Salve,
ho un problema che nn riesco a risolvere sto provando a verificare lo stato di una finestra conoscendone l'handle, riporto qui sotto il codice. Il problema è che la
GetWindowPlacement mi restituisce sempre ZERO, ossia un errore
la api getlasterror mi da errore numero 126)
Qualcuno sa indicarmi l'errore se c'è ? O come posso fare per verificare lo stato di una finestra partendo dal suo handle ?
Grazie mille !!
Ciao![]()
codice:Public Class Form1 Inherits System.Windows.Forms.Form Public Structure RECT Dim Left As Integer Dim Top As Integer Dim Right As Integer Dim Bottom As Integer End Structure Public Structure POINTAPI Dim x As Integer Dim y As Integer End Structure Public Structure WINDOWPLACEMENT Dim Length As Integer Dim flags As Integer Dim showCmd As Integer Dim ptMinPosition As POINTAPI Dim ptMaxPosition As POINTAPI Dim rcNormalPosition As Rect End Structure Public Declare Function GetWindowPlacement Lib "user32" Alias "GetWindowPlacement" (ByVal hwnd As Integer, ByVal lpwndpl As WINDOWPLACEMENT) As Integer Public Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Integer Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim handle As Long Dim WinEst As WINDOWPLACEMENT Dim rtn As Long handle = (FindWindow(Nothing, "Senza nome - Blocco note")) MsgBox("find : " & handle) WinEst.Length = Len(handle) rtn = GetWindowPlacement(handle, WinEst) MsgBox("Ritorna : " & rtn) End Sub End Class

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