Archive
ASP.NET Crash on “OnBubbleEvent”
Capturing a webcam to an AVI file
SendMessage(lwndC, WM_CAP_FILE_SAVEDIB, 0&, filename)
End Sub
Where WM_CAP_FILE_SAVEDIB is defined as WM_USER+25
– It also requires an overloaded SendMessage declaration, which accepts a string as it’s final parameter.
I then found some CS code which converts BMP files to AVI (http://midget3d.com/gabe/AviLib.zip)
then used this to write bitmaps to disk, and build them into an AVI
saveFileDialog.Filter="*.avi|*.avi";
saveFileDialog.ShowDialog();
string strAVI = saveFileDialog.FileName;
string strBMP = saveFileDialog.FileName.Replace(".avi",".bmp");
AviWriter aviWriter =
new AviWriter(strAVI, AviCompression.None, 24, 320, 240);
isRecording =
true;
while(isRecording)
{
webcamControl1.SaveBitmap(strBMP);
aviWriter.WriteFrame(
new Bitmap(strBMP));
Application.DoEvents();
}
aviWriter.Close();
Compress an AVI movie using C#
private
bool ConvertToQuickTime(AxQTOControlLib.AxQTControl Control,string fromFileName,string toFileName){
this.axQTControl1.URL = fromFileName; if (!axQTControl1.Movie.CanExport) return false;QTOLibrary.QTQuickTime qt;
qt = axQTControl1.QuickTime;
if (qt.Exporters.Count == 0) qt.Exporters.Add();QTOLibrary.QTExporter exp;
exp = qt.Exporters[1];
// Set exporter type: AVI, 3G, MPEG-4, PNG, etc.exp.TypeName = "QuickTime Movie";
exp.SetDataSource(axQTControl1.Movie);
exp.DestinationFileName = toFileName;
exp.ShowProgressDialog =
true;exp.BeginExport();
return true;}
Converting a DataTable to a Hashtable
private
Hashtable convertDataTableToHashTable(DataTable dtIn,string keyField,string valueField){
Hashtable htOut =
new Hashtable(); foreach(DataRow drIn in dtIn.Rows){
htOut.Add(drIn[keyField].ToString(),drIn[valueField].ToString());
}
return htOut;}
Parsing WindJet routes
private
string GetWindJetRoutes(string HTML){
string outRoutes = ""; // Step 1. Delete between FL_Departure> and /SELECT string strOutboundRoutes = DeleteBetween(HTML,"FL_Departure>","/SELECT");MatchCollection mcDepIata = Regex.Matches(strOutboundRoutes,"value=(?<FromIata>[A-Z]{3})");
// Step 2. extract ToIata Array string strRegex = @"arrayVoli[(?<IDFrom>d+)][(?<IDTo>d+)]=new.Option(‘w.*'(?<ToIata>w{3})";MatchCollection mcDestIata = Regex.Matches(HTML,strRegex);
for(int iMatch=0;iMatch<mcDestIata.Count;iMatch++){
int intIDFrom = Convert.ToInt32(mcDestIata[iMatch].Groups["IDFrom"].Value); string strFromIata = mcDepIata[intIDFrom-1].Groups["FromIata"].Value; string strToIata = mcDestIata[iMatch].Groups["ToIata"].Value;outRoutes += "’" + strFromIata + "’,’" + strToIata + "’rn";
}
return outRoutes;}
Might be of interest to someone out there…. (or if not, my own personal reference)
Network Programming in .NET 