int main( )
{
return SystemAdd( 1, 2 );
}
PPERFSYSTEM
GetComputer (
HDLG hDlg,
WORD wControlID,
BOOL bWarn,
PPERFDATA *ppPerfData,
PPERFSYSTEM *ppSystemFirst
)
/*
Effect: Attempt to set the current computer to the one in the
hWndComputers dialog edit box. If this computer system
can be found, load the objects, etc. for the computer
and set pSystem and ppPerfdata to the values for this
system.
*/
{ // GetComputer
TCHAR szComputer [MAX_SYSTEM_NAME_LENGTH + 1] ;
PPERFSYSTEM pSystem;
TCHAR tempBuffer [LongTextLen] ;
DWORD dwBufferSize = 0;
LPTSTR pBuffer = NULL ;
DWORD dwLastError;
DialogText (hDlg, wControlID, szComputer) ;
// If necessary, add the system to the lists for this view.
pSystem = SystemGet (*ppSystemFirst, szComputer) ;
if (!pSystem) {
pSystem = SystemAdd (ppSystemFirst, szComputer, hDlg) ;
}
if (!pSystem && bWarn) {
dwLastError = GetLastError();
EditSetModified (GetDlgItem(hDlg, wControlID), FALSE) ;
// unable to get specified computer so set to:
// the first computer in the system list if present
// -- or --
// set he local machine if not.
pSystem = *ppSystemFirst; // set to first in list
if (pSystem == NULL) {
// this would mean the user can't access the local
// system since normally that would be the first one
// so the machine name will be restored to the
// local machine (for lack of a better one) but the
// system won't be added unless they want to explicitly
DialogSetString (hDlg, wControlID, LocalComputerName) ;
} else {
// set to name in system structure
DialogSetString (hDlg, wControlID, pSystem->sysName);
}
if (dwLastError != ERROR_ACCESS_DENIED) {
DlgErrorBox (hDlg, ERR_COMPUTERNOTFOUND) ;
} else {
// the appropriate error message has already been displayed
}
SetFocus (DialogControl(hDlg, wControlID)) ;
}
if (pSystem) {
if (PlayingBackLog ()) {
*ppPerfData =
LogDataFromPosition (pSystem, &(PlaybackLog.StartIndexPos)) ;
} else {
if (pSystem->lpszValue) {
// save the previous lpszValue string before
// SetSystemValueNameToGlobal screw it up
dwBufferSize = MemorySize (pSystem->lpszValue) ;
if (dwBufferSize <= sizeof(tempBuffer)) {
pBuffer = tempBuffer ;
} else {
pBuffer = MemoryAllocate (dwBufferSize) ;
}
memcpy (pBuffer, pSystem->lpszValue, dwBufferSize) ;
}
SetSystemValueNameToGlobal (pSystem);
UpdateSystemData (pSystem, ppPerfData) ;
if (pSystem->lpszValue) {
// retore the previous lpszValue string
memcpy (pSystem->lpszValue, pBuffer, dwBufferSize) ;
if (pBuffer != tempBuffer) {
MemoryFree (pBuffer) ;
}
}
}
}
return (pSystem) ;
} // GetComputer
