TRichEdit右键滚屏
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
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if(RightButtonFlag)9 G6 l( q+ c( d/ y7 K
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if(RightY>(Y+8))
{
RightY=Y;
SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEDOWN, 0);
}
else if(RightY<(Y-8))
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RightY=Y;
SendMessage(RichEdit->Handle, EM_SCROLL, SB_LINEUP, 0);) J1 F$ S- d8 I) k
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RichEditDragFlag=true;5 y# k. b' c3 n+ k. M2 f; s
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//--------------------------------------------------------------5 K+ W5 N7 _/ t! w7 \! i
void __fastcall TMainForm::RichEditMouseDown(TObject *Sender,) q& e% `# ^/ ]) N
TMouseButton Button, TShiftState Shift, int X, int Y)
{
if(Button==mbRight)& e3 y! u- Z5 \3 P8 N1 a: _0 A
{
RightButtonFlag=true;1 g4 S2 R2 s8 T8 @9 u- A
Screen->Cursor=crHandPoint;
RightX=X;
RightY=Y;$ L1 T8 ~1 S( W% P
SetCapture(RichEdit->Handle);
}
else
RightButtonFlag=false;# y1 o6 {9 v9 t6 R) {) O' y4 g
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//--------------------------------------------------------------
void __fastcall TMainForm::RichEditMouseUp(TObject *Sender,
TMouseButton Button, TShiftState Shift, int X, int Y)) {0 f1 R7 m9 ]5 X
{
if(RightButtonFlag)
ReleaseCapture();
if(RichEditDragFlag)
{
RightButtonFlag=false;) P, D/ s5 V# d/ H, f( t
RichEditDragFlag=false;
Screen->Cursor=crDefault;" n' e7 @0 x( `) r# A1 H/ D5 z9 F
RichEdit->
opupMenu=NULL;
}
else. s3 C& y' D0 B3 P, ^
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RichEdit->
opupMenu=RichEditPopupMenu;
}
} & s6 `. W5 ~+ S7 Z8 F0 }
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