Dim TemphDC As Long
Dim TemphPen As Long
Dim OldhPen As Long
Dim TempP as POINTAPITemphDC=GetDC(Frm1.hWnd)
TemphPen=CreatePen(PS_SOLID, 1, QBColor(1))
OldhPen=SelectObject(TemphDC, TemphPen)
Call MoveToEx(TemphDC, 0, 0, TempP)
Call LineTo(TemphDC, 100, 100)
Call SelectObject(TemphDC, OldhPen)
Call DeleteObject(TemphPen)
Call ReleaseDC(Frm1.hWnd, TemphDC)
Dim TemphPen As Long
Dim OldhPen As Long
Dim TempP as POINTAPITemphDC=GetDC(Frm1.hWnd)
TemphPen=CreatePen(PS_SOLID, 1, QBColor(1))
OldhPen=SelectObject(TemphDC, TemphPen)
Call MoveToEx(TemphDC, 0, 0, TempP)
Call LineTo(TemphDC, 100, 100)
Call SelectObject(TemphDC, OldhPen)
Call DeleteObject(TemphPen)
Call ReleaseDC(Frm1.hWnd, TemphDC)
x As Long
y As Long
End Type
Private Declare Function PolyBezier Lib "gdi32.dll" (ByVal hdc As Long, lppt As POINTAPI, ByVal cPoints As Long) As Long
Private Declare Function PolyBezierTo Lib "gdi32.dll" (ByVal hdc As Long, lppt As POINTAPI, ByVal cCount As Long) As Long
Private Declare Function MoveToEx Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, lpPoint As Any) As Long
Private Declare Function LineTo Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long
Private Declare Function PolyPolygon Lib "gdi32.dll" (ByVal hdc As Long, lpPoint As POINTAPI, lpPolyCounts As Long, ByVal nCount As Long) As Long
Private Sub Form_Paint()
Dim pts(0 To 6) As POINTAPI
Dim numpoints(0 To 1) As Long
'set the co鰎dinates
pts(0).x = 0: pts(0).y = 100
pts(1).x = 125: pts(1).y = 75
pts(2).x = 255: pts(2).y = 148
pts(3).x = 219: pts(3).y = 199
pts(4).x = 315: pts(4).y = 203
pts(5).x = 236: pts(5).y = 16
pts(6).x = 122: pts(6).y = 123
'set the forecolor to green
Me.ForeColor = vbGreen
'draw the b閦ier
PolyBezier Me.hdc, pts(0), 7
'set the forecolor to red
Me.ForeColor = vbRed
'move the 'active' point
MoveToEx Me.hdc, 200, 25, ByVal 0&
'set the co鰎dinates
pts(0).x = 125: pts(0).y = 50
pts(1).x = 123: pts(1).y = 200
pts(2).x = 102: pts(2).y = 100
pts(3).x = 102: pts(3).y = 100
pts(4).x = 312: pts(4).y = 75
pts(5).x = 289: pts(5).y = 125
'draw the b閦ier
PolyBezierTo Me.hdc, pts(0), 6
'set the forecolor to blue
Me.ForeColor = vbBlue
'set the points belonging to the rectangle
pts(0).x = 20: pts(0).y = 10
pts(1).x = 200: pts(1).y = 10
pts(2).x = 200: pts(2).y = 190
pts(3).x = 20: pts(3).y = 190
numpoints(0) = 4
'set the points belonging to the triangle
pts(4).x = 100: pts(4).y = 0
pts(5).x = 50: pts(5).y = 100
pts(6).x = 150: pts(6).y = 100
numpoints(1) = 3
'draw the polygons
PolyPolygon Me.hdc, pts(0), numpoints(0), 2
End Sub
Dim TemphPen As Long
Dim OldhPen As Long
Dim TempP as POINTAPITemphDC=GetDC(Frm1.hWnd) '取得窗体客户区的句柄
TemphPen=CreatePen(PS_SOLID, 1, QBColor(1)) '创建一个 颜色为蓝色、线宽为1 的实线画笔
OldhPen=SelectObject(TemphDC, TemphPen) '把画笔选入DC
Call MoveToEx(TemphDC, 0, 0, TempP) '移动点
Call LineTo(TemphDC, 100, 100) '绘制一条线
Call SelectObject(TemphDC, OldhPen) '回复原来的画笔
Call DeleteObject(TemphPen) '释放画笔
Call ReleaseDC(Frm1.hWnd, TemphDC) '释放由GetDC取得的DC