invalidation

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Problem with invalidation of STL iterators when calling erase

The STL standard d开发者_如何学Goefines that when an erase occurs on containers such as std::deque, std::list etc iterators are invalidated.[详细]

2023-01-28 11:07 分类：问答
how to set iphone app valid for a year?

I want my app to be invalidated 1 year after the first installation. I am using a webse开发者_如何学Pythonrvice for storing device id for apns and thought about storing the first install date with it.[详细]

2023-01-22 16:27 分类：问答
Delphi 6 - Bitmap only updates when owner window requires a repaint when using the Graphics32 library

I have an application that creates 3D motion on a TPaintBox Canvas using native Delphi code.In the old code I rendered the 3D image to a temporary TBitmap on a Timer event.In the TPaintBox OnPaint() e[详细]

2023-01-19 14:44 分类：问答
Invalidating an NSTimer?

If I have an NSTimer that starts in viewdidload, where is the proper 开发者_运维技巧place to invalidate it when leaving that view?Is it also necessary to release it as well?If you create a timer with[详细]

2023-01-11 16:36 分类：问答
What does container invalidation in C++ mean?

I learned today about the term invalidation in co开发者_运维问答ntext of C++ containers. Can anyone explain what it means?[详细]

2023-01-08 21:10 分类：问答
How to properly invalidate an NSTimer

I\'ve got an iPhone app with an NSTimer called pressTimer that goes off every time someone touches this button. The problem is they touch the button a lot, and I want the timer to stop when they lift[详细]

2023-01-05 05:47 分类：问答
Android: How to get a custom view to redraw partially?

I have a custom view that fills my entire screen. (A piano keyboard) When a user touches the key, it causes invalidate() to be called and the whole keyboard gets redrawn to show the new state with a t[详细]

2023-01-02 08:24 分类：问答
WPF calls not working during long method processing

The following method does not apply the wpf changes (background = red) until the 2nd method (DoWork) exits:[详细]

2022-12-26 12:13 分类：问答
Update existing Preference-item in a PreferenceActivity upon returning from a (sub)PreferenceScreen

I have a PreferenceActivity with a bunch of (Sub)PreferenceScreens. Each such (Sub)PreferenceScreen represents an account and has the account-username as its title.[详细]

2022-12-26 08:07 分类：问答
Onpaint events (invalidated) changing execution order after a period normal operation (runtime)

I have 3 data graphs that are painted via the their paint events. When I have data that I need to insert into the graph I call the controls invalidate() command.[详细]

2022-12-26 03:26 分类：问答