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plurals

PO
primarykey
Id
4163045
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2010-11-12T09:09:29.420
FavoriteCount
0
LastActivityDate
2010-11-12T09:17:44.610
LastEditDate
2010-11-12T09:17:44.610
LastEditorUserId
79536
OwnerUserId
79536
ParentId
3973293
PostTypeId
2
Score
6
ViewCount
0
LastEditorDisplayName
text
Body
No, there isn't. <a href="http://msdn.microsoft.com/en-us/library/aa446536.aspx">Microsoft documentation</a> specifies that: <blockquote> [...] the .NET Compact Framework only supports Unicode, and consequently only includes the CharSet.Unicode (and CharSet.Auto which equals Unicode) value, and does not support any of the clauses of the Declare statement. This means that the ExactSpelling property is also not supported. As a result, if your DLL function expects an ANSI string, you'll need to perform the conversion in the DLL, or convert the string to a byte array using the overloaded GetBytes method of the ASCIIEncoding class, before calling the function, since the .NET Compact Framework will always pass a pointer to the Unicode string. [...] </blockquote> The solution is: Functions in the DLL <pre><code>int MARSHALMOBILEDLL_API testString(const char* value); const char* MARSHALMOBILEDLL_API testReturnString(const char* value); </code></pre> Wrapper <pre><code>[DllImport("marshalMobileDll.dll")] public static extern int testString(byte[] value); [DllImport("marshalMobileDll.dll")] public static extern System.IntPtr testReturnString(byte[] value); </code></pre> Calling Code <pre><code>string s1 = "1234567"; int v = Wrapper.testString( Encoding.ASCII.GetBytes(s1)); string s2 = "abcdef"; IntPtr ps3 = Wrapper.testReturnString(Encoding.ASCII.GetBytes(s2)); string s3 = IntPtrToString(ps3); private string IntPtrToString(IntPtr intPtr) { string retVal = ""; byte b = 0; int i = 0; while ((b = Marshal.ReadByte(intPtr, i++)) != 0) { retVal += Convert.ToChar(b); } return retVal; } </code></pre>
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Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POPassing a C# string to an unmanaged C DLL in Windows Mobile
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. UStato
UserOwnerUserId
1. UStato
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POPassing a C# string to an unmanaged C DLL in Windows Mobile
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 PostTypePostTypeId
 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTAcceptedByOriginator
2. VO
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 PostPostId
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 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
3. VO
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 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

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