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guchanfeng 2004-11-20
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再问一题：当按下滚动条的LineRight，假设向右滚动20，请问这个20是代表什么，是20个像素还是20%？
sms88 2004-11-20
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对话框的滚动条是子窗口，那当然具有ID了
guchanfeng 2004-11-20
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视图的滚动条是不是属于视图的子窗口
老夏Max 2004-11-20
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CWnd::GetScrollBarCtrl ！！！！！！！！！！！！！
CWnd::GetScrollBarCtrl
virtual CScrollBar* GetScrollBarCtrl( int nBar ) const;
Return Value
A sibling scroll-bar control, or NULL if none.
Parameters
nBar
Specifies the type of scroll bar. The parameter can take one of the following values:
SB_HORZ Retrieves the position of the horizontal scroll bar.
SB_VERT Retrieves the position of the vertical scroll bar.
Remarks
Call this member function to obtain a pointer to the specified sibling scroll bar or splitter window.
This member function does not operate on scroll bars created when the WS_HSCROLL or WS_VSCROLL bits are set during the creation of a window. The CWnd implementation of this function simply returns NULL. Derived classes, such as CView, implement the described functionality.
CWnd::GetScrollBarCtrl
virtual CScrollBar* GetScrollBarCtrl( int nBar ) const;
Return Value
A sibling scroll-bar control, or NULL if none.
Parameters
nBar
Specifies the type of scroll bar. The parameter can take one of the following values:
SB_HORZ Retrieves the position of the horizontal scroll bar.
SB_VERT Retrieves the position of the vertical scroll bar.
Remarks
Call this member function to obtain a pointer to the specified sibling scroll bar or splitter window.
This member function does not operate on scroll bars created when the WS_HSCROLL or WS_VSCROLL bits are set during the creation of a window. The CWnd implementation of this function simply returns NULL. Derived classes, such as CView, implement the described functionality.
guchanfeng 2004-11-20
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其实我想明白窗口的滚动条和对话框的滚动条有什么区别。比如说对话框的滚动条是发送控件通知消息，为什么视图窗口的滚动条发送WM_HSROLL、WM_VSROLL？对话框的滚动条是具体的ID和CWnd类对象，
视图窗口的滚动条的ID和CWnd对象怎样求得？
视图窗口的滚动条的ID和CWnd对象怎样求得？
老夏Max 2004-11-20
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呵呵，想知道这些干什么？
操作他们不需要知道他们的ID。具体想干什么？说说，看看能不能帮你！
如果可以的话，可以将程序发到:xia_qingqi@broadxent.com.cn
我帮你看看！注明帖子的URL！
操作他们不需要知道他们的ID。具体想干什么？说说，看看能不能帮你！
如果可以的话，可以将程序发到:xia_qingqi@broadxent.com.cn
我帮你看看！注明帖子的URL！
guchanfeng 2004-11-20
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如果窗口放大或缩小了，滚动条也跟着变长或变短了，移动的距离也不一样，似乎20代表像素不成立。
bigrobert 2004-11-20
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我印象当中好像是20个像素。
