DLGTEMPLATE structure                                     https://msdn.microsoft.com/en-us/library/windows/desktop/ms645394(v=vs.85).aspx
                                                           Defines the dimensions and style of a dialog box. 
                                                           This structure, always the first in a standard template for a dialog box, also specifies the number of controls in the dialog box and 
                                                           therefore specifies the number of subsequent DLGITEMTEMPLATE structures in the template.

 DLGTEMPLATEEX structure                                   https://msdn.microsoft.com/en-us/library/windows/desktop/ms645398(v=vs.85).aspx
                                                           An extended dialog box template begins with a DLGTEMPLATEEX header that describes the dialog box and specifies the number of controls in the dialog box. 
                                                           For each control in a dialog box, an extended dialog box template has a block of data that uses the DLGITEMTEMPLATEEX format to describe the control.

 DLGITEMTEMPLATE structure                                 https://msdn.microsoft.com/en-us/library/windows/desktop/ms644997(v=vs.85).aspx
                                                           Defines the dimensions and style of a control in a dialog box.
                                                           One or more of these structures are combined with a DLGTEMPLATE structure to form a standard template for a dialog box.

 DLGITEMTEMPLATEEX structure                               https://msdn.microsoft.com/en-us/library/windows/desktop/ms645389(v=vs.85).aspx
                                                           A block of text used by an extended dialog box template to describe the extended dialog box.
                                                           For a description of the format of an extended dialog box template, see DLGTEMPLATEEX.

 Common Control Parameters                                 https://msdn.microsoft.com/en-us/library/windows/desktop/aa380902(v=vs.85).aspx