XMMATRIX::operator()(size_t,size_t) function (directxmath.h)

Returns a reference to a matrix element of an instance XMMATRIX as specified by row and column arguments.

This operator returns a reference to a matrix element of an instance XMMATRIX as specified by row and column arguments.

Note This operator is only available when developing with C++.

Syntax

C++

float & operator()(
  size_t Row,
  size_t Column
) noexcept;

Row

Row containing the matrix element of interest. Row specification is 0 based.

Column

Column containing the matrix element of interest. Column specification is 0 based.

A reference to the matrix element specified by the operator's Row and Column arguments.

This operator is only available when building with _XM_NO_INTRINSICS_.

As a reference to the matrix element is returned, this operator can be used to update the value of an element of an instance of XMMATRIX.

The following example:


XMMATRIX mat; float& a= mat(1,2); a=42.0;

will set the value of the mat.m[1][2] to 42.0.

Requirement	Value
Target Platform	Windows
Header	directxmath.h