Thread: std::sort and listview_sortitems

Ok, i have a list view control that holds data like, artist names, music names, etc... and i have a std::vector<std::string>, that holds all the paths for the files that have X artist name or X music name. When, i sort the listview, std::vector can´t sort itself. So i tryed std::sort, but when i did that, i realized that i was sorting the name of the paths, not the name of the paths according (don´t know how to write this in english) to their respective artist names or music names. What could i do?

Code:

int CALLBACK ListViewCompareProc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{
	cString String;
	static WCHAR szBuf1[50], szBuf2[50];
 
	ListView_GetItemText(Cont.ContainerhWnd, lParam1, lParamSort, szBuf1, sizeof(szBuf1));
	ListView_GetItemText(Cont.ContainerhWnd, lParam2, lParamSort, szBuf2, sizeof(szBuf2));

	return(strcmp(String.ToMultibyte(szBuf1, CP_ACP,0).c_str(), String.ToMultibyte(szBuf2, CP_ACP,0).c_str()));//DESCENDING ORDER
}

Thank you

Firstly, ListView_SortItemsEx must be used rather than ListView_SortItems.

And the function can look something like:

Code:

#include <wchar.h> /* Need this for wcscmp, could also use lstrcmp from windows.h */

int CALLBACK ListViewCompareProc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{
	WCHAR szBuf1[50], szBuf2[50]; /* No need for static */
 
	/* Get the text of the two items. Note that buffer size is in characters, not bytes. */
	ListView_GetItemText(Cont.ContainerhWnd, lParam1, lParamSort, szBuf1, sizeof(szBuf1) / sizeof(szBuf1[0]);
	ListView_GetItemText(Cont.ContainerhWnd, lParam2, lParamSort, szBuf2, sizeof(szBuf2) / sizeof(szBuf2[0]);

	return wcscmp(szBuf1, szBuf2);//DESCENDING ORDER
}