,SIF_ALL);
break;
}
CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
}
这一段代码就是添加滚动条的,但如何实现鼠标的滚动轮去响应啊,请根据以上代码,写出响应的代码:
鼠标的滚动轮是需要WM_MOUSEWHEEL来响应的,但我就是不知道怎么设置这个函数。
请知道的朋友写写代码啊,感激不尽!!!!!!!!!!
看MSDN啊