ReadPrinter info Overview Group

The ReadPrinter function retrieves data from the specified printer.

BOOL ReadPrinter(

HANDLE hPrinter,	// handle of printer object
LPVOID pBuf,	// address of array of bytes that receives data
DWORD cbBuf,	// size, in bytes, of array
LPDWORD pNoBytesRead	// address of variable with number of bytes retrieved
);

Parameters

hPrinter: Identifies the printer for which to retrieve data.
pBuf: Points to an array of bytes that receives the printer data.
cbBuf: Specifies the size, in bytes, of the buffer to which pBuf points.
pNoBytesRead: Points to a variable that receives the number of bytes of data copied into the array to which pBuf points.

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

ReadPrinter returns an error if the device or the printer is not bidirectional.