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QuestionIntptr and dll Pin
Alessio Granzotto26-Feb-09 8:08
MemberAlessio Granzotto26-Feb-09 8:08 
Hi,
I have this function in a DLL.
long MatchPage (long hImage, long hTemplateList, long *hMatch, char *szTemplate, long iMinMark, long bRegister, long *iConfidence);

Purpose
Match a filled form image to a Template from a Template List.

Parameters
hImage: Image handle of filled form
hTemplateList:Handle of the Template List.
hMatch:Handle of a Match which can be used later by JIRegionsRecognize. The handle should be free later by JIMatchFree.
szTemplate:Template file name is returned here. File name is returned without path and without file name extension.
iMinMark:Minimal confidence for a match. Legal values are 0-100. Recommended value is 15.
bRegister:If 1, the registered image is returned in hImage if matching achieved.
iConfidence:Confidence of the Match.


Import in this way:
[DllImport("image.dll")]
public static extern long MatchPage(IntPtr hImage, IntPtr hTemplateList, out IntPtr hMatch, [MarshalAs(UnmanagedType.LPStr)] StringBuilder szTemplate, long iMinMark, long bRegister, out IntPtr iConfidence);

...and call in this way:
rc = (int) MatchPage(hImage, hTemplateList, out hMatch, matchingTemplate, 25, 1, out iConfidence);

but the compiler says:"Access Violation" .
Someone can help me please?
TY
AnswerRe: Intptr and dll Pin
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QuestionCan you pass a delegate that contains params object[] parameters to another degelate as a parameter? Pin
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