MyProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
...{
if(msg == WM_RBUTTONDOWN) // 屏蔽右键
return 0;
return CallWindowProc((WNDPROC)oldWndProc, hwnd, msg, wParam, lParam);
}

我想修改一个控件的过程函数,但调用CallWindowProc出现问题

cannot convert from '' to 'long (__stdcall *)(struct HWND__ *,unsigned int,unsigned int,long)'
以上是编译问题 如何解决啊?

看看 CallWindowProc参数的说明
lpPrevWndFunc

[in] Long pointer to the previous window procedure.

If this value is obtained by calling the GetWindowLong function with the nIndex parameter set to GWL_WNDPROC or DWL_DLGPROC, it is actually either the address of a window or dialog box procedure, or a handle representing that address.

oldWndProc 我定义的是整形long,是 setwindowlong()的返回值 这样有错么 ?  我还是不明白啊