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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2 l `4 i! X/ j5 I; d" c

void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,8 ]4 U/ R, N4 z4 T) `% ^% [5 A TShiftState Shift, int X, int Y)+ D8 l. b' {) Y d$ l { . k, r! y% [% Q+ M4 Cif(RightButtonFlag) & V; J( k1 o$ V# J8 a/ H. H{ $ y2 L3 X2 c) x5 Sif(RightY>(Y+8))0 G6 J+ M; g! E* s' S9 b# p { ) { s" u) p& m* v3 T9 K7 ?RightY=Y; : _/ h; H T) \+ _& {3 ?6 M7 LSendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);% X% Y: s+ _* I" f# x! a5 [ } % B( q9 J! R! K: v; ]$ q& k+ [* felse if(RightY<(Y-8)) # l# Q$ ?5 Z7 @! _{ , w" N/ C: |( P/ q" ~* fRightY=Y;. v6 k, u* W8 G: [/ D SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0); 5 k: o9 @% e0 E+ I}6 M G) \6 v! k% F) d RichEditDragFlag=true; 0 r3 b+ o: m: m: o; _4 p} ) p' W6 |& j! C# X# b* p} 9 Q( j9 Q* D6 _8 H: Q9 ~- J//-------------------------------------------------------------- $ _ e$ |7 b& Y( m# ~* Yvoid __fastcall TMainForm::RichEditMouseDown(TObject *Sender,5 q8 x; f2 S) K: i TMouseButton Button, TShiftState Shift, int X, int Y) + G9 G$ w) |2 ?" b/ T- g6 g{ 2 j6 _1 T2 Y$ x K- vif(Button==mbRight) ' H9 R" U) T0 U" {. f) E3 O1 W{ 9 N$ p7 l2 w% |RightButtonFlag=true;: l4 b, Q4 A' R& L; D Screen->Cursor=crHandPoint;/ _7 {) w) X' B+ T RightX=X;6 x. |. V2 d% W0 s1 I0 ]' _ RightY=Y; % |7 {, Q- \% wSetCapture(RichEdit->Handle);% _5 Y3 J( l7 g0 U4 \ }' D* W/ h0 p& h: ?. P else 2 m/ C& q0 d& LRightButtonFlag=false; 0 E! k8 y, y' T7 V0 I} - p! |8 U! H/ D//-------------------------------------------------------------- ( e! [# H% c9 `% k( Y4 G/ U6 pvoid __fastcall TMainForm::RichEditMouseUp(TObject *Sender, 6 }; V: z3 A0 d' A9 \ q, dTMouseButton Button, TShiftState Shift, int X, int Y)- Q$ [, ^# e; T7 [2 {! {" ~ { 1 \$ C; E& Y% k$ e) k9 rif(RightButtonFlag) , }1 G# t/ Q! T! }' G" K: \0 t7 ]ReleaseCapture(); , w# a3 V2 g7 e. Gif(RichEditDragFlag) ( Y/ w( y! s* w; ~: s2 |{7 u: [0 n+ h! e& ?5 f( j2 e4 B RightButtonFlag=false;6 z9 ?$ P+ |( N RichEditDragFlag=false; " [% i2 I" \5 C: r1 M8 H1 ~Screen->Cursor=crDefault; # ^: o/ m) \# t0 m# d' FRichEdit->opupMenu=NULL; / [' E4 g. W; Y% L} ' b' ?+ \* w6 ` h* Q( z* ielse' h: H0 v0 b# J8 w* K& W- b {7 Y) P' v y& `9 P RichEdit->opupMenu=RichEditPopupMenu; 0 ?$ {2 j( ?+ _$ E4 u}) I1 |' A& A2 j* | } ! J% y0 x+ y. ^* q7 `- W2 P