The control is a round-cornered rectangle containing the given text. The rectangle has a bold outline to represent that it is the default response for the user. The control sends a message to its parent window when the user chooses the control. The DEFPUSHBUTTON statement defines the text, identifier, dimensions, and attributes of the control. The predefined class for this control is WC_BUTTON. If you do not specify a style, the default style is BS_PUSHBUTTON, BS_DEFAULT, and WS_TABSTOP.
Use the DEFPUSHBUTTON statement only in a DIALOG or WINDOW statement.