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TRichEdit右键滚屏
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void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,8 Z8 l. |# [ ^* c0 p6 o
TShiftState Shift, int X, int Y)
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if(RightButtonFlag)
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! z: @% R( _( X' |if(RightY>(Y+8))
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; b: `1 w) v& }& \8 O, d* D# d, IRightY=Y;* ^+ [7 S. y6 {% f2 P& S- A6 M: s, t: x
SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);
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2 C# z' E- n7 W/ |5 [: C* h9 Uelse if(RightY<(Y-8))' w9 }0 J- n D2 V
{
3 r* j: a$ d8 B$ dRightY=Y;
8 z! a" ]6 p5 ~+ J6 k1 d! {SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0);
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RichEditDragFlag=true;, o9 w6 G- Q- ?+ l' a* n C% L0 X
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}
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void __fastcall TMainForm::RichEditMouseDown(TObject *Sender,
$ W! s5 J- B% \1 n1 BTMouseButton Button, TShiftState Shift, int X, int Y)' H& m9 {* n# `- H9 w
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if(Button==mbRight)- ~8 l0 m4 n- I; g% g* m
{
2 z8 r4 K# _1 F& }, I! ?" }RightButtonFlag=true;
4 G: y; p2 v3 H" ^; P# X& iScreen->Cursor=crHandPoint;
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RightY=Y;0 f# A: v" b& c# b
SetCapture(RichEdit->Handle);% T- n4 P9 M% x" Z) c( |, r8 P
}
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RightButtonFlag=false;
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//--------------------------------------------------------------2 Q' V" B5 R- X
void __fastcall TMainForm::RichEditMouseUp(TObject *Sender,
- g6 I f! M. o5 O! r; m0 }TMouseButton Button, TShiftState Shift, int X, int Y)
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if(RightButtonFlag)$ x: O1 A+ f8 b& [0 ^1 w0 |5 l
ReleaseCapture();
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{
0 G2 H% y, `4 A+ o+ _RightButtonFlag=false;
$ D0 X! a5 `6 @RichEditDragFlag=false;
! @% v/ o9 b/ {2 B* \* {# H! [) WScreen->Cursor=crDefault;
% s7 ^- s7 q2 w# uRichEdit-> opupMenu=NULL;3 _( Q* \. z3 v$ p8 ?9 _1 Y9 q
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else
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RichEdit-> opupMenu=RichEditPopupMenu;
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