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| author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2022-03-25 18:03:19 +0100 |
|---|---|---|
| committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2022-03-29 13:56:14 +0100 |
| commit | 0cdb44f01f0e7cc5405b1358149e7719db77bf03 (patch) | |
| tree | 3913cfdf3c032ca408ada05599b4f7e955cf7f20 /src/printsupport | |
| parent | d85c6527b514e36ab06bdf4228113d458e16cae0 (diff) | |
Windows: Fix potential crash when retrieving default printer
GetDefaultPrinter() has been observed to return size == 0.
Pick-to: 6.3 6.2 5.15
Fixes: QTBUG-53290
Change-Id: Id4c7a06d14d368c792e15e55cacf2366b6aedc7b
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Diffstat (limited to 'src/printsupport')
| -rw-r--r-- | src/printsupport/platform/windows/qwindowsprintdevice.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/printsupport/platform/windows/qwindowsprintdevice.cpp b/src/printsupport/platform/windows/qwindowsprintdevice.cpp index a6aa9c6504..faf491d9a9 100644 --- a/src/printsupport/platform/windows/qwindowsprintdevice.cpp +++ b/src/printsupport/platform/windows/qwindowsprintdevice.cpp @@ -499,7 +499,7 @@ QStringList QWindowsPrintDevice::availablePrintDeviceIds() QString QWindowsPrintDevice::defaultPrintDeviceId() { DWORD size = 0; - if (GetDefaultPrinter(nullptr, &size) == ERROR_FILE_NOT_FOUND) + if (GetDefaultPrinter(nullptr, &size) == ERROR_FILE_NOT_FOUND || size < 2) return QString(); QScopedArrayPointer<wchar_t> name(new wchar_t[size]); |