为什么我在NT Service中使用FindWindow, FindWindowEx系统函数老是失败~~~

[taoyi]

我需要在C# NT Service中使用FindWindow, FindWindowEx系统获取特定窗口的句柄,但总是失败.而相同的代码放到Console Application和Window Application中都可以正常取得,这是为什么??

难道NT Service中不允许使用FindWindow,FindWindowEx函数,我试过GetDesktopWindow,是可以正常获得桌面句柄的.

高人们帮忙解决问题啊~~~,偶郁闷死了,原以来一挺简单的东西,结果搞得一头雾水~~

对了,失败后我用GetLastError函数取得的错误代码为126(找不到模块),更让偶摸不着头脑,郁闷~~~

[dongweicq]

按照常理是不可能的,首先要Dllinport那个函数所在的DLL

[taoyi]

楼上的啥意思呢?能否说明白点~~


按照常理是不可能的,是啥意思?

[taoyi]

郁闷~~~,发现用PostMessage发送广播消息都不行~~
PostMessage(HWND_BROADCAST, WM_CLOSE, 0,0);
得到的错误代码为127(找不到指定的程序)


郁闷啦,,,救偶啊~~~

[yizhixiaozhu]

up

[singleflower]

关注

[habao]

服务-〉属性-〉登陆-〉打开允许服务与桌面交互选项 即可

[habao]

给你段代码 ， 在安装服务的时候即打开该选项：
using System.Management;
private void ProjectInstaller_AfterInstall(object sender, System.Configuration.Install.InstallEventArgs e)
{
ConnectionOptions coOptions = new ConnectionOptions();
coOptions.Impersonation = ImpersonationLevel.Impersonate;
ManagementScope mgmtScope = new System.Management.ManagementScope(@"root\CIMV2",coOptions);
mgmtScope.Connect();

ManagementObject wmiService;
wmiService = new ManagementObject("Win32_Service.Name='" + serviceInstaller1.ServiceName + "'");
ManagementBaseObject InParam = wmiService.GetMethodParameters("Change");
InParam["DesktopInteract"] = true;
ManagementBaseObject OutParam = wmiService.InvokeMethod("Change", InParam, null);
}

[心情解码]

用try 试试

[taoyi]

好啊~~,谢谢habao(哈宝)