![]() ![]() However, GetWindowText cannot retrieve the text of a control in another application, If the target window is owned by the current process, GetWindowText causes a WMGETTEXT message to be sent to the specified window or control. If the specified window is a control, the text of the control is copied. Now, since your C++ code is already Windows-specific, that should not be a problem.Īnd, anyway, IMO the standard should be fixed to allow something like overwriting the terminating NUL with another NUL a valid well-defined operation. Copies the text of the specified window's title bar (if it has one) into a buffer. However, GetWindowText cannot retrieve the text of a control in another application. ![]() ![]() ![]() However, it seems to work just fine in Visual Studio (tested on both 20). Copies the text of the specified window's title bar (if it has one) into a buffer. However, note that overwriting the NUL terminator in STL strings with another NUL terminator seems to be "undefined behavior", at least according to this discussion on Stack"" This approach is more efficient than having a separate std::vector for buffer allocation, with a separate dynamic memory allocation, and then a deep-copy into the std::wstring. However, you have to pass the whole destination buffer length (*including* the terminating NUL) to GetWindowText() as third parameter. Note that the length value returned by GetWindowTextLength() excludes the terminating NUL. Str.resize(len) // make enough room in string Something like this: int len = GetWindowTextLength(hwnd) nCount GetWindowText (hWnd, lpString, nMaxCount - 1) ' WIN32 native call MsgBox (lpString) If InStr (lpString.ToUpper (), SearchString.ToUpper) Then FoundHWnd hWnd WindowEnumerationCallback True End If End Function Private Sub Form1Load (ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase. Then how are you supposed to get any window text ?Īn option would be to make enough room inside the string for storing text in it. L GetWindowText (HWnd, WinText, 255) WinText Left (WinText, InStr (1, WinText, vbNullChar) - 1) Debug. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |