I downloaded and made use of your SendKeys class for a project in one of my courses. Here is the post where I should have put it: Toggling the Num Lock, Caps Lock, and Scroll Lock keys.Fixed a bug in StringToVKey() that caused the search for RIGHTPAREN to be matched as RIGHT. Fixed code in AppActivate that allowed to pass both NULL windowTitle/windowClass.Added CarryDelay() and now delay works properly with all keys.Added number of times specifier to special keys.If you want to send modifier keys such as the SHIFT, ALT, CONTROL or WINKEY keys in addition to normal keys, you might want to use any of the characters defined in Table 3.įor example, if you want to send "A" you usually press Shift+A, which is equivalent to sending these key strokes: "+a", similarly to send the "~" you would press Shift+` which is equivalent to key strokes "+`" or simply "įor more examples see the accompanying sample code. Naturally to represent a string of characters just pass them in order as "hello". For example, to represent the letter 'a', pass in the string "a" to the method. To specify a single keyboard character, use the character itself. So if you used C#'s SendKeys.Send() or VB's before then using CSendKeys becomes easier.Įach key is represented by one or more characters. Sk.SendKeys( " is designed in a way to maintain certain compatibility with C#'s SendKeys while also adding more functionality. Here is a small snippet that allows you to send the ALT-TAB sequence: When you send a key, it will be depressed until you send it again with the KEYEVENTF_KEYUP flag. Normal characters are translated into virtual keys using the VkKeyScan() which takes a CHAR and returns a WORD denoting a VK. In brief, it allows you to send a virtual key, defined in winuser.h as VK_XXX, and a flag which denotes a KeyDown, KeyUp or state to tell if the VKey is an extended key or not. The keybd_event() produces a keystroke, however the keyboard driver's interrupt handles the calls to this function, which means we can send almost any key combination with less limitations. The core functionality of sending keys in CSendKeys revolves around the usage of the keybd_event() Win32 API function. The remainder of the article will explain the concept of sending keys in Win32 and will show you how to use the code in order to send keys in just two lines of code! Since I know Delphi and wanted this same functionality in C++, I decided to port and enhance the code to make it fit my needs. However, one of the search results returned sndkeys32.pas which is a Delphi code version of the SendKeys() written by Ken Henderson back in 1995. One day I needed to send keys to another application in order to automate a task from my C++ program, but after some research, I found no easy way to do that in C++ and all what was found is reference to VB's or C#'s SendKeys.
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