ColorKeyMask

[Wilbert]

I was looking at ColorKeyMask (layer.cpp) and saw that the function IsClose() is used. Is that an existing C++ function or is it defined in AviSynth somewhere in a place which I can't find?

[hanfrunz]

if you use MS-VC++: place the mouse over "IsClose", press left mouse button, choose goto definition or goto declaration.

hope that helps

[IanB]

See internal.hstatic __inline bool IsClose(int a, int b, unsigned threshold)
{ return (unsigned(a-b+threshold) <= threshold*2); }