[Save image]

 
     UniImage.Picture.Graphic := TJPEGImage.Create

 

Could this produce a memory leak? I Think so, if i read this note from embarcadero:

 

Note: When assigning the Graphic property, TPicture assigns the properties of a another TGraphic object. It does not take ownership of the specified object.

 

TPicture seems to use assign to make a copy (and not take ownership) of the created JpegImage-Object so that this is never be freed?!

[Save image]

What filetype (.bmp, .jpg, .png, ...) do you upload and do you really want to save it as Bitmap?

 

You should delete "BS.Free;".

 

What if you use field type ftBlob instead of ftGraphic?

[Save image]

Do you use the TUniFileUpload component? Then you can use the OnCompleted event of this component, see here:

 

http://forums.unigui.com/index.php?/topic/1107-load-picture-into-database/page__p__3528__hl__fileupload__fromsearch__1&do=findComment&comment=3528

[Smartphone GPS and UNIGUI !!]

<script type="text/javascript">
 
function success(position) {
 alert(position.coords.latitude + ' / ' + position.coords.longitude);
}
 
function error(msg) {
 alert('failed');
}
 
 
if (navigator.geolocation) {
 navigator.geolocation.getCurrentPosition(success, error);
} else {
 alert('not supported');
};
 
</script>

[TUniFileUpload: Is it possible to execute without the dialog?]

With the new dropbox UI you can upload a file just with drag and drop.

 

That is using HTML5 and works with UniGui too (in Firefox, Chrome and maybe other).

 

With this Code you can drag'n'drop files from Windows Explorer to the Upload-division in your website. The (picture-)file will be displayed below; everything on Clientside:

 

Link

 

Adding this code allows you to upload the files to server:

 

Link

 

But my question to Farshad: Is there a size limit for params in ajaxRequest?

[TUniFileUpload: Is it possible to execute without the dialog?]

(Uni)FileUpload uses something like:

 

<form method="post" enctype="multipart/form-data">
 <input name="Datei" type="file">
</form>

 

And modern browsers don't let you change anything (like the "value" attribute) of <input type="file">. The browser lets the user choose a file and only just this will be uploaded for security reasons.

 

Since the Files you got are already been base64-encoded, you could easy use something like:

 

ajaxRequest(MyForm.MyComponent, 'SendFile', ['FileContent='+evt.target.result]);
//(where evt.target.result is the base64-encoded-file you got, see other thread)

 

in Delphi you need then something like:

 

procedure TMyForm.MyComponentAjaxEvent(Sender: TComponent; EventName: string; Params: TStrings);
begin
 if EventName='SendFile' then begin
   //Params.Values['FileContent']; contains the base64-encoded data
   //it should be no problem to decode it here in delphi on server
   //...
 end;
end;

[TUniFileUpload: Is it possible to execute without the dialog?]

If UniFileUpload cannot be used, then I'd have to implement the uploading code directly;

 

Is there a size limit for params in ajaxRequest?

 

If not, you could use ajaxRequest to send the (already) base64-encoded data to the server. Then, on Server, you must decode the data to a binary file.

[D&D from OS?]

simply put this code in an UniHtmlFrame:

 

<script type="text/javascript">


function dragEnter(evt) {
 evt.stopPropagation();
 evt.preventDefault();
}

function dragExit(evt) {
 evt.stopPropagation();
 evt.preventDefault();
}

function dragOver(evt) {
 evt.stopPropagation();
 evt.preventDefault();
}

function drop(evt) {
 evt.stopPropagation();
 evt.preventDefault();
 var files = evt.dataTransfer.files;
 var count = files.length;
 // Only call the handler if 1 or more files was dropped.
 if (count > 0)
   handleFiles(files);
}


function handleFiles(files) {
 var file = files[0];
 document.getElementById("droplabel").innerHTML = "Processing " + file.name;
 var reader = new FileReader();
 // init the reader event handlers
 reader.onload = handleReaderLoad;
 // begin the read operation
 reader.readAsDataURL(file);
}


function handleReaderLoad(evt) {
 var img = document.getElementById("preview");
 img.src = evt.target.result;
}


function initEventHandlers() {
 var dropbox = document.getElementById("dropbox")
 dropbox.addEventListener("dragenter", dragEnter, false);
 dropbox.addEventListener("dragexit", dragExit, false);
 dropbox.addEventListener("dragover", dragOver, false);
 dropbox.addEventListener("drop", drop, false);
}

</script>


<div id="dropbox" style="background-color: #00AAFF; height: 40px">
<span id="droplabel">Drop file here...</span>
</div>

<br/>

<img id="preview" src="" alt="[ preview will display here ]" />


<script type="text/javascript">
initEventHandlers();
</script>

[UniURLFrame and Elements]

I have an UrlFrame with the id "myUrlFrame" and a "div" on it with the name "myTile3". To get the text of this element, I use the following code:

 

document.getElementById('myUrlFrame').contentWindow.document.getElementById('myTile3').firstChild.data;

 

But the server and port must be exactly the same; Browsers deny access for security reasons, if you use another servername or port.

[isapi module,apachi mysql settings]

When I make standalone server application it works correctly, but in isapi module error occurs:

Project1: 000008FC: 10:59:03:Exception : None of the dynamic libraries can be found: libmysql51.dll, libmysql50.dll, libmysql.dll

 

Are the dll's located in the app-path? Then standalone server finds the dll's in its path, but in case of isapi the searchpath is the path of the internetserver (iis, apache).