(1)在afxstd.h文件中包含头文件如下:
#include <atlbase.h> extern CComModule _Module; #include <atlcom.h>
(2)在程序APP文件中,声明如下:
CComModule _Module;//全局变量
BOOL CMFCApplication1App::InitInstance()
{//初始化报表COM组件
HRESULT hRes = ::CoInitialize(NULL);
ATLASSERT(SUCCEEDED(hRes));
_Module.Init(0, AfxGetInstanceHandle());
//......
}
int CMFCApplication1App::ExitInstance()
{//重写虚函数
_Module.Term();
::CoUninitialize();
return CWinApp::ExitInstance();
}(3)在对话框的头文件中,加入如下:
#include "GetPath.h" #include "GRImport.h"
当然需要先将Grid++report目录下的Utility文件夹复制到工程目录中,并在“项目属性->VC++目录->包含目录”添加Utility文件夹。
(4)在对话框类中添加成员变量:IGridppReportPtr m_pGridppReport;
BOOL CMFCApplication1Dlg::OnInitDialog()
{
//创建报表主对象
m_pGridppReport.CreateInstance(__uuidof(GridppReport));
ATLASSERT(m_pGridppReport != NULL);
//加载模板文件
//从文件中载入报表模板数据到报表主对象
CString FileName = GetReportTemplatePath(_T("标准过磅单1.grf"));
m_pGridppReport->LoadFromFile((LPCTSTR)FileName);
//第(7)步还有代码
}void CMFCApplication1Dlg::OnDestroy()
{
CDialogEx::OnDestroy();
//释放主报表对象
m_pGridppReport.Release();
}
void CMFCApplication1Dlg::OnBnClickedButton1()
{
//直接打印报表
m_pGridppReport->Print(TRUE);
}
void CMFCApplication1Dlg::OnBnClickedButton2()
{
// 显示预览窗口
m_pGridppReport->Title = _T("标准过磅单1");
m_pGridppReport->PrintPreview(TRUE);
}(5)同时将导出库复制到工程路径下,即gregn.tlb 和 grdes.tlb
(6)要动态修改报表参数,可以新建一个类,继承报表事件处理接口。
//Scale3DCReportEvent.h头文件
#pragma once
#include "GridppReportEventImpl.h"
class CScale3DCReportEvent :public CGridppReportEventImpl
{
public:
CScale3DCReportEvent();
~CScale3DCReportEvent();
virtual void Initialize(void);
IGridppReportPtr m_pGridppReport;
};//Scale3DCReportEvent.cpp文件
#include "stdafx.h"
#include "Scale3DCReportEvent.h"
#include "GridppReportEventImpl.c"
CScale3DCReportEvent::CScale3DCReportEvent()
{
}
CScale3DCReportEvent::~CScale3DCReportEvent()
{
}
void CScale3DCReportEvent::Initialize(void)
{
m_pGridppReport->ParameterByName(_T("车号"))->AsString =_T("猎豹太空梭0X29");
}(7)在相应的对话框头文件中包含:
#include "Scale3DCReportEvent.h"//事件包装类
#include "GetPath.h" //上面步骤已包含过
#include "GRImport.h"
在窗口类中声明成员变量:
//报表事件代理指针
CGridppReportEventImpl *m_pReportEvents;
在窗口的OnInitDialog()中添加如下代码:
//创建事件响应对象 CComObject<CScale3DCReportEvent> *pEvent; CComObject<CScale3DCReportEvent>::CreateInstance(&pEvent); m_pReportEvents = pEvent; m_pReportEvents->AddRef(); pEvent->m_pGridppReport = m_pGridppReport;//事件代理指针 HRESULT hr = m_pReportEvents->DispEventAdvise(m_pGridppReport, &__uuidof(_IGridppReportEvents)); ATLASSERT( SUCCEEDED(hr) );
(8)在ON_WM_DESTROY消息中继续添加代码:
//释放事件代理
if (m_pReportEvents != NULL)
{
HRESULT hr = m_pReportEvents->DispEventUnadvise(m_pGridppReport,
&__uuidof(_IGridppReportEvents));
m_pReportEvents->Release();
m_pReportEvents = NULL;
ATLASSERT(SUCCEEDED(hr));
}原文:http://blog.51cto.com/9233403/2118571