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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- l9 I4 \7 `- I; d9 A9 F

void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,. C+ S# X, p0 O# G# i7 Y TShiftState Shift, int X, int Y); [" ]+ x, h7 ?+ |1 b7 R' s7 K+ w { 0 ?* P( W: z( i! Q! G) }if(RightButtonFlag)+ w6 Z' b q& l' a { + Z6 L9 Q( p* D2 Y& t: f5 {/ Dif(RightY>(Y+8)) + L4 e2 ?" b# l{ [& v; t% G( Z, Q RightY=Y; - t3 ?% x! I1 OSendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0); ) `9 Y( _6 g4 t ]5 b; L. D} : G& M2 G( J7 C1 ^6 ]3 S, x) eelse if(RightY<(Y-8)) 5 a, d- ~9 ^6 Q1 E{ ) I: ~( L3 l% C% e# ?' L3 _; mRightY=Y; ' s+ U/ @+ S- V4 ASendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0); % \1 C: ]2 V7 V} % v5 _; T0 u e7 TRichEditDragFlag=true; ( b# I9 _8 X3 x1 @} , X: f" o% x( ]3 x, V5 J* b}% h" J$ [7 W) `7 _% Z m/ y y$ q //--------------------------------------------------------------6 }7 J* w1 i* Y( M) ~8 a void __fastcall TMainForm::RichEditMouseDown(TObject *Sender, ) j( R. @+ ~4 h! }# \& I) ITMouseButton Button, TShiftState Shift, int X, int Y); p5 Z6 J) `" u1 y- X {* s/ W; V+ A6 E if(Button==mbRight)' F; T9 e! P( F* A" E+ u {: | U/ E T0 O1 T7 N, q RightButtonFlag=true; 0 d ?5 ?9 h# }6 KScreen->Cursor=crHandPoint;4 S, j; k1 |9 A6 h2 I" R RightX=X; ' C" C) P/ ]' p; u; b, E% L* ?RightY=Y;! q& \( {8 ?" T& J" L SetCapture(RichEdit->Handle); 5 F3 A) l) T8 z: W8 z} . Q( U7 `; K% ^else4 ?* p7 E( V# z1 i8 |0 V( W RightButtonFlag=false; 8 k: c8 @' E# V7 k! b}! d! x* L4 H# s //--------------------------------------------------------------6 E5 u: p+ \% ~ `- }- A void __fastcall TMainForm::RichEditMouseUp(TObject *Sender,7 p6 a d- i. p- U! ^7 v TMouseButton Button, TShiftState Shift, int X, int Y)9 Q Y3 I, W/ z. i! d% q {! K- C# N4 \" p! V9 V9 e, ~- f if(RightButtonFlag) ( F1 X! t/ ^) w J R, |# EReleaseCapture(); . a/ g( n' E6 vif(RichEditDragFlag) 9 y1 ]/ t2 ?: a1 Q; f; L, Y{2 h. K4 Y) t `* D( s* Q RightButtonFlag=false; . u! b9 y1 i- ZRichEditDragFlag=false; + l+ [; o0 m& e7 v; [" O: mScreen->Cursor=crDefault;1 @7 U( [3 D- v6 }- | RichEdit->opupMenu=NULL; % J! ~: J4 y% c8 V! h3 y" K} 9 F% X1 `0 J7 M# _: Xelse & q2 l- E6 m1 w+ i9 @7 t" g{ 8 |7 F% [8 a- R* W# `/ O1 `) SRichEdit->opupMenu=RichEditPopupMenu; 5 n. \/ G8 J _} 4 `% p" u8 G' }0 m4 l- k} , \# n/ ]( M8 D/ U/ C