VB中如何用代码建立一个窗体

[simb]

VB中如何用代码建立一个窗体？？？

[啊维]

这个问题好多人问过的吧...在CSDN找找看看

[simb]

没有找到呢！！！

[daisy8675]

用api可以建，如果你要，我就找找

[onedream]

用API
CreateWindow

[simb]

多谢各位了

[daisy8675]

http://www.sijiqing.com/vbgood/forum/forum_posts.asp?TID=6537&PN=2

這個是創建窗體，完全用代碼的

http://www.imeic.net/shadow/code/form.zip

這個是最簡單的窗體，比如 可以編寫字型等

http://www.sijiqing.com/vbgood/forum/forum_posts.asp?TID=14034&PN=1

[leolan]

'code in modApi.bas

Option Explicit
' Window Functions
Public Declare Function CreateWindowEx Lib "user32" Alias "CreateWindowExA" (ByVal dwExStyle As Long, ByVal lpClassName As String, ByVal lpWindowName As String, ByVal dwStyle As Long, ByVal X As Long, ByVal Y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hWndParent As Long, ByVal hMenu As Long, ByVal hInstance As Long, lpParam As Any) As Long
Public Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hwnd As Long, ByVal MSG As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Public Declare Function LoadResImage Lib "user32" Alias "LoadImageA" (ByVal hinst As Long, ByVal lpsz As Long, ByVal un1 As Long, ByVal n1 As Long, ByVal n2 As Long, ByVal un2 As Long) As Long
Public Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long

' Message
Public Declare Function GetMessage Lib "user32" Alias "GetMessageA" (lpMsg As MSG, ByVal hwnd As Long, ByVal wMsgFilterMin As Long, ByVal wMsgFilterMax As Long) As Long
Public Declare Function TranslateMessage Lib "user32" (lpMsg As MSG) As Long
Public Declare Function DispatchMessage Lib "user32" Alias "DispatchMessageA" (lpMsg As MSG) As Long

Public Declare Function RegisterClassEx Lib "user32" Alias "RegisterClassExA" (pcWndClassEx As WNDCLASSEX) As Integer
Public Declare Function DefWindowProc Lib "user32" Alias "DefWindowProcA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Public Declare Sub PostQuitMessage Lib "user32" (ByVal nExitCode As Long)

Public Declare Function LoadCursor Lib "user32" Alias "LoadCursorA" (ByVal hInstance As Long, ByVal lpCursorName As Long) As Long

' Class Reg And Del
Public Declare Function UnregisterClass Lib "user32" Alias "UnregisterClassA" (ByVal lpClassName As String, ByVal hInstance As Long) As Long

'---------------------------------------------------------
'CreateWindowEx And Dialog Window Style
'--------------------------------------------------------
Public Const WS_MINIMIZEBOX = &H20000
Public Const WS_MAXIMIZEBOX = &H10000
Public Const WS_CAPTION = &HC00000 ' WS_BORDER Or WS_DLGFRAME
Public Const WS_OVERLAPPED = &H0&
Public Const WS_THICKFRAME = &H40000

Public Const WS_CHILD = &H40000000
Public Const WS_VISIBLE = &H10000000
Public Const WS_TABSTOP = &H10000
Public Const WS_DISABLED = &H8000000
Public Const WS_SYSMENU = &H80000
Public Const WS_POPUP = &H80000000
Public Const WS_GROUP = &H20000

Public Const WS_OVERLAPPEDWINDOW = (WS_OVERLAPPED Or WS_CAPTION Or WS_SYSMENU Or WS_THICKFRAME Or WS_MINIMIZEBOX Or WS_MAXIMIZEBOX)

' Window Message
Public Const WM_TIMER = &H113
Public Const WM_USER = &H400
Public Const WM_NOTIFY = &H4E
Public Const WM_MOUSEMOVE = &H200
Public Const WM_RBUTTONUP = &H205
Public Const WM_COMMAND = &H111
Public Const WM_ENABLE = &HA
Public Const WM_INITDIALOG = &H110
Public Const WM_PAINT = &HF
Public Const WM_CLOSE = &H10
Public Const WM_CREATE = &H1
Public Const WM_LBUTTONDOWN = &H201
Public Const WM_LBUTTONDBLCLK = &H203
Public Const WM_RBUTTONDBLCLK = &H206
Public Const WM_RBUTTONDOWN = &H204
Public Const WM_SIZE = &H5

Public Const WM_MEASUREITEM = &H2C
Public Const WM_DRAWITEM = &H2B
Public Const WM_INITMENUPOPUP = &H117
Public Const WM_DESTROY = &H2

' WNDCLASSEX
Public Const CS_HREDRAW = &H2
Public Const CS_VREDRAW = &H1
Public Const CS_DBLCLKS = &H8

' Window Color
Public Const COLOR_WINDOW = 5

' DefSystem Cursor
Public Const IDC_HAND = 32649&

' ShowWindow
Public Const SW_NORMAL = 1

Public Const IMAGE_ICON = 1

' DefSystem Cursor
Public Const IDC_ARROW = 32512&

' Reg Window
Public Type WNDCLASSEX
cbSize As Long
Style As Long
lpfnWndProc As Long
cbClsExtra As Long
cbWndExtra As Long
hInstance As Long
hIcon As Long
hCursor As Long
hbrBackground As Long
lpszMenuName As String
lpszClassName As String
hIconSm As Long
End Type

Public Type POINTAPI
X As Long
Y As Long
End Type

Public Type MSG
hwnd As Long
message As Long
wParam As Long
lParam As Long
Times As Long
pt As POINTAPI
End Type

[leolan]

'code in modMain.bas
Option Explicit

Dim lpwcx As WNDCLASSEX
Dim RegClass As Long

Public Function RegWinClass(lpClassName As String)
'蛁聊敦諳濬
With lpwcx
.cbSize = Len(lpwcx)
.Style = CS_HREDRAW Or CS_VREDRAW Or CS_DBLCLKS
.lpszClassName = lpClassName
.hInstance = App.hInstance
.cbClsExtra = 0
.cbWndExtra = 0
.hCursor = LoadCursor(0, IDC_ARROW)
.lpfnWndProc = FnPtrToLong(AddressOf MainWinProc)
.lpszMenuName = 0
.hbrBackground = COLOR_WINDOW
End With
Call RegisterClassEx(lpwcx)
End Function

Private Function MainWinProc(ByVal hwnd As Long, ByVal uMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Select Case uMsg
Case WM_DESTROY
Call PostQuitMessage(0)
End Select
MainWinProc = DefWindowProc(hwnd, uMsg, wParam, lParam)
End Function

Public Function FnPtrToLong(ByVal lngFnPtr As Long) As Long
FnPtrToLong = lngFnPtr
End Function


Public Function CreateMainForm(title As String, nWidth As Long, nHeight As Long) As Long
Dim hWndMain As Long
Dim lpMsg As MSG

Call RegWinClass("Form")
hWndMain = CreateWindowEx(0, "Form", "Windows", WS_OVERLAPPEDWINDOW, 0, 0, nWidth, nHeight, 0, 0, App.hInstance, ByVal 0&)

If hWndMain <> 0 Then
ShowWindow hWndMain, SW_NORMAL
Do While GetMessage(lpMsg, 0, 0, 0)
TranslateMessage lpMsg
DispatchMessage lpMsg
Loop
End If
UnregisterClass "Form", App.hInstance
End Function

Public Sub Main()
CreateMainForm "Windows", 500, 388
End Sub

[liyan010]

楼上的，贴code之王！