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Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
LInet::OnDataStart
#include "ltwrappr.h"
virtual L_INT LInet::OnDataStart(plConnection, nError)
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LInet * plConnection; |
/* instance of a remote computer */ |
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L_INT nError; |
/* error code */ |
Overridable function that notifies the computer that it has started to receive data.
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Parameter |
Description |
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plConnection |
Pointer to the instance of the remote computer that is sending the data. |
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nError |
If no error has occurred, nError will be SUCCESS. If nError is < SUCCESS, an error has occurred. |
Returns
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SUCCESS |
The function was successful. |
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< 1 |
An error occurred. Refer to Return Codes. |
Comments
Do not delete plConnection.
Required DLLs and Libraries
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LTNET For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
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Functions: |
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Topics: |
Example
// a user defined class derived from LInet should be used to support the OnDataStart callback function
// suppose it was named as LUserInetODStart
class LUserInetODStart : public LInet
{
protected:
virtual L_INT OnDataStart(LInet plConnection, L_INT nError);
};
L_INT LInet__OnDataStartExample()
{
L_INT nRet;
LUserInetODStart UserInet;
// connect to LEAD
nRet = UserInet.Connect("207.238.49.190", 1000);
if(nRet != SUCCESS)
return nRet;
return SUCCESS;
}
L_INT LUserInetODStart::OnDataStart(LInet plConnection, L_INT nError)
{
UNREFERENCED_PARAMETER(nError);
// other operations
return SUCCESS;
}