vc中什么叫subclass?

maskii 2003-08-22 05:47:58

最近在网上经常看到有人说subclass, 请各位办忙解释一下！
谢谢！

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Paris_Luo 2003-10-14

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子类化

Darlinton 2003-10-14

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subclass就是拿你自己写的窗口过程替换指定窗口原来的窗口过程
subclass就是拿你自己写的窗口过程替换指定窗口原来的窗口过程
subclass就是拿你自己写的窗口过程替换指定窗口原来的窗口过程
subclass就是拿你自己写的窗口过程替换指定窗口原来的窗口过程
subclass就是拿你自己写的窗口过程替换指定窗口原来的窗口过程
subclass就是拿你自己写的窗口过程替换指定窗口原来的窗口过程
subclass就是拿你自己写的窗口过程替换指定窗口原来的窗口过程
subclass就是拿你自己写的窗口过程替换指定窗口原来的窗口过程
subclass就是拿你自己写的窗口过程替换指定窗口原来的窗口过程

ringphone 2003-10-14

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subclass说白了就是拿你自己写的窗口过程替换指定窗口原来的窗口过程。

icr_mio 2003-10-14

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上面是从MSDN的SetWindowLong函数中复制出来的：）

icr_mio 2003-10-14

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Calling SetWindowLong with the GWL_WNDPROC index creates a subclass of the window class used to create the window. An application can subclass a system class, but should not subclass a window class created by another process. The SetWindowLong function creates the window subclass by changing the window procedure associated with a particular window class, causing the system to call the new window procedure instead of the previous one. An application must pass any messages not processed by the new window procedure to the previous window procedure by calling CallWindowProc. This allows the application to create a chain of window procedures.

syh_17 2003-10-14