The wiauDbgHelper function formats a message and writes it to a log file, or debugger, or both.
void wiauDbgHelper( a, b, c, d );
fmt [in] - Pointer to a string that controls how an item or items in a variable argument list is to be formatted.
fname [in] - Pointer to a string containing the name of the function or method into which the call to wiauDbgHelper is inserted.
marker - Marks the beginning of a variable argument list.
prefix [in] - Pointer to a string containing a prefix (such as "ERROR " or "WARN ") associated with the message.
The wiauDbgHelper function is a general-purpose function that is used internally by many of the other wiauDbgXxx functions. While it can be used in WIA minidrivers, there are other limited-purpose functions provided that are more convenient to use.
|Header||wiautil.h (include Wiautil.h)|