怎样知道打印的状态，比如缺纸等等？

[freehero]

[innerboy]

可以通过如下两个API轻松搞定！
OpenPrinter 获取指定打印机的句柄
BOOL OpenPrinter(
LPTSTR pPrinterName, // pointer to printer or server name
LPHANDLE phPrinter, // pointer to printer or server handle
LPPRINTER_DEFAULTS pDefault
// pointer to printer defaults structure
);

GetJob 获取打印作业信息
BOOL GetJob(
HANDLE hPrinter, // handle to printer
DWORD JobId, // job identifier value
DWORD Level, // data-structure level
LPBYTE pJob, // address of data-structure array
DWORD cbBuf, // count of bytes in array
LPDWORD pcbNeeded // address of value that contains count of
// bytes retrieved (or required)
);
试试吧！