HANDLE PrnHandle;
if (OpenPrinter("EPSON Stylus Photo R270 Series",&PrnHandle,NULL))
{
unsigned char buf[8192];
DWORD dwSize;
if (GetPrinter(PrnHandle,2,buf,sizeof(buf),
&dwSize)) {
PRINTER_INFO_2* pInfo;
pInfo = (PRINTER_INFO_2*)buf;
//pInfo->Status 就是打印机的状态,详细的代码可以
//参见winspool.h中以PRINTER_STATUS开头的宏定义
if(pInfo->Status==PRINTER_STATUS_PAUSED)
AfxMessageBox("a");
else if(pInfo->Status==PRINTER_STATUS_PENDING_DELETION)
AfxMessageBox("b");
///////////以上pInfo->Status代码试验不成功,哪位知道原因请告知,谢谢
if (pInfo->Attributes&PRINTER_ATTRIBUTE_WORK_OFFLINE)//测试成功
{
AfxMessageBox("offline");
}
else
{
AfxMessageBox("online");
}
}
ClosePrinter(PrnHandle);
}
上面是判断打印机是否连机的。
下面是判断打印任务是否正常完成的:
SetTimer(1,500,NULL);//用定时器来完成
响应函数:
switch(nIDEvent)
{
case 1:
{
JOB_INFO_2 *pJobs;
int cJobs,
i;
DWORD dwPrinterStatus;
if (!GetJobs(hPrinter, &pJobs, &cJobs, &dwPrinterStatus))
return ;
for (i=0; i < cJobs; i++)
{
if (pJobs[i].Status &
(JOB_STATUS_ERROR |
JOB_STATUS_OFFLINE |
JOB_STATUS_PAPEROUT |
JOB_STATUS_BLOCKED_DEVQ))
{
KillTimer(1);
AfxMessageBox(pJobs[i].pDocument);
free( pJobs );
return ;
}
}
free( pJobs );
}
break;
default:
break;
}
用到的方法:
BOOL GetJobs(HANDLE hPrinter, /* Handle to the printer. */
JOB_INFO_2 **ppJobInfo, /* Pointer to be filled. */
int *pcJobs, /* Count of jobs filled. */
DWORD *pStatus) /* Print Queue status. */
{
DWORD cByteNeeded,
nReturned,
cByteUsed;
JOB_INFO_2 *pJobStorage = NULL;
PRINTER_INFO_2 *pPrinterInfo = NULL;
/* Get the buffer size needed. */
if (!GetPrinter(hPrinter, 2, NULL, 0, &cByteNeeded))
{
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
return FALSE;
}
pPrinterInfo = (PRINTER_INFO_2 *)malloc(cByteNeeded);
if (!(pPrinterInfo))
/* Failure to allocate memory. */
return FALSE;
LPCSTR str="sssssssssss";
/* Get the printer information. */
if (!GetPrinter(hPrinter,2,(unsigned char *)(LPSTR)pPrinterInfo,cByteNeeded,&cByteUsed))
{
/* Failure to access the printer. */
free(pPrinterInfo);
pPrinterInfo = NULL;
return FALSE;
}
/* Get job storage space. */
if (!EnumJobs(hPrinter,
0,
pPrinterInfo->cJobs,
2,
NULL,
0,
(LPDWORD)&cByteNeeded,
(LPDWORD)&nReturned))
{
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
{
free(pPrinterInfo);
pPrinterInfo = NULL;
return FALSE;
}
}
pJobStorage = (JOB_INFO_2 *)malloc(cByteNeeded);
if (!pJobStorage)
{
/* Failure to allocate Job storage space. */
free(pPrinterInfo);
pPrinterInfo = NULL;
return FALSE;
}
ZeroMemory(pJobStorage, cByteNeeded);
/* Get the list of jobs. */
if (!EnumJobs(hPrinter,
0,
pPrinterInfo->cJobs,
2,
(LPBYTE)pJobStorage,
cByteNeeded,
(LPDWORD)&cByteUsed,
(LPDWORD)&nReturned))
{
free(pPrinterInfo);
free(pJobStorage);
pJobStorage = NULL;
pPrinterInfo = NULL;
return FALSE;
}
/*
* Return the information.
*/
*pcJobs = nReturned;
*pStatus = pPrinterInfo->Status;
*ppJobInfo = pJobStorage;
free(pPrinterInfo);
return TRUE;
}
需要插入头文件#include <winspool.h>
posted on 2009-07-15 17:49
似水之心 阅读(5874)
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