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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 |正序浏览

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TRichEdit右键滚屏. I, z8 \! N1 ~

void __fastcall TMainForm::RichEditMouseMove(TObject *Sender, 1 K, ]% @2 D' H) n5 QTShiftState Shift, int X, int Y)- f7 Q' ~& U8 h {# V8 E8 k8 U% l if(RightButtonFlag)% H/ {* ?- Y6 D4 ~( S. R {6 C$ E* k- i) b- q' ?4 F if(RightY>(Y+8)) s9 u1 K3 \7 l& p7 k$ d5 b {4 f; \* q: y6 V; S$ F- w9 R3 U RightY=Y; . L: o: G4 I7 T; F. W% K: H& |+ t1 ^SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0); 5 n6 S: R/ I, q- r# S} / m: Z& x# O+ helse if(RightY<(Y-8)): @/ A3 F' q; ?* V" m' k. o/ y1 E {: b, l1 M7 V) E3 j2 ` RightY=Y; z4 z6 \# A5 T% Q8 [& f0 XSendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0);6 T& e& H3 ^* w8 F& R8 t: X% H }5 H. b; t; B& ?! a+ K% Q RichEditDragFlag=true;8 b# r, M3 x- K! r4 \ }: j& T/ U( k( g0 m% z } % j+ l; g6 c9 @3 a) {/ y, ]//--------------------------------------------------------------7 j9 m! ?5 P2 {/ x: h, _6 c void __fastcall TMainForm::RichEditMouseDown(TObject *Sender, ' p! X6 X2 D/ u: A2 Y& ^4 tTMouseButton Button, TShiftState Shift, int X, int Y)6 |; C) t# F- T' |! C# b { " K# M# _) i/ b4 Z" f* n' z; Lif(Button==mbRight) ( c( j& o! C& d- ~2 g4 F8 Z{$ W9 L6 r, c1 D RightButtonFlag=true;5 k1 \- y1 @5 a' ?. O# J Screen->Cursor=crHandPoint;. t+ S- \% i+ y4 z6 Y RightX=X;9 W" x/ [0 e) E9 p# l \ RightY=Y; ( O9 i a- k7 M, s/ }# s1 c( a( Q0 j$ uSetCapture(RichEdit->Handle); 2 d4 ^, D5 P( _8 N0 n4 k}% `* ?, D) [0 c& H5 C( U+ Z else & J0 U! L! ~6 H! HRightButtonFlag=false;( K" \5 o1 ` M! g/ x+ ? }& d# z( W( t2 p# Q* @( z5 X' E //-------------------------------------------------------------- , o- x) \8 A4 E$ dvoid __fastcall TMainForm::RichEditMouseUp(TObject *Sender,& g( ~) I; D$ A TMouseButton Button, TShiftState Shift, int X, int Y) a" Z( r; D( R1 l{ 5 i; d$ _$ X& ~' X" aif(RightButtonFlag)2 i8 L9 o9 Q( E# }# d# k2 I ReleaseCapture();, B4 p2 ]3 a( p `6 I& ` if(RichEditDragFlag)+ P* e: T$ I6 z6 w& t Z {0 c \1 H1 u8 @6 n- F3 R RightButtonFlag=false;6 D; X: ]- |4 a+ i6 v! ] RichEditDragFlag=false; # a' x! D. u2 M; YScreen->Cursor=crDefault; 0 [9 l2 v, Z' t- [7 t. `RichEdit->opupMenu=NULL;, Q- B9 |8 K2 w } ' w) S$ q5 I/ I0 W+ G' Melse* C5 e/ W# l( s9 U {# K$ x9 D* g8 L* ^! q; I RichEdit->opupMenu=RichEditPopupMenu; $ c* o5 P) k: c' [/ w}* u. ~' W$ i7 K e } 4 N% |% q9 C4 ]. r9 |