-
Notifications
You must be signed in to change notification settings - Fork 0
/
driverfeatures.cpp
122 lines (101 loc) · 3.05 KB
/
driverfeatures.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
//
// driverfeatures.cpp
//
// dumpDriverFeatures()
//
// setPrinterProperty()
//
#include <windows.h>
#include <string>
#include <iostream>
#include <vector>
using std::string, std::endl, std::cout, std::cerr;
using std::vector, std::pair;
#include "utils.h"
#include "printerutils.h"
vector<name_value> dumpDriverFeatures( const string &driverKey, const string &feature )
{
LSTATUS rc;
vector<string> words;
vector<name_value> pairs;
HKEY key = NULL;
if (ERROR_SUCCESS == RegOpenKeyEx( HKEY_LOCAL_MACHINE, driverKey.c_str(),
0, KEY_READ, &key )) {
if (verbose) cout << "Got the key..." << endl;
DWORD data_size = 0, type = REG_BINARY;
rc = RegQueryValueEx( key, feature.c_str(), NULL, &type,
NULL, &data_size );
if (ERROR_SUCCESS == rc) {
if (verbose) cout << "Got the value size = " << data_size << endl;
BYTE value[data_size + 1];
rc = RegQueryValueEx( key, feature.c_str(), NULL, &type,
value, &data_size );
string valstring;
vector<int> starting_points;
for (ULONG i = 0, start = 0; i < sizeof(value); i++) {
if (value[i] == '\n') {
// skip newlines
}
else if (value[i] == 0) {
if (valstring != "") {
// cout << setw(2) << start << ": " << valstring << endl;
starting_points.push_back( start );
words.push_back( valstring );
}
start = i;
valstring = "";
}
else {
valstring += value[i];
}
}
if (verbose) cout << "There were " << words.size() << " words" << endl;
if (starting_points.size() != words.size()) {
cerr << "Warning: starting points and word counts don't match" << endl;
}
if ((words.size() & 1) != 0) {
words.pop_back();
}
for (auto s = words.begin(); s != words.end(); s++) {
string this_name = *s++;
pairs.push_back(name_value(this_name, *s));
}
}
RegCloseKey( key );
}
else {
cerr << "Can't open key, err = " << GetLastError() << endl;
}
return pairs;
}
// Set-PrinterProperty -PrinterName 'hplaser (HP LaserJet Professional P1606dn)'
// -PropertyName Config:DuplexUnit -Value TRUE
LSTATUS setPrinterProperty( const string &printer, const string &name,
const string &value )
{
LSTATUS rc = ERROR_SUCCESS;
string params = "Set-PrinterProperty -PrinterName '" + printer +
"' -PropertyName " + name + " -Value " + value;
SHELLEXECUTEINFO sei = {
.cbSize = sizeof(SHELLEXECUTEINFO),
.fMask = SEE_MASK_NOCLOSEPROCESS,
.lpVerb = "open",
.lpFile = "powershell.exe",
.lpParameters = params.c_str(),
.nShow = SW_HIDE,
};
if (verbose) {
cout << name << " = " << value << endl;
cout << sei.lpParameters << endl;
}
rc = ShellExecuteEx(&sei);
WaitForSingleObject( sei.hProcess, INFINITE );
DWORD exit_code = 0;
GetExitCodeProcess( sei.hProcess, &exit_code );
if (exit_code != ERROR_SUCCESS) {
LSTATUS last_error = GetLastError();
cerr << "A little problem with powershell : " << rc <<
", GetLastError() = " << last_error << endl;
}
return rc;
}