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vb_code1
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msg_spy
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spydemo.frm
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1994-05-26
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11KB
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340 lines
VERSION 2.00
Begin Form frmMsgSpyDemo
BackColor = &H00C0C0C0&
BorderStyle = 1 'Fixed Single
Caption = "Message Spy Custom Control Demo"
ClientHeight = 4725
ClientLeft = 495
ClientTop = 1590
ClientWidth = 5370
Height = 5160
Icon = SPYDEMO.FRX:0000
Left = 420
LinkTopic = "Form2"
ScaleHeight = 315
ScaleMode = 3 'Pixel
ScaleWidth = 358
Tag = "This is the main form."
Top = 1230
Width = 5520
Begin CommandButton Command1
Caption = "Command btn"
Height = 375
Left = 540
TabIndex = 1
Tag = "This is a command button."
Top = 540
Width = 1635
End
Begin Frame fraStatusArea
BackColor = &H00C0C0C0&
Height = 1572
Left = 120
TabIndex = 10
Tag = "This is the status area frame."
Top = 3000
Width = 5112
Begin CheckBox chkSpyingEnabled
BackColor = &H00C0C0C0&
Caption = "&Spying Enabled"
Height = 252
Left = 240
TabIndex = 11
Tag = "Check to enable spying."
Top = 240
Value = 1 'Checked
Width = 1752
End
Begin Label lblControlTag
Alignment = 2 'Center
BackStyle = 0 'Transparent
BorderStyle = 1 'Fixed Single
FontBold = 0 'False
FontItalic = 0 'False
FontName = "MS Sans Serif"
FontSize = 8.25
FontStrikethru = 0 'False
FontUnderline = 0 'False
Height = 252
Left = 240
TabIndex = 12
Top = 660
Width = 4572
End
Begin Label lblMessage
Alignment = 2 'Center
BackStyle = 0 'Transparent
BorderStyle = 1 'Fixed Single
FontBold = 0 'False
FontItalic = 0 'False
FontName = "MS Sans Serif"
FontSize = 8.25
FontStrikethru = 0 'False
FontUnderline = 0 'False
Height = 252
Left = 240
TabIndex = 13
Top = 1080
Width = 2652
End
Begin Label lblXPos
Alignment = 2 'Center
BackStyle = 0 'Transparent
BorderStyle = 1 'Fixed Single
FontBold = 0 'False
FontItalic = 0 'False
FontName = "MS Sans Serif"
FontSize = 8.25
FontStrikethru = 0 'False
FontUnderline = 0 'False
Height = 252
Left = 3120
TabIndex = 14
Top = 1080
Width = 732
End
Begin Label lblYPos
Alignment = 2 'Center
BackStyle = 0 'Transparent
BorderStyle = 1 'Fixed Single
FontBold = 0 'False
FontItalic = 0 'False
FontName = "MS Sans Serif"
FontSize = 8.25
FontStrikethru = 0 'False
FontUnderline = 0 'False
Height = 252
Left = 4080
TabIndex = 15
Top = 1080
Width = 732
End
End
Begin Frame Frame1
BackColor = &H00C0C0C0&
Caption = "Frame"
Height = 2772
Left = 2700
TabIndex = 9
Tag = "This is a frame."
Top = 120
Width = 2052
Begin CheckBox Check1
BackColor = &H00C0C0C0&
Caption = "Check Box"
Height = 312
Left = 300
TabIndex = 5
Tag = "This is the first check box."
Top = 360
Width = 1572
End
Begin CheckBox Check2
BackColor = &H00C0C0C0&
Caption = "Check Box"
Height = 312
Left = 300
TabIndex = 6
Tag = "This is the second check box."
Top = 960
Width = 1572
End
Begin OptionButton Option4
BackColor = &H00C0C0C0&
Caption = "Radio button"
Height = 375
Left = 300
TabIndex = 8
Tag = "This is the second radio button in the frame."
Top = 2220
Width = 1455
End
Begin OptionButton Option3
BackColor = &H00C0C0C0&
Caption = "Radio button"
Height = 375
Left = 300
TabIndex = 7
Tag = "This is the first radio button in the frame."
Top = 1560
Value = -1 'True
Width = 1455
End
End
Begin MsgSpy MsgSpy1
Left = 2160
MessageNumber = 1024
SpyMode = 0 'All Messages
Tag = "This is a Message Spy control!"
Top = 1440
End
Begin OptionButton Option2
BackColor = &H00C0C0C0&
Caption = "Radio button"
Height = 375
Left = 540
TabIndex = 3
Tag = "This is the second radio button."
Top = 1620
Width = 1455
End
Begin TextBox Text1
Height = 285
Left = 540
TabIndex = 0
Tag = "This is a text box."
Text = "Text box"
Top = 120
Width = 1635
End
Begin ListBox List1
Height = 810
Left = 540
TabIndex = 4
Tag = "This is a list box."
Top = 2160
Width = 1635
End
Begin OptionButton Option1
BackColor = &H00C0C0C0&
Caption = "Radio button"
Height = 375
Left = 540
TabIndex = 2
Tag = "This is the first radio button."
Top = 1080
Value = -1 'True
Width = 1455
End
End
'-------------------------------------------------
'
' SpyDemo - a Message Spy Custom Control demo
'
' Note the possible uses of the following
' properties within the MsgReceieved event:
'
' MessageName - the name of the message
' IsControl - whether message is for a control
' Control - the actual subclassed control!!!
' ControlName - the subclassed control's name
' IsForm - whether message is for a form
' Form - the actual subclassed form!!!
' FormName - the subclassed form's name
' HIWORD - like HIWORD(LParam) in C/C++
' LOWORD - like LOWORD(LParam) in C/C++
'
' Copyright (c) 1992-1994 Anton Software Limited.
'
'-------------------------------------------------
Option Explicit
' Const WM_SETFOCUS = &H7
' Const WM_MOUSEMOVE = &H200
'
' These constants are not needed, as the message
' name is provided directly. Nevertheless, for
' production code, or if performance is a major
' issue, it would be better to use them instead.
'
' e.g.
'
' If (Msg = WM_SETFOCUS) Then
'
' instead of
'
' If (MsgSpy1.MessageName = "WM_SETFOCUS") Then
Sub chkSpyingEnabled_Click ()
' Enable/disable the Message Spy control.
MsgSpy1.Enabled = chkSpyingEnabled.Value
End Sub
Sub Form_Load ()
' Handle controls without hWnd properties.
On Error GoTo Handler
' Subclass ALL the other controls on the form.
Dim i As Integer
For i = 0 To controls.Count - 1
MsgSpy1 = controls(i).hWnd
Next i
' Subclass the form itself.
MsgSpy1 = frmMsgSpyDemo.hWnd
Exit Sub
Handler:
' Labels (etc.) don't have window handles!
Resume Next
End Sub
Sub MsgSpy1_MsgReceived (hWnd As Integer, Msg As Integer, WParam As Integer, LParam As Long)
' The control or form name and tag.
Dim WindowName As String
Dim WindowTag As String
' Save the message name.
Dim MessageName As String
MessageName = MsgSpy1.MessageName
' If the message is for a control...
If MsgSpy1.IsControl Then
' Save the control's name.
WindowName = MsgSpy1.ControlName
' Process the message...
Select Case MessageName
Case "WM_SETFOCUS"
' Got focus message.
SetLabel lblMessage, WindowName & " got focus"
Case "WM_MOUSEMOVE"
' Save the control's tag.
WindowTag = MsgSpy1.Control.Tag
End Select
Else ' MsgSpy1.IsForm = True
' Save the form's name and tag.
WindowName = MsgSpy1.FormName
WindowTag = MsgSpy1.Form.Tag
End If
' If the mouse is over the control/form...
If (MessageName = "WM_MOUSEMOVE") Then
' Display the control's/form's name and the
' mouse coordinates.
SetLabel lblMessage, "Mouse is over " & WindowName
SetLabel lblXPos, Str$(MsgSpy1.LOWORD)
SetLabel lblYPos, Str$(MsgSpy1.HIWORD)
' Display the control's/form's tag.
SetLabel lblControlTag, WindowTag
End If
End Sub
Sub SetLabel (LabelControl As Label, ByVal LabelCaption As String)
If (LabelControl.Caption <> LabelCaption) Then
LabelControl.Caption = LabelCaption
End If
End Sub
