这可能是一个简单的问题,但我甚至不确定要搜索哪个术语,所以必须询问。当程序被固定到开始菜单时,我希望它在悬停时有一个菜单。 我附上一个Windows PowerShell演示此功能并呈现任务列表的截图。
其他程序有时使用此功能列出最近打开的文件等等。我相信这是标准化的,有教程可以学习。请问有人可以指向一下教程,或者解释如何做到这一点吗?我希望使用的编程语言不太重要,但我精通Delphi、C++和C#。
在Windows 7中,您必须使用ICustomDestinationList.AddUserTasks
方法,它是任务栏扩展
的一部分。
尝试此示例控制台应用程序,运行代码并将应用程序的快捷方式移动到开始菜单。(这只是一个示例代码片段,请记得添加返回HResult
值的所有方法的检查)
program ProjectTasks;
{$APPTYPE CONSOLE}
{$R *.res}
uses
SysUtils,
ActiveX,
windows,
ComObj,
ShlObj,
PropSys,
ObjectArray;
const
PKEY_TITLE : TPropertyKey = ( fmtID : '{F29F85E0-4FF9-1068-AB91-08002B27B3D9}'; pID : 2);
procedure CreateTaskList;
var
LCustomDestinationList : ICustomDestinationList;
pcMaxSlots : Cardinal;
ppv : IObjectArray;
poa : IObjectCollection;
LTask : IShellLink;
LPropertyStore : IPropertyStore;
LTitle : TPropVariant;
LTaskBarList : ITaskBarList;
LTaskBarList3 : ITaskBarList3;
hr : HRESULT;
begin
LTaskBarList := CreateComObject(CLSID_TaskBarList) as ITaskBarList;
hr := LTaskBarList.QueryInterface(IID_ITaskBarList3, LTaskBarList3);
if hr <> S_OK then exit;
LCustomDestinationList := CreateComObject(CLSID_DestinationList) as ICustomDestinationList;
LCustomDestinationList.BeginList(pcMaxSlots, IID_IObjectArray, ppv);
poa := CreateComObject(CLSID_EnumerableObjectCollection) as IObjectCollection;
LTask := CreateComObject(CLSID_ShellLink) as IShellLink;
LTask.SetPath(pChar(ParamStr(0))); //set the path to the exe
LTask.SetDescription('This is a description sample');
LTask.SetArguments(PChar('Bar'));
LTask.SetIconLocation(PChar('Shell32.dll'),1);
LPropertyStore := LTask as IPropertyStore;
LTitle.vt := VT_LPWSTR;
LTitle.pwszVal := PChar('This is the Task 1');
LPropertyStore.SetValue(PKEY_Title,LTitle);
LPropertyStore.Commit;
poa.AddObject(LTask);
LTask := CreateComObject(CLSID_ShellLink) as IShellLink;
LTask.SetPath(PChar(ParamStr(0))); //set the path to the exe
LTask.SetDescription('This is a description sample');
LTask.SetArguments(PChar('Foo'));
LTask.SetIconLocation(pChar('Shell32.dll'),1);
LPropertyStore := LTask as IPropertyStore;
LTitle.vt := VT_LPWSTR;
LTitle.pwszVal := pChar('This is the Task 2');
LPropertyStore.SetValue(PKEY_Title,LTitle);
LPropertyStore.Commit;
poa.AddObject(LTask);
LCustomDestinationList.AddUserTasks(poa as IObjectArray);
LCustomDestinationList.CommitList;
end;
begin
try
CoInitialize(nil);
try
CreateTaskList;
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.