GenFilter | generic WDF filter that can be | Widget library
kandi X-RAY | GenFilter Summary
kandi X-RAY | GenFilter Summary
This is a generic WDF filter that can be loaded pretty much anywhere. It can serve as a starting-point for writing any sort of a device filter. As configured, this filter will instantiate as an upper filter of CD-ROM class devices. It claims READ, WRITE, and DEVICE CONTROL Requests and prints out the Request handle. It illustrates how to search for a particular IOCTL control code (look for "IOCTL_YOU_ARE_INTERESTED_IN"). The sample anso demonstrates how to send Requests to the Local I/O Target with "send-and-forget" and asynchronously with a Completion Routine Callback.
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QUESTION
I am working on a part of a program that applies different types of filters onto an already read data part of a bitmap image. The method in question gets the data stored in a 2-dim std::vector and furthermore a pointer to the function in which the filter is applied as arguments. By that we can generically apply different filters by using this method. My question is, are function pointers the only way to achieve this, or does C++ offer a more beautiful and more readable solution to achieve it?
This is the method this question is about. Second argument is the function pointer that is used to access the function in the if/else statement inside the for loops.
...ANSWER
Answered 2019-Jul-04 at 10:00The usual way to pass a function (or things that can be INVOKE
d) in C++ is by using a template parameter:
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