VB自制进度条控件

一、“添加用户控件”,命名为”ProgressBar”,代码如下:
Option Explicit

Public Enum U_TextAlignments
[Left Top] = 1
[Left Middle] = 2
[Left Bottom] = 3
[Center Top] = 4
[Center Middle] = 5
[Center Bottom] = 6
[Right Top] = 7
[Right Middle] = 8
[Right Bottom] = 9
End Enum

Public Enum U_TextEffects
[Normal] = 1
[Embossed] = 2
[Engraved] = 3
[OutLine] = 4
[Shadow] = 5
End Enum

Public Enum U_OrientationsS
[Horizontal] = 1
[Vertical] = 2

End Enum

Public Enum U_TextStyles
[PBValue] = 1
[PBPercentage] = 2
[CustomText] = 3
[PBNoneText] = 4
End Enum

Private Type BITMAPINFOHEADER
biSize As Long
biWidth As Long
biHeight As Long
biPlanes As Integer
biBitCount As Integer
biCompression As Long
biSizeImage As Long
biXPelsPerMeter As Long
biYPelsPerMeter As Long
biClrUsed As Long
biClrImportant As Long
End Type

Private Type RGBQUAD
rgbBlue As Byte
rgbGreen As Byte
rgbRed As Byte
rgbReserved As Byte
End Type

Private Type BITMAPINFO
bmiHeader As BITMAPINFOHEADER
bmiColors As RGBQUAD
End Type

Private Type cRGB
Blue As Byte
Green As Byte
Red As Byte
End Type

Enum U_Themes
[IceOrange] = 1
[IceYellow] = 2
[IceGreen] = 3
[IceCyan] = 4
[IceBangel] = 5
[IcePurple] = 6
[IceRed] = 7
[IceBlue] = 8
[Vista] = 9
[Custome] = 10
End Enum
Private Type GRADIENT_RECT
UpperLeft As Long
LowerRight As Long
End Type

Public Enum GRADIENT_DIRECT
[Left to Right] = &H0
[Top to Bottom] = &H1
End Enum

Private Type TRIVERTEX
x As Long
y As Long
Red As Integer
Green As Integer
Blue As Integer
Alpha As Integer
End Type

Private Declare Function CreateRoundRectRgn Lib “gdi32” (ByVal x1 As Long, ByVal y1 As Long, ByVal x2 As Long, ByVal y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long
Private Declare Function SetWindowRgn Lib “user32” (ByVal hwnd As Long, ByVal hRgn As Long, ByVal bRedraw As Boolean) As Long
Private Declare Function RoundRect Lib “gdi32” (ByVal hDC As Long, ByVal x1 As Long, ByVal y1 As Long, ByVal x2 As Long, ByVal y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long
Private Declare Function SetDIBitsToDevice Lib “gdi32” (ByVal hDC As Long, ByVal x As Long, ByVal y As Long, ByVal dx As Long, ByVal dy As Long, ByVal SrcX As Long, ByVal SrcY As Long, ByVal Scan As Long, ByVal NumScans As Long, Bits As Any, BitsInfo As BITMAPINFO, ByVal wUsage As Long) As Long
Private Declare Sub CopyMemory Lib “kernel32” Alias “RtlMoveMemory” (pDst As Any, pSrc As Any, ByVal ByteLen As Long)
Private Declare Function GradientFillRect Lib “msimg32” Alias “GradientFill” (ByVal hDC As Long, pVertex As TRIVERTEX, ByVal dwNumVertex As Long, pMesh As GRADIENT_RECT, ByVal dwNumMesh As Long, ByVal dwMode As Long) As Long
Private Declare Function SetRect Lib “user32” (lpRect As RECT, ByVal x1 As Long, ByVal y1 As Long, ByVal x2 As Long, ByVal y2 As Long) As Long

Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type

Const GRADIENT_FILL_RECT_H As Long = &H0
Const GRADIENT_FILL_RECT_V As Long = &H1
Private Const BI_RGB = 0&
Private Const DIB_RGB_COLORS = 0

Private U_TextStyle As U_TextStyles
Private U_Theme As U_Themes
Private U_Orientation As U_OrientationsS
Private U_Text As String
Private U_TextColor As OLE_COLOR
Private U_TextAlign As U_TextAlignments
Private U_TextFont As Font
Private U_TextEC As OLE_COLOR
Private U_TextEffect As U_TextEffects
Private U_RoundV As Long
Private U_Min As Long
Private U_Value As Long
Private U_Max As Long
Private U_Enabled As Boolean
Private c(16) As Long
Private U_PBSCC1 As OLE_COLOR
Private U_PBSCC2 As OLE_COLOR

Private Sub UserControl_Initialize()
UserControl.AutoRedraw = True
End Sub

Private Sub UserControl_Resize()
Bar_Draw
End Sub

Public Property Let Value(ByVal NewValue As Long)
If NewValue > U_Max Then NewValue = U_Max
If NewValue < U_Min Then NewValue = U_Min
U_Value = NewValue

PropertyChanged "Value"
Bar_Draw

End Property

Public Property Get Value() As Long
Value = U_Value
End Property

Public Property Let Max(ByVal NewValue As Long)
If NewValue < 1 Then NewValue = 1
If NewValue <= U_Min Then NewValue = U_Min + 1
U_Max = NewValue
If Value > U_Max Then Value = U_Max
PropertyChanged “Max”
Bar_Draw
End Property
Public Property Get Max() As Long
Max = U_Max
End Property

Public Property Let Min(ByVal NewValue As Long)
If NewValue >= U_Max Then NewValue = Max – 1
If NewValue < 0 Then NewValue = 0
U_Min = NewValue
If Value < U_Min Then Value = U_Min

PropertyChanged "Min"
Bar_Draw

End Property
Public Property Get Min() As Long
Min = U_Min
End Property
Public Property Get RoundedValue() As Long
RoundedValue = U_RoundV
End Property

Public Property Let RoundedValue(ByVal NewValue As Long)
U_RoundV = NewValue
PropertyChanged “RoundedValue”
Bar_Draw
End Property

Public Property Get Enabled() As Boolean
Enabled = U_Enabled
End Property

Public Property Let Enabled(ByVal NewValue As Boolean)
U_Enabled = NewValue
PropertyChanged “Enabled”
Bar_Draw
End Property
Private Sub UserControl_InitProperties()
Max = 100
Min = 0
Value = 50
RoundedValue = 5
Enabled = True
Theme = 1
TextForeColor = vbBlack
Text = “U11D ProgressBar”
TextAlignment = [Center Middle]
TextEffect = Shadow
TextEffectColor = vbWhite
TextStyle = CustomText
Orientations = Horizontal
Set TextFont = Ambient.Font
End Sub
Public Property Let Theme(ByVal NewValue As U_Themes)

U_Theme = NewValue
PropertyChanged "Theme"

Bar_Draw
End Property

Public Property Get Theme() As U_Themes
Theme = U_Theme
End Property

Public Property Let TextStyle(ByVal NewValue As U_TextStyles)
U_TextStyle = NewValue
PropertyChanged “TextStyle”
Bar_Draw
End Property
Public Property Get TextStyle() As U_TextStyles
TextStyle = U_TextStyle
End Property

Public Property Get Orientations() As U_OrientationsS
Orientations = U_Orientation
End Property

Public Property Let Orientations(ByVal NewValue As U_OrientationsS)
U_Orientation = NewValue
PropertyChanged “Orientations”
Bar_Draw
End Property

Public Property Get TextAlignment() As U_TextAlignments
TextAlignment = U_TextAlign
End Property

Public Property Let TextAlignment(ByVal NewValue As U_TextAlignments)
U_TextAlign = NewValue
PropertyChanged “TextAlignment”
Bar_Draw
End Property

Public Property Get Text() As String
Text = U_Text
End Property

Public Property Let Text(ByVal NewValue As String)
U_Text = NewValue
PropertyChanged “Text”
Bar_Draw
End Property
Public Property Get TextEffectColor() As OLE_COLOR
TextEffectColor = U_TextEC
End Property

Public Property Let TextEffectColor(ByVal NewValue As OLE_COLOR)
U_TextEC = NewValue
PropertyChanged “TextEffectColor”
Bar_Draw
End Property

Public Property Get TextEffect() As U_TextEffects
TextEffect = U_TextEffect
End Property

Public Property Let TextEffect(ByVal NewValue As U_TextEffects)
U_TextEffect = NewValue
PropertyChanged “TextEffect”
Bar_Draw
End Property

Public Property Get TextForeColor() As OLE_COLOR
TextForeColor = U_TextColor
End Property

Public Property Let TextForeColor(ByVal NewValue As OLE_COLOR)
U_TextColor = NewValue
PropertyChanged “TextForeColor”
Bar_Draw
End Property
Public Property Get TextFont() As Font
Set TextFont = U_TextFont
End Property

Public Property Set TextFont(ByVal NewValue As Font)
Set U_TextFont = NewValue
Set UserControl.Font = NewValue
PropertyChanged “TextFont”
Bar_Draw
End Property

Public Property Get PBSCustomeColor1() As OLE_COLOR
PBSCustomeColor1 = U_PBSCC1
End Property

Public Property Let PBSCustomeColor1(ByVal NewValue As OLE_COLOR)
U_PBSCC1 = NewValue
PropertyChanged “PBSCustomeColor1”
Bar_Draw
End Property
Public Property Get PBSCustomeColor2() As OLE_COLOR
PBSCustomeColor2 = U_PBSCC2
End Property

Public Property Let PBSCustomeColor2(ByVal NewValue As OLE_COLOR)
U_PBSCC2 = NewValue
PropertyChanged “PBSCustomeColor2”
Bar_Draw
End Property
Private Sub UserControl_ReadProperties(PropBag As PropertyBag)
On Error Resume Next
With PropBag

Max = .ReadProperty("Max", 100)
Min = .ReadProperty("Min", 0)
Value = .ReadProperty("Value", 50)
RoundedValue = .ReadProperty("RoundedValue", 5)
Enabled = .ReadProperty("Enabled", True)
Theme = .ReadProperty("Theme", 1)
TextStyle = .ReadProperty("TextStyle", 1)
Orientations = .ReadProperty("Orientations", Horizontal)
Text = .ReadProperty("Text", Ambient.DisplayName)
TextEffectColor = .ReadProperty("TextEffectColor", RGB(200, 200, 200))
TextEffect = .ReadProperty("TextEffect", 1)
TextAlignment = .ReadProperty("TextAlignment", 5)
Set TextFont = .ReadProperty("TextFont", Ambient.Font)
TextForeColor = .ReadProperty("TextForeColor", 0)
PBSCustomeColor2 = .ReadProperty("PBSCustomeColor2", vbBlack)
PBSCustomeColor1 = .ReadProperty("PBSCustomeColor1", vbBlack)
End With

End Sub

Private Sub UserControl_WriteProperties(PropBag As PropertyBag)
With PropBag
.WriteProperty “Orientations”, U_Orientation, Horizontal
.WriteProperty “Max”, U_Max, 100
.WriteProperty “Min”, U_Min, 0
.WriteProperty “Value”, U_Value, 50
.WriteProperty “RoundedValue”, U_RoundV, 5
.WriteProperty “Enabled”, U_Enabled, True
.WriteProperty “Theme”, U_Theme, 1
.WriteProperty “TextStyle”, U_TextStyle, 1
.WriteProperty “TextFont”, U_TextFont, Ambient.Font
.WriteProperty “TextForeColor”, U_TextColor, vbBlack
.WriteProperty “TextAlignment”, U_TextAlign, 5
.WriteProperty “Text”, U_Text, “”
.WriteProperty “TextEffectColor”, U_TextEC, RGB(200, 200, 200)
.WriteProperty “TextEffect”, U_TextEffect, 1
.WriteProperty “PBSCustomeColor2”, U_PBSCC2, vbBlack
.WriteProperty “PBSCustomeColor1”, U_PBSCC1, vbBlack
End With
End Sub

Private Sub Bar_Draw()
On Error Resume Next
Dim i, S, z, y, q As Long
Dim U_LRECT As Long

U_LRECT = CreateRoundRectRgn(0, 0, UserControl.ScaleWidth, UserControl.ScaleHeight, U_RoundV, U_RoundV)
SetWindowRgn UserControl.hwnd, U_LRECT, True

i = U_Max: S = U_Value: z = U_Max
y = (S * 100 / z)
q = (y * UserControl.ScaleWidth / 100)

If Orientations = Vertical Then q = (y * UserControl.ScaleHeight / 100)

CheckTheme

If Enabled = False Then
Dim II As Byte
For II = 0 To 16
c(II) = ColourTOGray(c(II))
Next II
End If

UserControl.Cls

If U_Orientation = Horizontal Then

GradientTwoColour UserControl.hDC, [Top to Bottom], c(0), c(2), 0, 0, UserControl.ScaleWidth, UserControl.ScaleHeight / 2
GradientTwoColour UserControl.hDC, [Top to Bottom], c(4), c(6), 0, UserControl.ScaleHeight / 2, UserControl.ScaleWidth, UserControl.ScaleHeight

‘DrawGradientFourColour UserControl.hDC, 0, 0, UserControl.ScaleWidth, UserControl.ScaleHeight / 2, c(0), c(1), c(2), c(3)
‘DrawGradientFourColour UserControl.hDC, 0, UserControl.ScaleHeight / 2, UserControl.ScaleWidth, UserControl.ScaleHeight / 2 – 1, c(4), c(5), c(6), c(7)

If Value >= 1 Then

GradientTwoColour UserControl.hDC, [Top to Bottom], c(8), c(10), 0, 0, q, UserControl.ScaleHeight / 2
GradientTwoColour UserControl.hDC, [Top to Bottom], c(12), c(14), 0, UserControl.ScaleHeight / 2, q, UserControl.ScaleHeight
‘DrawGradientFourColour UserControl.hDC, 0, 0, q, UserControl.ScaleHeight / 2, c(8), c(9), c(10), c(11)
‘DrawGradientFourColour UserControl.hDC, 0, UserControl.ScaleHeight / 2, q, UserControl.ScaleHeight / 2 – 1, c(12), c(13), c(14), c(15)
End If

ElseIf U_Orientation = Vertical Then

GradientTwoColour UserControl.hDC, [Left to Right], c(0), c(2), 0, 0, UserControl.ScaleWidth / 2, UserControl.ScaleHeight
GradientTwoColour UserControl.hDC, [Left to Right], c(4), c(6), UserControl.ScaleWidth / 2, 0, UserControl.ScaleWidth, UserControl.ScaleHeight

‘DrawGradientFourColour UserControl.hDC, 0, 0, UserControl.ScaleWidth, UserControl.ScaleHeight / 2, c(0), c(1), c(2), c(3)
‘DrawGradientFourColour UserControl.hDC, 0, UserControl.ScaleHeight / 2, UserControl.ScaleWidth, UserControl.ScaleHeight / 2 – 1, c(4), c(5), c(6), c(7)

If Value >= 1 Then

GradientTwoColour UserControl.hDC, [Left to Right], c(8), c(10), 0, 0, UserControl.ScaleWidth / 2, q
GradientTwoColour UserControl.hDC, [Left to Right], c(12), c(14), UserControl.ScaleWidth / 2, 0, UserControl.ScaleWidth, q
‘DrawGradientFourColour UserControl.hDC, 0, 0, q, UserControl.ScaleHeight / 2, c(8), c(9), c(10), c(11)
‘DrawGradientFourColour UserControl.hDC, 0, UserControl.ScaleHeight / 2, q, UserControl.ScaleHeight / 2 – 1, c(12), c(13), c(14), c(15)
End If
End If

UserControl.ForeColor = c(16)
RoundRect UserControl.hDC, 0, 0, UserControl.ScaleWidth – 1, UserControl.ScaleHeight – 1, U_RoundV, U_RoundV

If TextStyle = PBValue Then
DrawCaptionText Value, U_TextAlign
ElseIf TextStyle = PBPercentage Then
DrawCaptionText y & “%”, U_TextAlign
ElseIf TextStyle = CustomText Then
DrawCaptionText U_Text, U_TextAlign
ElseIf TextStyle = PBNoneText Then
End If
End Sub

Private Sub CheckTheme()
If Theme = 1 Then
‘BACK
c(0) = RGB(248, 246, 242)
c(1) = RGB(248, 246, 242)
c(2) = RGB(233, 227, 211)
c(3) = RGB(233, 227, 211)
’
c(4) = RGB(226, 215, 182)
c(5) = RGB(226, 215, 182)
c(6) = RGB(239, 233, 215)
c(7) = RGB(239, 233, 215)
‘FRONT
c(8) = RGB(251, 244, 223)
c(9) = RGB(251, 244, 223)
c(10) = RGB(239, 213, 133)
c(11) = RGB(239, 213, 133)
’
c(12) = RGB(203, 166, 57)
c(13) = RGB(203, 166, 57)
c(14) = RGB(237, 224, 187)
c(15) = RGB(237, 224, 187)
‘FORE COLOUR
c(16) = RGB(204, 168, 62)
ElseIf Theme = 2 Then
‘BACK
c(0) = RGB(247, 248, 242)
c(1) = RGB(247, 248, 242)
c(2) = RGB(231, 233, 211)
c(3) = RGB(231, 233, 211)
’
c(4) = RGB(222, 226, 182)
c(5) = RGB(222, 226, 182)
c(6) = RGB(237, 239, 215)
c(7) = RGB(237, 239, 215)
‘FRONT
c(8) = RGB(249, 251, 223)
c(9) = RGB(249, 251, 223)
c(10) = RGB(230, 239, 133)
c(11) = RGB(230, 239, 133)
’
c(12) = RGB(190, 203, 57)
c(13) = RGB(190, 203, 57)
c(14) = RGB(233, 237, 187)
c(15) = RGB(233, 237, 187)
‘FORE COLOUR
c(16) = RGB(192, 204, 62)
ElseIf Theme = 3 Then
‘BACK
c(0) = RGB(242, 248, 243)
c(1) = RGB(242, 248, 243)
c(2) = RGB(211, 233, 213)
c(3) = RGB(211, 233, 213)
’
c(4) = RGB(182, 226, 186)
c(5) = RGB(182, 226, 186)
c(6) = RGB(215, 239, 217)
c(7) = RGB(215, 239, 217)
‘FRONT
c(8) = RGB(223, 251, 225)
c(9) = RGB(223, 251, 225)
c(10) = RGB(133, 239, 142)
c(11) = RGB(133, 239, 142)
’
c(12) = RGB(57, 203, 70)
c(13) = RGB(57, 203, 70)
c(14) = RGB(187, 237, 191)
c(15) = RGB(187, 237, 191)
‘FORE COLOUR
c(16) = RGB(62, 204, 74)
ElseIf Theme = 4 Then
‘BACK
c(0) = RGB(242, 248, 247)
c(1) = RGB(242, 248, 247)
c(2) = RGB(211, 233, 231)
c(3) = RGB(211, 233, 231)
’
c(4) = RGB(182, 226, 222)
c(5) = RGB(182, 226, 222)
c(6) = RGB(215, 239, 237)
c(7) = RGB(215, 239, 237)
‘FRONT
c(8) = RGB(223, 251, 249)
c(9) = RGB(223, 251, 249)
c(10) = RGB(133, 239, 230)
c(11) = RGB(133, 239, 230)
’
c(12) = RGB(57, 203, 190)
c(13) = RGB(57, 203, 190)
c(14) = RGB(187, 237, 233)
c(15) = RGB(187, 237, 233)
‘FORE COLOUR
c(16) = RGB(62, 204, 192)
ElseIf Theme = 5 Then
‘BACK
c(0) = RGB(243, 242, 248)
c(1) = RGB(243, 242, 248)
c(2) = RGB(213, 211, 233)
c(3) = RGB(213, 211, 233)
’
c(4) = RGB(186, 182, 226)
c(5) = RGB(186, 182, 226)
c(6) = RGB(217, 215, 239)
c(7) = RGB(217, 215, 239)
‘FRONT
c(8) = RGB(225, 223, 251)
c(9) = RGB(225, 223, 251)
c(10) = RGB(142, 133, 239)
c(11) = RGB(142, 133, 239)
’
c(12) = RGB(70, 57, 203)
c(13) = RGB(70, 57, 203)
c(14) = RGB(191, 187, 237)
c(15) = RGB(191, 187, 237)
‘FORE COLOUR
c(16) = RGB(74, 62, 204)
ElseIf Theme = 6 Then
‘BACK
c(0) = RGB(248, 242, 247)
c(1) = RGB(248, 242, 247)
c(2) = RGB(233, 211, 231)
c(3) = RGB(233, 211, 231)
’
c(4) = RGB(226, 182, 222)
c(5) = RGB(226, 182, 222)
c(6) = RGB(239, 215, 237)
c(7) = RGB(239, 215, 237)
‘FRONT
c(8) = RGB(251, 223, 249)
c(9) = RGB(251, 223, 249)
c(10) = RGB(239, 133, 230)
c(11) = RGB(239, 133, 230)
’
c(12) = RGB(203, 57, 190)
c(13) = RGB(203, 57, 190)
c(14) = RGB(237, 187, 233)
c(15) = RGB(237, 187, 233)
‘FORE COLOUR
c(16) = RGB(204, 62, 192)
ElseIf Theme = 7 Then
‘BACK
c(0) = RGB(248, 242, 242)
c(1) = RGB(248, 242, 242)
c(2) = RGB(233, 211, 211)
c(3) = RGB(233, 211, 211)
’
c(4) = RGB(226, 182, 182)
c(5) = RGB(226, 182, 182)
c(6) = RGB(239, 215, 215)
c(7) = RGB(239, 215, 215)
‘FRONT
c(8) = RGB(251, 223, 223)
c(9) = RGB(251, 223, 223)
c(10) = RGB(239, 133, 133)
c(11) = RGB(239, 133, 133)
’
c(12) = RGB(203, 57, 57)
c(13) = RGB(203, 57, 57)
c(14) = RGB(237, 187, 187)
c(15) = RGB(237, 187, 187)
‘FORE COLOUR
c(16) = RGB(204, 62, 62)
ElseIf Theme = 8 Then
‘BACK
c(0) = RGB(250, 253, 254)
c(1) = RGB(250, 253, 254)
c(2) = RGB(228, 243, 252)
c(3) = RGB(228, 243, 252)
’
c(4) = RGB(199, 230, 249)
c(5) = RGB(199, 230, 249)
c(6) = RGB(237, 247, 253)
c(7) = RGB(237, 247, 253)
‘FRONT
c(8) = RGB(225, 247, 255)
c(9) = RGB(225, 247, 255)
c(10) = RGB(67, 208, 255)
c(11) = RGB(67, 208, 255)
’
c(12) = RGB(63, 112, 233)
c(13) = RGB(63, 112, 233)
c(14) = RGB(63, 226, 246)
c(15) = RGB(63, 226, 246)
‘FORE COLOUR
c(16) = RGB(23, 139, 211)
ElseIf Theme = 9 Then
‘BACK
c(0) = RGB(231, 243, 232)
c(1) = RGB(231, 243, 232)
c(2) = RGB(225, 219, 225)
c(3) = RGB(225, 219, 225)
’
c(4) = RGB(179, 189, 179)
c(5) = RGB(179, 189, 179)
c(6) = RGB(226, 238, 226)
c(7) = RGB(226, 238, 226)
‘FRONT
c(8) = RGB(223, 251, 223)
c(9) = RGB(223, 251, 223)
c(10) = RGB(108, 255, 108)
c(11) = RGB(108, 255, 108)
’
c(12) = RGB(26, 228, 26)
c(13) = RGB(26, 228, 26)
c(14) = RGB(217, 244, 217)
c(15) = RGB(217, 244, 217)
‘FORE COLOUR
c(16) = RGB(188, 184, 188)
ElseIf Theme = 10 Then

‘BACK
c(0) = LightenColor(U_PBSCC2, 180)
c(1) = LightenColor(U_PBSCC2, 180)
c(2) = LightenColor(U_PBSCC2, 50)
c(3) = LightenColor(U_PBSCC2, 50)
’
c(4) = U_PBSCC2
c(5) = U_PBSCC2
c(6) = LightenColor(U_PBSCC2, 80)
c(7) = LightenColor(U_PBSCC2, 80)
‘FRONT
c(8) = LightenColor(U_PBSCC1, 180)
c(9) = LightenColor(U_PBSCC1, 180)
c(10) = LightenColor(U_PBSCC1, 50)
c(11) = LightenColor(U_PBSCC1, 50)
’
c(12) = U_PBSCC1
c(13) = U_PBSCC1
c(14) = LightenColor(U_PBSCC1, 80)
c(15) = LightenColor(U_PBSCC1, 80)
‘FORE COLOUR
c(16) = U_PBSCC1
End If
End Sub

Private Sub DrawCaptionText(ByVal TextString As String, ByVal Alignment As U_TextAlignments)
Dim lonStartWidth As Long, lonStartHeight As Long
Dim PBTCN, PBTCS As Long

If Enabled = True Then
PBTCN = U_TextColor
PBTCS = U_TextEC
Else
PBTCN = ColourTOGray(U_TextColor)
PBTCS = ColourTOGray(U_TextEC)
End If

UserControl.ForeColor = PBTCN

If Alignment = 1 Then
lonStartWidth = 1
lonStartHeight = 0
ElseIf Alignment = 2 Then
lonStartWidth = 1
lonStartHeight = (UserControl.ScaleHeight / 2) – (UserControl.TextHeight(TextString) / 2) – 1
ElseIf Alignment = 3 Then
lonStartWidth = 1
lonStartHeight = (UserControl.ScaleHeight – UserControl.TextHeight(TextString)) – 1

ElseIf Alignment = 4 Then
lonStartWidth = (UserControl.ScaleWidth / 2) – (UserControl.TextWidth(TextString) / 2) – 1
lonStartHeight = 0
ElseIf Alignment = 5 Then
lonStartWidth = (UserControl.ScaleWidth / 2) – (UserControl.TextWidth(TextString) / 2) – 1
lonStartHeight = (UserControl.ScaleHeight / 2) – (UserControl.TextHeight(TextString) / 2) – 1
ElseIf Alignment = 6 Then
lonStartWidth = (UserControl.ScaleWidth / 2) – (UserControl.TextWidth(TextString) / 2) – 1
lonStartHeight = (UserControl.ScaleHeight – UserControl.TextHeight(TextString)) – 1

ElseIf Alignment = 7 Then
lonStartWidth = (UserControl.ScaleWidth – UserControl.TextWidth(TextString)) – 3
lonStartHeight = 0
ElseIf Alignment = 8 Then
lonStartWidth = (UserControl.ScaleWidth – UserControl.TextWidth(TextString)) – 3
lonStartHeight = (UserControl.ScaleHeight / 2) – (UserControl.TextHeight(TextString) / 2) – 1
ElseIf Alignment = 9 Then
lonStartWidth = (UserControl.ScaleWidth – UserControl.TextWidth(TextString)) – 3
lonStartHeight = (UserControl.ScaleHeight – UserControl.TextHeight(TextString)) – 1
End If

If U_TextEffect = Normal Then
    UserControl.CurrentX = lonStartWidth
    UserControl.CurrentY = lonStartHeight
    UserControl.Print TextString
ElseIf U_TextEffect = Engraved Then
    UserControl.ForeColor = PBTCS
    UserControl.CurrentX = lonStartWidth + 1
    UserControl.CurrentY = lonStartHeight + 1
    UserControl.Print TextString
    UserControl.ForeColor = RGB(128, 128, 128)
    UserControl.CurrentX = lonStartWidth - 1
    UserControl.CurrentY = lonStartHeight
    UserControl.Print TextString
    UserControl.ForeColor = PBTCN
    UserControl.CurrentX = lonStartWidth
    UserControl.CurrentY = lonStartHeight
    UserControl.Print TextString
    
ElseIf U_TextEffect = Embossed Then
    UserControl.ForeColor = PBTCS
    UserControl.CurrentX = lonStartWidth - 1
    UserControl.CurrentY = lonStartHeight - 1
    UserControl.Print TextString
    UserControl.ForeColor = RGB(128, 128, 128)
    UserControl.CurrentX = lonStartWidth + 1
    UserControl.CurrentY = lonStartHeight + 1
    UserControl.Print TextString
    UserControl.ForeColor = PBTCN
    UserControl.CurrentX = lonStartWidth
    UserControl.CurrentY = lonStartHeight
    UserControl.Print TextString
ElseIf U_TextEffect = OutLine Then
    UserControl.ForeColor = PBTCS
    UserControl.CurrentX = lonStartWidth + 1
    UserControl.CurrentY = lonStartHeight
    UserControl.Print TextString
    UserControl.CurrentX = lonStartWidth - 1
    UserControl.CurrentY = lonStartHeight
    UserControl.Print TextString
    UserControl.CurrentY = lonStartHeight - 1
    UserControl.CurrentX = lonStartWidth
    UserControl.Print TextString
    UserControl.CurrentY = lonStartHeight + 1
    UserControl.CurrentX = lonStartWidth
    UserControl.Print TextString
    UserControl.ForeColor = PBTCN
    UserControl.CurrentX = lonStartWidth
    UserControl.CurrentY = lonStartHeight
    UserControl.Print TextString
    
ElseIf U_TextEffect = Shadow Then
    UserControl.ForeColor = PBTCS
    UserControl.CurrentX = lonStartWidth + 1
    UserControl.CurrentY = lonStartHeight + 1
    UserControl.Print TextString
    UserControl.ForeColor = PBTCN
    UserControl.CurrentX = lonStartWidth
    UserControl.CurrentY = lonStartHeight
    UserControl.Print TextString
End If

End Sub

Public Function DrawGradientFourColour(ObjectHDC As Long, Left As Long, Top As Long, Width As Long, Height As Long, TopLeftColour As Long, TopRightColour As Long, BottomLeftColour As Long, BottomRightColour As Long)
Dim bi24BitInfo As BITMAPINFO
Dim bBytes() As Byte
Dim LeftGrads() As cRGB
Dim RightGrads() As cRGB
Dim MiddleGrads() As cRGB
Dim TopLeft As cRGB
Dim TopRight As cRGB
Dim BottomLeft As cRGB
Dim BottomRight As cRGB
Dim iLoop As Long
Dim bytesWidth As Long

With TopLeft
    .Red = Red(TopLeftColour)
    .Green = Green(TopLeftColour)
    .Blue = Blue(TopLeftColour)
End With

With TopRight
    .Red = Red(TopRightColour)
    .Green = Green(TopRightColour)
    .Blue = Blue(TopRightColour)
End With

With BottomLeft
    .Red = Red(BottomLeftColour)
    .Green = Green(BottomLeftColour)
    .Blue = Blue(BottomLeftColour)
End With

With BottomRight
    .Red = Red(BottomRightColour)
    .Green = Green(BottomRightColour)
    .Blue = Blue(BottomRightColour)
End With

GradateColours LeftGrads, Height, TopLeft, BottomLeft
GradateColours RightGrads, Height, TopRight, BottomRight

With bi24BitInfo.bmiHeader
    .biBitCount = 24
    .biCompression = BI_RGB
    .biPlanes = 1
    .biSize = Len(bi24BitInfo.bmiHeader)
    .biWidth = Width
    .biHeight = 1
End With

ReDim bBytes(1 To bi24BitInfo.bmiHeader.biWidth * bi24BitInfo.bmiHeader.biHeight * 3) As Byte

bytesWidth = (Width) * 3

For iLoop = 0 To Height - 1
    GradateColours MiddleGrads, Width, LeftGrads(iLoop), RightGrads(iLoop)
    CopyMemory bBytes(1), MiddleGrads(0), bytesWidth
    SetDIBitsToDevice ObjectHDC, Left, Top + iLoop, bi24BitInfo.bmiHeader.biWidth, bi24BitInfo.bmiHeader.biHeight, 0, 0, 0, bi24BitInfo.bmiHeader.biHeight, bBytes(1), bi24BitInfo, DIB_RGB_COLORS
Next iLoop

End Function

Private Function GradateColours(cResults() As cRGB, Length As Long, Colour1 As cRGB, Colour2 As cRGB)
Dim fromR As Integer
Dim toR As Integer
Dim fromG As Integer
Dim toG As Integer
Dim fromB As Integer
Dim toB As Integer
Dim stepR As Single
Dim stepG As Single
Dim stepB As Single
Dim iLoop As Long

ReDim cResults(0 To Length)

fromR = Colour1.Red
fromG = Colour1.Green
fromB = Colour1.Blue

toR = Colour2.Red
toG = Colour2.Green
toB = Colour2.Blue

stepR = Divide(toR - fromR, Length)
stepG = Divide(toG - fromG, Length)
stepB = Divide(toB - fromB, Length)

For iLoop = 0 To Length
    cResults(iLoop).Red = fromR + (stepR * iLoop)
    cResults(iLoop).Green = fromG + (stepG * iLoop)
    cResults(iLoop).Blue = fromB + (stepB * iLoop)
Next iLoop

End Function

Private Function Blue(Colour As Long) As Long
Blue = (Colour And &HFF0000) / &H10000
End Function
Private Function Green(Colour As Long) As Long
Green = (Colour And &HFF00&) / &H100
End Function

Private Function Red(Colour As Long) As Long
Red = (Colour And &HFF&)
End Function

Private Function Divide(Numerator, Denominator) As Single
If Numerator = 0 Or Denominator = 0 Then
Divide = 0
Else
Divide = Numerator / Denominator
End If
End Function
Public Sub GradientTwoColour(ByVal hDC As Long, ByVal Direction As GRADIENT_DIRECT, ByVal StartColor As Long, ByVal EndColor As Long, Left As Long, Top As Long, Width As Long, Height As Long)
Dim udtVert(1) As TRIVERTEX, udtGRect As GRADIENT_RECT
Dim UDTRECT As RECT
‘hDCObj.ScaleMode = vbPixels
‘hDCObj.AutoRedraw = True
SetRect UDTRECT, Left, Top, Width, Height
With udtVert(0)
.x = UDTRECT.Left
.y = UDTRECT.Top
.Red = LongToSignedShort(CLng((StartColor And &HFF&) * 256))
.Green = LongToSignedShort(CLng(((StartColor And &HFF00&) \ &H100&) * 256))
.Blue = LongToSignedShort(CLng(((StartColor And &HFF0000) \ &H10000) * 256))
.Alpha = 0&
End With
With udtVert(1)
.x = UDTRECT.Right
.y = UDTRECT.Bottom
.Red = LongToSignedShort(CLng((EndColor And &HFF&) * 256))
.Green = LongToSignedShort(CLng(((EndColor And &HFF00&) \ &H100&) * 256))
.Blue = LongToSignedShort(CLng(((EndColor And &HFF0000) \ &H10000) * 256))
.Alpha = 0&
End With
udtGRect.UpperLeft = 0
udtGRect.LowerRight = 1
GradientFillRect hDC, udtVert(0), 2, udtGRect, 1, Direction
End Sub
Private Function LongToSignedShort(ByVal Unsigned As Long) As Integer
If Unsigned < 32768 Then
LongToSignedShort = CInt(Unsigned)
Else
LongToSignedShort = CInt(Unsigned – &H10000)
End If
End Function
Private Function ColourTOGray(ByVal uColor As Long) As Long
Dim Red As Long, Blue As Long, Green As Long
Dim gray As Long
Red = uColor Mod 256
Green = (uColor Mod 65536) / 256
Blue = uColor / 65536
gray = (Red + Green + Blue) / 3
ColourTOGray = RGB(gray, gray, gray)
End Function
Private Function LightenColor(ByVal uColour As ColorConstants, Optional ByVal OffSet As Long = 1) As Long
Dim intR As Integer, intG As Integer, intB As Integer
intR = Abs((uColour Mod 256) + OffSet)
intG = Abs((((uColour And &HFF00) / 256&) Mod 256&) + OffSet)
intB = Abs(((uColour And &HFF0000) / 65536) + OffSet)
LightenColor = RGB(intR, intG, intB)
End Function
‘——————————————————————————————————-
二、Form测试，代码如下：
Option Explicit
Dim i As Integer, B As Boolean

Private Sub Command1_Click()
ProgressBar1.Value = 0
B = True
Do
DoEvents
ProgressBar1.Value = i
i = i + 1
If i >= 10000 Or B = False Then Exit Do
Loop
End Sub

Private Sub Form_Load()
ProgressBar1.Max = 10000
ProgressBar1.Min = 0
ProgressBar1.Value = 0
End Sub

Private Sub Form_Unload(Cancel As Integer)
B = False
End Sub

今天的文章VB自制进度条控件分享到此就结束了，感谢您的阅读。