//@cmember Get the view rectangle relative to the inset
HRESULT tomEdit::TxGetViewInset(LPRECT prc)
{
//return E_NOTIMPL ;
// 这里的坐标单位是HIMETRIC(参msdn)
::SetRect(
prc,
DXtoHimetricX(m_view_inset.left, s_XPixelPerInch),
DXtoHimetricX(m_view_inset.top, s_YPixelPerInch),
DXtoHimetricX(m_view_inset.right, s_XPixelPerInch),
DXtoHimetricX(m_view_inset.bottom, s_YPixelPerInch)
) ;
return S_OK ;
}
void GetSysParms(void)
{
TRACEBEGIN(TRCSUBSYSHOST, TRCSCOPEINTERN, "GetSysParms");
crAuto = GetSysColor(COLOR_WINDOWTEXT);
cxBorder = GetSystemMetrics(SM_CXBORDER); // Unsizable window border
cyBorder = GetSystemMetrics(SM_CYBORDER); // widths
cxHScroll = GetSystemMetrics(SM_CXHSCROLL); // Scrollbar-arrow bitmap
cxVScroll = GetSystemMetrics(SM_CXVSCROLL); // dimensions
cyHScroll = GetSystemMetrics(SM_CYHSCROLL); //
cyVScroll = GetSystemMetrics(SM_CYVSCROLL); //
cxDoubleClk = GetSystemMetrics(SM_CXDOUBLECLK);
cyDoubleClk = GetSystemMetrics(SM_CYDOUBLECLK);
DCT = GetDoubleClickTime();
// Get system metrics (do this only once)
// CF - Ideally we should not need these stupid metrics
HWND hwnd = GetDesktopWindow();
HDC hdc = ::GetDC(hwnd);
HFONT hfontOld;
TEXTMETRIC tm;
xPerInchScreenDC = GetDeviceCaps(hdc, LOGPIXELSX);
yPerInchScreenDC = GetDeviceCaps(hdc, LOGPIXELSY);
int cPalette = GetDeviceCaps(hdc, SIZEPALETTE);
// 256 colors is where we seem to need to use the palette.
if (256 == cPalette)
{
fUsePalette = TRUE;
}
// calculate a himetric selection bar for the window's host.
dxSelBar = DXtoHimetricX(dxSelBarDefaultSize, xPerInchScreenDC);
hfontOld = (HFONT)SelectObject(hdc, GetStockObject(SYSTEM_FONT));
if(hfontOld)
{
GetTextMetrics(hdc, &tm);
CDisplay::_xWidthSys = (INT) tm.tmAveCharWidth;
CDisplay::_yHeightSys = (INT) tm.tmHeight;
SelectObject(hdc, hfontOld);
}
::ReleaseDC(hwnd, hdc);
}