public static string?GetFormulaEditPrefix()
{
if (_shutdownStarted)
{
return(null);
}
try
{
var fmlaInfo = new FmlaInfo();
var result = LPenHelper(xlGetFmlaInfo, ref fmlaInfo);
if (result != 0)
{
Logger.WindowWatcher.Warn($"LPenHelper Failed. Result: {result}");
// This exception is poorly handled when it happens in the SyncMacro
// We only expect the error to happen during shutdown, in which case we might as well
// handle this as if no formula is being edited
// throw new InvalidOperationException("LPenHelper Failed. Result: " + result);
// -
return(null);
}
if (fmlaInfo.wPointMode == xlModeReady)
{
Logger.WindowWatcher.Verbose($"LPenHelper PointMode Ready");
return(null);
}
// We seem to mis-track in the click case when wPointMode changed from xlModeEnter to xlModeEdit
string fullFormula = Marshal.PtrToStringUni(fmlaInfo.lpch, fmlaInfo.cch);
Logger.WindowWatcher.Verbose("LPenHelper Status: PointMode: {0}, Formula: {1}, First: {2}, Last: {3}, Caret: {4}",
fmlaInfo.wPointMode, fullFormula, fmlaInfo.ichFirst, fmlaInfo.ichLast, fmlaInfo.ichCaret);
var prefixLen = Math.Min(Math.Max(fmlaInfo.ichCaret, fmlaInfo.ichLast), fmlaInfo.cch); // I've never seen ichLast > cch !?
string formulaPrefix = Marshal.PtrToStringUni(fmlaInfo.lpch, prefixLen);
IntelliSenseEvents.Instance.OnEditingFormula(fullFormula, formulaPrefix);
return(formulaPrefix);
}
catch (AccessViolationException)
{
Logger.WindowWatcher.Warn("LPenHelper - Access Violation!");
return(null);
}
catch (Exception ex)
{
// Some unexpected error - for now we log as an error and re-throw
Logger.WindowWatcher.Error(ex, "LPenHelper - Unexpected Error");
throw;
}
}
// Returns null if not in edit mode
public static string GetFormulaEditPrefix()
{
var fmlaInfo = new FmlaInfo();
var result = LPenHelper(xlGetFmlaInfo, ref fmlaInfo);
if (result != 0)
{
throw new InvalidOperationException("LPenHelper failed. Result: " + result);
}
if (fmlaInfo.wPointMode == xlModeReady) return null;
Debug.Print("LPenHelper Status: PointMode: {0}, Formula: {1}, First: {2}, Last: {3}, Caret: {4}",
fmlaInfo.wPointMode, Marshal.PtrToStringUni(fmlaInfo.lpch, fmlaInfo.cch), fmlaInfo.ichFirst, fmlaInfo.ichLast, fmlaInfo.ichCaret);
var prefixLen = Math.Min(Math.Max(fmlaInfo.ichCaret, fmlaInfo.ichLast), fmlaInfo.cch); // I've never seen ichLast > cch !?
return Marshal.PtrToStringUni(fmlaInfo.lpch, prefixLen);
}
public static string GetFormulaEditPrefix()
{
if (_shutdownStarted)
return null;
try
{
var fmlaInfo = new FmlaInfo();
var result = LPenHelper(xlGetFmlaInfo, ref fmlaInfo);
if (result != 0)
{
Logger.WindowWatcher.Warn($"LPenHelper Failed. Result: {result}");
// This exception is poorly handled when it happens in the SyncMacro
// We only expect the error to happen during shutdown, in which case we might as well
// handle this asif no formula is being edited
// throw new InvalidOperationException("LPenHelper Failed. Result: " + result);
return null;
}
if (fmlaInfo.wPointMode == xlModeReady)
{
// Logger.WindowWatcher.Verbose($"LPenHelper PointMode Ready");
return null;
}
//Logger.WindowWatcher.Verbose("LPenHelper Status: PointMode: {0}, Formula: {1}, First: {2}, Last: {3}, Caret: {4}",
// fmlaInfo.wPointMode, Marshal.PtrToStringUni(fmlaInfo.lpch, fmlaInfo.cch), fmlaInfo.ichFirst, fmlaInfo.ichLast, fmlaInfo.ichCaret);
var prefixLen = Math.Min(Math.Max(fmlaInfo.ichCaret, fmlaInfo.ichLast), fmlaInfo.cch); // I've never seen ichLast > cch !?
return Marshal.PtrToStringUni(fmlaInfo.lpch, prefixLen);
}
catch (AccessViolationException)
{
Logger.WindowWatcher.Warn("LPenHelper - Access Violation!");
return null;
}
catch (Exception ex)
{
// Some unexpected error - for now we log as an error and re-throw
Logger.WindowWatcher.Error(ex, "LPenHelper - Unexpected Error");
throw;
}
}
// Returns null if not in edit mode
public static string GetFormulaEditPrefix()
{
var fmlaInfo = new FmlaInfo();
var result = LPenHelper(xlGetFmlaInfo, ref fmlaInfo);
if (result != 0)
{
throw new InvalidOperationException("LPenHelper failed. Result: " + result);
}
if (fmlaInfo.wPointMode == xlModeReady)
{
return(null);
}
Debug.Print("LPenHelper Status: PointMode: {0}, Formula: {1}, First: {2}, Last: {3}, Caret: {4}",
fmlaInfo.wPointMode, Marshal.PtrToStringUni(fmlaInfo.lpch, fmlaInfo.cch), fmlaInfo.ichFirst, fmlaInfo.ichLast, fmlaInfo.ichCaret);
var prefixLen = Math.Min(Math.Max(fmlaInfo.ichCaret, fmlaInfo.ichLast), fmlaInfo.cch); // I've never seen ichLast > cch !?
return(Marshal.PtrToStringUni(fmlaInfo.lpch, prefixLen));
}
internal static extern int LPenHelper(int wCode, ref FmlaInfo fmlaInfo); // 'long' return value means 'int' in C (so why different?)
static extern int LPenHelper(int wCode, ref FmlaInfo fmlaInfo); // 'long' return value means 'int' in C (so why different?)
internal static extern int LPenHelper(int wCode, ref FmlaInfo fmlaInfo);
