如何在非托管类中将Tick事件添加到System::windows::Forms::Timer

Question

我试着像我在一些例子中发现的那样做:

TimerID = gcnew System::Windows::Forms::Timer(); 
TimerID->Tick += gcnew System::EventHandler(this, &Bridge::timer1_Tick);

和

System::Void Bridge::timer1_Tick(System::Object^  sender, System::EventArgs^  e) 
{
    Bridge::DoUpdate();
}

但无法创建事件处理程序，因为错误:

错误C3364: 'System::EventHandler':委托的无效参数构造函数;委托目标需要是指向成员的指针函数

桥是非托管类。我这样声明TimerID

gcroot<System::Windows::Forms::Timer ^> TimerID;

我在这里做错了什么?如何正确添加Tick事件

Answer 1

您没有发布足够的代码来诊断错误。这个编译:

public ref class Bridge : public System::Windows::Forms::Form
{
    Timer^ TimerID;
public:
    Bridge(void) {
        InitializeComponent();
        TimerID = gcnew System::Windows::Forms::Timer(); 
        TimerID->Tick += gcnew System::EventHandler(this, &Bridge::timer1_Tick);        
    }
private:
    void Bridge::timer1_Tick(System::Object^  sender, System::EventArgs^  e) {
    }
    void InitializeComponent(void) {
        // etc...
    }
};