Beispiel #1
0
func newFontFromLOGFONT(lf *win.LOGFONT, dpi int) (*Font, error) {
	if lf == nil {
		return nil, newError("lf cannot be nil")
	}

	family := win.UTF16PtrToString(&lf.LfFaceName[0])
	pointSize := int(win.MulDiv(lf.LfHeight, 72, int32(dpi)))
	if pointSize < 0 {
		pointSize = -pointSize
	}

	var style FontStyle
	if lf.LfWeight > win.FW_NORMAL {
		style |= FontBold
	}
	if lf.LfItalic == win.TRUE {
		style |= FontItalic
	}
	if lf.LfUnderline == win.TRUE {
		style |= FontUnderline
	}
	if lf.LfStrikeOut == win.TRUE {
		style |= FontStrikeOut
	}

	return NewFont(family, pointSize, style)
}
Beispiel #2
0
func (tt *ToolTip) Text(tool Widget) string {
	ti := tt.toolInfo(tool)
	if ti == nil {
		return ""
	}

	return win.UTF16PtrToString(ti.LpszText)
}
Beispiel #3
0
// Text returns the current text data of the clipboard.
func (c *ClipboardService) Text() (text string, err error) {
	err = c.withOpenClipboard(func() error {
		hMem := win.HGLOBAL(win.GetClipboardData(win.CF_UNICODETEXT))
		if hMem == 0 {
			return lastError("GetClipboardData")
		}

		p := win.GlobalLock(hMem)
		if p == nil {
			return lastError("GlobalLock()")
		}
		defer win.GlobalUnlock(hMem)

		text = win.UTF16PtrToString((*uint16)(p))

		return nil
	})

	return
}
func (m *Win_PerfCounters) Gather(acc telegraf.Accumulator) error {
	metrics := itemList{}

	// Both values are empty in normal use.
	if m.TestName != testObject {
		// Cleanup any handles before emptying the global variable containing valid queries.
		m.CleanupTestMode()
		gItemList = make(map[int]*item)
		testObject = m.TestName
		testConfigParsed = true
		configParsed = false
	}

	// We only need to parse the config during the init, it uses the global variable after.
	if configParsed == false {

		err := m.ParseConfig(&metrics)
		if err != nil {
			return err
		}
	}

	var bufSize uint32
	var bufCount uint32
	var size uint32 = uint32(unsafe.Sizeof(win.PDH_FMT_COUNTERVALUE_ITEM_DOUBLE{}))
	var emptyBuf [1]win.PDH_FMT_COUNTERVALUE_ITEM_DOUBLE // need at least 1 addressable null ptr.

	// For iterate over the known metrics and get the samples.
	for _, metric := range gItemList {
		// collect
		ret := win.PdhCollectQueryData(metric.handle)
		if ret == win.ERROR_SUCCESS {
			ret = win.PdhGetFormattedCounterArrayDouble(metric.counterHandle, &bufSize,
				&bufCount, &emptyBuf[0]) // uses null ptr here according to MSDN.
			if ret == win.PDH_MORE_DATA {
				filledBuf := make([]win.PDH_FMT_COUNTERVALUE_ITEM_DOUBLE, bufCount*size)
				ret = win.PdhGetFormattedCounterArrayDouble(metric.counterHandle,
					&bufSize, &bufCount, &filledBuf[0])
				for i := 0; i < int(bufCount); i++ {
					c := filledBuf[i]
					var s string = win.UTF16PtrToString(c.SzName)

					var add bool

					if metric.include_total {
						// If IncludeTotal is set, include all.
						add = true
					} else if metric.instance == "*" && !strings.Contains(s, "_Total") {
						// Catch if set to * and that it is not a '*_Total*' instance.
						add = true
					} else if metric.instance == s {
						// Catch if we set it to total or some form of it
						add = true
					} else if metric.instance == "------" {
						add = true
					}

					if add {
						fields := make(map[string]interface{})
						tags := make(map[string]string)
						if s != "" {
							tags["instance"] = s
						}
						tags["objectname"] = metric.objectName
						fields[string(metric.counter)] = float32(c.FmtValue.DoubleValue)

						var measurement string
						if metric.measurement == "" {
							measurement = "win_perf_counters"
						} else {
							measurement = metric.measurement
						}
						acc.AddFields(measurement, fields, tags)
					}
				}

				filledBuf = nil
				// Need to at least set bufSize to zero, because if not, the function will not
				// return PDH_MORE_DATA and will not set the bufSize.
				bufCount = 0
				bufSize = 0
			}

		}
	}

	return nil
}