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dopt 2005-10-26
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以前有人给出答案,搜一下,不过要弄懂认真点.
kugou123 2005-10-25
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U盘插上，会发送WM_DEVICECHANGE
The WM_DEVICECHANGE device message notifies an application of a change to the hardware configuration of a device or the computer.
A window receives this message through its WindowProc function.
LRESULT CALLBACK WindowProc(
HWND hwnd, // handle to window
UINT uMsg, // WM_DEVICECHANGE
WPARAM wParam, // device-change event
LPARAM lParam // event-specific data
);
The WM_DEVICECHANGE device message notifies an application of a change to the hardware configuration of a device or the computer.
A window receives this message through its WindowProc function.
LRESULT CALLBACK WindowProc(
HWND hwnd, // handle to window
UINT uMsg, // WM_DEVICECHANGE
WPARAM wParam, // device-change event
LPARAM lParam // event-specific data
);
