如何设定按钮上文字的颜色？
如何设定按钮上文字的颜色？ 问题点数：20、回复次数：6Top
1 楼zq972（最近不想写代码，好累~~~~）回复于 2005-08-02 16:14:20 得分 5
vb本身的command button没有这个功能
1.去网上搜个button替代本身的command button
2.用command button＋label实现Top
2 楼moonz（追梦人：向星星迈进）回复于 2005-08-02 19:32:54 得分 0
ForeColor属性呢？Top
3 楼province_（雍昊）回复于 2005-08-02 19:49:15 得分 0
使用USER OWNER BUTTON就可以做你想做的任何效果了。Top
4 楼libralibra（食食物者为俊杰: U don't try, U don't know）回复于 2005-08-02 20:09:46 得分 10
添加模块modExtButton.bas
'==================================================================
Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
Private Declare Function GetParent Lib "user32" _
(ByVal hWnd As Long) As Long
Private Declare Function GetWindowLong Lib "user32" Alias _
"GetWindowLongA" (ByVal hWnd As Long, _
ByVal nIndex As Long) As Long
Private Declare Function SetWindowLong Lib "user32" Alias _
"SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long, _
ByVal dwNewLong As Long) As Long
Private Const GWL_WNDPROC = (-4)
Private Declare Function GetProp Lib "user32" Alias "GetPropA" _
(ByVal hWnd As Long, ByVal lpString As String) As Long
Private Declare Function SetProp Lib "user32" Alias "SetPropA" _
(ByVal hWnd As Long, ByVal lpString As String, _
ByVal hData As Long) As Long
Private Declare Function RemoveProp Lib "user32" Alias _
"RemovePropA" (ByVal hWnd As Long, _
ByVal lpString As String) As Long
Private 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
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" _
(Destination As Any, Source As Any, ByVal Length As Long)
'Owner draw constants
Private Const ODT_BUTTON = 4
Private Const ODS_SELECTED = &H1
'Window messages we're using
Private Const WM_DESTROY = &H2
Private Const WM_DRAWITEM = &H2B
Private Type DRAWITEMSTRUCT
CtlType As Long
CtlID As Long
itemID As Long
itemAction As Long
itemState As Long
hwndItem As Long
hDC As Long
rcItem As RECT
itemData As Long
End Type
Private Declare Function GetWindowText Lib "user32" Alias _
"GetWindowTextA" (ByVal hWnd As Long, ByVal lpString As String, _
ByVal cch As Long) As Long
'Various GDI painting-related functions
Private Declare Function DrawText Lib "user32" Alias "DrawTextA" _
(ByVal hDC As Long, ByVal lpStr As String, ByVal nCount As Long, _
lpRect As RECT, ByVal wFormat As Long) As Long
Private Declare Function SetTextColor Lib "gdi32" (ByVal hDC As Long, _
ByVal crColor As Long) As Long
Private Declare Function SetBkMode Lib "gdi32" (ByVal hDC As Long, _
ByVal nBkMode As Long) As Long
Private Const TRANSPARENT = 1
Private Const DT_CENTER = &H1
Public Enum TextVAligns
DT_VCENTER = &H4
DT_BOTTOM = &H8
End Enum
Private Const DT_SINGLELINE = &H20
Private Sub DrawButton(ByVal hWnd As Long, ByVal hDC As Long, _
rct As RECT, ByVal nState As Long)
Dim s As String
Dim va As TextVAligns
va = GetProp(hWnd, "VBTVAlign")
'Prepare DC for drawing
SetBkMode hDC, TRANSPARENT
SetTextColor hDC, GetProp(hWnd, "VBTForeColor")
'Prepare a text buffer
s = String$(255, 0)
'What should we print on the button?
GetWindowText hWnd, s, 255
'Trim off nulls
s = Left$(s, InStr(s, Chr$(0)) - 1)
If va = DT_BOTTOM Then
'Adjust specially for VB's CommandButton control
rct.Bottom = rct.Bottom - 4
End If
If (nState And ODS_SELECTED) = ODS_SELECTED Then
'Button is in down state - offset
'the text
rct.Left = rct.Left + 1
rct.Right = rct.Right + 1
rct.Bottom = rct.Bottom + 1
rct.Top = rct.Top + 1
End If
DrawText hDC, s, Len(s), rct, DT_CENTER Or DT_SINGLELINE _
Or va
End Sub
Public Function ExtButtonProc(ByVal hWnd As Long, _
ByVal wMsg As Long, ByVal wParam As Long, _
ByVal lParam As Long) As Long
Dim lOldProc As Long
Dim di As DRAWITEMSTRUCT
lOldProc = GetProp(hWnd, "ExtBtnProc")
ExtButtonProc = CallWindowProc(lOldProc, hWnd, wMsg, wParam, lParam)
If wMsg = WM_DRAWITEM Then
CopyMemory di, ByVal lParam, Len(di)
If di.CtlType = ODT_BUTTON Then
If GetProp(di.hwndItem, "VBTCustom") = 1 Then
DrawButton di.hwndItem, di.hDC, di.rcItem, _
di.itemState
End If
End If
ElseIf wMsg = WM_DESTROY Then
ExtButtonUnSubclass hWnd
End If
End Function
Public Sub ExtButtonSubclass(hWndForm As Long)
Dim l As Long
l = GetProp(hWndForm, "ExtBtnProc")
If l <> 0 Then
'Already subclassed
Exit Sub
End If
SetProp hWndForm, "ExtBtnProc", _
GetWindowLong(hWndForm, GWL_WNDPROC)
SetWindowLong hWndForm, GWL_WNDPROC, AddressOf ExtButtonProc
End Sub
Public Sub ExtButtonUnSubclass(hWndForm As Long)
Dim l As Long
l = GetProp(hWndForm, "ExtBtnProc")
If l = 0 Then
'Isn't subclassed
Exit Sub
End If
SetWindowLong hWndForm, GWL_WNDPROC, l
RemoveProp hWndForm, "ExtBtnProc"
End Sub
Public Sub SetButton(ByVal hWnd As Long, _
ByVal lForeColor As Long, _
Optional ByVal VAlign As TextVAligns = DT_VCENTER)
Dim hWndParent As Long
hWndParent = GetParent(hWnd)
If GetProp(hWndParent, "ExtBtnProc") = 0 Then
ExtButtonSubclass hWndParent
End If
SetProp hWnd, "VBTCustom", 1
SetProp hWnd, "VBTForeColor", lForeColor
SetProp hWnd, "VBTVAlign", VAlign
End Sub
Public Sub RemoveButton(ByVal hWnd As Long)
RemoveProp hWnd, "VBTCustom"
RemoveProp hWnd, "VBTForeColor"
RemoveProp hWnd, "VBTVAlign"
End Sub
'--------------------------------------------
' 使用方法:
'
' - 在设计时将文本的Style设为Graphical.
'
' - 随意设定背景色和图象属性.
'
' - 在Form_Load中调用 SetButton :
' SetButton Command1.hWnd, vbBlue
' (你可以任意次的调用该过程甚至不必先调用 RemoveButton.)
'
' - 在Form_Unload中调用 RemoveButton :
' RemoveButton Command1.hWnd
'===============================================
将Form命名为frmDemo。添加4个CommandButton，不必更改它们的名称，将它们的Style设为Graphical，给第3个按钮设置一幅图片。
CommandButton也可以放置在一个容器如PictureBox或Frame中，模块会判断，如果需要的话将CommandButton的容器也子类化。
在Form中加入如下代码：
Private Sub Form_Load()
'Initialize each button color.
SetButton Command1.hWnd, vbRed
SetButton Command2.hWnd, &H8000& '深绿色
'Assign this one a DT_BOTTOM alignment because
SetButton Command3.hWnd, vbBlue, DT_BOTTOM '含有图片，将文本放置在按钮底部
SetButton Command4.hWnd, &H8080& '暗棕黄色
End Sub
Private Sub Form_Unload(Cancel As Integer)
'手动解除按钮的子类化
'这并不是必须的
RemoveButton Command1.hWnd
RemoveButton Command2.hWnd
RemoveButton Command3.hWnd
RemoveButton Command4.hWnd
End SubTop
5 楼kmlxk（xiaoKKKK）回复于 2005-08-02 20:28:46 得分 0
@_@啊哦，代码说明一切，强Top
6 楼WallesCai（女人之美,在于蠢得无怨无悔,男人之美,在于撒谎撒得白日见鬼）回复于 2005-08-03 09:01:52 得分 5
按钮的功能也只是让你可以“按”一下，再触发一个事件而已，我一般都是使用LABEL控件来代替它的，不仅前后景颜色可以调节，资源占用也小。
楼主试试吧。Top
相关问题
关键词
得分解答快速导航
相关链接
广告也精彩
反馈
