IdNotify:如何将参数传递给函数 [英] IdNotify : How to pass parameteres to function
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问题描述
经过长时间的努力后,我安装了带有lazarus的代码台风,我设法将IdSync单元添加到我的项目中.
I have code typhoon with lazarus installed after a long strugle I have managed to include the unit IdSync to my project.
如何从TIdNotify将参数传递给要在主线程中执行的函数?
How can I pass parameteres to a function that I want to execute in the main thread from TIdNotify ?
推荐答案
您必须重写TIdNotify.DoNotify()方法,然后才能传递所需的任何参数,例如:
You have to override the TIdNotify.DoNotify() method, then you can pass whatever parameters you want, eg:
type
TMyNotify = class(TIdNotify)
protected
procedure DoNotify; override;
end;
procedure TMyNotify.DoNotify;
begin
SomeFunction(parameters);
end;
.
begin
...
TMyNotify.Create.Notify;
...
end;
大概,您希望调用线程指定参数值,因此只需使其成为类的成员即可,例如:
Presumably, you want the calling thread to specify the parameter values, so just make them members of the class, eg:
type
TMyNotify = class(TIdNotify)
protected
Param1: SomeType;
Param2: SomeType;
Param3: SomeType;
procedure DoNotify; override;
end;
procedure TMyNotify.DoNotify;
begin
SomeFunction(Param1, Param2, Param2);
end;
.
begin
...
with TMyNotify.Create do
begin
Param1 := ...;
Param2 := ...;
Param3 := ...
Notify;
end;
...
end;
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