Finding documentation for a type library in Java

Build QR Code in Java Finding documentation for a type library
Finding documentation for a type library
Java qr code decoderwith java
Using Barcode Control SDK for Java Control to generate, create, read, scan barcode image in Java applications.
Double-clicking the name of a type library opens the library inspector window, which shows all the objects defined in the type library. Many types of objects are shown, but we describe in the following list only the sections of interest to ColdFusion developers: Enums: Often, in documentation for a COM object, you see example code such as the following:
Java qr barcode integratingfor java
generate, create denso qr bar code none with java projects
myTidyObj.CharEncoding = ascii;
recognizing qr code with java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
This is confusing, however, because ascii is not the name of a ColdFusion variable; rather, it is the name of an enumerated constant defined in the type library. These groups of enumerated constants are defined in this section of the library inspector. ColdFusion can t recognize these constant names, so you must use the library inspector to look up ascii, as shown in Figure 29-4.
Bar Code barcode library in java
using barcode encoder for java control to generate, create bar code image in java applications.
Part V Integrating ColdFusion MX with Other Technologies
Bar Code barcode library with java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
Figure 29-4: Viewing enumerated constants by using the library inspector. You can see in the figure that the numeric equivalent to ascii is 1, so your ColdFusion code would look as follows:
Control qr-codes image on visual c#
using .net todraw qr codes for asp.net web,windows application
myTidyObj.CharEncoding = 1;
Access qr code jis x 0510 for .net
using barcode encoding for asp.net web service control to generate, create qr barcode image in asp.net web service applications.
Interfaces: This is a list of all the interfaces implemented in this type library. Expanding one of these interfaces gives you a list of the properties and/or methods exposed by the interface; see the section Interpreting method and property definitions, later in this chapter, for information on interpreting the property and method definitions. Dispinterfaces: Remember that, whenever an interface is bound to an object that implements IDispatch, it is known as a dispinterface and can be called by ColdFusion. As such, any of the interfaces listed in this section are callable by ColdFusion (although you must find the CLSID or ProgID first).
QR Code drawer on .net
generate, create qr code 2d barcode none on .net projects
Finding documentation for an interface
Control qr code jis x 0510 size for visual basic.net
to insert qr code jis x 0510 and qr codes data, size, image with visual basic.net barcode sdk
If you know the name of an interface but you don t know the name of the associated type library or class, you can expand the Interfaces node in the OLEView tree to get a list of all the interfaces exposed by all the type libraries in the system. Double-clicking an interface accesses its CLSID (also called an IID) and a button to view the TypeInfo. Clicking this button opens the interface inspector window, showing you all the properties and/or methods exposed by this interface. See the following section for details on interpreting these methods and properties.
Data Matrix Barcodes generating for java
use java data matrix 2d barcode integration toinclude data matrix 2d barcode for java
Interpreting method and property definitions
QR Code barcode library with java
using barcode encoder for java control to generate, create quick response code image in java applications.
In inspecting the properties and methods of an interface, keep in mind that a COM developer can implement a property in two ways. The first, no longer common, is to clearly separate methods from properties, making the properties receptacles for data and the methods functions to work on those properties. The second method, which is much more prevalent and also more flexible, is to implement the properties as methods.
Java upc-a supplement 2 drawerfor java
using java torender universal product code version a on asp.net web,windows application
29 Integrating COM
MSI Plessey printer in java
generate, create msi none for java projects
COM interfaces are defined in a language known as IDL, or Interface Definition Language. Implementing an old-style property in IDL looks as follows:
Microsoft Word matrix barcode integrationon microsoft word
using microsoft word toconnect 2d barcode on asp.net web,windows application
[id(0x0000008b), helpcontext(0x0001008b)] BSTR Caption;
1D maker on .net
using barcode implementation for .net winforms control to generate, create linear barcode image in .net winforms applications.
The id and helpcontext keywords assign numeric values to the property; BSTR is the type of the property (BSTR being the COM equivalent of a ColdFusion string); and Caption is the name of the property. As such, to assign a value to this property in ColdFusion, you would use the following syntax:
Control 3 of 9 barcode data in microsoft word
to produce uss code 39 and code39 data, size, image with word documents barcode sdk
myCOMObject.Caption = The new Caption ;
PDF-417 2d Barcode barcode library with vb.net
using visual .net toinclude pdf 417 with asp.net web,windows application
This works, but you have no easy way to make this kind of property read-only. Worse is the fact that the Caption property can t have any intelligent logic attached to it because it s just a receptacle for data. The way that most COM objects now define their properties is with IDL, as follows:
Control gtin - 13 image on visual c#.net
generate, create ean13 none in visual c# projects
[id(0x0000008b), propget, helpcontext(0x0001008b)] BSTR Caption(); [id(0x0000008b), propput, helpcontext(0x0001008b)] void Caption([in] BSTR rhs);
Embed data matrix ecc200 with .net
use sql database gs1 datamatrix barcode creator toencode data matrix 2d barcode in .net
Instead of defining an individual property named Caption, two methods are now named Caption, one (known as a getter) that takes no arguments but returns the current value and one (known as a setter) that returns nothing and sets the new value to whatever is passed in the rhs argument. Assigning a value to this kind of property uses the following syntax:
QR Code printing for vb
using barcode creator for aspx.net crystal control to generate, create qr image in aspx.net crystal applications.
myCOMObject.Caption = The new Caption ;
Now wait! You re probably thinking that s the same syntax that you used in CFSCRIPT at the beginning of the chapter, and you re right. This change in the IDL is totally transparent to ColdFusion; notice the propget and propput keywords in the second snippet of IDL. Those keywords tell COM to treat these two functions as a transparent interface into the Caption property.