void CDrawlineView::OnLButtonDown(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
CView::OnLButtonDown(nFlags, point);
p0=p1=point;//宸插畾涔夌殑cpoint鍙橀噺
}
void CDrawlineView::OnMouseMove(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default
if(nFlags==MK_LBUTTON)
{
CClientDC dc(this);
pDefPen=dc.SelectObject (pPreviewPen);
dc.SetROP2(R2_XORPEN); /*瀹冧笉鏄緗綋鍓嶇敾絎旂殑棰滆壊鍜屽睆騫曡壊鐨勭粍鍚堣繍綆楀緱鍒扮殑緇樺浘妯″紡錛屼笉鏄彧鏄叧浜?nbsp; 棰滆壊鍚楋紝褰撴病鏈夎繖鍙ユ椂錛岄紶鏍囩Щ鍔ㄧ敾鍑虹殑綰塊兘浼氫繚鐣欎笅鏉ワ紝涓轟粈涔堝憿*/
dc.MoveTo(p0); //榪欏彞鍜屼笅闈竴鍙ワ紝褰撴病鏈夛紝榧犳爣縐誨姩鐢誨嚭鐨勭嚎閮戒細淇濈暀涓嬫潵錛屽綋鏈夋椂錛屾棤璁烘庝箞
dc.LineTo(p1); //縐?鍔ㄩ兘鍙湁涓鏉$洿綰匡紝 涓轟粈涔堬紝鎴戝疄鍦ㄦ槸鎯充笉鏄庣櫧錛?
p1=point;
dc.MoveTo (p0);
dc.LineTo (p1);
dc.SelectObject (pDefPen);
}
}
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涓涓濂囷紝灝監VER鍟︼紝
鍙互瀹炵幇鑷姷娑堢殑鏁堟灉鐨勮繍綆楀湪SETROP2()鏈変笁縐嶏紝
R2_NOT
R2_NOTXORPEN
R2_XORPEN

]]>