Since GDI forms on Delphi don’t support alpha channels (unless using alpha layered windows, which might not be suitable), commonly the black color will be taken as the transparent one, unless the component supports alpha channels. tl;dr Just use your TTransparentCanvas class, .Rectangle(0,0,Width+1,Height+1,222), using the color obtained with DwmGetColorizationColor that you could blend with a … Read more
Short answer No, SOCKETs should not be marked inheritable. When certain Layered Service Providers (LSPs) are installed, the inherited handles simply can’t be used in the child. As an added irritation, see the related issue “Can TCP SOCKETS be marked non-inheritable?”. Briefly, you can’t rely on being able to inherit the sockets, but nor can … Read more
If your main function is being called from the C runtime library, then exiting will result in a call to ExitProcess() and the process will exit. If your main function is being called directly by Windows, as may well be the case with assembly code, then exiting will only cause the thread to exit. The … Read more
The following commands dumps the direct dependencies of some.exe : dumpbin /imports some.exe It works on DLLs too. This won’t list dependencies such as plugins loaded at application launch (via LoadLibrary calls). Same for COM dependencies since they work the same way (as far as I know). If you need to know all the DLLs … Read more
Edit 2. There is even a better way for doing fullscreen, the chromium way, source taken from here: http://src.chromium.org/viewvc/chrome/trunk/src/ui/views/win/fullscreen_handler.cc?revision=HEAD&view=markup void FullscreenHandler::SetFullscreenImpl(bool fullscreen, bool for_metro) { ScopedFullscreenVisibility visibility(hwnd_); // Save current window state if not already fullscreen. if (!fullscreen_) { // Save current window information. We force the window into restored mode // before going fullscreen … Read more
Here’s the answer I was looking for, based on comments by IInspectable and andlabs (many thanks): import ctypes # Query DPI Awareness (Windows 10 and 8) awareness = ctypes.c_int() errorCode = ctypes.windll.shcore.GetProcessDpiAwareness(0, ctypes.byref(awareness)) print(awareness.value) # Set DPI Awareness (Windows 10 and 8) errorCode = ctypes.windll.shcore.SetProcessDpiAwareness(2) # the argument is the awareness level, which can be … Read more
This example shows how to go directly to the Windows API and not link in the C Standard Library. global _main extern _GetStdHandle@4 extern _WriteFile@20 extern _ExitProcess@4 section .text _main: ; DWORD bytes; mov ebp, esp sub esp, 4 ; hStdOut = GetstdHandle( STD_OUTPUT_HANDLE) push -11 call _GetStdHandle@4 mov ebx, eax ; WriteFile( hstdOut, message, … Read more
In C/C++ LONG lStyle = GetWindowLong(hwnd, GWL_STYLE); lStyle &= ~(WS_CAPTION | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_SYSMENU); SetWindowLong(hwnd, GWL_STYLE, lStyle); WS_CAPTION is defined as (WS_BORDER | WS_DLGFRAME). You can get away with removing just these two styles, since the minimize maximize and sytem menu will disappear when the caption disappears, but it’s best to … Read more
x86 does not require alignment for a lock cmpxchg instruction to be atomic. However, alignment is necessary for good performance. This should be no surprise, backward compatibility means that software written with a manual from 14 years ago will still run on today’s processors. Modern CPUs even have a performance counter specifically for split-lock detection … Read more
EnumWindows enumerates all the top level windows in a process. GetWindowThreadProcessId gets the process and Id of each thread. You now have enough information to gracefully close any GUI application. You can send WM_CLOSE messages to any window you wish to close. Many windows handle WM_CLOSE to prompt the user to save documents.You can send … Read more