WinForm窗口借助DLL显示MFC控件_mfc dll winform 窗口

1 DLL导出函数定义

注意示例代码使用.def文件定义导出函数

class ShowPropWndHelper
{
public:
    ShowPropWndHelper() : _unit(nullptr)
    {

    }

    ~ShowPropWndHelper()
    {
        Destroy();
    }

    bool Create(HWND parentWnd)
    {
        _wndAttach.Attach(parentWnd);
        CRect rcWnd;
        _wndAttach.GetClientRect(rcWnd);
        
 		//注意WinForm以DLL调用时直接使用父窗口，以源代码调用时需要使用父窗口的父窗口作为CMFCPropertyGridCtrl的父窗口
        CWnd* pwndParent = &_wndAttach;
#ifndef _USRDLL
        pwndParent = _wndAttach.GetParent();
        _wndAttach.ShowWindow(SW_HIDE);
        _wndAttach.MapWindowPoints(pwndParent, rcWnd);
#endif

        if (!_propCtrl.Create(WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_BORDER, rcWnd, pwndParent, _wndAttach.GetDlgCtrlID())) {
            _wndAttach.Detach();
            return false;
        }

        HDITEM hdItem;
        hdItem.mask = HDI_WIDTH;
        hdItem.cxy = 200;

        _propCtrl.SetVSDotNetLook(TRUE);
        _propCtrl.GetHeaderCtrl().SetItem(0, &hdItem);
        _propCtrl.EnableHeaderCtrl(TRUE, _T("参数"), _T("值"));
        _propCtrl.MarkModifiedProperties(TRUE);
        _propCtrl.EnableDescriptionArea(TRUE);
		
		//......
        return true;
    }

    void Destroy()
    {
        _propCtrl.DestroyWindow();
        _wndAttach.Detach();
    }

private:
    CMFCPropertyGridCtrl    _propCtrl;
    CWnd                    _wndAttach;
};

std::vector<ShowPropWndHelper*> s_vHelper;

bool AddItem(HWND parent)
{
    ShowPropWndHelper* it = new ShowPropWndHelper();
    if (nullptr == it) return false;

    it->Create(parent);
    s_vHelper.push_back(it);

    return true;
}

void ParamDestroyWnd();

bool ParamWndCreate(HWND hParentLeft, HWND hParentMiddle, HWND hParentRight)
{
    if (!IsWindow(hParentLeft) 
        || !IsWindow(hParentMiddle)
        || !IsWindow(hParentRight))
        return false;

    ParamDestroyWnd();

    return AddItem<CUnit_L>(hParentLeft) && AddItem<CUnit_M>(hParentMiddle) && AddItem<CUnit_R>(hParentRight);
}

void ParamDestroyWnd()
{
    std::for_each(s_vHelper.begin(), s_vHelper.end(), [](ShowPropWndHelper* it) {
        delete it;
        });
    s_vHelper.clear();
}

//DLL导出函数
bool __stdcall PLC_CreateWnd(HWND hParent)
{
    AFX_MANAGE_STATE(AfxGetStaticModuleState());

   return Create(hParent);
}

//DLL导出函数
void __stdcall PLC_DestroyWnd()
{
    AFX_MANAGE_STATE(AfxGetStaticModuleState());
    ParamDestroyWnd();
}
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2 WinForm添加容器

在WinForm窗口中添加一个Panel作为显示DLL中窗口的容器。

3 添加代码显示窗口

#if DEBUG
	[DllImport("PLCControlD.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
#else
	[DllImport("PLCControl.dll", CallingConvention = CallingConvention.StdCall, CharSet = CharSet.Ansi)]
#endif
	public static extern bool PLC_CreateWnd(IntPtr parent);

	public Form1()
	{
	    InitializeComponent();
	    PLC_CreateWnd(panel1.Handle);
	}
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4 运行效果