user32

问题 I'm about to replace a standard edit control with a dropdown type combo box. So basically that combobox bahaves like exactly like an edit control. Everything works fine so far but there is just one notable difference: When you click on the edit control containing already some text and that doesn't have the focus, the cursor is simply positioned where you click. But when you click on a the combo box containing already some text and that doesn't have the focus, the whole text is selected. This

问题 I am attempting to retrieve information on all the various monitors (and their adapters) present on a system. So far, my attempts at using EnumDisplayDevices to list all the monitors has worked great - it found two, the first being "\\.\DISPLAY1\Monitor0" (the second is just 2 and 1, respectively, but it's irrelevant to this question). Anyway, I then attempted to call EnumDisplaySettingsEx on it, passing the name of the monitor as above, but it always fails. Calls with a null name parameter

问题 I am attempting to retrieve information on all the various monitors (and their adapters) present on a system. So far, my attempts at using EnumDisplayDevices to list all the monitors has worked great - it found two, the first being "\\.\DISPLAY1\Monitor0" (the second is just 2 and 1, respectively, but it's irrelevant to this question). Anyway, I then attempted to call EnumDisplaySettingsEx on it, passing the name of the monitor as above, but it always fails. Calls with a null name parameter

问题 I'm in a research to find a way to take a screenshot of a window using Node.js, and I'm trying to do this with node-ffi, but I don't know how... at a time I'm stuck here: var ffi = require('ffi'); var user32 = new ffi.Library("user32", { FindWindowA: [ 'uint32' , [ 'string', 'string' ]] , PrintWindow: [ 'int32' , [ 'int32', 'string', 'int32' ]] }); var IMG; var windowHandle = user32.FindWindowA(null, "Calculator"); var printWin = user32.PrintWindow(windowHandle, IMG, 0); console.log(printWin)

问题 I have the following code that seems to work on one of my projects but it doesn't work on a different one. Code is exactly the same on both but the method EnumWindow never gets executed. Here is the code: [System.Runtime.InteropServices.DllImport("user32.dll", CharSet = System.Runtime.InteropServices.CharSet.Auto)] public static extern Int32 GetClassName(IntPtr hWnd, StringBuilder StrPtrClassName, Int32 nMaxCount); [System.Runtime.InteropServices.DllImport("user32")] [return: System.Runtime

问题 I have used the code supplied in the following CodeProject article in the past with success, but it only seems to partially work on Vista/7 (I'm guessing because of UAC). It works for the current thread, but it doesn't pick up system wide activity. I've tried adding requireAdministrator in the manifests and signing both the unmanaged and managed assemblies, and that doesn't appear to help. Using Window Messages to Implement Global System Hooks in C# My main goal is to use SetWindowsHookEx to

问题 When I run the code below for the GetWindowText I get the following error thrown as an inner Exception: {"Attempted to read or write protected memory. This is often an indication that other memory is corrupt."} [DllImport("user32.dll", EntryPoint = "GetWindowTextLength", SetLastError = true)] internal static extern int GetWindowTextLength(IntPtr hwnd); [DllImport("user32.dll", EntryPoint = "GetWindowText", SetLastError = true)] internal static extern int GetWindowText(IntPtr hwnd, ref

问题 I tried: To add user32.dll from Reference Manager , and imported it from Windows\System32\user32.dll , I got Error Message : A reference to 'C:\Windows\System32\user32.dll couldn't be added. Please make sure that the file is accessible, and that it is a valid assembly or COM component. using System.Runtime.InteropServices; [DllImport("user32")] To launch Visual Studio as Administrator Nothing works... it goes on my nerves I am trying 2 hours to import this damn .dll... 回答1: You do not need to

问题 I read this answer Link It is exactly what i tring to do,i need to send postmessage Alt+'E' to winApp but it's not working i used Spy++ and duplicate Wparametr and Lparametr and build it with postmessage. I did the same but i can't get the Alt+E action. Any one know where is my misstake? How to get Alt+E event/action form windows application? Here Spy++ the first 5 rows i pressed and the second is my code.(see the diffrance in Lparametrs and extend and AltDown) In Img you can see that my code

问题 I'm trying to grab a window by the process name and focus it, then take a screenshot of it. It works perfectly unless I have Teamviewer open (not even while using teamviewer to screenshare, just when teamviewer is running) When teamviewer is running the window isn't focused or brought to the foreground, and the rect it screenshots is very small (33x21) where normally it would be 1600x900. Here is the code in question: proc = Process.GetProcessesByName(procName)[0]; SetForegroundWindow(proc