Showing archive results for 2013

I dreamed that I finished biking home and decided not to take the stairs. Instead I took my bicycle into the elevator to go to my dream-land 31st-floor high-rise condo. (As if.) For "security reasons" there were no buttons in the elevator. You had to open a secret panel and flip a circuit-breaker switch corresponding to the floor you want to go t...

Today's Little Program draws content at a fixed screen position. The idea is that the window is really a viewport into some magical world. Unfortunately, our magical world just has a sign that says "Booga booga." Creating a more interesting magical world is left as an exercise. Start with our scratch program and make these changes: void OnMov...

For motivational purposes, let's start with a program that displays a DWM thumbnail. Start with the scratch program and add the following: #include <dwmapi.h> HWND g_hwndThumbnail; HTHUMBNAIL g_hthumb; void UpdateThumbnail(HWND hwndFrame, HWND hwndTarget) { if (g_hwndThumbnail != hwndTarget) { g_hwndThumbnail = hwndTarget; if (g...

Via their customer liaison, a customer wanted to know how to create a process that runs with the context of the user, but which the user cannot terminate without elevating to administrator. The customer is engaging in the futile arms race between programs and users (which is more properly a walls and ladders scenario). And we saw that Windows h...

Consider this code: // Code in italics is wrong foregroundThreadId = ::GetWindowThreadProcessId(::GetForegroundWindow(), 0); myThreadId = GetCurrentThreadId(); if (foregroundThreadId != myThreadId) { AttachThreadInput(foregroundThreadId, myThreadId, TRUE); BringWindowToTop(myWindowHandle); If you try to step ov...

If you hang out with designers, you may hear the word family used as a verb, usually with the adverb well. The old icons now look dated and do not family well with the Web site. We renamed the feature from Auto Shape to Instant Shape so that it families well with other features like Instant Color. The authenticity certificate on the side of the...

I dreamed that I was playing doubles tennis. My partner was Boris Becker. Our opponents were the Queen of England and a policeman on a horse. The horse served his horseshoe, which I returned poorly. As the horseshoe bounced across the ground, it made huge divots. The game was called due to poor ground conditions. The Queen played a game with the ...

Today's Little Program will show a property sheet that covers multiple files, just like the one you get from Explorer if you multi-select a bunch of files and right-click them all then select Properties. In fact, that description of how you do the operation interactively maps directly to how you do the operation programmatically! #define UNICO...

Last time, we listener for window navigations. Today we'll learn about tracking window creation and destruction. The events to listen to are the DShell­Windows­Events. The Window­Registered event fires when a new window is created, and the Window­Revoked event fires when a window is destroyed. The bad news is that the paramet...

Okay, it's been a while since we set aside our Little Program to learn a bit about connection points and using dispatch interfaces as connection point interfaces. Now we can put that knowledge to use. Internet Explorer and Explorer windows fire a group of events known as DWeb­Browser­Events, so we just need to listen on those events ...