VB.NET中怎么在图片上直接输出文字。向VB中有Print的方法

两种方法：

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图片框上盖个Label 向其输入内容。

载入图片，通过内存直接 DrawImage绘制个新图，然后在图上盖文字。最后赋值给图片框。

VB6的print 实质是向图片框打印文字，不管有无图都能在上面Print. 考虑速度和实现难度问题，如果纯粹显示，最好直接盖个Label最简单。第二种方法 需要考虑文字大小、颜色、坐标定位等等。如果一行文字显示不下，不会自动换行，得自己切。

高分求助，如何在VB.NET中做任意角度的旋转字体

文字编辑结束后，选择“移动”工具（工具箱第一个工具，快捷键V），然后按Ctrl+T快捷键进行“自由变换”，会在文字上出现控制框，把鼠标移到控制框外边指针就会变成旋转的样式，按住鼠标左键拖动就可以进行任意角度旋转了。

VB编程： 在picturebox中print 文字，文字要求旋转90°

Option Explicit

' 逻辑字体

Public Const LF_FACESIZE = 32 ' 最长的字体名称

Public Const SYSTEM_FONT = 13

Type LOGFONT

lfHeight As Long

lfWidth As Long

lfEscapement As Long

lfOrientation As Long

lfWeight As Long

lfItalic As Byte

lfUnderline As Byte

lfStrikeOut As Byte

lfCharSet As Byte

lfOutPrecision As Byte

lfClipPrecision As Byte

lfQuality As Byte

lfPitchAndFamily As Byte

lfFaceName(LF_FACESIZE) As Byte

End Type

' 字体的族

Public Const VARIABLE_PITCH = 2

Public Const FF_DONTCARE = 0 ' 无所谓

Public Const FF_ROMAN = 16 ' 字体宽度可变，Times Roman, Century ' Schoolbook等

Public Const FF_SWISS = 32 ' 宽度可变，带衬线，如Helvetica, Swiss等

Public Const FF_MODERN = 48 ' 具有规定的宽度，衬线可有可无，

' 如Pica, Elite, Courier等等.

Public Const FF_SCRIPT = 64 ' 手写体，如Cursive

Public Const FF_DECORATIVE = 80 ' 特殊字体，如Old English

' GDI字体函数

Declare Function CreateFontIndirect Lib "gdi32" Alias "CreateFontIndirectA" (lpLogFont As LOGFONT) As Long

Declare Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As Long) As Long

Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long

Declare Function GetStockObject Lib "gdi32" (ByVal nIndex As Long) As Long

Declare Function GDIGetObject Lib "gdi32" Alias "GetObjectA" (ByVal hObject As Long, ByVal nCount As Long, lpObject As Any) As Long

Declare Function TextOut Lib "gdi32" Alias "TextOutA" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal lpString As String, ByVal nCount As Long) As Long

Declare Function lstrlen Lib "KERNEL32" Alias "lstrlenA" (ByVal lpString As String) As Long

Declare Function GetWindowDC Lib "user32" (ByVal hwnd As Long) As Long

Sub RotPrint(ByVal hDestDC As Long, Text As String, x As Double, y As Double, LineAngle As Double)

Dim hFont As Long, hOldFont As Long, R As Long

Dim Font As LOGFONT

hOldFont = SelectObject(hDestDC, GetStockObject(SYSTEM_FONT))

GDIGetObject hOldFont, Len(Font), Font

' 填充LOGFONT结构

Font.lfEscapement = LineAngle * 10 ' 输出字体行与水平页底间的角度(以1/10度为单位)

' 必须是可变点字体

Font.lfPitchAndFamily = VARIABLE_PITCH Or FF_DONTCARE

' 创建字体

hFont = CreateFontIndirect(Font)

' 选择旋转字体

R = SelectObject(hDestDC, hFont)

' 显示字体

TextOut hDestDC, x, y, Text, lstrlen(Text)

' 恢复原字体

hFont = SelectObject(hDestDC, hOldFont)

' 删除创建的字体

DeleteObject hFont

'DeleteObject hOldFont

End Sub

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