FLOATOBJ_Sub function (winddi.h)
The FLOATOBJ_Sub function subtracts the second FLOATOBJ from the first, and returns with the result in the first parameter.
void FLOATOBJ_Sub( [in, out] PFLOATOBJ unnamedParam1, [in] PFLOATOBJ unnamedParam2 );
[in, out] unnamedParam1
Pointer to the first FLOATOBJ operand. When the function returns, pf will be reset to the value (pf - *pf1).
Pointer to the second FLOATOBJ operand.
The FLOATOBJ_Xxx services allow graphics drivers to emulate floating-point arithmetic. An NT-based operating system does not support kernel-mode floating-point operations on some systems.
|Minimum supported client||Available in Windows 2000 and later versions of the Windows operating systems.|
|Header||winddi.h (include Winddi.h)|