private static uint WinVerifyTrust(string fileName)
{
Guid wintrust_action_generic_verify_v2 = new Guid("{00AAC56B-CD44-11d0-8CC2-00C04FC295EE}");
uint result = 0;
using (WINTRUST_FILE_INFO fileInfo = new WINTRUST_FILE_INFO(fileName,
Guid.Empty))
using (UnmanagedPointer guidPtr = new UnmanagedPointer(Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Guid))),
AllocMethod.HGlobal))
using (UnmanagedPointer wvtDataPtr = new UnmanagedPointer(Marshal.AllocHGlobal(Marshal.SizeOf(typeof(WINTRUST_DATA))),
AllocMethod.HGlobal))
{
WINTRUST_DATA data = new WINTRUST_DATA(fileInfo);
IntPtr pGuid = guidPtr;
IntPtr pData = wvtDataPtr;
Marshal.StructureToPtr(wintrust_action_generic_verify_v2,
pGuid,
true);
Marshal.StructureToPtr(data,
pData,
true);
result = WinVerifyTrust(IntPtr.Zero,
pGuid,
pData);
}
return(result);
}
public static WinVerifyTrustResult WinVerifyTrust(string fileName)
{
WINTRUST_FILE_INFO fileInfo = new WINTRUST_FILE_INFO(fileName, Guid.Empty);
WINTRUST_DATA data = new WINTRUST_DATA(fileInfo);
uint result;
#if DEBUG
uint r2;
#endif
using (UnmanagedPointer guidPtr = new UnmanagedPointer(typeof(Guid), true))
using (UnmanagedPointer wvtDataPtr = new UnmanagedPointer(typeof(WINTRUST_DATA), true))
{
IntPtr pGuid = guidPtr;
IntPtr pData = wvtDataPtr;
Marshal.StructureToPtr(wintrust_action_generic_verify_v2, pGuid, false);
data.dwStateAction = NativeMethods.StateAction.Verify;
Marshal.StructureToPtr(data, pData, false);
result = NativeMethods.WinVerifyTrust(INVALID_HANDLE_VALUE, pGuid, pData);
data.dwStateAction = NativeMethods.StateAction.Close;
Marshal.StructureToPtr(data, pData, true);
#if DEBUG
r2 =
#endif
NativeMethods.WinVerifyTrust(INVALID_HANDLE_VALUE, pGuid, pData);
}
if ((result >= (uint)NativeMethods.TrustE.ProviderUnknown) && (result <= (uint)NativeMethods.TrustE.SubjectNotTrusted))
{
return((WinVerifyTrustResult)((int)(result - (uint)NativeMethods.TrustE.Unknown) + (int)WinVerifyTrustResult.FunctionCallFailed));
}
switch (result)
{
case NativeMethods.ERROR_SUCCESS:
return(WinVerifyTrustResult.Success);
case (uint)NativeMethods.TrustE.FileError:
return(WinVerifyTrustResult.FileError);
case (uint)NativeMethods.TrustE.BadMsg:
return(WinVerifyTrustResult.BadMsg);
case (uint)NativeMethods.TrustE.SecuritySettings:
return(WinVerifyTrustResult.SecuritySettings);
case (uint)NativeMethods.TrustE.ASN1BadTag:
return(WinVerifyTrustResult.ASN1BadTag);
case (uint)NativeMethods.TrustE.CounterSigner:
return(WinVerifyTrustResult.CounterSigner);
case (uint)NativeMethods.TrustE.BadDigest:
return(WinVerifyTrustResult.BadDigest);
case (uint)NativeMethods.TrustE.NoSignature:
return(WinVerifyTrustResult.NoSignature);
case (uint)NativeMethods.TrustE.CertExpired:
return(WinVerifyTrustResult.CertExpired);
case (uint)NativeMethods.TrustE.CertUntrustedRoot:
return(WinVerifyTrustResult.CertUntrustedRoot);
case (uint)NativeMethods.TrustE.CertChaining:
return(WinVerifyTrustResult.CertChaining);
case (uint)NativeMethods.TrustE.CertRevoked:
return(WinVerifyTrustResult.CertRevoked);
case (uint)NativeMethods.TrustE.CertWrongUsage:
return(WinVerifyTrustResult.CertWrongUsage);
case (uint)NativeMethods.TrustE.ExplicitDistrust:
return(WinVerifyTrustResult.ExplicitDistrust);
default:
return(WinVerifyTrustResult.FunctionCallFailed);
}
}
public IntPtr GetPixelPointer(int column, int row)
{
IntPtr rowPtr = GetRowPointer(row);
int columnoffset = PixRectInfo.GetPixelInformation().BytesPerPixel * column;
UnmanagedPointer ump = new UnmanagedPointer(rowPtr);
ump += columnoffset;
return (IntPtr)ump;
}
public IntPtr GetRowPointer(int row)
{
int offset = 0;
if (Orientation == PixmapOrientation.TopToBottom)
{
offset = BytesPerRow * row;
}
else
{
offset = (BytesPerRow * (Height - 1 - row));
}
UnmanagedPointer ump = new UnmanagedPointer(Pixels);
ump += offset;
return (IntPtr)ump;
}
