Summary

Synopsis

Applies to InstallScript projects. This article provides InstallScript code that disables certain dialog box controls at run time. This code is meant to be run on a dialog with two edit fields, one for an email address and one for a phone number. It prompts the user, before the custom dialog box is displayed, to ask if they have an email address or phone number, and based on that answer the edit box is either disabled or left alone (enabled).

Discussion

 //get window handle of custom dialog box
     hwndDlg = CmdGetHwndDlg( szDialogName ); 

 //get handle of control in custom dialog box 
     hwndItem = GetDlgItem( hwndDlg, IDC_EDIT1 );

 //disable control
     /*EnableWindow will enable or disable the control. */
     /* What you want to do dictates whether the parameter is TRUE or FALSE.*/
     EnableWindow( hwndItem, FALSE);

Additional Information

For more information see the InstallShield Help Library topic:
? CmdGetHwndDlg

For more information on the APIs used, see the MSDN Library articles:

? GetDlgItem function
? EnableWindow function