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TRichEdit右键滚屏

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韩冰

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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+ J8 C# u& X- c# F) @3 I' g

void __fastcall TMainForm::RichEditMouseMove(TObject *Sender, * y) v6 J! h. o2 h' w" j0 l. ?6 rTShiftState Shift, int X, int Y)! r( v% v( @. L0 w% e, d7 t { ! P# D$ T: V: L3 _3 ~! }; d/ a( P% bif(RightButtonFlag) ! B5 a( V3 G9 `7 K{; k+ R. A3 a3 \# \. ] if(RightY>(Y+8))2 D: G- b) l- u- R% {7 \) S4 @ { 7 }- H2 t1 N6 z; _( R( kRightY=Y;; d& Z- x. ^5 [( m4 G6 a SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0); ) u1 y6 p& W$ h9 {4 m5 W/ k} ; g- ?" Z, ?. S8 j5 melse if(RightY<(Y-8))& N5 z. ~5 O/ X2 K {: x2 @5 Z+ M+ q% ?( g) r RightY=Y;- h' l0 O y. k( U' u SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0); % |: i; L* G0 V/ N( {. n}" x1 v& K5 P9 ~; v4 F; I0 u) N$ r RichEditDragFlag=true;. X3 ?# e$ ?1 l2 M' V" @! Y } 4 ]! q" i& V' Y, E& `+ V' r} 0 S1 Q7 N* M8 z/ v! I" P) D//--------------------------------------------------------------$ ~) x, U' D1 y* A0 s void __fastcall TMainForm::RichEditMouseDown(TObject *Sender,: l3 c% A) i- N( ] TMouseButton Button, TShiftState Shift, int X, int Y) ( l7 J( M( H. E3 A5 e2 D/ ~2 W7 _{ : N2 |; o6 a/ ^- W4 y- G% a- Wif(Button==mbRight)) D' C# C8 m5 H5 v* ? {& Y( _0 M( \, B+ `0 x RightButtonFlag=true;/ Y) Z2 `- t7 Y1 j; q Screen->Cursor=crHandPoint;- F7 ?& F4 U; T: S% [3 O1 y RightX=X; . Z! {6 f& Q0 E# {( z) j5 DRightY=Y; ) I# o: {3 a4 K0 sSetCapture(RichEdit->Handle);9 S: G) f* l' A+ V7 ]$ l ? }+ j4 \3 a% b6 v else1 H' u8 u) s; k- E" i RightButtonFlag=false;$ |4 o( ]- {1 w1 ^/ N } + I! K9 U- y' m9 |( o7 ~//--------------------------------------------------------------' b& z$ |* N2 D void __fastcall TMainForm::RichEditMouseUp(TObject *Sender,% b R$ ~. g) z& u TMouseButton Button, TShiftState Shift, int X, int Y) ) }, e3 P) n3 R" |" P{7 \7 V( R" z3 V$ Q3 e% [ if(RightButtonFlag)3 c. j& Z5 O N2 N& R ReleaseCapture();! S+ I7 |& v% U, [5 w& V if(RichEditDragFlag) ( G2 N0 C" \: ]: J; `: c' J{ 9 \! _8 A9 d5 c( P; [ X+ HRightButtonFlag=false; 4 A1 O1 r% X1 IRichEditDragFlag=false;/ P, R, y8 r: D0 E1 b2 o. ? Screen->Cursor=crDefault; ; @( U1 `9 e( \( O' [0 e! BRichEdit->opupMenu=NULL;/ E! Q) e* U, D f4 O U+ d } # V# G3 ~( T! ]3 G# Relse & q/ u5 e! F# G4 Y* R0 }* i& |% W{5 A/ }1 G5 V) W8 [ RichEdit->opupMenu=RichEditPopupMenu; ~( i5 t& l0 l6 V- ]5 W2 l}1 B4 x9 g, d& S# s } , C L* _1 D) l$ U- w7 D