DataIn with multiple arguments

[jykim]

I'm trying to implement 'HighlightSelection' in my SWT application using SWT's ActiveX support.

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DoVerb("Documents[0]", "HighlightSelection", DataIn(0x800080, 0.65), NULL, 0);

The method requires two input arguments, but I don't know how to pass that DataIn parameter since the below code is not valid.

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Variant[] dataIn = new Variant[] { new Variant(0x800080), new Variant(0.65) };
		
auto.invoke(
	getDispatcherId("DoVerb"), 
	new Variant[] { 
		new Variant("Documents[0]"),
		new Variant("HighlightSelection"),
		dataIn,
		new Variant(),
		new Variant(0)
	});

Please help!

[Stefan - PDF-XChange]

Hi jykim,

Unfortunately no one in our team has enough knowledge in Java and SWT, to directly help you solve your problem.

We ran a simple example test with String[] and String arguments in a Variant[] and it didn't even want to compile, so we do believe the problem is with trying to mix array and non-aray elements.

Please let us know if you find a solution/workaround on this.

Best Regards,
Stefan

[jykim]

Thanks Stefan for looking into this.
It basically comes down to how to create "SafeArray" as input in Java/SWT.
I know there are some users in this forum, who are dealing with Java/SWT for this Viewer SDK.
Could anyone please help me out here?

[jykim]

I've tried creating safearray following this example http://it.comegoogle.com/examples/Code/ ... EARRAY.htm, but it didn't work out.

I really need to make this work, otherwise I can't use PDF-XChange Viewer.
Please help!

[jykim]

Dear Support team,

Is there any chance that you can make new APIs available for doing this, not using "safearray" as input or output?
For example, instead of doing this,

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DoVerb("Documents[0].Pages[0].Text", "Select", DataIn(0, 10, 1), DataOut, 0);

have a new API such as,

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Invoke("Documents[0].Pages[0].Text.Select", 0, 10, 1);

or,

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textObj = Documents[0].Pages[0].Text;
textObj.Select(Long offset, Long length, Long flag);

Please let me know if it's possible for you to make such APIs that's possible for us to use.
Thanks!

[Corwin - Tracker Sup]

Hello jykim,

In new build you will be able to use our own implementation of SafeArray. To get this array you may use next code:

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Variant dataOut=new Variant(OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, Variant.sizeof), (short)(OLE.VT_BYREF | OLE.VT_I4));
auto.invoke(getDispId("DoVerb"), 
           		new Variant[] {
            	new Variant(""),
            	new Variant(".ARGS"),
            	new Variant(""),
            	dataOut,
            	new Variant(0)});
OleAutomation Args = dataOut.getAutomation();

Adding items to array:

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Args.invoke(getDispId(Args,"Add"),
	new Variant[]{
	new Variant("SomeString")}); // Add string

Args.invoke(getDispId(Args,"Add"),
	new Variant[]{
	new Variant(12345)}); // Add integer

Then you will be able to pass this array to DoVerb function

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auto.invoke(getDispId("DoVerb"), 
          		new Variant[] {
              	new Variant(""),
              	new Variant("OpenDocument"),
              	new Variant(Args),
              	new Variant(),
              	new Variant(0)});

HTH.

[jykim]

That's wonderful! You guys rock!
By the way, I see that you have new version (v.2.042.6) released today. Is this API for SafeArray included in this version? Or, is it going to be included in the next release?

[Vasyl - PDF-XChange]

The build v.2.042.6 contains this feature already.

Thanks.

[jykim]

Thanks Vasyl and Corwin!
I was able to make it work after I changed the Variant type with "OLE.VT_BYREF | OLE.VT_VARIANT".

In new build you will be able to use our own implementation of SafeArray. To get this array you may use next code:

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Variant dataOut=new Variant(OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, Variant.sizeof), (short)(OLE.VT_BYREF | OLE.VT_I4));
...

...

Changed to

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Variant dataOut=new Variant(OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, Variant.sizeof), (short)(OLE.VT_BYREF | OLE.VT_VARIANT));

[John - Tracker Supp]

Thanks and pleased you got there