打印!在Winform中,如何在一窗体中实现从(起始坐标)到(终点坐标)的打印功能

[ycsno1]

我需要写一个方法,
private void MyPrint(Point startPoint,Point endPoint){...}
startPoint为起始坐标
endPoint为终点坐标
此方法主体要实现对位于起始坐标到终点坐标区域内的所有东西进行打印.
方法主体如何写,高手请指教!
急用!

[ls3697264]

up

[bw555]

给你个vb.net的版本,自己翻译下吧

 Private Declare Function CreateCompatibleDC Lib "GDI32" (ByVal hDC As Integer) As Integer
    Private Declare Function CreateCompatibleBitmap Lib "GDI32" (ByVal hDC As Integer, ByVal nWidth As Integer, ByVal nHeight As Integer) As Integer
    Private Declare Function SelectObject Lib "GDI32" (ByVal hDC As Integer, ByVal hObject As Integer) As Integer
    Private Declare Function BitBlt Lib "GDI32" (ByVal srchDC As Integer, ByVal srcX As Integer, ByVal srcY As Integer, ByVal srcW As Integer, ByVal srcH As Integer, ByVal desthDC As Integer, ByVal destX As Integer, ByVal destY As Integer, ByVal op As Integer) As Integer
    Private Declare Function DeleteDC Lib "GDI32" (ByVal hDC As Integer) As Integer
    Private Declare Function DeleteObject Lib "GDI32" (ByVal hObj As Integer) As Integer
    Declare Function GetDC Lib "user32" Alias "GetDC" (ByVal hwnd As Integer) As Integer
    Const SRCCOPY As Integer = &HCC0020
    Private Sub MyPrint(ByVal startPoint As Point, ByVal endPoint As Point)

        Dim bmp As Bitmap
        Dim hDC, hMDC As Integer
        Dim hBMP, hBMPOld As Integer
        hDC = GetDC(0)
        hMDC = CreateCompatibleDC(hDC)
        hBMP = CreateCompatibleBitmap(hDC, Me.Width, Me.Height)
        hBMPOld = SelectObject(hMDC, hBMP)
        BitBlt(hMDC, 0, 0, endPoint.X - startPoint.X, endPoint.Y - startPoint.Y, hDC, startPoint.X, startPoint.Y, SRCCOPY)
        hBMP = SelectObject(hMDC, hBMPOld)
        bmp = Image.FromHbitmap(New IntPtr(hBMP))
        DeleteDC(hDC)
        DeleteDC(hMDC)
        DeleteObject(hBMP)
        Dim ofd As New SaveFileDialog
        ofd.Filter = "jpg file |*.jpg |bmp file |*.bmp"
        If ofd.ShowDialog = DialogResult.OK Then
            bmp.Save(ofd.FileName)
        End If
    End Sub