SystemParametersInfo error

This is a discussion on SystemParametersInfo error within the Windows Programming forums, part of the Platform Specific Boards category; Hi all, I am trying to port an application from VC++ 6.0 to Visual Studio 2008. The code is not ...

  1. #1
    ovi
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    SystemParametersInfo error

    Hi all,

    I am trying to port an application from VC++ 6.0 to Visual Studio 2008. The code is not written by me.

    When function SystemParametersInfo() is invocked it returns FALSE, but when I check the error with GetLastError(), return value is 0 (zero). Anyhow, the behaviour is like the function had failed.

    The same code works properly when compiled with VC++ 6.0

    What I am doing wrong?
    Thanks,
    ovi

  2. #2
    &TH of undefined behavior Fordy's Avatar
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    Quote Originally Posted by ovi View Post
    Hi all,

    I am trying to port an application from VC++ 6.0 to Visual Studio 2008. The code is not written by me.

    When function SystemParametersInfo() is invocked it returns FALSE, but when I check the error with GetLastError(), return value is 0 (zero). Anyhow, the behaviour is like the function had failed.

    The same code works properly when compiled with VC++ 6.0

    What I am doing wrong?
    Thanks,
    ovi
    There are various params to that function that are specific to the version of Windows. Post the code that returns FALSE

  3. #3
    ovi
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    Hi Fordy,

    Thanks for interest. Here is the piece of code with problems
    Code:
       int error =0;      //for debug
       TCHAR errmes[50];  //for debug
    
       NONCLIENTMETRICS ncm;
       ncm.cbSize = sizeof(NONCLIENTMETRICS);
    if(SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &ncm, 0))
    	{
    		AfxMessageBox("SytemParametersInfo = OK"); //for debug
    
    	}
    	else
    	{
    	   error = GetLastError();
    	   sprintf(errmes,"SystemParametersInfo ERROR\nLast Error = %d",error); //for debug
     	   AfxMessageBox(errmes);
    	}
          memcpy(&m_Logfont, &(ncm.lfMessageFont), sizeof(LOGFONT));

  4. #4
    &TH of undefined behavior Fordy's Avatar
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    Try set the size of the struct to "sizeof(NONCLIENTMETRICS) - sizeof(ncm.iPaddedBorderWidth);"

    There's an addition to that struct (iPaddedBorderWidth) that seems to screw it up between Vista & XP

    More info here - NONCLIENTMETRICS Structure (Windows)

  5. #5
    ovi
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    Thanks for the hint. Unfortunatelly, it doesn't work. It behaves exactly the same.
    Btw, I am using Windows XP.

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