关于MFC里自己写Clistbox的问题。

来源：百度知道 编辑：UC知道 时间：2024/05/20 09:21:53
就是想改变clistbox里的背景颜色,派生一个clistbox类，然后修改OnCtlColor函数，发现没用，，，文字没变。
但是不派生，直接在对话框中修改OnCtlColor函数，就可以改变背景颜色，，，
我不知道为什么，有点不明白呢。
积分八多，，，省些哈。。。

自己看看吧，这是最权威的函数说明。

CWnd::OnCtlColor
afx_msg HBRUSH OnCtlColor( CDC* pDC, CWnd* pWnd, UINT nCtlColor );

Return Value

OnCtlColor must return a handle to the brush that is to be used for painting the control background.

Parameters

pDC

Contains a pointer to the display context for the child window. May be temporary.

pWnd

Contains a pointer to the control asking for the color. May be temporary.

nCtlColor

Contains one of the following values, specifying the type of control:

CTLCOLOR_BTN Button control

CTLCOLOR_DLG Dialog box

CTLCOLOR_EDIT Edit control

CTLCOLOR_LISTBOX List-box control

CTLCOLOR_MSGBOX Message box

CTLCOLOR_SCROLLBAR Scroll-bar control

CTLCOLOR_STATIC Static control
Remarks

The framework calls this member function when a child control is about to be draw