TRichEdit右键滚屏
void __fastcall TMainForm::RichEditMouseMove(TObject *Sender,
TShiftState Shift, int X, int Y)
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if(RightButtonFlag)
{
if(RightY>(Y+8))# |. |! ~7 _7 d- T4 k, C+ g
{) u+ ?; T/ I: j o( c
RightY=Y;, Z1 v% \0 z4 c9 H* F) t( [8 r |' O
SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);
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else if(RightY<(Y-8))
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RightY=Y;
SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0);
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RichEditDragFlag=true;8 _1 e% ~' n1 W1 Q) ]5 v! I$ K N
}
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//--------------------------------------------------------------2 \* u1 J W+ S7 |
void __fastcall TMainForm::RichEditMouseDown(TObject *Sender,* l- b! [0 f+ c- O
TMouseButton Button, TShiftState Shift, int X, int Y)
{
if(Button==mbRight); [. }# n- {6 ]; D. C5 y2 f
{
RightButtonFlag=true;
Screen->Cursor=crHandPoint;. T8 `* h7 [3 z2 V- D x/ j
RightX=X;
RightY=Y;% p: \ o1 ^/ ]8 M
SetCapture(RichEdit->Handle);7 n2 K- ?7 Z/ V2 N6 T9 r% ~8 Z5 r
}
else
RightButtonFlag=false;4 L2 n, i8 a/ K6 O
}
//--------------------------------------------------------------/ b+ B- k# i* r$ c/ r( b& N- c
void __fastcall TMainForm::RichEditMouseUp(TObject *Sender,& X# D7 _; \) {+ k$ d7 R: x! f; Y
TMouseButton Button, TShiftState Shift, int X, int Y)! Q* f$ s- g* d' Z! r2 Z
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if(RightButtonFlag)1 W& c0 i1 r6 v5 S t7 C
ReleaseCapture();
if(RichEditDragFlag); E, Y$ B: N- i
{
RightButtonFlag=false;
RichEditDragFlag=false;
Screen->Cursor=crDefault;+ H& @) s8 E! x% H- @
RichEdit->
opupMenu=NULL;" t9 y: r' ^3 O: B5 M: {
}
else0 }% c' t# `( _: Z
{
RichEdit->
opupMenu=RichEditPopupMenu;4 y4 I$ d' c5 v9 b3 D0 i5 r
}
}
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