Question

vb 函数BitBlt的参数是那些？

Answer 1

声明：
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

【参数表】
hDestDC -------- Long，目标设备场景

x,y ------------ Long，对目标DC中目标矩形左上角位置进行描述的那个点。用目标DC的逻辑坐标表示

nWidth,nHeight - Long，欲传输图象的宽度和高度

hSrcDC --------- Long，源设备场景。如光栅运算未指定源，则应设为0

xSrc,ySrc ------ Long，对源DC中源矩形左上角位置进行描述的那个点。用源DC的逻辑坐标表示

dwRop ---------- Long，传输过程要执行的光栅运算