registerclass

ios 7 dequeueReusableCellWithIdentifier:forIndexPath method - does it need registerClass method

由 六月ゝ 毕业季﹏ 提交于 2019-12-23 12:09:30
问题 I am using ios 7. Quick question. I have a working program that uses dequeueReusableCellWithIdentifier:forIndexPath to display cells with two different prototypes. I never used the UITableView registerClass method. Does this mean that I am not reusing the cells? My thinking is that this is not the case (as I have fixed bugs before in this app which were related to cells retaining prior states). If I actually use registerClass now (in viewDidLoad for the tableVieW), my data is not being shown

Why is it necessary to RegisterClass in Windows API programming?

由 时光怂恿深爱的人放手 提交于 2019-12-18 13:32:43
问题 I would like to ask why, in developing Windows GUI's using the API, is it necessary to register a window class? What is the concept of it? I have already read the first 3 chapters of Programming Windows by Charles Petzold, but I still wonder what's the purpose of explicitly registering a class. Why would I want to do it explicitly? Why isn't it done in the background for instance in the CreateWindow() (or CreateWindowEx()) function? I mean, why isn't the code that RegisterClass() executes

Win32 API - RegisterClassEx errors

由 本小妞迷上赌 提交于 2019-12-12 19:21:24
问题 I'm trying to open a simple window through the Win32 API, using the VC++ compiler and in Visual Studio. I'd like to know why the class fails; I've tried allocating it without a pointer, along with allocating it as a pointer and sending it to the function as a reference. Yet, no matter what I try, the RegisterClassEx function refuses to return true. Why is this, and what can be done about it? From WinMain WNDCLASSEX* wc = new WNDCLASSEX; HWND hwnd; MSG msg; bool done; wc->style = CS_HREDRAW |

UITableView - registerClass with Swift

由 眉间皱痕 提交于 2019-12-04 09:50:10
问题 Is anyone else having an issue using the tableView.registerClass method with Swift? It no longer comes in code completion for me (nor can I use it if manually typed) but it is still in the headers... 回答1: It works for me perfectly. self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "cell") Exactly as I have it above. 回答2: For Swift 2.2 Register For Default Cell From Class self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "DefaultCell") For

BringWindowToTop is Not working even if I get the handle to Class Window

由 旧时模样 提交于 2019-12-02 04:05:03
问题 I am registering my Class in the following method: BOOL CNDSClientDlg::InitInstance() { //Register Window Updated on 16th Nov 2010, @Subhen // Register our unique class name that we wish to use WNDCLASS wndcls; memset(&wndcls, 0, sizeof(WNDCLASS)); wndcls.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW; wndcls.lpfnWndProc = ::DefWindowProc; wndcls.hInstance = AfxGetInstanceHandle(); wndcls.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); wndcls.lpszMenuName = NULL; //Class name for using FindWindow

Why is it necessary to RegisterClass in Windows API programming?

由 自闭症网瘾萝莉.ら 提交于 2019-11-30 09:45:15
I would like to ask why, in developing Windows GUI's using the API, is it necessary to register a window class? What is the concept of it? I have already read the first 3 chapters of Programming Windows by Charles Petzold, but I still wonder what's the purpose of explicitly registering a class. Why would I want to do it explicitly? Why isn't it done in the background for instance in the CreateWindow() (or CreateWindowEx()) function? I mean, why isn't the code that RegisterClass() executes inside CreateWindow(), or why doesn't CreateWindow() call the RegisterClass() itself? I have also been
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