我在使用C++创建快捷方式时遇到问题。.lnk
文件已创建,但是目标具有无效路径。
您能解释一下为什么这段代码没有创建正确的快捷方式吗?有人可以帮我修复我的代码吗?
这是代码
// RepChrome.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "windows.h"
#include "winnls.h"
#include "shobjidl.h"
#include "objbase.h"
#include "objidl.h"
#include "shlguid.h"
#include <shlobj.h>
HRESULT CreateLink(LPCWSTR lpszPathObj1, LPCSTR lpszPathLink, LPCWSTR lpszDesc,LPCWSTR lpszarg)
{
HRESULT hres;
IShellLink* psl;
// Get a pointer to the IShellLink interface. It is assumed that CoInitialize
// has already been called.
hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (LPVOID*)&psl);
if (SUCCEEDED(hres))
{
IPersistFile* ppf;
// Set the path to the shortcut target and add the description.
psl->SetPath(lpszPathObj1);
psl->SetArguments(lpszarg);
psl->SetDescription(lpszDesc);
// Query IShellLink for the IPersistFile interface, used for saving the
// shortcut in persistent storage.
hres = psl->QueryInterface(IID_IPersistFile, (LPVOID*)&ppf);
if (SUCCEEDED(hres))
{
WCHAR wsz[MAX_PATH];
// Ensure that the string is Unicode.
MultiByteToWideChar(CP_ACP, 0, lpszPathLink, -1, wsz, MAX_PATH);
// Add code here to check return value from MultiByteWideChar
// for success.
// Save the link by calling IPersistFile::Save.
hres = ppf->Save(wsz, TRUE);
ppf->Release();
}
psl->Release();
}
return hres;
}
int _tmain(int argc, _TCHAR* argv[])
{
char sp[MAX_PATH] = { 0 };
WCHAR p[MAX_PATH]= { 0 };
WCHAR deskPath[MAX_PATH] = { 0 };
SHGetFolderPathW(NULL, CSIDL_DESKTOP, NULL, 0, deskPath);
sprintf_s( sp,sizeof(deskPath),"%s\\My Program.lnk",deskPath);
WCHAR path[MAX_PATH] = { 0 };
SHGetFolderPathW(NULL, CSIDL_PROGRAM_FILESX86, NULL, 0, path);
swprintf_s( p,sizeof(path),L"%s\\My Program\\start.exe",path);
CreateLink(p, sp, L"",L"");
return 0;
}
最佳答案
当调用sprintf_s()
时,%s
需要一个char*
字符串,但是您却给了它一个wchar*
字符串。另外,您为sprintf_s()
和swprintf_s()
的第二个参数传递了错误的值。
实际上,您根本不应该在此代码中使用任何char
数据,尤其是因为无论如何您只是将其转换为wchar
,因此您应该仅使用所有wchar
字符串。将lpszPathLink
参数更改为LPCWSTR
,将sp
缓冲区更改为WCHAR[]
,然后将sprintf_s()
更改为swprintf_s()
。
另外,由于您一直用于链接的所有值都是WCHAR
,因此您应该直接使用IShellLinkW
而不是基于TCHAR
的IShellLink
。
另外,CreateLink()
要求预先调用CoInitialize/Ex()
,但在此代码中未对其进行调用。
尝试以下方法:
// RepChrome.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "windows.h"
#include "winnls.h"
#include "shobjidl.h"
#include "objbase.h"
#include "objidl.h"
#include "shlguid.h"
#include <shlobj.h>
HRESULT CreateLink(LPCWSTR lpszPathObj1, LPCWSTR lpszPathLink, LPCWSTR lpszDesc, LPCWSTR lpszarg)
{
HRESULT hres;
IShellLinkW* psl;
// Get a pointer to the IShellLink interface. It is assumed that CoInitialize
// has already been called.
hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&psl));
if (SUCCEEDED(hres))
{
IPersistFile* ppf;
// Set the path to the shortcut target and add the description.
psl->SetPath(lpszPathObj1);
psl->SetArguments(lpszarg);
psl->SetDescription(lpszDesc);
// Query IShellLink for the IPersistFile interface, used for saving the
// shortcut in persistent storage.
hres = psl->QueryInterface(IID_PPV_ARGS(&ppf));
if (SUCCEEDED(hres))
{
// Save the link by calling IPersistFile::Save.
hres = ppf->Save(lpszPathLink, TRUE);
ppf->Release();
}
psl->Release();
}
return hres;
}
int _tmain(int argc, _TCHAR* argv[])
{
CoInitialize(NULL);
WCHAR sp[MAX_PATH] = { 0 };
WCHAR p[MAX_PATH] = { 0 };
WCHAR deskPath[MAX_PATH] = { 0 };
SHGetFolderPathW(NULL, CSIDL_DESKTOP, NULL, 0, deskPath);
swprintf_s( sp, _countof(sp), L"%s\\My Program.lnk", deskPath);
WCHAR path[MAX_PATH] = { 0 };
SHGetFolderPathW(NULL, CSIDL_PROGRAM_FILESX86, NULL, 0, path);
swprintf_s( p, _countof(p), L"%s\\My Program\\start.exe", path);
CreateLink(p, sp, L"",L"");
CoUninitialize();
return 0;
}
关于c++ - 使用Windows API创建快捷方式.lnk,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/63443681/