SW_HIDE doesn't work with ShellExecute on windows 8 and IE10

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Hi,

SW_HIDE doesn't work with ShellExecute on windows 8 and Internet Explorer 10. Does any one has any clue on the same.

I tried the below code.

C++

HINSTANCE hInstance = ShellExecute(NULL, _T("open"),_T("IExplore.exe"), _T("www.google.com"),  CString(szTemp), SW_HIDE);

Any help is appreciated

Posted 11-Oct-12 21:18pm

Susanta578

Updated 11-Oct-12 22:41pm

Jochen Arndt

v2

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Jochen Arndt 12-Oct-12 4:40am

I don't have a solution. But the ShellExecute() documentation states for the nCmdShow parameter:
It is up to the application to decide how to handle it.
So this seems to be a behaviour of IE 10.

enhzflep 12-Oct-12 5:31am

Yeah, just like Jochen said - it's up to the app to decide. Look again at the WinMain signature:

int WINAPI WinMain (HINSTANCE hThisInstance,
HINSTANCE hPrevInstance,
LPSTR lpszArgument,
int nCmdShow)

I know I, for one never bother to check the value of nCmdShow on pet-projects. I always show the window, guess the MS ~~apprentices~~ engineers have made the same descision.

Susanta578 12-Oct-12 5:32am

Thanks for the comment. I also came across the same statement. But just want to know if is there a way to force the parameter nCmdShow.

2 solutions

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chaau · Answer 1 · 2012-10-12T00:58:00

Try this:

C++

STARTUPINFO si = {0};
PROCESS_INFORMATION pi = {0};

si.cb = sizeof(cb);
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_HIDE;

if(::CreateProcess(
  NULL, // LPCTSTR lpApplicationName,
  _T("\"C:\\Program File\\Internet Explorer\\IExplore.exe\" http://www.google.com"), // LPTSTR lpCommandLine,
  NULL, // LPSECURITY_ATTRIBUTES lpProcessAttributes,
  NULL, //LPSECURITY_ATTRIBUTES lpThreadAttributes,
  FALSE, //bInheritHandles,
  NULL, //DWORD dwCreationFlags,
  NULL, //LPVOID lpEnvironment,
  NULL, //LPCTSTR lpCurrentDirectory,
  &si, //LPSTARTUPINFO lpStartupInfo,
  &pi, //LPPROCESS_INFORMATION lpProcessInformation))
{
    // if window is still visible - brute-force attack
    ::WaitForInputIdle(pi.hProcess, 10000);

    // find the main window
    DWORD dwProcessId = 0;
    HWND hWndMain = NULL;
    HWND hWnd = ::GetWindow(::GetDesktopWindow(), GW_CHILD);
    while(NULL != hWnd)
    {
        DWORD dwThreadId =
        ::GetWindowThreadProcessId(hWnd, &dwProcessId);
        if((dwThreadId == processInfo.dwThreadId) &&
       (dwProcessId == processInfo.dwProcessId))
       {
           const int nMaxCount = 256;
           TCHAR pszClassName[nMaxCount];
           ::GetClassName(hWnd, pszClassName, nMaxCount);
           if(!_tcsicmp(pszClassName, _T("find out the window class of IE using spy")))
           {
               hWndMain = hWnd;
               break;
           }
       }
       hWnd = ::GetWindow(hWnd, GW_HWNDNEXT);
    }    
    if(hWndMain) ::ShowWindow(hWndMain, SW_HIDE);

    ::CloseHandle(pi.hProcess);
    ::CloseHandle(pi.hThread);
}

Barakat S. · Answer 2 · 2012-10-14T15:37:00

Solution 2

I can't tell what szTemp is used for, but If you are trying to open a web page, just simply type:

C++

HINSTANCE hInstance;

hInstance = ShellExecute(NULL, TEXT("open"), TEXT("http://www.google.com.sa/"), NULL, NULL, SW_HIDE);

This code invokes the default web browser, many people use different browsers, and opens that URL.

Posted 14-Oct-12 15:37pm

Barakat S.

Comments

Susanta578 16-Oct-12 10:16am

Thanks for the solution. But SW_HIDE is not working in windows8 and IE 10 even if sztemp is null.