Get window size via Windows Messaging?

[Evan1993]

Is there any way to retrieve a windows size with via SendNotifyMessage(or others..) ? I could not find any that would return the window size, only change it.

 

[MB34]

You use SetWindowPos function to set a window's size. There is no message to do it.

 

[MB34]

To GET the window size, use the GetWindowPlacement function or hook the WM_GETMINMAXINFO or WM_WINDOWPOSCHANGING notification messages.

 

[Evan1993]

I don't want to set a windows size, I want to get its size.

I wanted to know if there was any windows message that would return a windows size.

I need it doesn't have to be a windows message, but it has to be able to get the sizes of other progams windows besides my app. Edit Didn't see other post, h/o

 

[Evan1993]

>To GET the window size, use the GetWindowPlacement function
I'm having trouble getting this to work--It keeps returning 0,0 though. (and randomly says something like "attept to read or write protected memory")

Heres my code atm.

    'UPGRADE_WARNING: Structure WINDOWPLACEMENT may require marshalling attributes to be passed as an argument in this Declare statement. Click for more: 'ms-help://MS.VSCC.v90/dv_commoner/local/redirect.htm?keyword="C429C3A5-5D47-4CD9-8F51-74A1616405DC"'
'Upgraded from Vb 6
    Public Declare Function GetWindowPlacement Lib "user32" (ByVal hwnd As Integer, ByRef lpwndpl As WINDOWPLACEMENT) As Integer

  Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim struct As New WINDOWPLACEMENT
        Try
            GetWindowPlacement(CInt(AppDomain.GetCurrentThreadId()), struct)
            Messages.Text += vbCrLf & struct.rcNormalPosition.X
            Messages.Text += vbCrLf & struct.rcNormalPosition.Y
            Messages.Text += vbCrLf & GetLastError()
        Catch x As Exception
            MessageBox.Show(x.Message)
        End Try
    End Sub

 

[JohnH]

Use GetWindowRect function.

Declare Function GetWindowRect Lib "user32.dll" ( _ 
	 ByVal hwnd As Int32, _ 
	 ByRef lpRect As RECT) As Int32

Structure RECT
	Public Left As Int32
	Public Top As Int32
	Public Right As Int32
	Public Bottom As Int32
End Structure

 

[MB34]

Yes, I forgot about GetWindowRect. You can use it to get any window's size knowing the handle.