cpp文件中的两个main() [英] Two main() s in a cpp file
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问题描述
我需要重命名int main()但我不能.每当我尝试代码无法编译时,问题是我的应用程序中已经有一个main().
I need to rename int main() but I can''t. Whenever I try the code won''t compile, the problem is I already have a main() in my app.
#include "stdafx.h"
#include <stdio.h>
#include <wchar.h>
#include <windows.h>
#include <exdisp.h>
#include <string>
#pragma warning(disable: 4192)
#pragma warning(disable: 4146)
#import <mshtml.tlb>
#import <shdocvw.dll>
//using namespace std;
void PrintBrowserInfo(IWebBrowser2 *pBrowser) {
BSTR bstr;
IDispatchPtr spDisp;
if (pBrowser->get_Document(&spDisp) == S_OK && spDisp != NULL) {
MSHTML::IHTMLDocument2Ptr spHtmlDocument(spDisp);
if (spHtmlDocument != NULL) {
MSHTML::IHTMLElementPtr spHtmlElement;
spHtmlDocument->get_body(&spHtmlElement);
}
spDisp.Release();
}
pBrowser->get_LocationURL(&bstr);
//wprintf(L" URL: %s\n\n", bstr);
/////////////////////////////////
std::wstring wsURL;
wsURL = bstr;
size_t DSlashLoc = wsURL.find(L"//www.");
if (DSlashLoc >= 0)
{
wsURL.erase(wsURL.begin(), wsURL.begin() + DSlashLoc + 6);
}
DSlashLoc = wsURL.find(L"/");
if (DSlashLoc != wsURL.npos)
wsURL.erase(DSlashLoc);
wprintf(L" URL: %s\n\n", wsURL.c_str());
///////////////////////////////////
SysFreeString(bstr);
}
int main() {
CoInitialize(NULL);
SHDocVw::IShellWindowsPtr spSHWinds;
IDispatchPtr spDisp;
if (spSHWinds.CreateInstance(__uuidof(SHDocVw::ShellWindows)) == S_OK) {
long nCount = spSHWinds->GetCount();
for (long i = 0; i < nCount; i++) {
_variant_t va(i, VT_I4);
spDisp = spSHWinds->Item(va);
SHDocVw::IWebBrowser2Ptr spBrowser(spDisp);
if (spBrowser != NULL) {
PrintBrowserInfo((IWebBrowser2 *)spBrowser.GetInterfacePtr());
spBrowser.Release();
}
}
} else {
puts("Shell windows failed to initialise");
}
system("PAUSE");
return 0;
}
推荐答案
我不明白您遇到的问题.
您可以将函数重命名为任意名称.这是一个示例(对代码的其他部分进行了一些更正)
I don''t understand the issue you are having.
You can rename the function to whatever you like. Here is an example (with a few corrections to other portions of code)
#include "stdafx.h"
#include <stdio.h>
#include <wchar.h>
#include <windows.h>
#include <exdisp.h>
#include <string>
#pragma warning(disable: 4192)
#pragma warning(disable: 4146)
#import <mshtml.tlb>
#import <shdocvw.dll>
//using namespace std;
void PrintBrowserInfo(IWebBrowser2 *pBrowser) {
BSTR bstr;
/*//This code was used to detect if the explorer found was Internet Explorer or Windows Explorer (my computer)
IDispatchPtr spDisp;
if (pBrowser->get_Document(&spDisp) == S_OK && spDisp != NULL) {
MSHTML::IHTMLDocument2Ptr spHtmlDocument(spDisp);
if (spHtmlDocument != NULL) {
MSHTML::IHTMLElementPtr spHtmlElement;
spHtmlDocument->get_body(&spHtmlElement);
}
spDisp.Release();
}*/
pBrowser->get_LocationURL(&bstr);
//wprintf(L" URL: %s\n\n", bstr);
/////////////////////////////////
std::wstring wsURL;
wsURL = bstr;
size_t DSlashLoc = wsURL.find(L"//www."); //Note: not all URLs begin with "www."
if (DSlashLoc != wsURL.npos) //size_t is an unsigned type, it's value cannot be negative
{
wsURL.erase(wsURL.begin(), wsURL.begin() + DSlashLoc + 6);
}
DSlashLoc = wsURL.find(L"/");
if (DSlashLoc != wsURL.npos)
wsURL.erase(DSlashLoc);
wprintf(L" URL: %s\n\n", wsURL.c_str());
///////////////////////////////////
SysFreeString(bstr);
}
//Changed return type, we don't really need a return from this
void EnumExplorers() {
CoInitialize(NULL);
SHDocVw::IShellWindowsPtr spSHWinds;
IDispatchPtr spDisp;
if (spSHWinds.CreateInstance(__uuidof(SHDocVw::ShellWindows)) == S_OK) {
long nCount = spSHWinds->GetCount();
for (long i = 0; i < nCount; i++) {
_variant_t va(i, VT_I4);
spDisp = spSHWinds->Item(va);
SHDocVw::IWebBrowser2Ptr spBrowser(spDisp);
if (spBrowser != NULL) {
PrintBrowserInfo((IWebBrowser2 *)spBrowser.GetInterfacePtr());
spBrowser.Release();
}
}
} else {
puts("Shell windows failed to initialise");
}
//Deleted pause and return
}
只需从任何地方调用EnumExplorers();
,它将起作用.如果您需要从另一个.cpp文件中调用它,只需使用
创建一个新的头文件
Just call EnumExplorers();
from anywhere and it will work. If you need to call it from another .cpp file, just create a new header file with
#pragma once
void EnumExplorers();
并正常包含该文件.
And include that file as normal.
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