Native Tooltips in WPF (Part 1)

View source on GitHub. <preamble> One of my hobbies is getting WPF controls to look more like their native counterparts. I’ve been shoehorning the UxTheme APIs (and older equivalents when theming is unavailable) into something that can be used by WPF over the past year or more, and I’ll write about this process at some […]

WPF ToolTip Drop Shadows in Windows 8

The standard ToolTip control template for the Windows 8 theme in WPF (‘Aero2’) has no drop shadow, whether or not the HasDropShadow property is set. The background colour and margins are also slightly off compared to the native style. The following template produces a result that’s closer to the real thing:

You’ll need to […]

Retaining DPI/PPI Information with PNGGauntlet

I’ve mentioned PNGGauntlet many times on this blog – it’s a great tool for squeezing the best compression ratios out of the PNG format. It combines the tools PNGOUT, OptiPNG and DeflOpt in a nice WinForms GUI. As part of the compression process, most chunks are removed by default. This includes the pHYs chunk, which […]

Image Background Remover Tool

View source on GitHub. Inspired by Window Clippings, my preferred screenshot tool (which unfortunately crashes a lot under Windows 8 RTM), I wrote a small program for making image backgrounds transparent. It comes with a command-line interface and a basic GUI (pictured above). The GUI supports dragging-and-dropping images, and you can switch the black and […]

Windows Update Notification Tool for Windows 8

I was apparently part of the 5.82% of Windows 7 users who preferred to be notified about updates rather than have them installed automatically. Annoyingly, Windows 8 no longer displays the familiar balloon tip and notify icon when new updates are available, instead placing a notice on the lock screen (which I almost never have […]

Pixel-perfect Multi-DPI Images in WPF (Part 3)

View source on GitHub. In Part 1 of this series, I discussed the problem of displaying different bitmap images at different DPIs in WPF. In Part 2, I proposed a solution using multi-frame TIFFs and two simple markup extensions. In this final post I will present a basic program that takes multiple images (PNG recommended), […]

Pixel-perfect Multi-DPI Images in WPF (Part 2)

View source on GitHub. See also: Part 1 and Part 3. In Part 1 of this series, I explored the issue of displaying pixel-perfect bitmap images in the Windows Presentation Foundation. In this article, I’ll describe a method of displaying different images depending on the system DPI setting using a custom Markup Extension and multi-image […]

Pixel-perfect Multi-DPI Images in WPF (Part 1)

View source on GitHub. See also: Part 2 and Part 3. I’ve written previously about DPI-awareness in the Windows Presentation Foundation and how to specify measurements in pixels rather than Device Independent Units (DIUs). Something else to consider is image scaling – unlike the Windows Ribbon control or WinRT, WPF has no in-built mechanism for […]

P/Invoke and ChooseFont (Comdlg32.dll)

Mister Goodcat wrote a good article a little while ago about using P/Invoke in Silverlight 5 to display the native font chooser dialog with the ChooseFont function. I couldn’t get the code working for a 64-bit executable, however, as the definition of the CHOOSEFONT structure on MSDN he used as a basis for the managed […]

Retrieving Windows 8 Theme Colours

See also: Windows 8 Theme Colours Reference. Windows 8 doesn’t offer developers access to system theme colours, unlike its cousin, Windows Phone. Even for a version 1 product, this seems like a strange omission. Then again, we still don’t have a working public API for retrieving the Aero glass colour (or whatever we call it […]