如何侦测窗口风格改变？

[allenhiman]

一些特殊的需求 我需要知道一个窗口在什么时候被改变了风格。
是有什么消息吗? 这个窗口一开始是popup类型的，过了一会后变成childwindow了 我怎么知道它什么时候改变了这个风格呢？

[hurryboylqs]

响应WM_STYLECHANGED

[schlafenhamster]

WM_STYLECHANGED The WM_STYLECHANGED message is sent to a window after the SetWindowLong function has changed one or more of the window's styles. WM_STYLECHANGED wStyleType = wParam; // windows styles or extended styles lpss = (LPSTYLESTRUCT) lParam; // structure containing new styles Parameters wStyleType Value of wParam. Specifies whether the window's styles or extended styles have changed. This parameter can be a combination of the following values: Value Meaning GWL_EXSTYLE The window's extended styles have changed. GWL_STYLE The window's styles have changed. lpss Value of lParam. Pointer to a STYLESTRUCT structure that contains the new styles for the window. An application can examine the styles, but can not change them. Return Values An application should return zero if it processes this message.

[schlafenhamster]

void CxxxxDlg::OnBtStyle() { // TODO: Add your control notification handler code here LONG style=GetWindowLong(m_hWnd,GWL_STYLE); if(style | WS_POPUP) { AfxMessageBox("WS_POPUP"); } else { AfxMessageBox("WS_CHILD"); } }

[schlafenhamster]

Sorry, 写错了！ if(style & WS_POPUP) { AfxMessageBox("WS_POPUP"); } else if(style & WS_CHILD) { AfxMessageBox("WS_CHILD"); }

[赵4老师]

Hook SetWindowLong ？

[allenhiman]

okay 那应该是WM_STYLECHANGED的吧 不过由于需求改变了 我就不实验了