1.wchar_t数据型态与无符号短整数型态相同，都是16位宽,相当与char的用法,wchar_t c = 'A' ;
2.wcslen 和strlen用法相当
3.#ifdef UNICODE
typedef WCHAR TCHAR, * PTCHAR ;
typedef LPWSTR LPTCH, PTCH, PTSTR, LPTSTR ;
typedef LPCWSTR LPCTSTR ;
#else
typedef char TCHAR, * PTCHAR ;
typedef LPSTR LPTCH, PTCH, PTSTR, LPTSTR ;
typedef LPCSTR LPCTSTR ;
#endif
4.
Windows函数呼叫int WINAPI MessageBox (HWND, LPCSTR, LPCSTR, UINT) ;
注意，函数的第二个、第三个参数是指向常数字符串的指针
5.
Windows的字符串函数ILength = lstrlen (pString) ;
pString = lstrcpy (pString1, pString2) ;
pString = lstrcpyn (pString1, pString2, iCount) ;
pString = lstrcat (pString1, pString2) ;
iComp = lstrcmp (pString1, pString2) ;
iComp = lstrcmpi (pString1, pString2) ;
6.
在Windows中使用printfchar szBuffer [100] ;
sprintf (szBuffer, "The sum of %i and %i is %i", 5, 3, 5+3) ;
puts (szBuffer)
|
ASCII
|
宽字符
|
常规
|
|
参数的变数个数
|
|
|
|
|
标准版
|
sprintf
|
swprintf
|
_stprintf
|
|
最大长度版
|
_snprintf
|
_snwprintf
|
_sntprintf
|
|
Windows版
|
wsprintfA
|
wsprintfW
|
wsprintf
|
|
参数数组的指针
|
|
|
|
|
标准版
|
vsprintf
|
vswprintf
|
_vstprintf
|
|
最大长度版
|
_vsnprintf
|
_vsnwprintf
|
_vsntprintf
|
|
Windows版
|
wvsprintfA
|
wvsprintfW
|
wvsprintf
|
格式化消息框程序2-1 SCRNSIZE
SCRNSIZE.C
/*---------------------------------------------------------------------------
SCRNSIZE.C -- Displays screen size in a message box
(c) Charles Petzold, 1998
----------------------------------------------------------------------------*/
#include <windows.h>
#include <tchar.h>
#include <stdio.h>
int CDECL MessageBoxPrintf (TCHAR * szCaption, TCHAR * szFormat, ...)
{
TCHAR szBuffer [1024] ;
va_list pArgList ;
// The va_start macro (defined in STDARG.H) is usually equivalent to:
// pArgList = (char *) &szFormat + sizeof (szFormat) ;
va_start (pArgList, szFormat) ;
// The last argument to wvsprintf points to the arguments
_vsntprintf ( szBuffer, sizeof (szBuffer) / sizeof (TCHAR),
szFormat, pArgList) ;
// The va_end macro just zeroes out pArgList for no good reason
va_end (pArgList) ;
return MessageBox (NULL, szBuffer, szCaption, 0) ;
}
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
int cxScreen, cyScreen ;
cxScreen = GetSystemMetrics (SM_CXSCREEN) ;
cyScreen = GetSystemMetrics (SM_CYSCREEN) ;
MessageBoxPrintf ( TEXT ("ScrnSize"),
TEXT ("The screen is %i pixels wide by %i pixels high."),
cxScreen, cyScreen) ;
return 0 ;
}