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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5 E) P3 D+ N% U. z8 g; k* ?

void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,9 N+ Z) H) j( L3 [ TShiftState Shift, int X, int Y)" {% a; t& v+ _7 y) _ { , h7 h6 D* ~, @- u$ [' Q6 o9 O7 k( o' fif(RightButtonFlag) & R6 o# i5 ~9 n! @9 Z, _; q{0 r' i, H2 l* p! `# s if(RightY>(Y+8))8 c+ {) n+ X- M, h: B& E { E; {3 X! J! K2 [3 uRightY=Y; 2 S$ z9 z: Y2 u& ^( b2 B/ ^SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);# c& t# R/ z. L- h$ v# _1 j( I } ; T; }1 e6 h; v: k7 J2 Selse if(RightY<(Y-8))/ A6 y4 V9 P' D( d% |6 ~ { / N1 s! |( }- P$ X% q6 `# NRightY=Y;2 H6 M# H% P s# T( p9 p% m3 H SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0); 1 v+ T2 v5 W2 B' l e4 x1 S}2 l$ N: }7 e Q, u8 [6 w- i RichEditDragFlag=true;: e; F* y& A2 V& x! m } 1 M9 d4 m t5 [}2 A- Y$ X5 k1 t9 K& m( F //--------------------------------------------------------------$ P6 s) B2 Y3 W1 Z: a* b+ j& {- g, q void __fastcall TMainForm::RichEditMouseDown(TObject *Sender,; t2 A& i) V! d% ]2 _& Z TMouseButton Button, TShiftState Shift, int X, int Y)# ]% S8 R/ m# g/ L1 d' E9 [ { ) o2 h- j6 Y" k3 Q$ Eif(Button==mbRight) " F4 M' S$ |# l{ # a- J2 J5 g) B8 S3 L+ q+ JRightButtonFlag=true;' o k; @, O5 n" _% Z9 n- b5 X Screen->Cursor=crHandPoint;; v5 Q ^2 ^; D- r" X6 ]8 Y0 _( E RightX=X;3 C9 L) j7 n- Z* P5 G: r) B# u$ x7 _ RightY=Y; 8 m% y) Y: u0 g4 n8 Z, ~ k2 |( S$ F) ZSetCapture(RichEdit->Handle); # q$ @' ?- Q% T} * r `0 [% z0 W1 pelse0 w* q# f3 W" t0 z! V( p0 _! { } RightButtonFlag=false; % i) j! z u P7 n} % D5 t; D4 |- c0 ^8 I; [- r% Q//-------------------------------------------------------------- 4 k) m$ H3 M; C1 Avoid __fastcall TMainForm::RichEditMouseUp(TObject *Sender,* N/ P5 z4 C8 f/ g! s) n8 j TMouseButton Button, TShiftState Shift, int X, int Y)) v f( S: v$ P! \' Y( Q+ q { ! N( V+ i A oif(RightButtonFlag)$ Q% Y3 \ I; u1 t7 [3 f& S ReleaseCapture();/ |$ N y" ^4 j/ [- S8 k& y7 O+ m if(RichEditDragFlag)" a$ p, p$ {2 V1 V {( n& x/ [9 [+ r1 O: k RightButtonFlag=false;* M- R# H, R& V, l7 {4 g RichEditDragFlag=false;, h8 J0 b; G! h6 X5 m! s Screen->Cursor=crDefault;( b# D9 \' r" r( M RichEdit->opupMenu=NULL;- L& @$ P( r: |. L+ @& q: I& h } 5 I' K+ B4 N) ?- K- i; `0 velse2 n1 M! {* I2 l! F4 i1 G { 6 b0 j5 s; G* P, ~: k {( YRichEdit->opupMenu=RichEditPopupMenu;( |4 L* \- D5 A0 `& T }! B9 K. a* k$ Q. j7 U" o% g& S) t } & r# y8 l+ D1 B, U2 b/ h6 P