我使用下面的代码返回32位WinXP中的默认打印机 Pro，但现在我正在运行64 -bit Vista Business我收到一个错误： 使用System.Drawing.Printing; 使用（PrintDocument objPrintDocument = new PrintDocument （）） { string strDefaultPrinter = objPrintDocument.PrinterSettings.PrinterName; } 错误消息是：未安装打印机。这似乎来自一个名为HdevmodeInternal的方法 但是，我安装了几台打印机，默认打印机是 旧HP LaserJet 5. 上述代码是否不适用于64位Vista？有问题的应用程序是为x86编译的 ... 我最好使用WMI返回默认打印机的名称？ 我试图在谷歌和MSDN上找到一个解决方案，但是没有多少运气好吗？ 感激不尽的任何帮助。 - http ：//www.markrae
解决方案" Mark Rae" < ma ** @ markNOSPAMraewrote in message news：u5 ************** @ TK2MSFTNGP04.phx.gbl ... 我使用下面的代码返回32位WinXP中的默认打印机 Pro ，但现在我正在运行64位Vista Business我收到一个错误： 使用System.Drawing.Printing; 使用（PrintDocument objPrintDocument = new PrintDocument（）） { string strDefaultPrinter = objPrintDocument.PrinterSettings.PrinterName; } 错误消息是：未安装打印机。这似乎来自一个名为HdevmodeInternal的方法 但是，我安装了几台打印机，默认打印机是 旧HP LaserJet 5. 上述代码是否不适用于64位Vista？有问题的应用程序是为x86编译的 ... 我最好使用WMI返回默认打印机的名称？ 我试图在谷歌和MSDN上找到一个解决方案，但是没有多少运气好吗？ 感激不尽的任何帮助。 - www.markrae
适用于Vista 64和32位。如果您制作Microsoft XPS Document Writer会发生什么？默认打印机？ Willy。
" Willy Denoyette [MVP]" < wi ************* @ telenet.bewrote in message 新闻：％2 **************** @ TK2MSFTNGP06.phx.gbl ... " Mark Rae" < ma ** @ markNOSPAMraewrote in message news：u5 ************** @ TK2MSFTNGP04.phx.gbl ... > 我使用下面的代码返回32位WinXP Pro中的默认打印机，但现在我已经运行64位Vista Business我收到了一个错误： 使用System.Drawing.Printing; 使用（PrintDocument objPrintDocument = new PrintDocument（） ） 字符串strDefaultPrinter = objPrintDocument.PrinterSettings.PrinterName; 错误信息是：没有安装打印机。而且似乎来自一个名为HdevmodeInternal的方法 但是，我安装了几台打印机，默认打印机是旧的HP LaserJet 5. <上面的代码不能在64位Vista上运行吗？有问题的应用程序是为x86编译的... 我最好使用WMI返回默认打印机的名称吗？ 我试图在Google和MSDN上找到解决方案，但没有太多运气...... 感激不尽的任何帮助。 - www.markrae
适用于Vista 64和32位。如果您制作Microsoft XPS Document Writer会发生什么？默认打印机？
同样的事情......顺便提一下，它适用于我在32位Vista上...你有没有试过 它带有32在64位Vista上运行的应用程序...？ 此外，当我尝试查询objPrintDocument.PrinterSettings.PrinterName时，它会返回b $ b。默认打印机没有设置。，虽然肯定是...... 生成的Exception仍然没有InnerException的任何值，并且 < Exception> .TargetSite.Name是HdevmodeInternal。 - 我甚至无法在Google的任何地方找到 ！ - www.markrae
" Mark Rae" < ma ** @ markNOSPAMraewrote in message news：u4 ************** @ TK2MSFTNGP04.phx.gbl ... " Willy Denoyette [MVP]" < wi ************* @ telenet.bewrote in message 新闻：％2 **************** @ TK2MSFTNGP06.phx.gbl ... >" Mark Rae" < ma ** @ markNOSPAMrae写信息新闻：u5 ************** @ TK2MSFTNGP04.phx.gbl ... >> 我使用下面的代码返回32位WinXP Pro中的默认打印机，但现在我正在运行64 -bit Vista Business我收到了一个错误： 使用System.Drawing.Printing; 使用（PrintDocument objPrintDocument = new PrintDocument（）） { string strDefaultPrinter = objPrintDocument.PrinterSettings.PrinterName; } 错误信息是：没有安装打印机。而且，它似乎来自一个名为HdevmodeInternal的方法 但是，我安装了几台打印机，默认打印机是旧的HP LaserJet 5. <上面的代码不能在64位Vista上运行吗？有问题的应用程序是为x86编译的... 我最好使用WMI返回默认打印机的名称吗？ 我试图在Google和MSDN上找到解决方案，但没有太多运气...... 感激不尽的任何帮助。 - www.markrae
适用于Vista 64和32位。如果您制作Microsoft XPS Document Writer会发生什么？默认打印机？
同样的事情......顺便说一下，它适用于我在32位Vista上...你有没有尝试 它带有32在64位Vista上运行的应用程序应用程序......？
是的，X86和X64版本都适用于64位Vista Ultimate。 请注意，我总是将应用程序清单添加到我的可执行文件 程序集中。如果您没有向运行在 wow64下的应用程序添加清单，则此应用程序将获得注册表的虚拟化视图（部分 off）和文件系统（部分关闭）。 为了防止虚拟化，您必须添加如下清单： <？xml version =" 1.0"编码= QUOT; UTF-8英寸standalone =" yes"？> < assembly xmlns =" urn：schemas-microsoft-com：asm.v1" manifestVersion =" 1.0"> < assemblyIdentity version =" 1.0.0.0" name =" MyApplication.app">< / assemblyIdentity> < trustInfo xmlns =" urn：schemas-microsoft-com：asm.v2"> < security> < requestedPrivileges xmlns =" urn：schemas-microsoft-com：asm.v3"> < requestedExecutionLevel level =" asInvoker">< ; / requestedExecutionLevel> < / requestedPrivileges> < / security> < / trustInfo> < / assembly> 将上述内容保存在名为MyApplication.manifest的文件中，其中 " MyApplication"是程序集的名称（不是绝对必需的任何 名称将作为清单文件名）。 完成后，运行以下命令： mt -manifest MyApplication.manifest -outputresource：MyApplication.exe;＃1 mt.exe是VS2005的一部分。 我'我不确定这会有什么帮助，但值得一试。 威利。
Hi, I have used the code below to return the default printer in 32-bit WinXP Pro, but now that I am running 64-bit Vista Business I''m getting an error: using System.Drawing.Printing; using (PrintDocument objPrintDocument = new PrintDocument()) { string strDefaultPrinter = objPrintDocument.PrinterSettings.PrinterName; } The error message is: "No printers are installed." and which seems to come from a method called HdevmodeInternal However, I have several printers installed, and the default printer is an old HP LaserJet 5. Does the above code not work on 64-bit Vista? The app in question is compiled for x86... Would I be better off using WMI to return the name of the default printer? I''ve tried to find a solution in Google and MSDN, but haven''t had much luck... Any assistance gratefully received. -- www.markrae
解决方案 "Mark Rae" <ma**@markNOSPAMraewrote in message news:u5**************@TK2MSFTNGP04.phx.gbl... Hi, I have used the code below to return the default printer in 32-bit WinXP Pro, but now that I am running 64-bit Vista Business I''m getting an error: using System.Drawing.Printing; using (PrintDocument objPrintDocument = new PrintDocument()) { string strDefaultPrinter = objPrintDocument.PrinterSettings.PrinterName; } The error message is: "No printers are installed." and which seems to come from a method called HdevmodeInternal However, I have several printers installed, and the default printer is an old HP LaserJet 5. Does the above code not work on 64-bit Vista? The app in question is compiled for x86... Would I be better off using WMI to return the name of the default printer? I''ve tried to find a solution in Google and MSDN, but haven''t had much luck... Any assistance gratefully received. -- www.markraeWorks for me on Vista 64 and 32 bit. What happens if you make "Microsoft XPS Document Writer" the default printer? Willy.
"Willy Denoyette [MVP]" <wi*************@telenet.bewrote in message news:%2****************@TK2MSFTNGP06.phx.gbl... "Mark Rae" <ma**@markNOSPAMraewrote in message news:u5**************@TK2MSFTNGP04.phx.gbl... >Hi,I have used the code below to return the default printer in 32-bit WinXPPro, but now that I am running 64-bit Vista Business I''m getting anerror:using System.Drawing.Printing;using (PrintDocument objPrintDocument = new PrintDocument()){ string strDefaultPrinter =objPrintDocument.PrinterSettings.PrinterName;}The error message is: "No printers are installed." and which seems tocome from a method called HdevmodeInternalHowever, I have several printers installed, and the default printer is anold HP LaserJet 5.Does the above code not work on 64-bit Vista? The app in question iscompiled for x86...Would I be better off using WMI to return the name of the defaultprinter?I''ve tried to find a solution in Google and MSDN, but haven''t had muchluck...Any assistance gratefully received. --www.markraeWorks for me on Vista 64 and 32 bit. What happens if you make "Microsoft XPS Document Writer" the default printer?
Same thing... Incidentally, it works for me on 32-bit Vista... Did you try it with a 32-bit app running on 64-bit Vista...? Also, when I try to query objPrintDocument.PrinterSettings.PrinterName, it returns "Default printer is not set.", though it definitely is... The Exception generated still doesn''t have any value for InnerException, and the <Exception>.TargetSite.Name is "HdevmodeInternal" - I can''t even find that anywhere in Google! -- www.markrae
"Mark Rae" <ma**@markNOSPAMraewrote in message news:u4**************@TK2MSFTNGP04.phx.gbl... "Willy Denoyette [MVP]" <wi*************@telenet.bewrote in message news:%2****************@TK2MSFTNGP06.phx.gbl... >"Mark Rae" <ma**@markNOSPAMraewrote in messagenews:u5**************@TK2MSFTNGP04.phx.gbl... >>Hi,I have used the code below to return the default printer in 32-bit WinXPPro, but now that I am running 64-bit Vista Business I''m getting anerror:using System.Drawing.Printing;using (PrintDocument objPrintDocument = new PrintDocument()){ string strDefaultPrinter =objPrintDocument.PrinterSettings.PrinterName;}The error message is: "No printers are installed." and which seems tocome from a method called HdevmodeInternalHowever, I have several printers installed, and the default printer isan old HP LaserJet 5.Does the above code not work on 64-bit Vista? The app in question iscompiled for x86...Would I be better off using WMI to return the name of the defaultprinter?I''ve tried to find a solution in Google and MSDN, but haven''t had muchluck...Any assistance gratefully received. --www.markraeWorks for me on Vista 64 and 32 bit. What happens if you make "MicrosoftXPS Document Writer" the default printer?
Same thing... Incidentally, it works for me on 32-bit Vista... Did you try it with a 32-bit app running on 64-bit Vista...?
Yep, both X86 and X64 flavors work on 64-bit Vista Ultimate. Note that I''m allways adding an application manifest to my executable assemblies. If you don''t add a manifest to an application that runs under wow64, this application will get a virtualized view of the registry (part off) and the file system (part off). To prevent virtualization you have to add a manifest like this: <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0"> <assemblyIdentity version="1.0.0.0" name="MyApplication.app"></assemblyIdentity> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2"> <security> <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3"> <requestedExecutionLevel level="asInvoker"></requestedExecutionLevel> </requestedPrivileges> </security> </trustInfo> </assembly> save above contents in a file named "MyApplication.manifest", where "MyApplication" is the name of the assembly (not absolutely required any name will do as manifest filename). When done, run the following command: mt -manifest MyApplication.manifest -outputresource:MyApplication.exe;#1 mt.exe is part of VS2005. I''m not sure this will be of any help, but it''s worth a try. Willy.
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