spooler API研究——获取所有本地和网络打印机

╰半夏微凉° 2022-07-14 14:38 285阅读 0赞

直接上代码：

需包含头文件

\#include "Windows.h"  
\#include <WinSpool.h>      
\#pragma comment(lib, "Winspool.lib")

int findPrint()
    {
    	
    	DWORD i ;
    	DWORD dwSize;
            DWORD dwPrinters;
    	LPHANDLE  phPrinter; 
    	DWORD  dwFlags = PRINTER_ENUM_CONNECTIONS | PRINTER_ENUM_LOCAL  ;  
    
    	//获取数据长度等信息
    	EnumPrinters (dwFlags, NULL, 5, NULL, 0, &dwSize,     
            &dwPrinters);     
         
    	
        if (!(pPrinters = (LPPRINTER_INFO_5) LocalAlloc (LPTR, dwSize + 4)))     
        {//申请存储内存
    
            printf("EnumPrinters:%d\n",GetLastError());
    
    		return -1;
    	
        }     
         
        if (!EnumPrinters (dwFlags, NULL, 5, (LPBYTE) pPrinters,     
            dwSize, &dwSize, &dwPrinters))     
        {//枚举所有当地和远程打印机
    
    		printf("EnumPrinters:%d\n",GetLastError());
    		
    		return -1;
    
        }     
         
    
    	printf("total prints = %d\n",dwPrinters);
    	
    	bool blFound = false;
    
        for (i = 0; i < dwPrinters; i++)     
        {//输出打印机名称  
    			printf("Find Printer #[%d/%d]: %s\n",
    				i+1,
    				dwPrinters,
    				pPrinters->pPrinterName);        
             
    			if(strstr(pPrinters->pPrinterName,"HP"))
    			{//根据打印机名称获取指定打印机，比如打印机名称含HP
    				
    				blFound = true;
    
    				break;
    
    			}
    
    			pPrinters++;
        }    
    
    	return blFound ? 0 : -1 ;
    }