VB用Bitblt实现透明位图显示

发布时间：2020-12-17 00:33:26 所属栏目：大数据来源：网络整理

导读：Visual Basic Code 'API声明 Private Declare Function BitBlt Lib "gdi32" ( ByVal hDestDC 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, By

Visual Basic Code

'API声明
Private Declare Function BitBlt Lib "gdi32" ( ByVal hDestDC 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 dwRop As Long ) As Long

Private Sub Command1_Click ( )
BitBlt 目标图.hDC,( 目标图.Width / 2 - 掩码图.Width / 2 ) / 15, 0, 掩码图.Width / 15, 掩码图.Height / 15, 掩码图.hDC,0, vbSrcAnd
BitBlt 目标图.hDC, 源图.hDC, vbSrcInvert
End Sub

（编辑：李大同）

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