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C++应用程序添加VBScript和JavaScript支持 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...C++程序中调用JavaScript及VBScript。效果截图：
源码点此下载。
Introduction
I am always amazed to see how the script control (msscript.ocx) is fun to use and at the same time how C++ developers reacted when it's time to use. Maybe the extension (.ocx) make them feel, it's vis...
Can I convert long to int?
... method GetHashCode() is a good choice:
int checkSumAsInt32 = checkSumAsIn64.GetHashCode();
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How do you determine the size of a file in C?
...32-bit systems you should compile this with the option -D_FILE_OFFSET_BITS=64, otherwise off_t will only hold values up to 2 GB. See the "Using LFS" section of Large File Support in Linux for details.
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Registry Key '…' has value '1.7', but '1.6' is required. Java 1.7 is Installed and the Registry is P
...s. Before the change over we had a JAR that was running fine on Java 1.7 x64 along with JRE 7. When we moved over to the new server our JAR was running alright, but then one of the server admins "updated" our Java to an older version and uninstalled the one we were using. Don't ask me why, I don'...
Position icons into circle
...img src="https://ssl.gstatic.com/s2/oz/images/faviconr2.ico" alt="" width="64" height="64">
<img src="https://ssl.gstatic.com/s2/oz/images/faviconr2.ico" alt="" width="64" height="64">
</div>
<div class="row">
<img src="https://ssl.gstatic.com/s2/oz/images/fav...
Adding a favicon to a static HTML page
...
Convert your image file to Base64 string with a tool like this and then replace the YourBase64StringHere placeholder in the below snippet with your string and put the line in your HTML head section:
<link href="data:image/x-icon;base64,YourBase64String...
How do I check OS with a preprocessor directive?
..., with links to where they're found:
Windows
_WIN32 Both 32 bit and 64 bit
_WIN64 64 bit only
Unix (Linux, *BSD, Mac OS X)
See this related question on some of the pitfalls of using this check.
unix
__unix
__unix__
Mac OS X
__APPLE__
__MACH__
Both are defined; checking for either s...
Which icon sizes should my Windows application's icon include?
...n detail. I created an icon whose images have sizes of 16, 24, 32, 40, 48, 64, 96, 128 and 256. Then I checked which image is shown. All these were done with normal 96dpi. If using a larger DPI, the larger sizes may be used (only checked this a bit in Windows 7). The results:
Windows XP:
Explorer v...
List of Delphi language features and version in which they were introduced/deprecated
...eculative)
Custom managed records
Nullable types
Support for macOS 64-bit
Support for Android 64-bit
Delphi 10.3
The 64-bit Linux compiler no longer uses ARC, it instead uses the default manual managed, which is the same as in the Windows compiler. This makes porting code from Windows or...
Is it safe to ignore the possibility of SHA collisions in practice?
...h is valid for "small" p, i.e. substantially smaller than 2n/2). For instance, with SHA-256 (n=256) and one billion messages (p=109) then the probability is about 4.3*10-60.
A mass-murderer space rock happens about once every 30 million years on average. This leads to a probability of such an event...