设置字体的方法可行,不过不符合要求,我只是想改变行的高度,并不想改变字体。 TO ghz(浪子) : 我试过了,不行,不知道是不是我的代码不对,你能给出具体的代码吗?谢谢了
那个SendMessage(WM_WINDOWPOSCHANGED,0,0)方法也要Owner Draw风格。 用SetFont也是, 要求必须是Owner Draw风格,这是Codeguru上的一篇文章:Changing row height in owner drawn control-------------------------------------------------------------------------------- When you change the font of a list view control, the control or its parent window does not get a chance to respecify the height of the rows. No WM_MEASUREITEM message is sent to the controls parent window. The net effect is that when the font is changed for the control, the row height is no longer valid. Here's a work around that forces the WM_MEASUREITEM message to be generated. Step 1: Add handler for WM_SETFONT The WM_MEASUREITEM message is sent when the control is created. Fortunately this message is also sent whenever the control is resized. Since we want the row height to be adjusted when the font changes, what better place to do thin than in the WM_SETFONT handler. In OnSetFont() we fool Windows into thinking that the window size of the control has changed. We do this by sending the WM_WINDOWPOSCHANGED message to the control which then gets handled by the default window procedure for the control. Note that we haven't specified the SWP_NOSIZE flag and we set the width and height field in the WINDOWPOS structure equal to the existing dimension. For some reason, the Class Wizard did not have the WM_SETFONT message in its list of window messages. You will have to add the message map entry yourself. It is important to place the entries outside of the block used by the Class Wizard, otherwise the next you make any change with the wizard, our manual changes will be lost. // In the header file //{{AFX_MSG(CMyListCtrl) : : //}}AFX_MSG afx_msg LRESULT OnSetFont(WPARAM wParam, LPARAM); afx_msg void MeasureItem ( LPMEASUREITEMSTRUCT lpMeasureItemStruct ); DECLARE_MESSAGE_MAP() ////////////////////////////////////////////////////////////////////// // In the cpp file BEGIN_MESSAGE_MAP(CMyListCtrl, CListCtrl) //{{AFX_MSG_MAP(CMyListCtrl) : : //}}AFX_MSG_MAP ON_MESSAGE(WM_SETFONT, OnSetFont) ON_WM_MEASUREITEM_REFLECT( ) END_MESSAGE_MAP() LRESULT CMyListCtrl::OnSetFont(WPARAM wParam, LPARAM) { LRESULT res = Default(); CRect rc; GetWindowRect( &rc ); WINDOWPOS wp; wp.hwnd = m_hWnd; wp.cx = rc.Width(); wp.cy = rc.Height(); wp.flags = SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOZORDER; SendMessage( WM_WINDOWPOSCHANGED, 0, (LPARAM)&wp ); return res; }Step 2: Add handler for WM_MEASUREITEM Since we want our CListCtrl derived class to be modular, we will handle the WM_MEASUREITEM message within this class. The message however, is sent to the parent window, so we use message reflection. Again, the Class Wizard is not much help. We have to manually add the entry in the message map and update the header file. See the code snippet in step one for this. void CMyListCtrl::MeasureItem ( LPMEASUREITEMSTRUCT lpMeasureItemStruct ) { LOGFONT lf; GetFont()->GetLogFont( &lf ); if( lf.lfHeight < 0 ) lpMeasureItemStruct->itemHeight = -lf.lfHeight; else lpMeasureItemStruct->itemHeight = lf.lfHeight; }
要在程序初始化时调用SendMessage(WM_WINDOWPOSCHANGED,0,0)时才调用OnMeasureItem,
具体的例子以前在Codeguru上见过,你可以去查查http://www.codeguru.com/
TO ghz(浪子) :
我试过了,不行,不知道是不是我的代码不对,你能给出具体的代码吗?谢谢了
用SetFont也是,
要求必须是Owner Draw风格,这是Codeguru上的一篇文章:Changing row height in owner drawn control--------------------------------------------------------------------------------
When you change the font of a list view control, the control or its parent window does not get a chance to respecify the height of the rows. No WM_MEASUREITEM message is sent to the controls parent window. The net effect is that when the font is changed for the control, the row height is no longer valid.
Here's a work around that forces the WM_MEASUREITEM message to be generated. Step 1: Add handler for WM_SETFONT
The WM_MEASUREITEM message is sent when the control is created. Fortunately this message is also sent whenever the control is resized. Since we want the row height to be adjusted when the font changes, what better place to do thin than in the WM_SETFONT handler. In OnSetFont() we fool Windows into thinking that the window size of the control has changed. We do this by sending the WM_WINDOWPOSCHANGED message to the control which then gets handled by the default window procedure for the control. Note that we haven't specified the SWP_NOSIZE flag and we set the width and height field in the WINDOWPOS structure equal to the existing dimension.
For some reason, the Class Wizard did not have the WM_SETFONT message in its list of window messages. You will have to add the message map entry yourself. It is important to place the entries outside of the block used by the Class Wizard, otherwise the next you make any change with the wizard, our manual changes will be lost. // In the header file
//{{AFX_MSG(CMyListCtrl)
:
:
//}}AFX_MSG
afx_msg LRESULT OnSetFont(WPARAM wParam, LPARAM);
afx_msg void MeasureItem ( LPMEASUREITEMSTRUCT lpMeasureItemStruct );
DECLARE_MESSAGE_MAP()
//////////////////////////////////////////////////////////////////////
// In the cpp file
BEGIN_MESSAGE_MAP(CMyListCtrl, CListCtrl)
//{{AFX_MSG_MAP(CMyListCtrl)
:
:
//}}AFX_MSG_MAP
ON_MESSAGE(WM_SETFONT, OnSetFont)
ON_WM_MEASUREITEM_REFLECT( )
END_MESSAGE_MAP()
LRESULT CMyListCtrl::OnSetFont(WPARAM wParam, LPARAM)
{
LRESULT res = Default(); CRect rc;
GetWindowRect( &rc ); WINDOWPOS wp;
wp.hwnd = m_hWnd;
wp.cx = rc.Width();
wp.cy = rc.Height();
wp.flags = SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOZORDER;
SendMessage( WM_WINDOWPOSCHANGED, 0, (LPARAM)&wp ); return res;
}Step 2: Add handler for WM_MEASUREITEM
Since we want our CListCtrl derived class to be modular, we will handle the WM_MEASUREITEM message within this class. The message however, is sent to the parent window, so we use message reflection. Again, the Class Wizard is not much help. We have to manually add the entry in the message map and update the header file. See the code snippet in step one for this.
void CMyListCtrl::MeasureItem ( LPMEASUREITEMSTRUCT lpMeasureItemStruct )
{
LOGFONT lf;
GetFont()->GetLogFont( &lf ); if( lf.lfHeight < 0 )
lpMeasureItemStruct->itemHeight = -lf.lfHeight;
else
lpMeasureItemStruct->itemHeight = lf.lfHeight;
}
1、添加:
protected:
//{{AFX_MSG(CMyListCtrl)
afx_msg void MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct);
//}}AFX_MSG2、BEGIN_MESSAGE_MAP(CMyListCtrl, CListCtrl)
//{{AFX_MSG_MAP(CMyListCtrl)
ON_WM_MEASUREITEM()
//}}AFX_MSG_MAP
ON_WM_MEASUREITEM_REFLECT( )END_MESSAGE_MAP()3、void CMyListCtrl::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct)
{
lpMeasureItemStruct->itemHeight = 50;//改成你想要的行高
}4、别忘了给它发个消息 m_list.SendMessage(WM_WINDOWPOSCHANGED,0,0);
(注:2000下可不太好使)
我照你说的那样做了,可是还是不行,搞不懂错在哪里.
你可不可以给我发个例程,麻烦你了!
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