1.参见msdn
CWnd::OnCtlColor
This method is called by the framework when a child control is about to be drawn. Most controls send this message to their parent, usually a dialog box, to prepare the pDC for drawing the control using the correct colors.
afx_msg HBRUSH OnCtlColor( CDC* pDC, CWnd* pWnd, UINT nCtlColor );
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
2.要通过case确保你选择的控件的类型,不能仅仅按照msdn上给出的例子,直接查找控件的ID,否则达不到预期的效果