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Question

Compiling...
ColorPickerCB.cpp
Linking...
ColorPickerCB.obj : error LNK2001: unresolved external symbol "private: static struct HICON__ * * CColorPickerCB::m_hIcon" (?m_hIcon@CColorPickerCB@@0PAPAUHICON__@@A)
Debug/class1_1.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.这是什么意思？？？

Answer 1

静态成员需要定义。在ColorPickerCB.cpp中添加：HICON CColorPickerCB::m_hIcon ;