VB下制作截屏小程序
如何在VB下制作一个截屏的小程序，类似QQ截图的，有会做的大侠麻烦发一个来，万分感谢！！！ 网上有不少的代码吧，一搜就应该搜到了…………http://hi.baidu.com/zmh886/item/043eb0ba5d16daadeaba93d5
http://www.veryhuo.com/down/html/29988.html
可以实现功能了，但是不能随心所欲的调用，而且运行时自动开启截屏也不好，能改成快捷键调用的方式吗？ “关键代码”都已经有了。
要想改成“按别的方式来调用”，还不容易吗？
google VB6 热键
http://download.csdn.net/detail/lemon_zhu/1694302
http://download.csdn.net/detail/ixiaokangoks/3299168
东西下载了，不会用啊，都是英文的，这是定义热键的程序吗？
象你这样，不动下脑筋，有代码也看不懂，恐怕难以得到快速长进啊…………给你一个使用热键的示例。
新建一个 标准EXE工程，窗口内画一个 CommandButton 。 再添加一个标准模块。
运行后，窗口是隐藏的，按 Ctrl+F12 显示窗口。 点击Command1隐藏窗口。
程序易做图注册了两个热键，Ctrl+F12 和 Ctrl+U 。
注意，用了HOOK，你调试运行时，一定要通过关闭窗口来结束程序，不点直接点停止。
代码如下：
' 窗体代码：
Option Explicit
Private Declare Function RegisterHotKey Lib "User32" (ByVal hWnd As Long, ByVal ID As Long, _
ByVal fsModifiers As Long, ByVal vk As Long) As Long
Private Declare Function UnregisterHotKey Lib "User32" (ByVal hWnd As Long, ByVal ID As Long) As Long
Private Const MOD_CONTROL As Long = 2
Private Sub Command1_Click()
Me.Hide
End Sub
Private Sub Form_Load()
Dim lKeyFlag As Long
Call HOOK(hWnd)
' 注册热键并标志是否成功
lKeyFlag = RegisterHotKey(hWnd, 1, MOD_CONTROL, vbKeyF12) ' Ctrl + F12
lKeyFlag = lKeyFlag * 2 + RegisterHotKey(hWnd, 2, MOD_CONTROL, vbKeyU) ' Ctrl + U
If (lKeyFlag = 3) Then
Me.Visible = False
Else
MsgBox "注册热键失败！", 48
End If
End Sub
Private Sub Form_Unload(Cancel As Integer)
Call UnHOOK(hWnd)
Call UnregisterHotKey(hWnd, 1)
Call UnregisterHotKey(hWnd, 2)
End Sub
' 标准模块代码：
Option Explicit
Private Declare Function CallWindowProc Lib "User32" Alias "CallWindowProcW" ( _
ByVal lppreWinProc As Long, _
ByVal hWnd As Long, ByVal Msg As Long, _
ByVal wParam As Long, ByVal lParam As Long) As Long
Private Declare Function GetWindowLong Lib "User32" Alias "GetWindowLongW" ( _
ByVal hWnd As Long, ByVal nIndex As Long) As Long
Private Declare Function SetWindowLong Lib "User32" Alias "SetWindowLongW" ( _
ByVal hWnd As Long, ByVal nIndex As Long, _
ByVal dwNewLong As Long) As Long
Private Const WM_HOTKEY As Long = &H312
Private Const GWL_WNDPROC As Long = -4
Private preWinProc As Long
'Private mlHookWnd As Long
Public Sub HOOK(hWnd As Long)
preWinProc = GetWindowLong(hWnd, GWL_WNDPROC)
Call SetWindowLong(hWnd, GWL_WNDPROC, AddressOf WndProc)
End Sub
Public Sub UnHOOK(hWnd As Long)
Call SetWindowLong(hWnd, GWL_WNDPROC, preWinProc)
End Sub
' * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
'热键拦截过程
Private Function WndProc(ByVal hWnd As Long, ByVal Msg As Long, _
ByVal wParam As Long, ByVal lParam As Long) As Long
If (WM_HOTKEY = Msg) Then ' 热键消息
Call HotKeyDone(wParam)
End If
WndProc = CallWindowProc(preWinProc, hWnd, Msg, wParam, lParam)
End Function
Private Sub HotKeyDone(KeyID)
If (KeyID > 2) Then Exit Sub
If (KeyID = 1) Then
Form1.Visible = True
Else
MsgBox "执行功能２……", vbInformation
End If
End Sub
第一个是控件，直接拿来用就可以了。 话说你从头到尾都是不会。真让人沮丧。
补充：VB , 控件
