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TRichEdit右键滚屏1 O% L9 K O$ j) P" D6 o
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void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,+ i s8 M1 V4 Z$ J* r* ~, E
TShiftState Shift, int X, int Y)+ y& o4 F `& P- D( b1 X, b
{
) a8 e3 M4 W, J s$ H2 `" Dif(RightButtonFlag)
% U" Y2 \7 @$ ?, ~{
$ p* U" ?3 ?( o) e; t. n! Xif(RightY>(Y+8))
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, t; R+ `% Q5 W" zRightY=Y;
5 v( A, s# N1 q1 _6 @% R3 {* F6 fSendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);+ H/ ?, H p% J4 r3 p( L+ i6 i
}
. c3 F5 o L- H% x) A! {% ?& telse if(RightY<(Y-8))
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RightY=Y;
% h, w4 K) R# q7 O1 j5 wSendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0);
& V# a2 S9 W. a# b ^}
) d) B1 q6 B$ K, |" U! ORichEditDragFlag=true;
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4 M& N& q: B7 l+ B" M& q//--------------------------------------------------------------! }! p8 `. ~; u( V. T& `
void __fastcall TMainForm::RichEditMouseDown(TObject *Sender,
2 T( O3 d z8 {7 mTMouseButton Button, TShiftState Shift, int X, int Y)6 |: K3 t4 |% a3 `6 w; z
{
" l: X+ ~7 X2 o& ^if(Button==mbRight)9 G1 X, j# f) D2 D n8 k7 S' a
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RightButtonFlag=true;
3 q+ ?) o% |* h: zScreen->Cursor=crHandPoint;
1 U* N7 A2 ^/ d4 W% r; a$ IRightX=X;
( M }* n6 e# i- @$ b- ^( \RightY=Y; _- M t D( M$ g! @+ D9 d
SetCapture(RichEdit->Handle);7 N3 ^" B" i' s& ~5 J. Z/ V
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RightButtonFlag=false;" }, b& W" q6 I$ l# t, x3 ]; l1 t
}
5 \" N& f9 ^6 |( F# e//--------------------------------------------------------------
6 j' ]/ d$ s5 G- Q1 Q' hvoid __fastcall TMainForm::RichEditMouseUp(TObject *Sender,
: w! q8 o K9 T4 N' W5 UTMouseButton Button, TShiftState Shift, int X, int Y)6 f/ S; T2 i7 L. ?
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if(RightButtonFlag)
$ E1 `( t1 k" N! p6 Z: o" P: U {ReleaseCapture();
9 u; y, _ o5 ?7 `! |( M& |+ Aif(RichEditDragFlag)
4 @4 T) I# f% W8 v, p! ?{
% S% F0 L7 @' o! S; ~5 i+ o3 g# ?4 O- SRightButtonFlag=false;
+ ^+ S- C. ?+ _' a. k5 RRichEditDragFlag=false;& Z- N. w. m" A4 g
Screen->Cursor=crDefault;
- R" P. h+ b4 ]' HRichEdit-> opupMenu=NULL;
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RichEdit-> opupMenu=RichEditPopupMenu;
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