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标题: TRichEdit右键滚屏 [打印本页]

作者: 韩冰 时间: 2005-1-26 12:25
标题: TRichEdit右键滚屏

TRichEdit右键滚屏 2 P1 W. G( E# `4 x& M7 V+ l8 M7 [1 ?

void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,% w0 ]9 K* b0 L& _ TShiftState Shift, int X, int Y)0 y3 y- d! g( z, v {3 c9 e1 c+ o+ g9 @ if(RightButtonFlag) ' Y0 r: `. o1 b- h1 m{ % v/ _0 R& h: ] Gif(RightY>(Y+8)) " Q; m+ q9 n \, b# x{$ N% \$ x+ l- j& _ RightY=Y;. J" d! x. z6 c! | SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);. @; q' X+ m' i6 _1 ?9 c }" d" j8 w- Q' [7 r else if(RightY<(Y-8)), G$ Q3 v6 \: p {$ r1 s2 P8 j# \$ {' Y8 s W RightY=Y; 2 l1 f% B' _. ^- D( k3 z( j# wSendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0); , C0 W. T7 {/ u$ _, Q- m9 F1 l} 3 Z+ O$ p! G2 q+ G6 YRichEditDragFlag=true; 8 D; H7 ]; x$ p/ {} : d# J) G: u% N. D} , J# M6 D2 k ]0 {/ j N3 }& _2 S# j//--------------------------------------------------------------; A/ L% {+ `1 ?' F9 x( [ void __fastcall TMainForm::RichEditMouseDown(TObject *Sender, 6 D+ [8 T$ [2 d- LTMouseButton Button, TShiftState Shift, int X, int Y)& ]; r2 {' s* M. i) }! Q/ d2 L { ) K: ~& K7 d8 {if(Button==mbRight)2 f" A0 ~9 o. K. H. r7 x- d. m {9 \5 v* q, ?; q* T( ~) t5 K1 p. z4 u! ~ RightButtonFlag=true;1 `, M( q: Z' U) [2 X& ^ Screen->Cursor=crHandPoint;$ F- `8 B; s! }$ p) p5 _/ o/ c6 x RightX=X; , C5 P6 @1 \0 [0 D. d8 BRightY=Y; k& I8 K0 G7 x' c SetCapture(RichEdit->Handle); 9 D! i; R& m: v1 i5 k9 ?} " M7 P9 Y6 Z* a) b1 m5 Kelse( B- d3 P5 U# P; u8 \0 ] RightButtonFlag=false;+ G5 v6 N6 I7 _6 c2 r6 I } ^4 p, F9 x' v3 r; k//--------------------------------------------------------------4 m) l! }8 ^& ]% D$ ^ void __fastcall TMainForm::RichEditMouseUp(TObject *Sender,& U3 b1 h) z7 W TMouseButton Button, TShiftState Shift, int X, int Y)" a% X6 {: u2 j9 F {: Q3 R9 s/ V+ A8 {2 L4 v if(RightButtonFlag); l! l1 Z7 O8 g( B3 t ReleaseCapture();) [1 R9 L9 M- c if(RichEditDragFlag) 7 b' Q! {1 z! D3 ^1 J, a{& d+ G+ ~6 O+ K. Y RightButtonFlag=false;; K/ x3 P3 Z+ D& \ ]. x RichEditDragFlag=false; + u( X o' C. ~: p) A6 Y1 WScreen->Cursor=crDefault; _; u2 }- p/ `2 e RichEdit->opupMenu=NULL; $ s1 ^6 \$ N; P: Q) f}( o1 p1 J0 s7 z& p. O6 s/ b else0 x/ K3 M7 f p3 k, J h2 U( Z {6 D+ m9 {7 c1 o5 q5 O% a F4 J RichEdit->opupMenu=RichEditPopupMenu;) F" ]+ `4 U* c! S# A }* {5 ^/ T8 F1 i) {0 H } 3 i# L' J" q9 R% s6 |: X( [2 r

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