1个二进制位称为1个bit（位），8个二进制位称为1个Byte（字节），8 bit = 1 byte。2个字节就是1个Word（1个字，16位），DWORD（Double Word）就是双字的意思，两个字（32位）。 typedef unsigned long DWORD; 关于DWORD使用中重要的一点。DWORD 现在表示 32bit 无符号整数，即使以后 W...
BYTE An 8-bit integer that is not signed. COLORREF A 32-bit value used as a color value. DWORD A 32-bit unsigned integer or the address of a segment and its associated offset. LONG A 32-bit signed integer. LPARAM A 32-bit value passed as a parameter to a window procedure or callb...
BSTR A 32-bit character pointer. BYTE An 8-bit integer that is not signed. COLORREF A 32-bit value used as a color value. DWORD A 32-bit unsigned integer or the address of a segment and its associated offset. LONG A 32-bit signed integer. LPARAM A 32-bit value passed as a paramet...
DWORD A 32-bit unsigned integer or the address of a segment and its associated offset.LONG A 32-bit signed integer.LPARAM A 32-bit value passed as a parameter to a window procedure or callback function.LPCSTR A 32-bit pointer to a constant character string.LPSTR A 32-bit pointer to a ...
char is signed so that you get a sign extension when you read from the buffer. The array must be unsigned char.You could also use a DWORD array in the first place and use the _byteswap_ulong function to swap the bytes.Tuesday, April 7, 2009 12:03 PM | 1 vote...
I think that WORD and DWORD are unsigned numbers whereas INT and DINT are signed. I think it should be as follows: WORD from 0 to 65.535 INT form -32.768 to 32.767 DWORD from 0 to 4.294.967.295 DINT from -2.147.483.648 to 2.147.483.647 I...
strtoul returns the converted value, if any, or ULONG_MAX on overflowOn Windows, ULONG_MAX is hexadecimal 0xFFFFFFFF, which is -1 if viewed as a signed integer.As I told you, 20120827114308 is too big to fit in a 32-bit integer (either signed or unsigned). You need a 64-bit type...
本文介绍了如何通过JNI实现一个Hello world。首先介绍了在Java类中声明native方法，然后使用javah工具生成头...
DWORD A 32-bit unsigned integer or the address of a segment and its associated offset. LONG A 32-bit signed integer. LPARAM A 32-bit value passed as a parameter to a window procedure or callback function. LPCSTR A 32-bit pointer to a constant character string. LPSTR A 32-bit pointer ...
DWORD A 32-bit unsigned integer or the address of a segment and its associated offset. LONG A 32-bit signed integer. LPARAM A 32-bit value passed as a parameter to a window procedure or callback function. LPCSTR A 32-bit pointer to a constant character string. LPSTR A 32-bit pointer ...