1.2.4 Creating Tab-based Dialog

The following example shows how to create a tab-based X-Function dialog, as well as an event1 function to catch when tab is changed.

  1. Press F10 to open X-Function Builder. Type "tabdlg" into the X-Function edit box as the X-Function name.
  2. In the Variables panel, Click on x to change name to str1. Change Data Type to string. Change Option String to G:-Tab One. Right click on the grey area in the panel and add three variables and change the properties of the variables as shown below. Click Save to save this X-Function.
  3. Tabdlg.png

  4. Open the X-Function in Code Builder, and add the following line of code at the beginning.
    #include <event_utils.h>

    Put the following code in TabDialog_event1.

    //Codes for tab change
    	int nLastTabIndex = -1;
    	if ( !trGetN.GetAttribute(STR_LAST_TAB_INDEX_ATTRIB, nLastTabIndex) )
    		nLastTabIndex = -1;
    	printf("TabChanged: Old=%d, New=%d\n", nLastTabIndex, nRow);
    	trGetN.SetAttribute(STR_LAST_TAB_INDEX_ATTRIB, nRow);

    Put the following code in TabDialog_before_execute.

    if ( is_xf_startup(nGetNDialog, dwCntrl) )
    	STATS_GETN_GROUPED_SUBNODES_AS_TABS; //Show the branches in tab
    	GETN_ENABLE_TABCHANGE_EVENT(trGetN, true); //Enable event for tab change
  5. Click the Ocguide XF Compile Button.PNG button.
  6. Run tabdlg -d in the Command window to open the dialog. Switching between the tabs will trigger the event and print out messages like "TabChanged: Old=-1, New=2".