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CGRidCtrl控件 学习心得 - C/C++ - 清泛网 - 专注C/C++及内核技术
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函数申明：BOOL CGridCtrl::Create(const RECT& rect, CWnd* pParentWnd, UINT nID, DWORD dwStyle)
函数作用：创建控件
参数说明：
rect:控件位置信息
pParetWnd:父窗口指针
nID:为控件指定的ID,作为本次创建的控件对象的标识
dwSt...
When is assembly faster than C?
... the high part of 64 bit integer multiplication: A portable version using uint64_t for 32x32 => 64-bit multiplies fails to optimize on a 64-bit CPU, so you need intrinsics or __int128 for efficient code on 64-bit systems.
_umul128 on Windows 32 bits: MSVC doesn't always do a good job when multip...
How do I get the type of a variable?
...
case typeid(myClassB):
// handle that case
break;
case typeid(uint32_t):
// handle that case
break;
default:
// handle that case
}
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Parsing JSON using Json.net
... // parse the 32 bit hex into an integer codepoint
uint codePoint;
if (!(success = UInt32.TryParse(new string(json, index, 4), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out codePoint))) {
return "";
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How can mixed data types (int, float, char, etc) be stored in an array?
...tagged pointer
enum { is_int, is_double, is_char_p, is_char } type;
// ...
uintptr_t addr = (uintptr_t)tp & ~0x03; // clear the 2 low bits in the pointer
switch ((uintptr_t)tp & 0x03) // check the tag (2 low bits) for the type
{
case is_int: // data is int
printf("%d\n", *((...
How can one print a size_t variable portably using the printf family?
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Or: you could cast to a uint64_t and then use the PRIu64 macro from inttypes.h, which contains the format specifier.
– James Ko
Sep 2 '16 at 16:50
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How to print (using cout) a number in binary form?
...et<sizeof(T) * 8>(x);
return ss.str();
}
Usage:
int main(){
uint16_t x=8;
std::cout << toBinaryString(x);
}
This works with all kind of integers.
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Fast Bitmap Blur For Android SDK
...oid_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
typedef struct {
uint8_t red;
uint8_t green;
uint8_t blue;
uint8_t alpha;
} rgba;
JNIEXPORT void JNICALL Java_com_insert_your_package_ClassName_functionToBlur(JNIEnv* env, jobject obj, jobject bitmapIn, jobject bitmapOut, jint ra...
How to hide close button in WPF window?
...ort("user32.dll")]
private static extern bool EnableMenuItem(IntPtr hMenu, uint uIDEnableItem, uint uEnable);
private const uint MF_BYCOMMAND = 0x00000000;
private const uint MF_GRAYED = 0x00000001;
private const uint SC_CLOSE = 0xF060;
private const int WM_SHOWWINDOW = 0x00000018;
private const ...
What is the best way to stop people hacking the PHP-based highscore table of a Flash game
... var scores:String = addLeadingZeros(_s);
for(var i:uint = 0; i< scores.length; i++){
//trace( scores.charAt(i) + " - > " + charsTable[ scores.charAt(i) ] );
_fin += charsTable[ scores.charAt(i) ];
}
return _fin;
...