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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 ) h+ S a2 P& m# V" q

void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,2 y) p r6 [! {) Y4 [ TShiftState Shift, int X, int Y): p) o4 Y7 \" L! z$ D; p) H# T {' \! A4 q% T$ C$ v# a if(RightButtonFlag)9 G6 l( q+ c( d/ y7 K {5 c' w; O2 [0 Y8 h9 B* F5 f/ Y2 W if(RightY>(Y+8)) 4 o( x4 k7 d2 b, w' k+ F& @/ o{ ; F. l0 ~1 |4 k+ tRightY=Y; 3 `8 o9 i* [9 j! I0 ^7 ISendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0); 1 X7 C$ Z2 C; v6 D} 7 E" ~' b) ~3 G+ gelse if(RightY<(Y-8)) . v6 F K3 B. v, N9 C{; J& C& P" ^) R& n6 K2 o RightY=Y; + \* G8 G0 @ ?SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0);) J1 F$ S- d8 I) k }0 B& J( s; S' W5 W7 L1 _; i RichEditDragFlag=true;5 y# k. b' c3 n+ k. M2 f; s }8 G0 w4 z! w+ l2 H- \5 t* J }: ` d" c/ F# u: ^0 p6 R: d4 Y+ n1 a //--------------------------------------------------------------5 K+ W5 N7 _/ t! w7 \! i void __fastcall TMainForm::RichEditMouseDown(TObject *Sender,) q& e% `# ^/ ]) N TMouseButton Button, TShiftState Shift, int X, int Y) : m) p, a1 X) t{ 3 E p" e, @# W) ~. V0 @if(Button==mbRight)& e3 y! u- Z5 \3 P8 N1 a: _0 A { ! {2 I O4 ^" }% Y) ?3 qRightButtonFlag=true;1 g4 S2 R2 s8 T8 @9 u- A Screen->Cursor=crHandPoint; ) K: O# ~5 h& g9 O0 v! b2 x, dRightX=X; 8 ^, P' G& r# Z8 l jRightY=Y;$ L1 T8 ~1 S( W% P SetCapture(RichEdit->Handle); : C* D" u# Y% u. r} 0 P' y6 a* l0 X7 K* uelse 2 h. ^& i# L- z& s/ Q3 tRightButtonFlag=false;# y1 o6 {9 v9 t6 R) {) O' y4 g }7 v6 I9 w2 G9 { //-------------------------------------------------------------- $ `- h+ W' o$ t3 xvoid __fastcall TMainForm::RichEditMouseUp(TObject *Sender, 9 t, Y1 i! E' U/ ]1 ^! `1 QTMouseButton Button, TShiftState Shift, int X, int Y)) {0 f1 R7 m9 ]5 X { + ^, S/ ?# M: p: ?( Jif(RightButtonFlag) 7 u" }/ ?. G$ D2 `. @ mReleaseCapture(); 6 i1 y0 Z. ]3 t3 \7 s" eif(RichEditDragFlag) 2 j/ E6 V& W; v{ * N( A' Y( ?2 KRightButtonFlag=false;) P, D/ s5 V# d/ H, f( t RichEditDragFlag=false; ( O% ], s! w9 d' I6 H8 U' UScreen->Cursor=crDefault;" n' e7 @0 x( `) r# A1 H/ D5 z9 F RichEdit->opupMenu=NULL; % d6 B2 s" B7 G# m G( i4 {} $ z# _2 z5 M0 Q5 u$ p# Pelse. s3 C& y' D0 B3 P, ^ {" }4 G4 D1 ^6 k! H* U RichEdit->opupMenu=RichEditPopupMenu; - t% B0 o: U% P} , S( C& R" U' l4 q$ L: B( E} & s6 `. W5 ~+ S7 Z8 F0 }

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