permanent desktop icon text color change

[sv13]

hi

i can change color with

	HWND dh = FindWindow("ProgMan",0);
	dh=GetWindow(dh,GW_CHILD);
	dh=GetWindow(dh,GW_CHILD);
            ListView_SetTextBkColor(dh, CLR_NONE);  // icon background to transparent
            ListView_SetTextColor (dh, RGB(0,255,0));  // icon text color to rgb()
            ListView_RedrawItems (dh, 0, ListView_GetItemCount(dh) - 1); // redraw all icons

everything works fine, but icon background and text color gets back to normal when i refresh desktop(F5), is there a way to change it permanent. Any registry entry where that color is stored?
my program closes itself when it gets the job done, so i cant monitor for desktop refresh and change color then.

[sv13]

ok, now tell me how can i detect desktop refresh ^^, i've been googling for hours with no success

[VladimirF]

Are you sure that only that "Refresh" command will restore original color?
Anyway, with a help from Spy++ you can see that refresh sends WM_USER+3152 message to the list view.
Now you "only" need to somehow hook into that list's window proc and monitor that message
But if you can hook into it - you might also hook into its parent and handle the custom draw messages.
But why would you want to change that color?

[hoxsiew]

How are you setting the icons? Are you using an imagelist? If so, are you using ILC_MASK with ILC_COLOR32 or ILC_COLOR24?

[sv13]

How are you setting the icons? Are you using an imagelist? If so, are you using ILC_MASK with ILC_COLOR32 or ILC_COLOR24?

don't know what are you referring to, i am talking about icons on desktop here

Are you sure that only that "Refresh" command will restore original color?

no, i am not, but its first thing i noticed

But why would you want to change that color?1888644

my wallpaper changes every few hours, and i want black icon font color on light wallpaper and
white font on dark one ^^ ofc. drop shadow is disabled

second thoughts: i will probably stick with drop shadow for now(su.x hard on white background), cause i never played with hooks and dont have much time now

[hoxsiew]

don't know what are you referring to, i am talking about icons on desktop here

Oops. For some reason I thought you were dealing with a ListCtrl. I must have confused this with another thread. Sorry.