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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4 ~; `1 b$ ?$ a" t/ d

void __fastcall TMainForm::RichEditMouseMove(TObject *Sender, ; U: o0 W9 N ]9 M: i2 JTShiftState Shift, int X, int Y)6 h `8 N; d9 N4 F {6 f! a9 o: P# O if(RightButtonFlag) 4 u) A2 F0 {- W3 s8 D# a{ - _3 W# P' r& Z+ Aif(RightY>(Y+8)) # a3 V# j4 r* t& d, G& i& G5 s! \{ 6 D1 K( [4 g+ K% ?/ u& b* \, bRightY=Y; $ g( P# J& e; u dSendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0); 0 m6 \+ w6 i6 A1 v- v1 n} 2 i5 M% c9 ^9 V& delse if(RightY<(Y-8))& T3 V( `8 G" u p$ | {: \7 w2 c4 a4 V) T( G, F RightY=Y;) u4 B' q4 L# D. } SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0);# p4 M V+ c( h% n } , m$ E3 p4 s# ]RichEditDragFlag=true; + b7 `/ U3 b3 P( a}( z- e8 s, W/ A }1 |: L% u( f; c: s7 s$ m0 x //--------------------------------------------------------------; S; Z5 X U. R void __fastcall TMainForm::RichEditMouseDown(TObject *Sender, & n& D8 i' Z( r2 V% kTMouseButton Button, TShiftState Shift, int X, int Y) " W$ N5 ~$ y) ]; S{6 j& ~. }) R- S2 p5 F! m5 |% N { if(Button==mbRight) # F- M$ k0 ~; Y3 A f. F; I{ & o/ A) }2 F! Y1 J- o! @3 `7 [) wRightButtonFlag=true;' w" n) f( ^1 V; e4 T Screen->Cursor=crHandPoint;) v. _8 c d5 V0 t RightX=X;+ ?- J0 I% S8 ~9 {' A7 ~4 ?: x RightY=Y; / B9 R S, z5 z, a+ qSetCapture(RichEdit->Handle); # X# D9 S& c: ~# u} 1 L0 Z0 J& q1 J8 b5 b* O( p2 Xelse & O5 O3 u. K, D+ B2 i& ^8 QRightButtonFlag=false;" R. t& h* U# W* G4 _+ G }! o q+ s1 k3 V //-------------------------------------------------------------- ) E1 |- h# r8 Dvoid __fastcall TMainForm::RichEditMouseUp(TObject *Sender,& O) a" }5 g% C TMouseButton Button, TShiftState Shift, int X, int Y) / ~8 \5 P/ N' P5 V$ U1 l4 @{; {8 n$ D$ i+ p, ]4 B8 ` if(RightButtonFlag)' _" K+ E# d& P/ Y" K$ {; w ReleaseCapture();9 I& Z! R9 Q6 N! f$ S if(RichEditDragFlag)) X4 x& ~' P! A. a9 f+ p6 [ { % X: q9 q2 `- k* p& i& }% DRightButtonFlag=false;) w) U% i3 I8 b. f9 A RichEditDragFlag=false; 9 w. Y" b0 O; M6 l mScreen->Cursor=crDefault;6 e8 Y7 W3 }1 Z5 b' w0 k' s. E6 p* V RichEdit->opupMenu=NULL; . c$ M' o# s. k& L6 Y6 o( K}3 g; Q' B; w6 k- _7 z4 i' H8 ^* g( C else 1 o' K: }! L& h5 |1 j, j1 k{& L, w7 U. |3 @1 @3 J RichEdit->opupMenu=RichEditPopupMenu;" T p; k1 M: |" f }0 e5 o t0 m& S' i! u } 8 v- f( U! y* M6 G. w# T

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