If you’re developing native applications for Windows using Win32 or MFC and you want to support high DPIs so that the application looks crisp on any display, you have to do a lot of things by hand. That is because the technologies for building native UIs, that is MFC, GDI, GDI+, do not provide DPI scaling support. In this article, I will walk through some of the problems of supporting DPI scaling and the solutions for them.
Tag: win32
Keyboard input and TAB navigation between WPF controls in a Win32 application
It is possible to host WPF controls in a Win32 application, and the other way around, but because of the differences betweeb these technologies there are various issues that can appear. One of these is handling of keyboard input. Without diving too much into differences between WPF and Win32, I will show how to provide…
A tale of two flags: DS_CONTROL and WS_EX_CONTROLPARENT
I recently ran into problems with an MFC application that was hosting some Windows Form user control in a modal dialog; the application hanged after it lost focus. The problem was the window received WM_GETDLGCODE message in an infinite loop making it impossible to handle anything else. After a lot of digging, I found that…
Windows Runtime
Windows Runtime, or shortly WinRT, is a new runtime (siting on top of the Windows kernel) that allows developers to write Metro style applications for Windows 8, using a variety of languages including C/C++, C#, VB.NET or JavaScript/HTML5. Microsoft has started rolling out information about Windows 8 and the new runtime at BUILD. WinRT is…