Subj : Re: How to solve windows getting distorted after pushing up DPI settings
To   : comp.programming
From : [jongware]
Date : Wed Oct 12 2005 12:20 am

<atsharma@gmail.com> wrote in message
news:1128961893.880539.221690@g44g2000cwa.googlegroups.com...
> I am facing this problem that the windows in my application get
> distorted<The controls which usually come on them dont fit> after I
> increase system's DPI settings to maybe 120.
> I want to resolve this problem through coding(c++).
> I found a useful article for the same
>
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dngdi/html/highdpiapp.asp

The article states that standard window elements should resize themselve.
AFAIK this has never worked properly (maybe just no-one ever bothered). If
you want to resize/reposition manually you could try EnumChildWindows.
MSDN sez about this:
case WM_SIZE:   // main window changed size
            // Get the dimensions of the main window's client
            // area, and enumerate the child windows. Pass the
            // dimensions to the child windows during enumeration.
            GetClientRect(hwnd, &rcClient);
            EnumChildWindows(hwnd, EnumChildProc, (LPARAM) &rcClient);

with the EnumChildProc defined as
BOOL CALLBACK EnumChildProc(HWND hwndChild, LPARAM lParam)

cunningly using 'rcParent = (LPRECT) lParam;' to get the new dimensions so
you can MoveWindow the elements around yourself. You will have to
recalculate all new positions yourself; it may be possible to do so using
original*120/96 -- where original is your x,y,w,h. If the window is
originally created for the standard 96 dpi screen I'd guess the number 120
should actually be requested from the system, as shown in the article.

Theunis de Jong
aka [Jongware]
-- Where's my daddy?
   Is that my daddy?
   He goes, 'Bugrit! Millenniumhand and shrimp!' --

.