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Public Declare Function BitBlt Lib "gdi32" Alias "BitBlt" (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
Public Declare Function GetDC Lib "user32" Alias "GetDC" (ByVal hwnd As Long) As Long
Private Declare Function ReleaseDC Lib "user32" Alias "ReleaseDC" (ByVal hwnd As Long, ByVal hdc As Long) As Long
BitBlt()函数是对屏幕图形进行复制
GetDc() 函数返回整个屏幕的设备指针,用于屏幕抓取工作。
ReleaseDc()函数跟上面是对应的,属于释放刚才分配的资源
关于bitblt()更多使用方法参见:http://tieba.baidu.com/p/623209835#