禁止关机
1.先打开头文件作如下修改：
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class TForm1 : public TForm { __published: // IDE-managed Components private: // User declarations void __fastcall WMQueryEndSession(TWMQueryEndSession &msg); public: // User declarations __fastcall TForm1(TComponent* Owner); BEGIN_MESSAGE_MAP MESSAGE_HANDLER(WM_QUERYENDSESSION,TWMQueryEndSession,WMQueryEndSession) END_MESSAGE_MAP(TForm) }; extern PACKAGE TForm1 *Form1; |
2.然后对unit.cpp文件添加如下代码：
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void __fastcall TForm1::WMQueryEndSession(TWMQueryEndSession &msg) { msg.Result = 0; ShowMessage("你不能关闭系统"); } |