MFC设置按钮颜色（Visual C++ 6.0），挺复杂，废了好大的劲才找到了答案：

https://www.codeproject.com/Articles/16020/Color-Button

分三步进行：

1. 添加事件

右击窗体 - 事件，选中WM_DRAWITEM，双击，进入OnDrawItem方法

MFC 设置按钮颜色_MFC教程

2. 在OnDrawItem方法中自定义代码

void CCheDlg::OnDrawItem(int nIDCtl, LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	if(nIDCtl == IDC_BUTTON1){
	
	    CDC dc;
		RECT rect;
		dc.Attach(lpDrawItemStruct ->hDC);  
		rect = lpDrawItemStruct->rcItem;     
		dc.Draw3dRect(&rect,RGB(255,255,255),RGB(0,0,0)); 
		dc.FillSolidRect(&rect,RGB(0,121,217));
 
		UINT state=lpDrawItemStruct->itemState;  
		if((state & ODS_SELECTED)) //按下的效果
		{
			dc.DrawEdge(&rect,EDGE_SUNKEN,BF_RECT);
		}
		
		dc.SetBkColor(RGB(0,121,217));   
		dc.SetTextColor(RGB(255,255,255));  
		
		TCHAR buffer[MAX_PATH];           //To store the Caption of the button.
		ZeroMemory(buffer,MAX_PATH );     //Intializing the buffer to zero
        ::GetWindowText(lpDrawItemStruct->hwndItem,buffer,MAX_PATH); 
		dc.DrawText(buffer,&rect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);
		dc.Detach();  
	}
	
	CDialog::OnDrawItem(nIDCtl, lpDrawItemStruct);
}

3. 对于需要设置颜色的按钮，在属性中勾选“所有者绘制”

MFC 设置按钮颜色_MFC教程_02

 

效果：

MFC 设置按钮颜色_Windows桌面开发_03