vb點虐 dc的簡單介紹

VB點虐 將圖片選入內(nèi)存dc

你試試行不行

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Dim bt As Bitmap = New Bitmap(456, 456)

Dim dcObject As Integer = bt.GetHbitmap().ToInt32()

vb點虐 對固定坐標(biāo)取色

Using b As New Bitmap(1, 1)

Using g As Graphics = Graphics.FromImage(b)

g.CopyFromScreen(New Point(300, 300), New Point, New Size(1, 1))

PictureBox1.BackColor = b.GetPixel(0, 0)

End Using

End Using

復(fù)制當(dāng)前屏幕左上角位置(300,300)的一個點,取其顏色

vb點虐 中怎么根據(jù)日期算出是周幾呢?

Public?Function?IsRunnian(ByVal?n?As?Integer)?As?Boolean

Dim?res?As?Boolean

res?=?False

If?n?Mod?400?=?0?Then

res?=?True

End?If

If?(n?Mod?100??0)?And?(n?Mod?4?=?0)?Then

res?=?True

End?If

IsRunnian?=?res

End?Function

Public?Function?Fc(ByVal?td?As?Date)?As?Byte

Dim?y?As?Integer

Dim?m?As?Integer

Dim?d?As?Integer

Dim?yc?As?Integer

Dim?mc?As?Integer

Dim?dc?As?Integer

y?=?Year(td)

m?=?Month(td)

d?=?Day(td)

dc?=?d

If?IsRunnian(y)?Then

mc?=?Val(Mid("512503514624",?m,?1))

Else

mc?=?Val(Mid("622503514624",?m,?1))

End?If

yc?=?((y?Mod?100)?\?4?+?(y?Mod?100))?Mod?7

Fc?=?(yc?+?mc?+?dc)?Mod?7

End?Function

Vb.NET行數(shù)據(jù)轉(zhuǎn)換成列數(shù)據(jù)

Private?Sub?Form1_Load(ByVal?sender?As?System.Object,?ByVal?e?As?System.EventArgs)?Handles?MyBase.Load

DataGridView1.Columns.Clear()

DataGridView1.DataSource?=?GetDateTable("1|2|3,張三|李四|王五,1111111|2222222|3333333",?"編號|姓名|卡號")

End?Sub

Function?GetDateTable(ByVal?s?As?String,?ByVal?TabNames?As?String)?As?DataTable

Dim?tb?As?New?DataTable

Dim?ss()?As?String?=?s.Split(",")

Dim?tc()?As?String?=?TabNames.Split("|")

Dim?c?As?Integer

For?Each?i?As?String?In?ss

Dim?ts()?As?String?=?i.Split("|")

Dim?dc?As?DataColumn

If?c??tc.Length?Then

dc?=?New?DataColumn(tc(c))

Else

dc?=?New?DataColumn

End?If

tb.Columns.Add(dc)

For?j?As?Integer?=?0?To?ts.Length?-?1

If?j??tb.Rows.Count?-?1?Then

tb.Rows.Add(tb.NewRow)

End?If

tb.Rows(j)(dc)?=?ts(j)

Next

c?+=?1

Next

Return?tb

End?Function

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