Shell 执行将窗口置于前面

我正在使用此函数从我的 MSI 调用可执行文件。然而，可执行文件的窗口隐藏在我的 MSI 窗口后面。有什么办法可以把它带到前面吗？

我尝试在调用之前最小化所有窗口ShellExecute但这仍然没有将可执行窗口带到前面。

extern "C" UINT __stdcall InstallDrivers(MSIHANDLE hInstall)
{
HRESULT hr = S_OK;
UINT er = ERROR_SUCCESS;
HANDLE hFile = INVALID_HANDLE_VALUE;
BYTE* pbData = NULL;
DWORD cbData = 0;
char pwzFilename[MAX_PATH], szDriverType[MAX_PATH], pwzSentinelFilename[MAX_PATH], szIsInstalled[MAX_PATH];
LPWSTR szValueBuf = NULL, szIsHaspInstalled = NULL, szIsSentinelInstalled = NULL;

hr = WcaInitialize(hInstall, "InstallDrivers");
ExitOnFailure(hr, "Failed to initialize");

WcaLog(LOGMSG_STANDARD, "Initialized.");
WcaLog(LOGMSG_STANDARD, "%s", szValueBuf);
CreateDirectory("C:\\Temp", NULL);

strcpy_s(pwzFilename, "C:\\Temp\\HASPUserSetup.exe");

hr = ExtractBinary(L"Hasp", &pbData, &cbData);
ExitOnFailure(hr, "failed to extract binary data");

if ((hFile = CreateFile(pwzFilename, GENERIC_WRITE,FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE) 
{
    PMSIHANDLE hRecord = MsiCreateRecord(0);
    MsiRecordSetString(hRecord, 0, TEXT("Could not create new temporary file"));
    MsiProcessMessage(hInstall, INSTALLMESSAGE(INSTALLMESSAGE_ERROR + MB_OK), hRecord);
    return ERROR_INSTALL_USEREXIT;  
} 

DWORD cbWritten = 0;
if ( !WriteFile(hFile, pbData, cbData, &cbWritten, NULL) )
{
    PMSIHANDLE hRecord = MsiCreateRecord(0);
    MsiRecordSetString(hRecord, 0, TEXT("Could not write to file"));
    MsiProcessMessage(hInstall, INSTALLMESSAGE(INSTALLMESSAGE_ERROR + MB_OK), hRecord);
    return ERROR_INSTALL_USEREXIT;
}

CloseHandle(hFile);

strcpy_s(pwzSentinelFilename, "C:\\Temp\\sentinel_setup.exe");
hr = ExtractBinary(L"Sentinel", &pbData, &cbData);
ExitOnFailure(hr, "failed to extract binary data");

if ((hFile = CreateFile(pwzSentinelFilename, GENERIC_WRITE,FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE) 
{
    PMSIHANDLE hRecord = MsiCreateRecord(0);
    MsiRecordSetString(hRecord, 0, TEXT("Could not create new temporary file"));
    MsiProcessMessage(hInstall, INSTALLMESSAGE(INSTALLMESSAGE_ERROR + MB_OK), hRecord);
    return ERROR_INSTALL_USEREXIT;  
} 


if ( !WriteFile(hFile, pbData, cbData, &cbWritten, NULL) )
{
    PMSIHANDLE hRecord = MsiCreateRecord(0);
    MsiRecordSetString(hRecord, 0, TEXT("Could not write to file"));
    MsiProcessMessage(hInstall, INSTALLMESSAGE(INSTALLMESSAGE_ERROR + MB_OK), hRecord);
    return ERROR_INSTALL_USEREXIT;
}

CloseHandle(hFile);

hr = WcaGetProperty(L"DRIVER", &szValueBuf);
ExitOnFailure(hr, "failed to get driver info");

wcstombs(szDriverType, szValueBuf, 260);
if (strcmp(szDriverType, "Hasp") == 0)
{   

    hr = WcaGetProperty(L"SENTINELINSTALLED", &szIsSentinelInstalled);
    ExitOnFailure(hr, "failed to get driver info");
    wcstombs(szIsInstalled, szValueBuf, 260);
    if (strcmp(szIsInstalled, "Sentinel Protection Installer 7.6.5") == 0)
    {
    ShellExecute(NULL, "open",  pwzSentinelFilename, NULL, NULL, SW_SHOWNORMAL);
    }
    ShellExecute(NULL, "open",  pwzFilename, NULL, NULL, SW_SHOWNORMAL);
}else
{
    hr = WcaGetProperty(L"HASPINSTALLED", &szIsHaspInstalled);
    ExitOnFailure(hr, "failed to get driver info");
    wcstombs(szIsInstalled, szIsHaspInstalled, 260);
    if (strcmp(szIsInstalled, "Sentinel Runtime") == 0)
    {
    ShellExecute(NULL, "open",  pwzFilename, NULL, NULL, SW_SHOWNORMAL);
    }
    ShellExecute(NULL, "open",  pwzSentinelFilename, NULL, NULL, SW_SHOWNORMAL);
}
LExit:
er = SUCCEEDED(hr) ? ERROR_SUCCESS : ERROR_INSTALL_FAILURE;
return WcaFinalize(er);
}

更新的代码：

extern "C" UINT __stdcall InstallDrivers(MSIHANDLE hInstall)
{
HRESULT hr = S_OK;
UINT er = ERROR_SUCCESS;
HANDLE hFile = INVALID_HANDLE_VALUE;
BYTE* pbData = NULL;
DWORD cbData = 0;
char pwzFilename[MAX_PATH], szDriverType[MAX_PATH], pwzSentinelFilename[MAX_PATH], szIsInstalled[MAX_PATH];
LPWSTR szValueBuf = NULL, szIsHaspInstalled = NULL, szIsSentinelInstalled = NULL;
SHELLEXECUTEINFO ShExecInfo;

ShExecInfo.cbSize = sizeof(SHELLEXECUTEINFO);
ShExecInfo.fMask = NULL;
ShExecInfo.hwnd = NULL;
ShExecInfo.lpVerb = NULL;
ShExecInfo.lpParameters = NULL;
ShExecInfo.lpDirectory = NULL;
ShExecInfo.nShow = SW_SHOWNORMAL;
ShExecInfo.hInstApp = NULL;

hr = WcaInitialize(hInstall, "InstallDrivers");
ExitOnFailure(hr, "Failed to initialize");

WcaLog(LOGMSG_STANDARD, "Initialized.");
WcaLog(LOGMSG_STANDARD, "%s", szValueBuf);
CreateDirectory("C:\\Temp", NULL);

strcpy_s(pwzFilename, "C:\\Temp\\HASPUserSetup.exe");

hr = ExtractBinary(L"Hasp", &pbData, &cbData);
ExitOnFailure(hr, "failed to extract binary data");

if ((hFile = CreateFile(pwzFilename, GENERIC_WRITE,FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE) 
{
    PMSIHANDLE hRecord = MsiCreateRecord(0);
    MsiRecordSetString(hRecord, 0, TEXT("Could not create new temporary file"));
    MsiProcessMessage(hInstall, INSTALLMESSAGE(INSTALLMESSAGE_ERROR + MB_OK), hRecord);
    return ERROR_INSTALL_USEREXIT;  
} 

DWORD cbWritten = 0;
if ( !WriteFile(hFile, pbData, cbData, &cbWritten, NULL) )
{
    PMSIHANDLE hRecord = MsiCreateRecord(0);
    MsiRecordSetString(hRecord, 0, TEXT("Could not write to file"));
    MsiProcessMessage(hInstall, INSTALLMESSAGE(INSTALLMESSAGE_ERROR + MB_OK), hRecord);
    return ERROR_INSTALL_USEREXIT;
}

CloseHandle(hFile);

strcpy_s(pwzSentinelFilename, "C:\\Temp\\sentinel_setup.exe");
hr = ExtractBinary(L"Sentinel", &pbData, &cbData);
ExitOnFailure(hr, "failed to extract binary data");

if ((hFile = CreateFile(pwzSentinelFilename, GENERIC_WRITE,FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE) 
{
    PMSIHANDLE hRecord = MsiCreateRecord(0);
    MsiRecordSetString(hRecord, 0, TEXT("Could not create new temporary file"));
    MsiProcessMessage(hInstall, INSTALLMESSAGE(INSTALLMESSAGE_ERROR + MB_OK), hRecord);
    return ERROR_INSTALL_USEREXIT;  
} 


if ( !WriteFile(hFile, pbData, cbData, &cbWritten, NULL) )
{
    PMSIHANDLE hRecord = MsiCreateRecord(0);
    MsiRecordSetString(hRecord, 0, TEXT("Could not write to file"));
    MsiProcessMessage(hInstall, INSTALLMESSAGE(INSTALLMESSAGE_ERROR + MB_OK), hRecord);
    return ERROR_INSTALL_USEREXIT;
}

CloseHandle(hFile);

hr = WcaGetProperty(L"DRIVER", &szValueBuf);
ExitOnFailure(hr, "failed to get driver info");

wcstombs(szDriverType, szValueBuf, 260);
if (strcmp(szDriverType, "Hasp") == 0)
{   

    hr = WcaGetProperty(L"SENTINELINSTALLED", &szIsSentinelInstalled);
    ExitOnFailure(hr, "failed to get driver info");
    wcstombs(szIsInstalled, szValueBuf, 260);
    if (strcmp(szIsInstalled, "Sentinel Protection Installer 7.6.5") == 0)
    {
        AllowSetForegroundWindow(ASFW_ANY);
        ShExecInfo.lpFile = pwzSentinelFilename;
        ShellExecuteEx(&ShExecInfo);
        /*ShellExecute(NULL, "open",  pwzSentinelFilename, NULL, NULL, SW_SHOWNORMAL);*/
    }
    AllowSetForegroundWindow(ASFW_ANY);
    ShExecInfo.lpFile = pwzFilename;
    ShellExecuteEx(&ShExecInfo);

    /*ShellExecute(NULL, "open",  pwzFilename, NULL, NULL, SW_SHOWNORMAL);*/
}else
{
    hr = WcaGetProperty(L"HASPINSTALLED", &szIsHaspInstalled);
    ExitOnFailure(hr, "failed to get driver info");
    wcstombs(szIsInstalled, szIsHaspInstalled, 260);
    if (strcmp(szIsInstalled, "Sentinel Runtime") == 0)
    {
        AllowSetForegroundWindow(ASFW_ANY);
        /*ShellExecute(NULL, "open",  pwzFilename, NULL, NULL, SW_SHOWNORMAL);*/
        ShExecInfo.lpFile = pwzFilename;
        ShellExecuteEx(&ShExecInfo);
    }
    AllowSetForegroundWindow(ASFW_ANY);
    ShExecInfo.lpFile = pwzSentinelFilename;
    ShellExecuteEx(&ShExecInfo);
    /*  ShellExecute(NULL, "open",  pwzSentinelFilename, NULL, NULL, SW_SHOWNORMAL);*/
}
LExit:
er = SUCCEEDED(hr) ? ERROR_SUCCESS : ERROR_INSTALL_FAILURE;
return WcaFinalize(er);
}

Windows 不允许进程抢占前台窗口，除非用户启动它们。这是为了避免诸如说服用户在错误的窗口中输入银行详细信息之类的情况。然而，当前的前台进程可以将权限传递给另一个进程来执行此操作。看允许设置前景窗口 http://msdn.microsoft.com/en-us/library/windows/desktop/ms632668%28v=vs.85%29.aspx了解详情。为此，您必须提供将成为前台的进程的进程 ID，而 ShellExecute 不提供该进程 ID。但是，如果您切换到使用Shell执行Ex http://msdn.microsoft.com/en-us/library/windows/desktop/bb762154%28v=vs.85%29.aspx您可以从 SHELLEXECUTEINFO 结构上的 hProcess 成员获取此信息。

然后你可以打电话设置前景窗口 http://msdn.microsoft.com/en-us/library/windows/desktop/ms633539%28v=vs.85%29.aspx在您的新流程中，它将被允许。否则它只会开始在任务栏上闪烁。

EDIT

如果您的初始应用程序是前台应用程序，并且您从中启动一个子进程，则该子进程应自动成为前台，如这些函数的文档中所述。

下面是我们如何选择启用和设置另一个应用程序以成为前台窗口的示例。在本例中，它只是创建一个文本文件并使用以下命令调用 ShellExecuteExopen动词。我们必须等待子进程启动并准备好其窗口，然后我们可以从进程 ID 中找到该窗口并为其授予权限并将其窗口设置为前台。在这种情况下，启动的记事本（或 .txt 文件的“打开”动词）无论如何都将位于前台。如果您单独运行一个记事本进程并替换该进程的进程 ID（我们通常放入子进程 ID），那么我们可以another进程成为前台——它不是我们进程树的一部分。这可以使用 Visual C++ 进行编译cl -nologo -W3 -O2 -MD fg_test.cpp生成一个 fg_test.exe。

#define STRICT
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#include <shellapi.h>

#pragma comment(lib, "shell32")
#pragma comment(lib, "user32")

static void PrintError(LPCTSTR szPrefix, DWORD dwError);
static BOOL CALLBACK OnGetWindowByProcess(HWND hwnd, LPARAM lParam);

typedef struct {
    DWORD pid;
    HWND hwnd;
} WINDOWPROCESSINFO;

int _tmain(int argc, TCHAR *argv[])
{
    SHELLEXECUTEINFO sxi = {0};
    sxi.cbSize = sizeof(sxi);
    sxi.nShow = SW_SHOWNORMAL;

    FILE *fp = NULL;
    _tfopen_s(&fp, _T("junk.txt"), _T("wt"));
    _fputts(_T("Example text file\n"), fp);
    fclose(fp);

    sxi.fMask = SEE_MASK_NOCLOSEPROCESS | SEE_MASK_NOASYNC | SEE_MASK_WAITFORINPUTIDLE;
    sxi.lpVerb = _T("open");
    sxi.lpFile = _T("junk.txt");
    if (!ShellExecuteEx(&sxi))
        PrintError(_T("ShellExecuteEx"), GetLastError());
    else
    {
        WINDOWPROCESSINFO info;
        info.pid = GetProcessId(sxi.hProcess); // SPECIFY PID
        info.hwnd = 0;
        AllowSetForegroundWindow(info.pid);
        EnumWindows(OnGetWindowByProcess, (LPARAM)&info);
        if (info.hwnd != 0)
        {
            SetForegroundWindow(info.hwnd);
            SetActiveWindow(info.hwnd);
        }
        CloseHandle(sxi.hProcess);

    }
    return 0;
}

static BOOL CALLBACK OnGetWindowByProcess(HWND hwnd, LPARAM lParam)
{
    WINDOWPROCESSINFO *infoPtr = (WINDOWPROCESSINFO *)lParam;
    DWORD check = 0;
    BOOL br = TRUE;
    GetWindowThreadProcessId(hwnd, &check);
    _tprintf(_T("%x %x %x\n"), hwnd, check, infoPtr->pid);
    if (check == infoPtr->pid)
    {
        _tprintf(_T("found window %x for process id %x\n"), hwnd, check);
        infoPtr->hwnd = hwnd;
        br = FALSE;
    }
    return br;
}

static void
PrintError(LPCTSTR szPrefix, DWORD dwError)
{
    LPTSTR lpsz = NULL;
    DWORD cch = 0;

    cch = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER
                        | FORMAT_MESSAGE_FROM_SYSTEM
                        | FORMAT_MESSAGE_IGNORE_INSERTS,
                        NULL, dwError, LANG_NEUTRAL, (LPTSTR)&lpsz, 0, NULL);
    if (cch < 1) {
        cch = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER
                            | FORMAT_MESSAGE_FROM_STRING
                            | FORMAT_MESSAGE_ARGUMENT_ARRAY,
                            _T("Code 0x%1!08x!"),
                            0, LANG_NEUTRAL, (LPTSTR)&lpsz, 0,
                            (va_list*)&dwError);
    }
    _ftprintf(stderr, _T("%s: %s"), szPrefix, lpsz);
    LocalFree((HLOCAL)lpsz);
}