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CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清泛网 - 专注C/C++及内核技术

...t of the cell. Input validation is done on the fly as the user is typing. All validation is done in the EN_UPDATE message handler, so any cut/copy and paste operations are immediately validated. If the user deletes the text in the cell, the value is set to zero. Using the CGridCellNumeri...
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Trying to understand CMTime and CMTimeMake

...llowing code makes the concept more clear: 1) Float64 seconds = 5; int32_t preferredTimeScale = 600; CMTime inTime = CMTimeMakeWithSeconds(seconds, preferredTimeScale); CMTimeShow(inTime); The above code gives: {3000/600 = 5.000} Which means a total duration of 5 seconds, with 3000 frames with...
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Detect the specific iPhone/iPod touch model [duplicate]

...on 4,4s,and 5, but it failed hard in production and didn't seem to work at all which caused lots of problems. – Dave Chenell May 7 '13 at 2:24  |  ...
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How can I programmatically determine if my app is running in the iphone simulator?

...er "Compiling source code conditionally" The relevant definition is TARGET_OS_SIMULATOR, which is defined in /usr/include/TargetConditionals.h within the iOS framework. On earlier versions of the toolchain, you had to write: #include "TargetConditionals.h" but this is no longer necessary on the ...
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Min/Max of dates in an array?

... _.min and _.max work on arrays of dates; use those if you're using Lodash or Underscore, and consider using Lodash (which provides many utility functions like these) if you're not already. For example, _.min([ new Date(...
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Why does Vim save files with a ~ extension?

... Actually - do I have to have both nobackup and nowritebackup? Is there a way to write a copy of the file as a backup, but not do this write/delete/rename stuff? – Merlyn Morgan-Graham Mar 2...
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Base 64 encode and decode example code

...Charsets: // Sending side byte[] data = text.getBytes(StandardCharsets.UTF_8); String base64 = Base64.encodeToString(data, Base64.DEFAULT); // Receiving side byte[] data = Base64.decode(base64, Base64.DEFAULT); String text = new String(data, StandardCharsets.UTF_8); ...
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Node.js Mongoose.js string to ObjectId function

...n it is saved from a string, mongo tells me it is still just a string. The _id of the object, for instance, is displayed as objectId("blah") . ...
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The input is not a valid Base-64 string as it contains a non-base 64 character

...nes. But is this a concrete solution ? i mean how can i guarantee that for all the files this will be the character to be replaced ? – Rohit Verma Feb 27 '13 at 14:52 ...
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Django: accessing session variables from within a template?

...ple are still finding it helpful, more than three years after it was originally written. Please note however, that although the view code above is still valid, nowadays there is a much simpler way of doing this. render() is a function very similar to render_to_response(), but it uses RequestContext ...