看 MSDN :The WM_SHOWWINDOW message is sent to a window when the window is about to be hidden or shown. A window receives this message through its WindowProc function. LRESULT CALLBACK WindowProc(
HWND hwnd, // handle to window
UINT uMsg, // WM_SHOWWINDOW
WPARAM wParam, // show flag (BOOL)
LPARAM lParam // status flag
);
不管是隐藏还是显示,都是发送 WM_SHOWWINDOW 消息! 隐藏/显示 是由后面的一个参数wParam控制!!
HWND hwnd, // handle to window
UINT uMsg, // WM_SHOWWINDOW
WPARAM wParam, // show flag (BOOL)
LPARAM lParam // status flag
);
不管是隐藏还是显示,都是发送 WM_SHOWWINDOW 消息! 隐藏/显示 是由后面的一个参数wParam控制!!
WM_SHOWWINDOW参数
wParam 显示/隐藏
lParam 状态标志