如何得到系统中安装的打印机名

[zhjie374]

比如安装了3个打印,有本地,网络的,还有虚拟的.
什么函数可以枚举这些信息,特别的要得到打印机名称.

谢谢

[casinosun]

读注册表

[casinosun]

EnumPrinters 不知是否能列举虚拟的

[zhjie374]

EnumPrinters我正在测试,不知道有没有例子,我测了几下都没有拿到.

[bobob]

这是微软的例子中的一段,你看看吧
BOOL DisplayEnumPrintersInfo (HWND hwnd)
{
DWORD dwBytesNeeded;
DWORD dwPrtRet1, dwPrtRet2;
DWORD dwMaxPrt;
LPTSTR lpName = gdwEnumFlags & PRINTER_ENUM_NAME ? gszEnumName : NULL;

LPPRINTER_INFO_1 pPrtInfo1;
LPPRINTER_INFO_2 pPrtInfo2;

BOOL bReturn = TRUE;

//
// get byte count needed for buffer, alloc buffer, the enum the printers
//

EnumPrinters (gdwEnumFlags, lpName, 1, NULL, 0, &dwBytesNeeded,
&dwPrtRet1);

//
// (simple error checking, if these work assume rest will too)
//

if (!(pPrtInfo1 = (LPPRINTER_INFO_1) LocalAlloc (LPTR, dwBytesNeeded)))
{
ErrMsgBox (GetStringRes(IDS_ENUMPRTLALLOCFAIL), GetStringRes2(ERR_MOD_NAME));
bReturn = FALSE;
goto display_prts_info_done1;
}

if (!EnumPrinters (gdwEnumFlags, lpName, 1, (LPBYTE) pPrtInfo1,
dwBytesNeeded, &dwBytesNeeded, &dwPrtRet1))
{
TCHAR tcBuffer[256];
wsprintf (tcBuffer, "%s, 1, GetLastError: %d", GetStringRes2(ERR_MOD_NAME), GetLastError());
ErrMsgBox (GetStringRes(IDS_ENUMPRT1FAIL), tcBuffer);
bReturn = FALSE;
goto display_prts_info_done2;
}

//
// If we don't get any printers from the Level == 1 call, there is
// no point in continuing... report it, free memory, and return.
//

if (dwPrtRet1 == 0)
{
MessageBox (ghwndMain,
(LPCTSTR) "EnumPrinters (Level == 1) returned 0 printers",
GetStringRes2(ERR_MOD_NAME),
MB_OK);
bReturn = FALSE;
goto display_prts_info_done2;
}


//
// Call EnumPrinters again with Level == 2.
//
// get byte count needed for buffer, alloc buffer, the enum the printers
//

EnumPrinters (gdwEnumFlags, lpName, 2, NULL, 0, &dwBytesNeeded,
&dwPrtRet2);

pPrtInfo2 = (LPPRINTER_INFO_2) LocalAlloc (LPTR, dwBytesNeeded);

EnumPrinters (gdwEnumFlags, lpName, 2, (LPBYTE) pPrtInfo2,
dwBytesNeeded, &dwBytesNeeded, &dwPrtRet2);

//
// Calling EnumPrinters with Level == 2 frequently returns 0 printers.
// If so display only the PRINTER_INFO_1 structures we got before.
//

if (dwPrtRet2 == 0)
{
dwMaxPrt = dwPrtRet1;
pPrtInfo2 = NULL;
} else {
dwMaxPrt = dwPrtRet1 > dwPrtRet2 ? dwPrtRet2 : dwPrtRet1;

}



SetEnumPrintersDlgFields (hwnd, dwMaxPrt, pPrtInfo1, pPrtInfo2);


LocalFree (LocalHandle (pPrtInfo2));

display_prts_info_done2:

LocalFree (LocalHandle (pPrtInfo1));

display_prts_info_done1:

return bReturn;
}