Caros amigos, necessito de uma rotina q trava o form para ficar com o tamanho de 800x600, isso travado..!!!

Se eu entendi voce coloca a propriedade BORDESTYLE = 1 (FIXE SINGLE). Ela vai ficar com o tamanha que voce definir sem que o usuario possa alterar.

 

Depois basta colocar o width e heigth com o tamanho que voce quer ou simplesmente abra a janela (clicando e arrastando) para que ela fique no tamanho desejado. Isso dentro do VB é claro.

Num módulo:

 

Public Sub ChangeRes(iWidth As Single, iHeight As Single)
Dim DevM As DEVMODE
Dim a As Boolean
Dim I As Long
Dim b As Long
    I = 0
    Do
        a = EnumDisplaySettings(0&, I&, DevM)
        I = I + 1
    Loop Until (a = False)
    DevM.dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT
    DevM.dmPelsWidth = iWidth
    DevM.dmPelsHeight = iHeight
    b = ChangeDisplaySettings(DevM, 0)
End Sub

 

no form principal:

 

Private Sub Form_Load()
      Call ChangeRes(800, 600)
End Sub

 

 

Recebi o seu mail, mas a resposta foi resusada, por isso, aqui vai o módulo completo:

 

Option Explicit

Global Sistema As Variant

Private Declare Function EnumDisplaySettings Lib _
"user32" Alias "EnumDisplaySettingsA" _
(ByVal lpszDeviceName As Long, ByVal _
iModeNum As Long, lpDevMode As Any) As _
Boolean

Private Declare Function ChangeDisplaySettings Lib _
"user32" Alias "ChangeDisplaySettingsA" _
(lpDevMode As Any, ByVal dwflags As Long) _
As Long

'Declarações Gerais

Private Const CCDEVICENAME = 32
Private Const CCFORMNAME = 32
Private Const DM_PELSWIDTH = &H80000
Private Const DM_PELSHEIGHT = &H100000

Private Type DEVMODE
dmDeviceName As String * CCDEVICENAME
dmSpecVersion As Integer
dmDriverVersion As Integer
dmSize As Integer
dmDriverExtra As Integer
dmFields As Long
dmOrientation As Integer
dmPaperSize As Integer
dmPaperLength As Integer
dmPaperWidth As Integer
dmScale As Integer
dmCopies As Integer
dmDefaultSource As Integer
dmPrintQuality As Integer
dmColor As Integer
dmDuplex As Integer
dmYResolution As Integer
dmTTOption As Integer
dmCollate As Integer
dmFormName As String * CCFORMNAME
dmUnusedPadding As Integer
dmBitsPerPel As Integer
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFrequency As Long
End Type

Type str_DEVMODE
    RGB As String * 94
End Type

Public Sub ChangeRes(iWidth As Single, iHeight As Single)
Dim DevM As DEVMODE
Dim a As Boolean
Dim I As Long
Dim b As Long
    I = 0
    Do
        a = EnumDisplaySettings(0&, I&, DevM)
        I = I + 1
    Loop Until (a = False)
    DevM.dmFields = DM_PELSWIDTH Or DM_PELSHEIGHT
    DevM.dmPelsWidth = iWidth
    DevM.dmPelsHeight = iHeight
    b = ChangeDisplaySettings(DevM, 0)
End Sub

 

As minhas desculpas.