Private Declare Function GetWindowTextLength Lib "user32" Alias "GetWindowTextLengthA" (ByVal hwnd As Long) As Long Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long SendMessage EditHwnd, ES_READONLY, 1&, 0 ' read only = true SendMessage EditHwnd, ES_READONLY, 0&, 0 ' read only = false L = SendMessage(EditHwnd, WM_GETTEXTLENGTH, 0&, 0) It is not the method that I would have preferred to use, however, it accomplishes my task. Receiving string = GetWindowText(handle, S, L)Īccording to SPY++ the Edit class control does not receive the EM_GETSELTEXT or the WM_GETTEXT message.The code below retrieves the text from the Edit class control on the Windows XP calc.exe calculator every time that I press a button on my UI.
The EDIT control is the result window on the Windows XP Calculator, calc.exe. The application retrieves the text from the window under the cursor and it works on all windows with a caption or text with the exception of the EDIT control. I'm trying to retrieve the text from an EDIT control using GetWindowText and GetWindowTextLength.
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