How to get content plugin fields from the submenus.

[majkinetor !]

I want to call TC content plugin from the script.
I call ContentGetSupportedField function to get avaialble fields until function returns 0, but this only returns fields for first level of hierarchy.

For instance, plugin, filediz has fields

Short description=0
Long description=1
Version info=2

and Version info contain another set of fields. How can I get their names/indexes. I don't see this described in SDK. ( looking at version 1.4)

Code: Select all

TC_GetField(FileName, tcplug, idx=0, unit=0){
	;ft_fieldempty=-3, ft_nosuchfield=-1, ft_fileerror=-2
   	VarSetCapacity(info,512,0)
	res := DllCall(tcplug "\ContentGetValue", "str", FileName, "int", idx, "int", unit, "uint", &info, "int", 512, "int", 0)
	VarSetCapacity(info,-1)
	return info
}

thx.

[Lefteous]

The submenu doesn't represent fields but units. For each field a pipe separated list of units can be returned in the "Units "parameter. This is also documented in detail in the content plug-in SDK.

[majkinetor !]

Thanks.

By the way, can you tell me anything about fact that I get the list of fields for all other plugins except for ShellDetails. I tried around 15 different content plugs and they all return fileds normaly. The only one that doesn't is yours, which returns "no more fields" imediately. Does it need anything specific to run ? I tried it on 2 computers withs same results, one of which to have COMMANDER_PATH defined in machine registry.

[franck8244]

2majkinetor

Shelldetails is the only plugin (IIRC) that must not be unloaded between ContentGetSupportedField and ContentGetValue.

(I had to change WdxInfoPacker for that...)

[Lefteous]

There are no special requirements for my plug-in except the requirements mentioned in the documentation:
http://lefteous.de/tc/docs/shelldetails/readme.htm#requirements

[majkinetor !]

Shelldetails is the only plugin (IIRC) that must not be unloaded between ContentGetSupportedField and ContentGetValue.

I can't for start load its fields. It returns 0 imediately.
And if I try GetValue, it also return nothing on index 0.

There are no special requirements for my plug-in except the requirements mentioned in the documentation:

I see there are no special requirements. Its funny though how your plugin is the only one so far that doesn't retun results which means code is probably good, but something else is happenin.

[Lefteous]

It could be a problem with shelldetails.ini creation. Maybe the plug-in tries to store the file in an invalid location? Please check with filemon which paths are used by the plug-in.

[HolgerK]

..., but something else is happenin.

Perhaps a missing CoInitialize() ?

Kind regards,
Holger

[Lefteous]

Perhaps a missing CoInitialize() ?

Well this would refer to a problem inside the plug-in not in the calling environment.

[majkinetor !]

Filemon show that no ini file is read when i call the app. If I delete ini file it still work OK in TC.

[Lefteous]

You are calling ContentSetDefaultParams prior to ContentGetSupportedField don't you?

[HolgerK]

Perhaps a missing CoInitialize() ?

Well this would refer to a problem inside the plug-in not in the calling environment.

Who knows what will happen if the apartment isn't prepared for COM?
Kind regards,
Holger

[Lefteous]

Who knows what will happen if the apartment isn't prepared for COM?

CoInitialize is called inside the plug-in. There is no need to call it in the calling app.

[HolgerK]

If I remember well, it should be called once per every new thread.
Problems When You Call CoInitialize and CoUninitialize Repeatedly in Multithreaded Apartment
So its normally in the responsibility of the calling app to do this once.

Kind regards,
Holger

[majkinetor !]

You are calling ContentSetDefaultParams prior to ContentGetSupportedField don't you?

This was the problem. Now I get the name of fields but units are still returned empty. Again, units are normaly returned with other plugins.


Thx.