IsInvalid

Base:

property

IsInvalid

System.Runtime.InteropServices.SafeHandle.IsInvalid

6 overrides of IsInvalid

System.IO.MemoryMappedFiles (1)

Microsoft\Win32\SafeMemoryMappedFileHandle.Unix.cs (1)

89public override bool IsInvalid => (long)handle <= 0;

System.IO.Pipes (1)

Microsoft\Win32\SafeHandles\SafePipeHandle.Unix.cs (1)

69public override bool IsInvalid

System.Net.Http.WinHttpHandler (1)

System\Net\Http\WinHttpChannelBinding.cs (1)

40public override bool IsInvalid

System.Net.Security (2)

src\runtime\src\libraries\Common\src\System\Net\Security\Unix\SafeDeleteContext.cs (1)

24public override bool IsInvalid

System\Net\Security\Pal.Managed\SafeChannelBindingHandle.cs (1)

59public override bool IsInvalid => handle == IntPtr.Zero;

System.Private.CoreLib (1)

src\runtime\src\libraries\System.Private.CoreLib\src\Microsoft\Win32\SafeHandles\SafeFileHandle.Unix.cs (1)

171public override bool IsInvalid

164 references to IsInvalid

aspire (2)

Processes\IsolatedProcess.Windows.cs (1)

313if (processHandle.IsClosed || processHandle.IsInvalid)

Processes\WindowsProcessInterop.cs (1)

673if (processHandle.IsClosed || processHandle.IsInvalid)

Microsoft.AspNetCore.Cryptography.Internal (2)

SafeHandles\SafeLibraryHandle.cs (2)

70if (numCharsOutput != 0 && messageHandle != null && !messageHandle.IsInvalid) 114if (handle == null || handle.IsInvalid)

Microsoft.AspNetCore.DataProtection (1)

Cng\DpapiSecretSerializerHelper.cs (1)

352if (unprotectedDataHandle != null && !unprotectedDataHandle.IsInvalid)

Microsoft.AspNetCore.Server.HttpSys (1)

NativeInterop\SafeLibraryHandle.cs (1)

59if (handle == null || handle.IsInvalid)

Microsoft.AspNetCore.Server.Kestrel.Core (1)

Internal\TlsConnectionFeature.cs (1)

209if (binding is null || binding.IsInvalid || binding.IsClosed)

Microsoft.VisualBasic.Forms (1)

Microsoft\VisualBasic\Helpers\NativeTypes.vb (1)

43Debug.Assert(IsInvalid, "Safe handle should only be set once.")

Microsoft.Win32.Registry (6)

Microsoft\Win32\RegistryKey.cs (6)

235if (ret == 0 && !result.IsInvalid) 460if (ret == 0 && !foreignHKey.IsInvalid) 507if (ret == 0 && !result.IsInvalid) 551if (ret == 0 && !result.IsInvalid) 578if (ret == 0 && !result.IsInvalid) 696if (ret != 0 || result.IsInvalid)

PresentationCore (30)

MS\Internal\FontCache\FontCacheUtil.cs (1)

852if (_viewHandle.IsInvalid)

MS\Internal\IO\Packaging\ByteRangeDownloader.cs (2)

409if (eventHandle.IsInvalid || eventHandle.IsClosed) 488if (_eventHandle != null && !_eventHandle.IsInvalid && !_eventHandle.IsClosed)

src\wpf\src\Microsoft.DotNet.Wpf\src\Common\Graphics\exports.cs (2)

768Invariant.Assert(pBitmapSource != null && !pBitmapSource.IsInvalid); 786Invariant.Assert(pMedia != null && !pMedia.IsInvalid);

System\Windows\Media\ColorContextHelper.cs (1)

101return _profileHandle == null || _profileHandle.IsInvalid;

System\Windows\Media\ColorTransform.cs (2)

57if (srcContext.ProfileHandle != null && !srcContext.ProfileHandle.IsInvalid) 60if (dstContext.ProfileHandle != null && !dstContext.ProfileHandle.IsInvalid)

System\Windows\Media\ColorTransformHelper.cs (4)

57if (sourceProfile == null || sourceProfile.IsInvalid) 62if (destinationProfile == null || destinationProfile.IsInvalid) 98if (_transformHandle == null || _transformHandle.IsInvalid) 108if (_transformHandle == null || _transformHandle.IsInvalid)

System\Windows\Media\Imaging\BitmapMetadataEnumerator.cs (1)

162Debug.Assert(metadataHandle != null && !metadataHandle.IsInvalid);

System\Windows\Media\Imaging\BitmapPalette.cs (5)

151Debug.Assert(bitmapSource != null && !bitmapSource.IsInvalid); 214if (_palette == null || _palette.IsInvalid) 253Debug.Assert(palette != null && !palette.IsInvalid); 266Debug.Assert(_palette != null && !_palette.IsInvalid); 295Debug.Assert(_palette != null && !_palette.IsInvalid);

System\Windows\Media\Imaging\BitmapSource.cs (3)

568if (_wicSource == null || _wicSource.IsInvalid) 750if (_convertedDUCEPtr != null && !_convertedDUCEPtr.IsInvalid) 1754if ((palette == null) || (palette.InternalPalette == null) || palette.InternalPalette.IsInvalid)

System\Windows\Media\Imaging\InteropBitmapSource.cs (3)

46Debug.Assert (_unmanagedSource != null && !_unmanagedSource.IsInvalid); 77Debug.Assert (_unmanagedSource != null && !_unmanagedSource.IsInvalid); 124Debug.Assert (_unmanagedSource != null && !_unmanagedSource.IsInvalid);

System\Windows\Media\Imaging\PropVariant.cs (1)

404if (metadataHandle == null || metadataHandle.IsInvalid)

System\Windows\Media\Imaging\RenderTargetBitmap.cs (2)

244Debug.Assert(renderTargetBitmap != null && !renderTargetBitmap.IsInvalid); 250Debug.Assert(bitmapSource != null && !bitmapSource.IsInvalid);

System\Windows\Media\MediaPlayerState.cs (3)

790if (_nativeMedia != null && !_nativeMedia.IsInvalid) 976Debug.Assert(_nativeMedia != null && !_nativeMedia.IsInvalid); 983if (_nativeMedia == null || _nativeMedia.IsInvalid)

PresentationFramework (9)

MS\Internal\AppModel\IconHelper.cs (2)

227if (colorBitmap.IsInvalid || bits == IntPtr.Zero) 242if (maskBitmap.IsInvalid)

MS\Internal\Ink\PenCursorManager.cs (1)

228if ( finalCursor.IsInvalid )

System\Windows\Controls\Primitives\Popup.cs (1)

2780if (iconInfo.hbmColor.IsInvalid)

System\Windows\Standard\NativeMethods.cs (5)

1432if (dc.IsInvalid) 1463if (dc.IsInvalid) 1484if (dc.IsInvalid) 1595if (!this.IsInvalid) 2396if (hBitmap.IsInvalid)

ReachFramework (1)

MS\Internal\Printing\Configuration\COMPSTUISRID.cs (1)

35if (handle != null && !handle.IsInvalid)

System.Diagnostics.EventLog (5)

System\Diagnostics\EventLog.cs (1)

655if (!handle.IsInvalid)

System\Diagnostics\EventLogInternal.cs (4)

672if (hModule == null || hModule.IsInvalid) 683if (hModule.IsInvalid) 1075if (handle.IsInvalid) 1100if (handle.IsInvalid)

System.Diagnostics.PerformanceCounter (9)

System\Diagnostics\PerformanceData\CounterSet.cs (1)

195if (_provider._hProvider.IsInvalid)

System\Diagnostics\PerformanceData\CounterSetInstanceCounterDataSet.cs (1)

120if (_instance._counterSet._provider._hProvider.IsInvalid)

System\Diagnostics\PerformanceDataRegistryKey.cs (1)

28if (ret == 0 && !foreignHKey.IsInvalid)

System\Diagnostics\SharedPerformanceCounter.cs (6)

51if (!procHandle.IsInvalid) 1306if ((error == Interop.Errors.ERROR_INVALID_PARAMETER) && procHandle.IsInvalid) 1318if (!procHandle.IsInvalid && startTime != -1) 1337if (!procHandle.IsInvalid) 1661if (_fileViewAddress.IsInvalid) 1752if (_fileViewAddress.IsInvalid)

System.Diagnostics.Process (3)

Microsoft\Win32\SafeHandles\SafeProcessHandle.cs (1)

484if (IsInvalid)

Microsoft\Win32\SafeHandles\SafeProcessHandle.Unix.cs (1)

398if (!processHandle.IsInvalid)

System\Diagnostics\Process.Unix.cs (1)

442Debug.Assert(!startedProcess.IsInvalid);

System.DirectoryServices (1)

System\DirectoryServices\ActiveDirectory\Utils.cs (1)

2157Debug.Assert(!policyHandle.IsInvalid);

System.DirectoryServices.AccountManagement (2)

System\DirectoryServices\AccountManagement\AD\SidList.cs (1)

105Debug.Assert(!policyHandle.IsInvalid);

System\DirectoryServices\AccountManagement\Utils.cs (1)

488Debug.Assert(!policyHandle.IsInvalid);

System.DirectoryServices.Protocols (5)

System\DirectoryServices\Protocols\ldap\LdapConnection.cs (1)

1161if (_needDispose && _ldapHandle != null && !_ldapHandle.IsInvalid)

System\DirectoryServices\Protocols\ldap\LdapConnection.Linux.cs (1)

33Debug.Assert(!_ldapHandle.IsInvalid);

System\DirectoryServices\Protocols\ldap\LdapSessionOptions.cs (3)

936if (con != null && con._ldapHandle != null && !con._ldapHandle.IsInvalid) 1116if (ldapConnection != null && ldapConnection._ldapHandle != null && !ldapConnection._ldapHandle.IsInvalid) 1126if (ldapConnection != null && ldapConnection._ldapHandle != null && !ldapConnection._ldapHandle.IsInvalid)

System.Net.Http.WinHttpHandler (6)

src\runtime\src\libraries\Common\src\Interop\Windows\WinHttp\Interop.SafeWinHttpHandle.cs (1)

37Debug.Assert(!parentHandle.IsInvalid);

System\Net\Http\WinHttpHandler.cs (2)

1059if (requestHandle.IsInvalid) 1641if (handle.IsInvalid)

System\Net\Http\WinHttpResponseStream.cs (2)

224Debug.Assert(!_requestHandle.IsInvalid); 235Debug.Assert(!_requestHandle.IsInvalid);

System\Net\Http\WinHttpTrailersHelper.cs (1)

48if (sessionHandle.IsInvalid) return false;

System.Net.Security (8)

src\runtime\src\libraries\Common\src\Interop\Unix\System.Net.Security.Native\Interop.NetSecurityNative.cs (1)

194if (channelBinding.IsInvalid || size < sizeof(SecChannelBindings))

src\runtime\src\libraries\Common\src\System\Net\Security\SafeCredentialReference.cs (1)

20if (target.IsInvalid || target.IsClosed)

System\Net\Security\SslSessionsCache.cs (4)

126if (credentials == null || credentials.IsClosed || credentials.IsInvalid || credentials.Expiry < DateTime.UtcNow) 161if (creds.IsInvalid) 172if (credentials == null || credentials.IsClosed || credentials.IsInvalid || credentials.Expiry < utcNow) 177if (credentials == null || credentials.IsClosed || credentials.IsInvalid || credentials.Expiry < utcNow)

System\Net\Security\SslStream.Protocol.cs (1)

944if (!cachedCreds && _securityContext != null && !_securityContext.IsInvalid && _credentialsHandle != null && !_credentialsHandle.IsInvalid)

System\Net\Security\SslStream.TlsSessionWedge.cs (1)

132_credentialsHandle is not null && !_credentialsHandle.IsInvalid;

System.Private.CoreLib (3)

src\runtime\src\libraries\System.Private.CoreLib\src\System\Threading\EventWaitHandle.Unix.cs (1)

94if (waitHandle.IsInvalid)

src\runtime\src\libraries\System.Private.CoreLib\src\System\Threading\Mutex.Unix.cs (1)

73if (waitHandle.IsInvalid)

src\runtime\src\libraries\System.Private.CoreLib\src\System\Threading\Semaphore.Unix.cs (1)

52if (waitHandle.IsInvalid)

System.Security.Cryptography (22)

Microsoft\Win32\SafeHandles\NCryptSafeHandles.cs (5)

95if (IsInvalid) 143return Holder == null && !IsInvalid && !IsClosed; 162!Holder.IsInvalid && 168return holderValid && !IsInvalid && !IsClosed; 180return Holder == null && !IsInvalid && !IsClosed;

Microsoft\Win32\SafeHandles\SafePasswordHandle.cs (1)

95if (IsInvalid)

src\runtime\src\libraries\Common\src\Interop\Windows\Advapi32\SafeHashHandle.cs (2)

23if (IsInvalid || IsClosed) 30Debug.Assert(!parent.IsInvalid);

src\runtime\src\libraries\Common\src\Interop\Windows\Advapi32\SafeKeyHandle.cs (2)

58if (IsInvalid || IsClosed) 65Debug.Assert(!parent.IsInvalid);

src\runtime\src\libraries\Common\src\System\Security\Cryptography\CngHelpers.cs (2)

63Debug.Assert(!ncryptHandle.IsInvalid); 119Debug.Assert(!ncryptHandle.IsInvalid);

src\runtime\src\libraries\Common\src\System\Security\Cryptography\X509Certificates\CertificateHelpers.Windows.cs (1)

179if (!freeKey && privateKey != null && !privateKey.IsInvalid)

System\Security\Cryptography\CapiHelper.Windows.cs (1)

538if (handle.IsInvalid)

System\Security\Cryptography\CngKey.cs (2)

19Debug.Assert(keyHandle != null && !keyHandle.IsInvalid && !keyHandle.IsClosed); 20Debug.Assert(providerHandle != null && !providerHandle.IsInvalid && !providerHandle.IsClosed);

System\Security\Cryptography\CngKey.OpenHandle.cs (1)

23if (keyHandle.IsClosed || keyHandle.IsInvalid)

System\Security\Cryptography\DSACryptoServiceProvider.Windows.cs (2)

104Debug.Assert(!hProv.IsInvalid); 157Debug.Assert(!hKey.IsInvalid);

System\Security\Cryptography\RSACryptoServiceProvider.Windows.cs (2)

90Debug.Assert(!hProv.IsInvalid); 143Debug.Assert(!hKey.IsInvalid);

System\Security\Cryptography\X509Certificates\ChainPal.Windows.cs (1)

27if (certChainHandle == null || certChainHandle.IsInvalid)

System.Security.Cryptography.Pkcs (5)

Microsoft\Win32\SafeHandles\SafeHeapAllocHandle.cs (1)

18if (result.IsInvalid)

src\runtime\src\libraries\Common\src\Interop\Windows\Advapi32\SafeHashHandle.cs (2)

23if (IsInvalid || IsClosed) 30Debug.Assert(!parent.IsInvalid);

src\runtime\src\libraries\Common\src\Interop\Windows\Advapi32\SafeKeyHandle.cs (2)

58if (IsInvalid || IsClosed) 65Debug.Assert(!parent.IsInvalid);

System.Speech (1)

Internal\ObjectToken\RegistryDataKey.cs (1)

75if (regHandle == null || regHandle.IsInvalid)

System.Threading.AccessControl (6)

System\Threading\EventWaitHandleAcl.cs (2)

59if (handle.IsInvalid) 136if (existingHandle.IsInvalid)

System\Threading\MutexAcl.cs (2)

45if (handle.IsInvalid) 127if (existingHandle.IsInvalid)

System\Threading\SemaphoreAcl.cs (2)

64if (handle.IsInvalid) 142if (handle.IsInvalid)

System.Windows.Forms.Primitives (1)

System\Windows\Forms\Animation\HighPrecisionTimer.cs (1)

524if (!waitableTimer.IsInvalid)

UIAutomationClient (1)

MS\Internal\Automation\ProxyManager.cs (1)

306if (processHandle.IsInvalid)

UIAutomationClientSideProviders (29)

MS\Internal\AutomationProxies\CommonGetThemePartSize.cs (1)

54if (!_hTheme.IsInvalid)

MS\Internal\AutomationProxies\CommonRemoteMemoryBlock.cs (1)

114if (ptr.IsInvalid)

MS\Internal\AutomationProxies\SafeThemeHandle.cs (1)

30return !IsInvalid ? CloseThemeData(handle) == (IntPtr)NativeMethods.S_OK : true;

MS\Internal\AutomationProxies\WindowsMenu.cs (1)

2586if (hProcess.IsInvalid)

MS\Internal\AutomationProxies\WindowsTreeView.cs (1)

1586if (hProcess.IsInvalid)

UIAutomationTypes (2)

src\wpf\src\Microsoft.DotNet.Wpf\src\Shared\MS\Win32\UnsafeNativeMethodsCLR.cs (2)

961if (hBitmap.IsInvalid) 976if (hIcon.IsInvalid)

WindowsFormsIntegration (1)

System\Windows\Integration\HostUtils.cs (1)

381return screenDC.IsInvalid ? defaultPixelsPerInch :