CoInitializeSecurity call fails with error code RPC_E_TOO_LATE

In the VC++ MFC MDI, the  CoInitializeSecurity call fails with error code RPC_E_TOO_LATE

1. We can check (http://msdn.microsoft.com/en-us/library/windows/desktop/aa394603(v=vs.85).aspx) for WMI troubleshooting.

2. There is the example code in the http://support.microsoft.com/kb/948829

3. The code here (http://www.codeproject.com/Articles/216077/Making-Your-Cplusplus-Code-Robust) can help us solve the WMI execquery problem.

4. Please check http://msdn.microsoft.com/en-us/library/windows/desktop/aa393609(v=vs.85).aspx.  The key point is CoSetProxyBlanket function.

hres = CoSetProxyBlanket(
   pSvc,                        // Indicates the proxy to set
   RPC_C_AUTHN_WINNT,           // RPC_C_AUTHN_xxx
   RPC_C_AUTHZ_NONE,            // RPC_C_AUTHZ_xxx
   NULL,                        // Server principal name 
   RPC_C_AUTHN_LEVEL_CALL,      // RPC_C_AUTHN_LEVEL_xxx 
   RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
   NULL,                        // client identity
   EOAC_NONE                    // proxy capabilities 
);

SetFont for CButton

About the SetFont of the CButton, there is a example in the http://support.microsoft.com/kb/85518/en-us.

class CMyAboutBox : public CDialog
{
   CFont m_font;

   public:
      // Constructor -- This code assumes a dialog box
      // template named "ABOUTDLG" in the application's .RC file.

      CMyAboutBox(CWnd* pParentWnd = NULL) :
         CModalDialog("ABOUTDLG", pParentWnd) {};

      BOOL OnInitDialog();
};

It will be failed, if you put the CFont m_font in the OnInitDialog()

windbg local mode study

It will call dbgeng!LocalLiveKernelTargetInfo::InitDriver and then create kldbgdrv.sys in the c:\Windows\System32 folder.

PCI address to Device manager device description

TCHAR buf[MAX_DEVICE_ID_LEN];  // (Dynamically size this instead?)

PTSTR DriverNameToDeviceDesc (UCHAR bn, UCHAR dn, UCHAR fn, BOOLEAN DeviceId)
{
HDEVINFO  hDevInfo;
    SP_DEVINFO_DATA  DeviceInfoData;
    DWORD  i;
BOOL r;
int j=0;


    //  Create  a  HDEVINFO  with  all  present  devices.      
hDevInfo  =  SetupDiGetClassDevs(NULL,
               0,  //  Enumerator
               0,
               DIGCF_PRESENT    |  DIGCF_ALLCLASSES  );
 
    if  (hDevInfo  ==  INVALID_HANDLE_VALUE)
    {
               //  Insert  error  handling  here.
               return  NULL;
    }
       
    //  Enumerate  through  all  devices  in  Set.
    DWORD  DataT;
    DWORD  buffersize  =  0;
    DeviceInfoData.cbSize  =  sizeof(SP_DEVINFO_DATA);
   
for  (i=0;SetupDiEnumDeviceInfo(hDevInfo,i,
               &DeviceInfoData);i++)
    {
 
           if(SetupDiGetDeviceRegistryProperty(
                       hDevInfo,
                       &DeviceInfoData,
                       SPDRP_BUSNUMBER,
                       &DataT,
                       (PBYTE)buf,
                       MAX_DEVICE_ID_LEN,
                       &buffersize))
  {
  if(buffersize == 4 && (UCHAR) buf[0] == bn)
  {
   if(SetupDiGetDeviceRegistryProperty(
                       hDevInfo,
                       &DeviceInfoData,
                       SPDRP_ADDRESS,
                       &DataT,
                       (PBYTE)buf,
                       MAX_DEVICE_ID_LEN,
                       &buffersize))
{
if (buffersize == 4 && (UCHAR) buf[0] == fn && (UCHAR) buf[2] == dn)
{
if(SetupDiGetDeviceRegistryProperty(
hDevInfo,
&DeviceInfoData,
SPDRP_DEVICEDESC,
&DataT,
(PBYTE)buf,
MAX_DEVICE_ID_LEN,
&buffersize))
{
return buf;
}
else
{
SetupDiDestroyDeviceInfoList(hDevInfo);
return NULL;
}
}
}
}
  }
}
    //    Cleanup
    SetupDiDestroyDeviceInfoList(hDevInfo);  
    return  NULL;
}

About the GRID control for the VS MFC

I don't understand why MS don't try to provide a MFC GRID control.  We can try to make CListCtrl to be the Grid control style.  You can refer the MSDN document here (http://msdn.microsoft.com/en-us/library/ms364048(v=vs.80).aspx), but it's not easy.  Anyway, we can use the code (http://www.codeproject.com/Articles/8/MFC-Grid-control-2-27) in the codeproject to be the base and modify it.

Windows AHCI Link power management setting

1. Run Registry Editor (type "regedit" in the search field on the Start Menu).

2. Navigate to "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Power\PowerSettings\0012ee47-9041-4b5d-9b77-535fba8b1442\0b2d69d7-a2a1-449c-9680-f91c70521c60".

3. Change value "Attributes" to 2. At this step you won't have modified ANY functionality in Windows (except for a tiny detail in the power management USER interface), so it's 100% safe.

4. Reboot.

5. Now go to "Power Management" in Control Panel and click "Change plan settings" of your power plan, then click "Change advanced power settings".

6. Expand the "Hard Disk" settings tree. You'll see that now there is and ADDITIONAL setting: "AHCI Link Power Management - HIPM/DIPM". Expand this one.



--------------------------------------------------------------------------------------------------------

The default power setting for Balanced about ALPM (AC,DC).
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\0012ee47-9041-4b5d-9b77-535fba8b1442\0b2d69d7-a2a1-449c-9680-f91c70521c60\DefaultPowerSchemeValues\381b4222-f694-41f0-9685-ff5bb260df2e]
"ACSettingIndex"=dword:00000001
"DCSettingIndex"=dword:00000001

Some information is in the http://msdn.microsoft.com/en-us/library/windows/hardware/gg463243.aspx

Undocumented windbg command !chkallimg

!chkimg

The !chkimg extension detects corruption in the images of executable files by comparing them to the copy on a symbol store or other file repository.

!chkimg [Options] [-mmw LogFile LogOptions] [Module]

The !chkimg is useful for us to check the memory (code section) corruption problem.  But if you want to check all the images, you can use the command !chkallimg.  The weird thing is that it need to create the temp folder in the c:\ for !chkallimg command.

Windows -- how to send mail in the application

There is a good document to help us about this -- http://zabkat.com/blog/send-emails-with-CDOSYS.htm.  You can get first view about this.  And there is some sample code in the
http://www.experts-exchange.com/Programming/System/Windows__Programming/A_1820-Sending-Email-with-MAPI.html.

The easiest way is mailto..You can check http://msdn.microsoft.com/en-us/library/aa767737(VS.85).aspx.

The common way is Microsoft MAPI..http://msdn.microsoft.com/en-us/library/windows/desktop/dd296734(v=vs.85).aspx

Anyway..From the MS document..It say..[The use of Simple MAPI is discouraged. It may be altered or unavailable in subsequent versions of Windows.]

Anyway, the MAPI still work in the Win 7/Win 8.  But sometime, it will return MAPI_E_FAILURE.  Then you can check your application UAC setting.  You can check here (http://social.msdn.microsoft.com/Forums/en-US/outlookdev/thread/63e9f5b2-f5f2-4cf8-bdc2-ca1fad88ebe5).

PHP run executable file in the xampp of Windows

There is the document talk about this -- http://php.net/manual/en/function.exec.php
<?php function execInBackground($cmd) {
    if (substr(php_uname(), 0, 7) == "Windows"){
        pclose(popen("start /B ". $cmd, "r")); 
    }
    else {
        exec($cmd . " > /dev/null &");  
    }
} ?> 

And there is also another document talk about this -- http://www.somacon.com/p395.php.  In this document , it provide many methods to do this.  And after my try,   pclose(popen("start /B ". " c:\\new\\New2.bat", "r")); is workable.


For more information, you can check http://php.net/manual/en/function.popen.php.