Determine the DCL value of this tile's attribute.
This function returns the value of the dialog box attribute. Note that this value changes due to user input, as well as calls made by the dlg_get_attr function. Unlike dlg_get_attr, this function is used inside a callback function.
The key argument specifies the dialog box tile; key is a string and is case-sensitive.
The attribute argument is the name of the attribute. See the DCL Programming Reference for valid attribute names.
The value argument is the value of the attribute returned by this function.
NOTES
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Programming Overview of SDS™ (Solutions Development System™)