VB6中的PictureBoc.hdc在Vb.NET中是什么? [英] PictureBoc.hdc in VB6 so what is it in Vb.NET?

问题描述

在VB6中，我使用了Picturebox1.hdc，因此在VB.NET中如何使用它?

In VB6 I used Picturebox1.hdc so in VB.NET how do I use it?

Private Declare Function StretchBlt Lib "gdi32" (ByVal hdc As Long, ByVal X As Long, ByVal Y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal nSrcWidth As Long, ByVal nSrcHeight As Long, ByVal dwRop As Long) As Long

Private Sub Command1_Click()
    Picture1.ScaleMode = 3
    Call StretchBlt(Picture1.hdc, Picture1.ScaleWidth, 0, Picture1.ScaleWidth * -1, Picture1.ScaleHeight, Picture1.hdc, 0, 0, Picture1.ScaleWidth, Picture1.ScaleHeight, &HCC0020)
End Sub

请帮帮我.
感谢您的进步

help me please.
thanks for advance

推荐答案

StretchBlt[^]

have a read of this

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