Here are the PrintUI commands that I use. I would test your parameters on a
target machine in a admin CMD box prior to integrating into a msi.
LPWSTR pwzAddPrinterCommand = L"\"%lsRunDll32.exe\"
PrintUI.dll,PrintUIEntry /if /b \"%ls\" /f \"%ls\" /r %ls /m \"%ls\" /u /q
/z /Gw";
LPWSTR pwzDelPrinterCommand = L"\"%lsRunDll32.exe\"
PrintUI.dll,PrintUIEntry /dl /n \"%ls\" /q /Gw";
LPWSTR pwzDelDriverCommand = L"\"%lsRunDll32.exe\"
PrintUI.dll,PrintUIEntry
/dd /m \"%ls\" /q /Gw";
Snippet of deferred CA code that uses the above commands. While this is
working the driver is not in the driver store and I have yet to work on a
DifxApi solution. There is other refactoring that I am in the process of
doing to extension project.
switch (iOperation)
{
case WCA_TODO_INSTALL:
case WCA_TODO_REINSTALL:
fDoQuietExec = true;
hr = RegOpen(HKEY_LOCAL_MACHINE, pwzPrinterKey,
KEY_QUERY_VALUE,
&hkPrinter);
if (ERROR_SUCCESS == hr) {
/*If the printer exsts, skip calling the
'install' command on PrintUI
api to avoid creating another printer*/
WcaLog(LOGMSG_VERBOSE, "Printer exists, so skip
calling install
action.\nPrinter Key: %ls\n", pwzPrinterKey);
fDoQuietExec = false;
break;
}
if (true == fDoQuietExec) {
hr = StrAllocFormatted(&pwzCommand,
pwzAddPrinterCommand, pwzSystemPath,
pwzModel, pwzInfPath, pwzPort, pwzName);
ExitOnFailure(hr, "failed to format the command
to install a printer");
hr = QuietExec(pwzCommand, dwTimeout);
ExitOnFailure1(hr, "QuietExec failed to execute
install command, %ls,
and may have timed out.", pwzCommand);
}
break;
case WCA_TODO_UNINSTALL:
//uninstalling so look for printers with names which
include our printer
name. Typically 'printer name (Copy 1)'
hr = RegOpen(HKEY_LOCAL_MACHINE, pwzPrintersKey,
KEY_READ, &hkPrinters);
ExitOnFailure1(hr, "Failed to open the Windows Printers
key: %ls, ",
pwzPrintersKey);
for (DWORD dwIndex = 0; /* exit via break below */;
++dwIndex)
{
ReleaseNullStr(pwzPrinterObject);
hr = RegKeyEnum(hkPrinters, dwIndex,
&pwzPrinterObject);
if (E_NOMOREITEMS == hr)
{
hr = S_OK;
break;
}
ExitOnFailure(hr, "Failed to enumerate printer
objects.");
if (NULL == wcsistr(pwzPrinterObject, pwzName))
{
//WcaLog(LOGMSG_VERBOSE, "RegKeyEnum
returned %ls, which is not of any
interest to us. Look for another printer.", pwzPrinterObject);
continue;
}
//create a list of printers with similar name,
to remove later
hr = WcaWriteStringToCaData(pwzPrinterObject,
&pwzRelatedPrinters);
ExitOnFailure2(hr, "failed to add printer ( %ls
) to the list: %ls",
pwzPrinterObject, pwzId);
cPrinters++;
}
ReleaseNullStr(pwz);
pwz = pwzRelatedPrinters;
while (pwz && *pwz)
{
ReleaseNullStr(pwzPrinterObject);
hr = WcaReadStringFromCaData(&pwz,
&pwzPrinterObject);
ExitOnFailure(hr, "failed to read related
printer name from related
printer list.");
//remove this printer
ReleaseNullStr(pwzCommand);
hr = StrAllocFormatted(&pwzCommand,
pwzDelPrinterCommand, pwzSystemPath,
pwzPrinterObject);
ExitOnFailure(hr, "failed to format the command
to remove a printer");
hr = QuietExec(pwzCommand, dwTimeout);
ExitOnFailure1(hr, "QuietExec failed to execute
uninstall printer
command, %ls, and may have timed out.", pwzCommand);
// Tick the progress bar along
hr = WcaProgressMessage(COST_RDPPRINTERS,
FALSE);
ExitOnFailure1(hr, "failed to tick progress bar
for printer instance:
%ls", pwzId);
}
//Remove the printer driver
ReleaseNullStr(pwzCommand);
hr = StrAllocFormatted(&pwzCommand,
pwzDelDriverCommand, pwzSystemPath,
pwzModel);
ExitOnFailure(hr, "failed to format the command to
remove a printer
driver");
hr = QuietExec(pwzCommand, dwTimeout);
ExitOnFailure1(hr, "QuietExec failed to execute
uninstall driver command,
%ls, and may have timed out.", pwzCommand);
break;
} //switch (iOperation)
--
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