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Build a Simple VCL Application for QuickBooks POS Data

How to build a simple VCL Application to view QuickBooks POS data in RAD Studio using the CData FireDAC Components for QuickBooks POS.

Embarcadero RAD Studio provides a development environment for Delphi and C++Builder applications. With the CData FireDAC Components for QuickBooks POS, you gain access to live QuickBooks POS data within RAD Studio, abstracting the data into tables, views, and stored procedures that can be used to retrieve and update QuickBooks POS data. This article will walk through connecting to QuickBooks POS and creating a simple VCL application with the Form Designer.

Creating a VCL Application for QuickBooks POS Data

The following instructions show how to use the Form Designer to create a simple VCL Forms application that shows the basic FireDAC objects needed to connect to QuickBooks POS from any application.

The following example populates a TDBGrid control.

  1. Create a new VCL Forms Application.
  2. Drop a TFDPhysQuickBooksPOSDriverLink and TFDConnection object onto the form.
  3. Double-click the TFDConnection object. The FireDAC Connection Editor is displayed. Select "CData.QuickBooksPOS" in the DriverId menu and configure the connection properties.

    When you are connecting to a local QuickBooks instance, you do not need to set any connection properties.

    Requests are made to QuickBooks POS through the Remote Connector. The Remote Connector runs on the same machine as QuickBooks POS and accepts connections through a lightweight, embedded Web server. The server supports SSL/TLS, enabling users to connect securely from remote machines.

    The first time you connect, you will need to authorize the Remote Connector with QuickBooks POS. See the "Getting Started" chapter of the help documentation for a guide.

  4. Drop a TFDQuery object onto the form and set the properties below:

    • Connection - Set this property to the TFDConnection object, if this object is not already specified.
    • SQL - Click the button in the SQL property and enter a query.
    • Active - Set this property to true.
  5. Drop a TDataSource object onto the form and set the following property:

    • DataSet - In the menu for this property, select the name of the TFDQuery object.
  6. Drop a TDBGrid control onto the form and set the following property:

    • DataSource - Select the name of the TDataSource.
  7. Drop a TFDGUIxWaitCursor onto the form. This is required to avoid a run-time error.

You now have an executable application that displays the results of the SQL Query set in the TFDQuery object.