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MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
...LE, WS_EX_CONTROLPARENT);
RECT rect;
m_tabsheet.GetWindowRect(&rect);
int width = rect.right - rect.left;
int height = rect.bottom - rect.top;
//调整属性页的大小和位置
m_tabsheet.SetWindowPos(NULL, 225, 225, width-82, height,SWP_NOACTIVATE);
//属性页的添加完成。如...
Array to Hash Ruby
... @tester, the * is called the splat operator. It takes an array and converts it a literal list of items. So *[1,2,3,4] => 1, 2, 3, 4. In this example, the above is equivalent to doing Hash["item 1", "item 2", "item 3", "item 4"]. And Hash has a [] method that accepts a list of arguments (m...
How do you round a floating point number in Perl?
How can I round a decimal number (floating point) to the nearest integer?
13 Answers
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How to check type of variable in Java?
How can I check to make sure my variable is an int, array, double, etc...?
13 Answers
...
Does const mean thread-safe in C++11?
...onst objects to be thread-safe. This means that the Standard Library won't introduce a data race as long as operations on const objects of your own types either
Consist entirely of reads --that is, there are no writes--; or
Internally synchronizes writes.
If this expectation does not hold for one ...
Passing a method as a parameter in Ruby
...ng. It's worth noting that you call method( :<name> ) just once when converting your method name to a callable symbol. You can store that result in a variable or a parameter and keep passing it to child functions like any other variable from then on...
– user1115652
...
CListCtrl 如何设置单元格颜色？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...ColListCtrl.InitCtrl(&Head, &Cols);
//添加数据
CString Linetitle;
int pos=0;
for (int x=0; x<10;x++)
{
Head.RemoveAll();
Linetitle.Format("Line %d",x);
Head.Add(Linetitle);
Linetitle.Format("SubLine %d-1",x);
Head.Add(Linetitle);
Linetitle.Format("SubLine %d-2",x);
Head.Add(...
CListCtrl 行高设置，自定义行高 - C/C++ - 清泛网 - 专注C/C++及内核技术
...tem(LPMEASUREITEMSTRUCT lpMeasureItemStruct);
virtual void OnMeasureItem(int nIDCtl, LPMEASUREITEMSTRUCT lpMeasureItemStruct);
virtual void DrawItem(LPDRAWITEMSTRUCT lpMeasureItemStruct);
public:
void SetRowHeigt(int nHeight);
private:
int m_nRowHeight;
};
MyListCtrl.cpp：
#inc...
c/c++ volatile和mutable关键字 - C/C++ - 清泛网 - 专注C/C++及内核技术
...olatile 吗？解释为什么。
3); 下面的函数有什么错误：
int square(volatile int *ptr)
{
return *ptr * *ptr;
}
下面是答案：
1)是的。一个例子是只读的状态寄存器。它是volatile因为它可能被意想不到地改变。它是const因为程序不应该...
shared_ptr指针被赋值后，原指针会引用清零、自动释放。 - C/C++ - 清泛IT...
...赋值后，原指针会引用清零、自动释放。
std::shared_ptr<int> intg;
void foo(std::shared_ptr<int> p)
{
intg = p; // 原指针释放，存储新的智能指针
//*(intg.get()) = *(p.get...