Re: [語法] winapi 關於CreateWindow

看板C_and_CPP (C/C++)作者LPH66 ((short)(-15074))時間16年前 (2009/02/08 21:30)推噓1(1推 0噓 0→)

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※ 引述《tyc5116 (累人啊....)》之銘言： : 如下 : for (i = 0; i < dim(szCtlWnds); i++) { : hwndChild = CreateWindowEx (WS_EX_CLIENTEDGE, szCtlWnds[i], : TEXT (""), WS_CHILD, 0, 0, 200, 200, hWnd, : (HMENU)(IDC_WNDSEL+i), hInst, NULL); : // Destroy frame if client window not created. : if (!IsWindow (hwndChild)) { : DestroyWindow (hWnd); : return 0; : } : } : 這是節錄書上所看到的語法,其中,(HMENU)(IDC_WNDSEL+i) : 也就是功能表的參數 : 在這段程式碼之前,他有先寫 : #define IDC_WNDSEL 5 : 小弟想知道的是,5這個代碼怎麼知道代表的是什麼 : 上msdn,但不知道要打什麼關鍵字才查的到....@@ : 煩請知道的版友說明一下,謝謝就直接找 CreateWindowEx 的說明即可 http://msdn.microsoft.com/en-us/library/ms632680(VS.85).aspx 第10個參數是 HMENU hMenu hMenu [in] Handle to a menu, or specifies a child-window identifier, depending on the window style. For an overlapped or pop-up window, hMenu identifies the menu to be used with the window; it can be NULL if the class menu is to be used. For a child window, hMenu specifies the child-window identifier, an integer value used by a dialog box control to notify its parent about events. The application determines the child-window identifier; it must be unique for all child windows with the same parent window. 回頭看它的 style 是 (第四個參數) WS_CHILD 即子視窗所以看上面的亮字就知道它是隨人訂的同父視窗中要唯一就是了只是這個視窗把訊息丟給父視窗(即這裡的呼叫者)時會用這個值告訴上面是我傳來的 -- 'Oh, Harry, dont't you see?' Hermione breathed. 'If she could have done one thing to make absolutely sure that every single person in this school will read your interview, it was banning it!' ---'Harry Potter and the order of the phoenix', P513 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.30.84