public int GetInfoTip(QITIPF dwFlags, out string ppwszTip)
{
string sValues = string.Empty;
foreach (Column column in _folderObj.Columns)
{
sValues += string.Format("{0}: {1}\r\n", column.Name, _folderObj.GetColumnValue(column));
}
sValues = sValues.TrimEnd('\n');
sValues = sValues.TrimEnd('\r');
ppwszTip = sValues;
return(WinError.S_OK);
}
/// <summary>
/// Gets the info tip text for an item.
/// </summary>
/// <param name="dwFlags">Flags that direct the handling of the item from which you're retrieving the info tip text. This value is commonly zero.</param>
/// <param name="ppwszTip">The address of a Unicode string pointer that, when this method returns successfully, receives the tip string pointer. Applications that implement this method must allocate memory for ppwszTip by calling CoTaskMemAlloc.
/// Calling applications must call CoTaskMemFree to free the memory when it is no longer needed.</param>
/// <returns>
/// Returns S_OK if the function succeeds. If no info tip text is available, ppwszTip is set to NULL. Otherwise, returns a COM-defined error value.
/// </returns>
int IQueryInfo.GetInfoTip(QITIPF dwFlags, out string ppwszTip)
{
// Do we need to get the tip on a single line?
var singleLine = dwFlags.HasFlag(QITIPF.QITIPF_SINGLELINE);
// Now work out what type of info to get.
RequestedInfoType infoType;
if (dwFlags.HasFlag(QITIPF.QITIPF_USENAME))
{
infoType = RequestedInfoType.Name;
}
else if (dwFlags.HasFlag(QITIPF.QITIPF_LINKUSETARGET))
{
infoType = RequestedInfoType.InfoOfShortcutTarget;
}
else if (dwFlags.HasFlag(QITIPF.QITIPF_LINKNOTARGET))
{
infoType = RequestedInfoType.InfoOfShortcut;
}
else
{
infoType = RequestedInfoType.InfoTip;
}
try
{
// Get the requested info.
var infoTip = GetInfo(infoType, singleLine);
// Set the tip. The runtime marshals out strings with CoTaskMemAlloc for us.
ppwszTip = infoTip;
}
catch (Exception exception)
{
// DebugLog the exception.
LogError("An exception occured getting the info tip.", exception);
// If an exception is thrown, we cannot return any info.
ppwszTip = string.Empty;
}
// Return success.
return(WinError.S_OK);
}
/// <summary>
/// Gets the info tip text for an item.
/// </summary>
/// <param name="dwFlags">Flags that direct the handling of the item from which you're retrieving the info tip text. This value is commonly zero.</param>
/// <param name="ppwszTip">The address of a Unicode string pointer that, when this method returns successfully, receives the tip string pointer. Applications that implement this method must allocate memory for ppwszTip by calling CoTaskMemAlloc.
/// Calling applications must call CoTaskMemFree to free the memory when it is no longer needed.</param>
/// <returns>
/// Returns S_OK if the function succeeds. If no info tip text is available, ppwszTip is set to NULL. Otherwise, returns a COM-defined error value.
/// </returns>
int IQueryInfo.GetInfoTip(QITIPF dwFlags, out string ppwszTip)
{
// Do we need to get the tip on a single line?
var singleLine = dwFlags.HasFlag(QITIPF.QITIPF_SINGLELINE);
// Now work out what type of info to get.
RequestedInfoType infoType;
if(dwFlags.HasFlag(QITIPF.QITIPF_USENAME))
infoType = RequestedInfoType.Name;
else if(dwFlags.HasFlag(QITIPF.QITIPF_LINKUSETARGET))
infoType = RequestedInfoType.InfoOfShortcutTarget;
else if(dwFlags.HasFlag(QITIPF.QITIPF_LINKNOTARGET))
infoType = RequestedInfoType.InfoOfShortcut;
else
infoType = RequestedInfoType.InfoTip;
try
{
// Get the requested info.
var infoTip = GetInfo(infoType, singleLine);
// Set the tip. The runtime marshals out strings with CoTaskMemAlloc for us.
ppwszTip = infoTip;
}
catch (Exception exception)
{
// Log the exception.
LogError("An exception occured getting the info tip.", exception);
// If an exception is thrown, we cannot return any info.
ppwszTip = string.Empty;
}
// Return success.
return WinError.S_OK;
}
