I'm fairly new to CLR, I'm reading the c++/CLI documentation for setWindowPos and the function is defined like so.
BOOL WINAPI SetWindowPos( _In_ HWND hWnd, _In_opt_ HWND hWndInsertAfter, _In_ int X, _In_ int Y, _In_ int cx, _In_ int cy, _In_ UINT uFlags );
I have experience in c++ so I understand that, for example, "HWND" is the data type and "hWnd" is the variable name.
But what are "_in_" and "_in_opt_"?
I'm guessing they're short for "input variables" or something.
It is mentioned in the documentation that the hWndInsertAfter is optional. Does this mean I can simply omit/not bother passing a variable to to this parameter in my function call if I don't need to?
SetWindowPos(this,0,0,GetSystemMetrics(SM_CXMAXIMIZED),GetSystemMetrics(SM_CYMAXIMIZED),SWP_NOZORDER); //Note that we're one parameter short here (the second is missing)
(This would be confusing to me, as I've seen it written in other places that C++ does not support optional parameters. Only default parameters and overloading)