我參考了 http://www.parashift.com/c -faq-lite/pointers-to-members.html 及 http://delphi.ktop.com.tw/topic.php?topic_id=80238 但也不能解決問題,請各位幫幫忙,謝謝 .h class TAAA : public TForm { ..... public: void GrabGDBGPeriod(); void GrabBG(); }; typedef void (TAAA::*pfnGrabBG)(); .c ... pfnGrabBG fnGrabBG; .... void __fastcall TAAA::CaptureTimerTimer(TObject *Sender) { ... (*fnGrabBG)(); <----出現Illegal use of member pointer的錯誤 } ... void __fastcall TAAA::RadioButton8Click(TObject *Sender) { fnGrabBG=&TAAA::GrabGDBG; } //----------------------------------------------------------- void __fastcall TAAA::RadioButton9Click(TObject *Sender) { fnGrabBG=&TAAA::GrabGDBGPeriod; }

在呼叫的地方，改成這樣試看看！ TAAA taaa; (taaa.*fnGrabBG)();