Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
INETCOMMANDCALLBACK
#include "l_bitmap.h"
#include "ltnet.h"
L_VOID pEXT_CALLBACK INETCOMMANDCALLBACK (hComputer, uCommand, uCommandID, nError, uParams, pParams, uExtra, pExtra, pUserData)
L_COMP hComputer; |
/* handle to a remote computer */ |
CMDTYPE uCommand; |
/* command type */ |
L_UINT uCommandID; |
/* command id */ |
L_INT nError; |
/* status of the received data */ |
L_UINT uParams; |
/* number of parameters */ |
pPARAMETER pParams; |
/* pointer to an array of parameters */ |
L_UINT uExtra; |
/* length */ |
L_CHAR * pExtra; |
/* pointer to extra data*/ |
L_VOID * pUserData; |
/* pointer to additional parameters */ |
Notifies the local computer that a command has been received from a remote computer
Parameter |
Description |
hComputer |
Handle to the remote computer that sent the command. |
uCommand |
Command received from the remote computer. For a list of possible values, refer to CMDTYPE. |
uCommandID |
Message Id. Each message sent by a member of a connection should have a unique ID. Since a member of a connection may send several messages, this ID allows that member to identify when a specific request has been completed. |
nError |
Determines whether the command was received properly. If not all the parameters were received properly, then nError will be set to an error code (usually ERROR_TRANSFER_ABORTED) |
uParams |
The number of parameters for this command. |
pParams |
Pointer to an array of PARAMETER structures that contain the parameters for the command. |
uExtra |
Length of any extra data sent with the command. |
pExtra |
Pointer to the extra data sent with the command. |
pUserData |
A void pointer that you can use to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. (This is the same pointer that you pass in the pUserData parameter of the calling function.) |
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Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function. |
Returns
None
Comments
A call to this function is generated when a computer receives a command request from a remote computer.
To use this callback function, it must be set using L_InetSetCommandCallback. If this callback function is not set, INETCALLBACK will be called instead.
Required DLLs and Libraries
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
Functions: |
L_InetSetCommandCallback, INETRESPONSECALLBACK, L_InetSetResponseCallback |
Topics: |
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Example
For an example, refer to L_InetSetCommandCallback.