GetProfileInt问题

wlm99111

GetProfileInt问题 [复制链接]

void CMyTracker::Construct()
{
AfxLockGlobals(CRIT_RECTTRACKER);
static BOOL bInitialized;
if (!bInitialized)
{
// sanity checks for assumptions we make in the code
ASSERT(sizeof(((RECT*)NULL)->left) == sizeof(int));
ASSERT(offsetof(RECT, top) > offsetof(RECT, left));
ASSERT(offsetof(RECT, right) > offsetof(RECT, top));
ASSERT(offsetof(RECT, bottom) > offsetof(RECT, right));

if (_afxHatchBrush == NULL)
{
// create the hatch pattern + bitmap
WORD hatchPattern[8];
WORD wPattern = 0x1111;
for (int i = 0; i < 4; i++)
{
hatchPattern = wPattern;
hatchPattern[i+4] = wPattern;
wPattern <<= 1;
}
HBITMAP hatchBitmap = CreateBitmap(8, 8, 1, 1, &hatchPattern);
if (hatchBitmap == NULL)
{
AfxUnlockGlobals(CRIT_RECTTRACKER);
AfxThrowResourceException();
}

// create black hatched brush
_afxHatchBrush = CreatePatternBrush(hatchBitmap);
DeleteObject(hatchBitmap);
if (_afxHatchBrush == NULL)
{
AfxUnlockGlobals(CRIT_RECTTRACKER);
AfxThrowResourceException();
}
}
                  //CreatePen for DottedLine and SolidLine
CreatePen();

// Note: all track cursors must live in same module
HINSTANCE hInst = AfxFindResourceHandle(
MAKEINTRESOURCE(AFX_IDC_TRACK4WAY), RT_GROUP_CURSOR);

// initialize the cursor array
_afxCursors[0] = ::LoadCursor(hInst, MAKEINTRESOURCE(AFX_IDC_TRACKNWSE));
_afxCursors[1] = ::LoadCursor(hInst, MAKEINTRESOURCE(AFX_IDC_TRACKNESW));
_afxCursors[2] = _afxCursors[0];
_afxCursors[3] = _afxCursors[1];
_afxCursors[4] = ::LoadCursor(hInst, MAKEINTRESOURCE(AFX_IDC_TRACKNS));
_afxCursors[5] = ::LoadCursor(hInst, MAKEINTRESOURCE(AFX_IDC_TRACKWE));
_afxCursors[6] = _afxCursors[4];
_afxCursors[7] = _afxCursors[5];
_afxCursors[8] = ::LoadCursor(hInst, MAKEINTRESOURCE(AFX_IDC_TRACK4WAY));
_afxCursors[9] = ::LoadCursor(hInst, MAKEINTRESOURCE(AFX_IDC_MOVE4WAY));

// get default handle size from Windows profile setting
static const TCHAR szWindows[] = _T("windows");
static const TCHAR szInplaceBorderWidth[] =
_T("oleinplaceborderwidth");
_afxHandleSize = GetProfileInt(szWindows, szInplaceBorderWidth, 4);

bInitialized = TRUE;
}
AfxUnlockGlobals(CRIT_RECTTRACKER);

m_nStyle = 0;
m_nHandleSize = _afxHandleSize;
m_sizeMin.cy = m_sizeMin.cx = m_nHandleSize*2;

m_rectLast.SetRectEmpty();
m_sizeLast.cx = m_sizeLast.cy = 0;
m_bErase = FALSE;
m_bFinalErase =  FALSE;
}
这段是MFC基类CRectTracker中的一个函数，主要功能就是调整画的矩形框的大小，但是这里面的GetProfileInt函数看不懂，他是什么意思呢，我知道GetProfileInt函数就是从注册表里查询oleinplaceborderwidth的键值（即windows设置的ole边框宽度），如果没有查到，就用默认宽度是4。但是在这里面他是什么意思，干嘛用的呢？

flywing

另外我把
static const TCHAR szWindows[] = _T("windows");
static const TCHAR szInplaceBorderWidth[] =
_T("oleinplaceborderwidth");
_afxHandleSize = GetProfileInt(szWindows, szInplaceBorderWidth, 4);
代码注释掉发现，原来画矩形框时出现在上、下、左、右以及左上、右上、左下、右下的八个用于调整矩形大小的“点”没了，无法调整矩形框大小

这句代码和用于调整矩形框的几个点有什么作用呢？谢谢指教
在EVC下GetProfileInt的参数如何设置呢？