窗体透明效果

示例代码：

void CModifylayerDlg::OnChange() { HWND hWindow=NULL; hWindow=::FindWindow(NULL,”扫雷”); typedef BOOL (WINAPI *lpfn)(HWND hWnd,COLORREF cr,BYTE bAlpha,DWORD dwFlags); lpfn g_pSetLayeredWindowAttributes; HMODULE hUser32 = GetModuleHandle(_T(“USER32.DLL”)); g_pSetLayeredWindowAttributes = (lpfn)GetProcAddress(hUser32,”SetLayeredWindowAttributes”); ::SetWindowLong(hWindow,GWL_EXSTYLE,GetWindowLong(hWindow,GWL_EXSTYLE)^WS_EX_LAYERED); g_pSetLayeredWindowAttributes(hWindow,5,50,2); ::RedrawWindow(hWindow, NULL, NULL,RDW_ERASE | RDW_INVALIDATE | RDW_FRAME | RDW_ALLCHILDREN); }