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#pragma once
#include "afxwin.h"
class CSplashWnd :
public CWnd
{
public:
CSplashWnd(void);
~CSplashWnd(void);
CBitmap mBitmap;//初始画面位图
static CSplashWnd* c_pSplashWnd;
//指向初始画面窗口的指针
/* c_pSplashWnd为静态成员变量，应在类的实现文件(.cpp)开头说明：*/
// CSplashWnd* CSplashWnd::c_pSplashWnd;
static void ShowSplashScreen(CWnd *pParentWnd);
virtual BOOL Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext = NULL);
//BOOL CSplashWnd::Create(CWnd *pParentWnd)
DECLARE_MESSAGE_MAP()
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
afx_msg void OnTimer(UINT_PTR nIDEvent);
virtual void PostNcDestroy();
afx_msg void OnPaint();
};
#include "StdAfx.h"
#include "SplashWnd.h"
#include "resource.h"
CSplashWnd* CSplashWnd::c_pSplashWnd;
CSplashWnd::CSplashWnd(void)
{
}
CSplashWnd::~CSplashWnd(void)
{
}
BOOL CSplashWnd::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)
{
// TODO: 在此添加专用代码和/或调用基类
if(!mBitmap.LoadBitmap(IDB_SPLASH))
//载入位图
return FALSE;
BITMAP bm;
mBitmap.GetBitmap(&bm);
return CreateEx(0,
AfxRegisterWndClass(0, AfxGetApp()->LoadStandardCursor(IDC_ARROW)),
NULL, WS_POPUP | WS_VISIBLE, 0, 0, bm.bmWidth, bm.bmHeight, pParentWnd->GetSafeHwnd(), NULL);
//return CWnd::Create(lpszClassName, lpszWindowName, dwStyle, rect, pParentWnd, nID, pContext);
}
void CSplashWnd::ShowSplashScreen(CWnd *pParentWnd)
{ //此函数传递的参数是主框架窗口
if(c_pSplashWnd!=NULL) return;
c_pSplashWnd=new CSplashWnd;
RECT rect={50,50,50,50};
if(!c_pSplashWnd->Create(NULL,NULL,NULL,rect,pParentWnd,NULL,0))
{
delete c_pSplashWnd;
}
else
{
c_pSplashWnd->UpdateWindow();
}
//显示初始画面窗口
};
BEGIN_MESSAGE_MAP(CSplashWnd, CWnd)
ON_WM_CREATE()
ON_WM_TIMER()
ON_WM_PAINT()
END_MESSAGE_MAP()
int CSplashWnd::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CWnd::OnCreate(lpCreateStruct)==-1)
return -1;
CenterWindow();
SetTimer(1,3000,NULL); //时间控制
return 0;
}
void CSplashWnd::OnTimer(UINT_PTR nIDEvent)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
DestroyWindow(); //销毁初始画面窗口
AfxGetMainWnd()->UpdateWindow();
//CWnd::OnTimer(nIDEvent);
}
void CSplashWnd::PostNcDestroy()
{
// TODO: 在此添加专用代码和/或调用基类
DestroyWindow(); //销毁初始画面窗口
AfxGetMainWnd()->ShowWindow(SW_SHOWNORMAL);
CWnd::PostNcDestroy();
}
void CSplashWnd::OnPaint()
{
CPaintDC dc(this);
CDC dcImage;
if(!dcImage.CreateCompatibleDC(&dc)) return;
BITMAP bm;
mBitmap.GetBitmap(&bm);
CBitmap* pOldBitmap=dcImage.SelectObject(&mBitmap);
dc.BitBlt(0,0,bm.bmWidth,bm.bmHeight,&dcImage,0,0,SRCCOPY);
}
1.在APP中instance把选择为hide m_pMainWnd->ShowWindow(SW_HIDE);，这样就可以保证在显示启动画面的同时，程序在启动中，并且不显示出来；2.在启动画面摧毁之后将程序显现出来AfxGetMainWnd()->ShowWindow(SW_SHOWNORMAL); 3.在mainframe里面调用ShowSplashScreen函数即可.
posted @ 2011-07-26 18:59 筋肉强打 阅读(47) 评论(0) 编辑
在很久以前，就因为项目的需求，接触到了组件的概念，但是由于各种原因（主要还是自己太懒...）没有系统的学习和理解组件.进几天项目空闲下来，我魔兽世界也85了..所以安心的把组件的知识梳理一遍，当然只是很基础很基础的东西，里面还参杂了一些自己的理解，写下来，可以让自己以后复习，也希望高手能指点，我的主要参考资料是《com技术内幕》，csdn上有下载。
什么是com组件？什么是com技术？这些有许多解释，我个人的理解就是控件咯，类咯，dll咯，总之就是个黑盒子，我不知道它是用啥实现的，只要给我接口，知道咋用就行了——这就是我理解的组件。
那么如何实现组件呢？我们可以用c++的虚类来理解接口.每个接口实现了许多函数，许多接口便组成了组件...bulabulabula
所有的com接口都实现了IUnknown接口（接口中的函数都必须实现，java中是这样），该接口有三个方法：QueryInterface、AddRef、Release，com接口的前三个函数必定是这三个，下面介绍这三个函数的功能
QueryInterface（const IID&iid，void**ppv）：客户用来通过此函数来查询某个组件是否支持某个特定的接口，若支持则返回指向此接口的指针，否则返回错误代码；第一个参数表示“接口标识符”，标示接口所需的常量，另一个参数存放接口地址的指针；返回HRESULT可用相应的宏判断返回值的意义；当接口不被支持的时候*ppv应该为NULL，下面是一些代码和注释...
#include <iostream>
#include <objbase.h>
using namespace std;
void trace(const char* msg) { cout << msg << endl ;}
// Interfaces
interface IX : IUnknown
{
virtual void __stdcall Fx() = 0 ;
} ;
interface IY : IUnknown
{
virtual void __stdcall Fy() = 0 ;
} ;
interface IZ : IUnknown
{
virtual void __stdcall Fz() = 0 ;
} ;
// Forward references for GUIDs
extern const IID IID_IX ;
extern const IID IID_IY ;
extern const IID IID_IZ ;
//
// Component
//
class CA : public IX,
public IY
{
//IUnknown implementation
virtual HRESULT __stdcall QueryInterface(const IID& iid, void** ppv) ;
virtual ULONG __stdcall AddRef() { return 0 ;}
virtual ULONG __stdcall Release() { return 0 ;}
// Interface IX implementation
virtual void __stdcall Fx() { cout << "Fx" << endl ;}
// Interface IY implementation
virtual void __stdcall Fy() { cout << "Fy" << endl ;}
} ;
HRESULT __stdcall CA::QueryInterface(const IID& iid, void** ppv)/*存ä?放¤?地Ì?址¡¤的Ì?指?针?void* 可¨¦以°?包㨹容¨Y任¨?意°a类¤¨¤型¨ª*/
{
if (iid == IID_IUnknown)
{
trace("QueryInterface: Return pointer to IUnknown.") ;
/*
static_cast < type-id > ( expression )
? ?该?运?算?符¤?把ã?expression转Áa换?为atype-id类¤¨¤型¨ª，ê?但Ì?没?有®D运?行D时º¡À类¤¨¤型¨ª检¨¬查¨¦来¤¡ä保À¡ê证¡è转Áa换?的Ì?安ã2全¨?性?。¡ê它¨¹主¡Â要°a有®D如¨?下?几?种?用®?法¤¡§：êo
? ?①騴用®?于®¨²类¤¨¤层?次ä?结¨¢构1中D基¨´类¤¨¤（ꡧ父?类¤¨¤）ê?和¨ª派¨¦生¦¨²类¤¨¤（ꡧ子Á¨®类¤¨¤）ê?之?间?指?针?或¨°引°y用®?的Ì?转Áa换?。¡ê
? ?进?行D上¦?行D转Áa换?（ꡧ把ã?派¨¦生¦¨²类¤¨¤的Ì?指?针?或¨°引°y用®?转Áa换?成¨¦基¨´类¤¨¤表À¨ª示º?）ê?是º?安ã2全¨?的Ì?；ê?
? ?进?行D下?行D转Áa换?（ꡧ把ã?基¨´类¤¨¤指?针?或¨°引°y用®?转Áa换?成¨¦派¨¦生¦¨²类¤¨¤表À¨ª示º?）ê?时º¡À，ê?由®¨¦于®¨²没?有®D动¡¥态¬?类¤¨¤型¨ª检¨¬查¨¦，ê?所¨´以°?是º?不?安ã2全¨?的Ì?。¡ê
? ?②騲用®?于®¨²基¨´本À?数ºy据Y类¤¨¤型¨ª之?间?的Ì?转Áa换?，ê?如¨?把ã?int转Áa换?成¨¦char，ê?把ã?int转Áa换?成¨¦enum。¡ê这a种?转Áa换?的Ì?安ã2全¨?性?也°2要°a开a发¤¡é人¨?员¡À来¤¡ä保À¡ê证¡è。¡ê
? ?③é?把ã?空?指?针?转Áa换?成¨¦目?标À¨º类¤¨¤型¨ª的Ì?空?指?针?。¡ê
? ?④騹把ã?任¨?何?类¤¨¤型¨ª的Ì?表À¨ª达ä?式º?转Áa换?成¨¦void类¤¨¤型¨ª。¡ê
?注Á¡é意°a：êostatic_cast不?能¨¹转Áa换?掉Ì?expression的Ì?const、¡évolitale、¡é或¨°者?__unaligned属º?性?。¡ê
*/
*ppv = static_cast<IX*>(this) ;//*ppv放¤?的Ì?是º?地Ì?址¡¤...
}
else if (iid == IID_IX)
{
trace("QueryInterface: Return pointer to IX.") ;
*ppv = static_cast<IX*>(this) ;
}
else if (iid == IID_IY)
{
trace("QueryInterface: Return pointer to IY.") ;
*ppv = static_cast<IY*>(this) ;
}
else
{
trace("QueryInterface: Interface not supported.") ;
*ppv = NULL ;
return E_NOINTERFACE ;
}
reinterpret_cast<IUnknown*>(*ppv)->AddRef() ; // See Chapter 4.
return S_OK ;
}
//
// Creation function
//
IUnknown* CreateInstance()
{
IUnknown* pI = static_cast<IX*>(new CA) ;
pI->AddRef() ;
return pI ;
}
//
// IIDs
//
// {32bb8320-b41b-11cf-a6bb-0080c7b2d682}
static const IID IID_IX =
{0x32bb8320, 0xb41b, 0x11cf,
{0xa6, 0xbb, 0x0, 0x80, 0xc7, 0xb2, 0xd6, 0x82}} ;
// {32bb8321-b41b-11cf-a6bb-0080c7b2d682}
static const IID IID_IY =
{0x32bb8321, 0xb41b, 0x11cf,
{0xa6, 0xbb, 0x0, 0x80, 0xc7, 0xb2, 0xd6, 0x82}} ;
// {32bb8322-b41b-11cf-a6bb-0080c7b2d682}
static const IID IID_IZ =
{0x32bb8322, 0xb41b, 0x11cf,
{0xa6, 0xbb, 0x0, 0x80, 0xc7, 0xb2, 0xd6, 0x82}} ;
//
// Client
//
int main()
{
HRESULT hr ;
trace("Client: Get an IUnknown pointer.") ;
IUnknown* pIUnknown = CreateInstance() ;
trace("Client: Get interface IX.") ;
IX* pIX = NULL ;
hr = pIUnknown->QueryInterface(IID_IX, (void**)&pIX) ;
if (SUCCEEDED(hr))
{
trace("Client: Succeeded getting IX.") ;
pIX->Fx() ; // Use interface IX.
}
trace("Client: Get interface IY.") ;
IY* pIY = NULL ;
hr = pIUnknown->QueryInterface(IID_IY, (void**)&pIY) ;
if (SUCCEEDED(hr))
{
trace("Client: Succeeded getting IY.") ;
pIY->Fy() ; // Use interface IY.
}
trace("Client: Ask for an unsupported interface.") ;
IZ* pIZ = NULL ;
hr = pIUnknown->QueryInterface(IID_IZ, (void**)&pIZ) ;
if (SUCCEEDED(hr))
{
trace("Client: Succeeded in getting interface IZ.") ;
pIZ->Fz() ;
}
else
{
trace("Client: Could not get interface IZ.") ;
}
trace("Client: Get interface IY from interface IX.") ;
IY* pIYfromIX = NULL ;
hr = pIX->QueryInterface(IID_IY, (void**)&pIYfromIX) ;
if (SUCCEEDED(hr))
{
trace("Client: Succeeded getting IY.") ;
pIYfromIX->Fy() ;
}
trace("Client: Get interface IUnknown from IY.") ;
IUnknown* pIUnknownFromIY = NULL ;
hr = pIY->QueryInterface(IID_IUnknown, (void**)&pIUnknownFromIY) ;
if (SUCCEEDED(hr))
{
cout << "Are the IUnknown pointers equal? " ;
if (pIUnknownFromIY == pIUnknown)
{
cout << "Yes, pIUnknownFromIY == pIUnknown." << endl ;
}
else
{
cout << "No, pIUnknownFromIY != pIUnknown." << endl ;
}
}
// Delete the component.
delete pIUnknown ;
return 0 ;
}
posted @ 2011-07-17 14:37 筋肉强打 阅读(26) 评论(0) 编辑
IDC_：控件的ID命名前缀（Control)
IDM_：菜单的ID命名前缀（Menu)
IDD_：对话框的ID命名前缀（Dialog)
IDR_：资源的ID命名前缀（Resource)
IDS_：字符串的ID命名前缀（String）
IDB_：位图资源的ID命名前缀（Bitmap）
posted @ 2011-07-12 15:40 筋肉强打 阅读(70) 评论(0) 编辑
// ForChypre.cpp : 定义控制台应用程序的入口点。
//
/*
假定文本文件a1.txt中是某高校所有参加住宅小区挑房职工的信息，
请编写程序，读出文件中的内容，再按挑房的先后次序排队后将排序号和
姓名以文本方式存放到文件a2.txt中。排队原则：先按职称排，同职称按
分房工龄排，同工龄按年龄排。职称编号：校级干部 0教授、正处
级 1副教授、副处级 2讲师、科级 3其他
*/
#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
using namespace std;
class Info
{
public:
bool operator >(const Info& info2)
{
if(turnTitle2number(this->title)<turnTitle2number(info2.title)||this->worktime>info2.worktime||this->age>info2.age)
{
return true;
}
else
return false;
}
int turnTitle2number(string title)
{
string l[][3]={{"教授","正处级"},{"副教授","副处级"},{"讲师","科级"}};
for(int i=0;i<sizeof(l)/3*sizeof(string);i++)
{
for (int j=0;j<3;j++)
{
if(title==l[i][j])
return i;//将职称转换成相应的数字，方便比较大小，职称越小则数字越大
}
}
}
public:
string pname;//姓名
string title;//职称
int age;//年龄
int worktime;//工龄
};
void fileRead(string fileName,vector<Info>&vec)
{
ifstream file(fileName);
string strTemp;
while (!file.eof())//如果不是文件末尾，则读出信息
{
Info info;
getline(file,strTemp);//一行信息
istringstream str(strTemp);//分割一行信息，以空格为分隔符
string strWord;//存储单个单词的单元
//vector <string>vect;
int i=0;
while(str>>strWord)
{
switch(i)
{
case 0:
info.pname=strWord;
break;
case 1:
info.title=strWord;
break;
case 2:
info.worktime=atoi(strWord.c_str());
break;
case 3:
info.age=atoi(strWord.c_str());
break;
}
i++;
/*
if(strWord!=""&&strWord!="\r")
vect.push_back(strWord);//存入vector中.*/
}
vec.push_back(info);
}
}
void sort(Info info[],int len,vector<Info> &vect)
{
int i=0;
for (vector<Info>::iterator itr=vect.begin();itr!=vect.end();itr++)//itr 为指针
{
info[i]=*itr;
i++;
}
for(int i=0;i<len;i++)
{
for (int j=i;j<len;j++)
{
if (!(info[i]>info[j]))
{
Info temp=info[i];
info[i]=info[j];
info[j]=temp;//交换
}
}
}
vect.clear();
for (int i=0;i<len;i++)
{
vect.push_back(info[i]);//入栈
}
}
void fileWrite(string& fileName,vector<Info>&vect)
{
ofstream file(fileName.c_str());
Info temp;
for (vector<Info>::iterator itr=vect.begin();itr!=vect.end();itr++)
{
temp=*itr;
string str;
str.append(temp.pname);
str.append(" ");
str.append(temp.title);
str.append(" ");
char str2[100];
itoa(temp.worktime, str2, 10);//(源，目标字符串，进制)
str.append(str2);
str.append(" ");
itoa(temp.age, str2, 10);
str.append(str2);
str.append("\n");
file<<str;
}
}
void main()
{
string a="a1.txt";
string b="a2.txt";
vector<Info> vect;
fileRead(a,vect); //a读出
Info *techers=new Info[vect.size()];
sort(techers,vect.size(),vect);
fileWrite(b,vect); //写入b
}
posted @ 2011-07-10 17:06 筋肉强打 阅读(171) 评论(0) 编辑