Windows 检测设备(打印机、扫描仪、鼠标等)是否不工作
如果打印机有问题,Windows的设备管理器会在有问题的打印机旁边显示一个特殊图标 我使用的是Delphi XE2,我想知道如何在Windows XP或更高版本中以编程方式检测此类信息Windows 检测设备(打印机、扫描仪、鼠标等)是否不工作,windows,delphi,winapi,delphi-xe2,Windows,Delphi,Winapi,Delphi Xe2,如果打印机有问题,Windows的设备管理器会在有问题的打印机旁边显示一个特殊图标 我使用的是Delphi XE2,我想知道如何在Windows XP或更高版本中以编程方式检测此类信息 function DetectDriversProblems() : TStringList; begin // Scan Computer or query Windows to know if a driver has issues and // return list of faulty h
function DetectDriversProblems() : TStringList;
begin
// Scan Computer or query Windows to know if a driver has issues and
// return list of faulty hardware (if any)
end;
您可以使用WMI类和ConfigManagerErrorCode属性
{$APPTYPE CONSOLE}
uses
SysUtils,
ActiveX,
ComObj,
Variants;
Procedure ListDevicesConfigError;
const
wbemFlagForwardOnly = $00000020;
var
FSWbemLocator : OLEVariant;
FWMIService : OLEVariant;
FWbemObjectSet: OLEVariant;
FWbemObject : OLEVariant;
oEnum : IEnumvariant;
iValue : LongWord;
begin;
FSWbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
FWMIService := FSWbemLocator.ConnectServer('localhost', 'root\cimv2', '', '');
FWbemObjectSet:= FWMIService.ExecQuery('SELECT * FROM Win32_PnPEntity WHERE ConfigManagerErrorCode <> 0','WQL',wbemFlagForwardOnly);
oEnum := IUnknown(FWbemObjectSet._NewEnum) as IEnumVariant;
while oEnum.Next(1, FWbemObject, iValue) = 0 do
begin
Writeln(Format('Class GUID %s',[String(FWbemObject.ClassGUID)]));
Writeln(Format('Description %s',[String(FWbemObject.Description)]));
Writeln(Format('Device ID %s',[String(FWbemObject.DeviceID)]));
Writeln(Format('Manufacturer %s',[String(FWbemObject.Manufacturer)]));
Writeln(Format('Name %s',[String(FWbemObject.Name)]));
Writeln(Format('PNP Device ID %s',[String(FWbemObject.PNPDeviceID)]));
Writeln('');
FWbemObject:=Unassigned;
end;
end;
begin
try
CoInitialize(nil);
try
ListDevicesConfigError;
finally
CoUninitialize;
end;
except
on E:EOleException do
Writeln(Format('EOleException %s %x', [E.Message,E.ErrorCode]));
on E:Exception do
Writeln(E.Classname, ':', E.Message);
end;
Writeln('Press Enter to exit');
Readln;
end.
您可以使用WMI类和ConfigManagerErrorCode属性
{$APPTYPE CONSOLE}
uses
SysUtils,
ActiveX,
ComObj,
Variants;
Procedure ListDevicesConfigError;
const
wbemFlagForwardOnly = $00000020;
var
FSWbemLocator : OLEVariant;
FWMIService : OLEVariant;
FWbemObjectSet: OLEVariant;
FWbemObject : OLEVariant;
oEnum : IEnumvariant;
iValue : LongWord;
begin;
FSWbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
FWMIService := FSWbemLocator.ConnectServer('localhost', 'root\cimv2', '', '');
FWbemObjectSet:= FWMIService.ExecQuery('SELECT * FROM Win32_PnPEntity WHERE ConfigManagerErrorCode <> 0','WQL',wbemFlagForwardOnly);
oEnum := IUnknown(FWbemObjectSet._NewEnum) as IEnumVariant;
while oEnum.Next(1, FWbemObject, iValue) = 0 do
begin
Writeln(Format('Class GUID %s',[String(FWbemObject.ClassGUID)]));
Writeln(Format('Description %s',[String(FWbemObject.Description)]));
Writeln(Format('Device ID %s',[String(FWbemObject.DeviceID)]));
Writeln(Format('Manufacturer %s',[String(FWbemObject.Manufacturer)]));
Writeln(Format('Name %s',[String(FWbemObject.Name)]));
Writeln(Format('PNP Device ID %s',[String(FWbemObject.PNPDeviceID)]));
Writeln('');
FWbemObject:=Unassigned;
end;
end;
begin
try
CoInitialize(nil);
try
ListDevicesConfigError;
finally
CoUninitialize;
end;
except
on E:EOleException do
Writeln(Format('EOleException %s %x', [E.Message,E.ErrorCode]));
on E:Exception do
Writeln(E.Classname, ':', E.Message);
end;
Writeln('Press Enter to exit');
Readln;
end.