virtual BOOL OnColorOK( );
Return Value
Nonzero if the dialog box should not be dismissed; otherwise 0 to accept the color that was entered.
Remarks
Override this function only if you want to provide custom validation of the color entered into the dialog box. This function allows you to reject a color entered by a user into a common color dialog box for any application-specific reason. Normally, you do not need to use this function because the framework provides default validation of colors and displays a message box if an invalid color is entered.
Use the GetColor member function to get the RGB value of the color.
If 0 is returned, the dialog box will remain displayed in order for the user to enter another filename.