preserve custom colours between calls to wxGetColourFromUser(), also allow passing a custom wxColourData to it (modified patch 1832582)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@50056 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/function.tex

@@ -2109,7 +2109,7 @@ customization.
 
 \membersection{::wxGetColourFromUser}\label{wxgetcolourfromuser}
 
-\func{wxColour}{wxGetColourFromUser}{\param{wxWindow *}{parent}, \param{const wxColour\& }{colInit}, \param{const wxString\& }{caption = wxEmptyString}}
+\func{wxColour}{wxGetColourFromUser}{\param{wxWindow *}{parent}, \param{const wxColour\& }{colInit}, \param{const wxString\& }{caption = wxEmptyString}, \param{wxColourData *}{data = \NULL}}
 
 Shows the colour selection dialog and returns the colour selected by user or
 invalid colour (use \helpref{wxColour:IsOk}{wxcolourisok} to test whether a colour
@@ -2123,6 +2123,10 @@ is valid) if the dialog was cancelled.
 
 \docparam{caption}{If given, this will be used for the dialog caption.}
 
+\docparam{data}{Optional object storing additional colour dialog settings, such
+as custom colours. If none is provided the same settings as the last time are
+used.}
+
 \wxheading{Include files}
 
 <wx/colordlg.h>