| int __Win87EmSave(pWin87EmSaveArea, cbWin87EmSaveArea) | |||||
| void far *pWin87EmSaveArea; | /* buffer to receive state | */ | |||
| int cbWin87EmSaveArea; | /* size, in bytes, of buffer | */ | |||
The __Win87EmSave function saves the current states of the floating-point coprocessor (if one is present) and the floating-point emulator, copying the states to the buffer pointed to by pWin87EmSaveArea.
An application that calls __Win87EmSave should call the __Win87EmRestore function before carrying out any floating-point operations.
pWin87EmSaveArea
Points to the Win87EmSaveArea structure that is to receive the state of the floating-point emulator.
cbWin87EmSaveArea
Specifies the size, in bytes, of the structure to receive the emulator state.
This function returns zero if the function is successful. Otherwise, it returns a nonzero value.
An application can find out the size, in bytes, of the buffer needed to save the floating-point states by using the __Win87EmInfo function to retrieve the Win87EmInfoStruct structure. The SizeSaveArea member of this structure specifies the size of the buffer.