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TRichEdit右键滚屏

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韩冰

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电梯直达

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发表于 2005-1-26 12:25 |只看该作者 |倒序浏览

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TRichEdit右键滚屏: K: b9 Y: q& _; G) Y6 w" Q/ X

void __fastcall TMainForm::RichEditMouseMove(TObject *Sender, 1 i, ]8 P2 G& z4 x% s. ^TShiftState Shift, int X, int Y). j; V% _. I. C { ) A% G; d( y9 G7 N& Y% Aif(RightButtonFlag) 5 K% b' N" M5 q K: v. d{( p9 U( m" h& d$ \3 m: X if(RightY>(Y+8))" R1 j$ C, F# l1 i& G$ ] { ' [% T6 U+ a+ S* Z. h4 u' S' RRightY=Y; $ @/ @- `/ G* Q1 d9 x0 j9 aSendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);& @; C j8 C5 b: U0 U }* [: _$ G1 s# S% ^* i6 Q8 O X else if(RightY<(Y-8)) + s% l5 s: H4 r, S- O; s{8 e' s/ Y9 L/ |0 ?- H RightY=Y;5 G% w) c8 _8 U( T6 ? SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0);3 Z+ w! ]9 e m& P" N) r% F6 K } 3 t; U5 f$ u6 K+ Y6 g6 {RichEditDragFlag=true; " n+ D1 S. U# @; S, M}" Z7 K- p' H. Z7 u+ q }; t; m9 b: e/ E0 ? //--------------------------------------------------------------; K( G; h' ~' m void __fastcall TMainForm::RichEditMouseDown(TObject *Sender,7 X. Z9 Z5 U5 f6 s1 U* D TMouseButton Button, TShiftState Shift, int X, int Y) # i, V) _ l' M4 O3 k2 c% {8 E( ^{ . \* _: p1 m' gif(Button==mbRight)! b( j5 }5 W% i$ v& d; Z+ C2 W* Z9 Y {& X0 I4 C& h* N m9 r RightButtonFlag=true;3 J7 E. _' {. g/ g Screen->Cursor=crHandPoint;$ R! }3 K; @+ q( l+ n RightX=X;* Q1 m- [8 ~1 d) n RightY=Y;, R2 Q4 f* r; C7 U. d SetCapture(RichEdit->Handle); / L: I, [, j2 i0 l} ) ^) v1 y7 ~) ^- G2 f7 L- @9 O" Gelse 0 v- s/ B O" e0 e+ u1 ARightButtonFlag=false; . Y Y0 _0 q5 b} + |" |1 W) B1 L& C ?7 L; v//--------------------------------------------------------------5 |9 Q& y5 M, U void __fastcall TMainForm::RichEditMouseUp(TObject *Sender,$ w7 _1 b* U! e TMouseButton Button, TShiftState Shift, int X, int Y) ( o: F% q, v! A{7 e" F4 t( c9 _ if(RightButtonFlag)8 s: b/ I/ Y8 Q( b. ?! d8 T ReleaseCapture(); 7 m$ K2 o9 K4 U" f9 _; sif(RichEditDragFlag) ! @. v1 ~' `, A! k# B{0 j9 M, g8 P. U+ b; z4 A" t RightButtonFlag=false;' n7 C8 u& M1 P: p' o$ ~4 O RichEditDragFlag=false; 9 L- G/ U) p+ Y# ? T9 y( HScreen->Cursor=crDefault;& Q% a5 Z5 P$ j. _* T. Q0 x5 x RichEdit->opupMenu=NULL;% h2 B, w D; _6 a# D } ! `2 t3 n: a' ]! V( e3 Relse 0 s) ?/ a* q6 b) f{7 I) T& J4 k. q# N0 z RichEdit->opupMenu=RichEditPopupMenu;. s/ [0 f$ D( U8 j2 P } * ^8 o. |8 ~3 x2 N} 1 p7 e* n( Y) }