Move notifies around to match native

[Vitaliy Margolen]

Thursday, April 14, 2005, 11:50:50 AM, you wrote:
> Vitaliy Margolen wrote:
>>Tuesday, April 12, 2005, 10:57:02 PM, you wrote:
>>  
>>
>>>On Tue, Apr 12, 2005 at 04:13:32PM -0600, Vitaliy Margolen wrote:
>>>    
>>>
>>>>Well, yes and no. This is custom draw callback/notify. It shouldn't change
>>>>control's parameters, such as color. At least on a permanent basis. This is what
>>>>set color messages for.
>>>>      
>>>>
>>>Agreed. But judging by what listview is doing, we do need to use them when
>>>we are drawing the item (or whatever). But I agree, we must not change
>>>those parameters permanently.
>>>    
>>>
>>
>>Ok, I need help here. I spend half a day trying to fix this. I moved send notify
>>after color and font setup in TREEVIEW_DrawItem. It's getting closer to native.
>>But! No matter what I try, I can't set background color from within Delphi App
>>on DrawItemNotify. Which does work on windows.
>>
>>Am I missing something? I changed text mode to opaque, so it should use current
>>brush color for background. But when I printing GetDCBrushColor it stays the
>>same! Could we have a problem somewhere in GDI?
>>  
>>

> It seems fairly simple to me. You need to make a note of what the app 
> changed the nmtvcd.clrTextBk field to (I do this in the toolbar control 
> by passing the notify structure around), and then changes some lines in 
> TREEVIEW_DrawItem:
>             hbrBk = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
->>
>             if (nmtvcd->clrTextBk != CLR_NONE)
>                 hbrBk = CreateSolidBrush(nmtvcd->clrTextBk);
>             else
>                 hbrBk = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));

> and then further down:
>         if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == 
infoPtr->>hotItem))
->>
>         if (nmtvcd->clrTextBk != CLR_NONE)
>             hbrBk = CreateSolidBrush(nmtvcd->clrTextBk);
>         if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (wineItem == 
infoPtr->>hotItem))

Thank you! One thing I can't understand is why I couldn't see those changes
directly in DC? Unless there are something more going on inside Delphi
components.
Any way, thanks for you help, patch in a queue.