引言: Hello benson5033, 請參考底下連結: http://delphi.ktop.com.tw/topic.php?topic_id=24879

benson5033：
當MouseMove，MouseUp，MouseDown事件產生時，以MouseDown為例
void __fastcall TForm1::Image1MouseDown(TObject *Sender,
      TMouseButton Button, TShiftState Shift, int X, int Y)
{
  //按下Mouse左鍵ssLeft及Shift鍵ssShift
  if ( Shift.Contains(ssLeft) && Shift.Contains(ssShift))
    // 處理之.....
}    ssShift          The Shift key is held down.
ssAlt          The Alt key is held down.
ssCtrl          The Ctrl key is held down.
ssLeft          The left mouse button is held down.
ssRight          The right mouse button is held down.
ssMiddle          The middle mouse button is held down.
ssDouble          The mouse was double-clicked.
BCB Help的TShiftState type查一下
請參考！

引言: benson5033你好： 試試VK_APPS

 
http://www.delphi-source.de/grundlagen/codes/vks.php    Virtuelle Tastencodes
(in OnKeyDown und OnKeyUp verwendet)    Konstante Hex. Taste 
VK_LBUTTON 01 Linke Maustaste 
VK_RBUTTON 02 Rechte Maustaste 
CK_CANCEL 03 STRG Untbr-Tasten 
VK_MBUTTON   Mittlere Maustaste 
VK_BACK 08 BACKSPACE-Taste 
VK_TAB 09 TAB-Taste 
VK_CLEAR   Taste L飉chen 
VK_RETURN 0D Return-Taste 
VK_SHIFT 10 Shift-Taste 
VK_CONTROL 11 Strg-Taste 
VK_MENU 12 ALT-Taste 
VK_PAUSE 13 Pause-Taste 
VK_CAPITAL 14 CAPS LOCK-Taste 
VK_ESCAPE 1B ESC-Taste 
VK_SPACE 20 Leertaste 
VK_PRIOR 21 Bild nach oben-Taste 
VK_NEXT 22 Bild nach unten-Taste 
VK_END 23 Ende-Taste 
VK_HOME 24 Pos1-Taste 
VK_LEFT 25 Cursortaste links 
VK_UP 26 Cursortaste oben 
VK_RIGHT 27 Cursortaste rechts 
VK_DOWN 28 Cursortaste unten 
VK_SELECT 29 Taste Select 
VK_PRINT 2A Taste Druck (tastaturspezifisch) 
VK_EXECUTE 2B Taste Ausf?ren 
VK_SNAPSHOT 2C Druck-Taste 
VK_INSERT 2D Einfg-Taste 
VK_DELETE 2E Entf-Taste 
VK_HELP   Hilfe-Taste 
VK_LWIN   Linke Windows-Taste (Microsoft-Tastatur) 
VK_RWIN   Rechte Windows-Taste (Microsoft-Tastatur) 
VK_APPS   Anwendungstaste (Microsoft-Tastatur) 
VK_0 30 Taste 0 
VK_1 31 Taste 1 
VK_2 32 Taste 2 
VK_3 33 Taste 3 
VK_4 34 Taste 4 
VK_5 35 Taste 5 
VK_6 36 Taste 6 
VK_7 37 Taste 7 
VK_8 38 Taste 8 
VK_9 39 Taste 9 
VK_A 41 Taste A 
VK_B 42 Taste B 
VK_C 43 Taste C 
VK_D 44 Taste D 
VK_E 45 Taste E 
VK_F 46 Taste F 
VK_G 47 Taste G 
VK_H 48 Taste H 
VK_I 49 Taste I 
VK_J 4A Taste J 
VK_K 4B Taste K 
VK_L 4C Taste L 
VK_M 4D Taste M 
VK_N 4E Taste N 
VK_O 4F Taste O 
VK_P 50 Taste P 
VK_Q 51 Taste Q 
VK_R 52 Taste R 
VK_S 53 Taste S 
VK_T 54 Taste T 
VK_U 55 Taste U 
VK_V 56 Taste V 
VK_W 57 Taste W 
VK_X 58 Taste X 
VK_Y 59 Taste Y 
VK_Z 5A Taste Z 
VK_NUMPAD0 60 Numerisches Tastenfeld, Taste 0 
VK_NUMPAD1 61 Numerisches Tastenfeld, Taste 1 
VK_NUMPAD2 62 Numerisches Tastenfeld, Taste 2 
VK_NUMPAD3 63 Numerisches Tastenfeld, Taste 3 
VK_NUMPAD4 64 Numerisches Tastenfeld, Taste 4 
VK_NUMPAD5 65 Numerisches Tastenfeld, Taste 5 
VK_NUMPAD6 66 Numerisches Tastenfeld, Taste 6 
VK_NUMPAD7 67 Numerisches Tastenfeld, Taste 7 
VK_NUMPAD8 68 Numerisches Tastenfeld, Taste 8 
VK_NUMPAD9 69 Numerisches Tastenfeld, Taste 9 
VK_MULTIPLY 6A Multiplikationstaste 
VK_ADD 6B Additionstaste 
VK_SEPARATOR 6C Taste . (numerischer Tastaturblock) 
VK_SUBTRACT 6D Subtraktionstaste 
VK_DECIMAL 6E Taste , (numerischer Tastaturblock) 
VK_DIVIDE 6F Divisionstaste 
VK_F1 70 F1-Taste 
VK_F2 71 F2-Taste 
VK_F3 72 F3-Taste 
VK_F4 73 F4-Taste 
VK_F5 74 F5-Taste 
VK_F6 75 F6-Taste 
VK_F7 76 F7-Taste 
VK_F8 77 F8-Taste 
VK_F9 78 F9-Taste 
VK_F10 79 F10-Taste 
VK_F11 7A F11-Taste 
VK_F12 7B F12-Taste 
VK_NUMLOCK 90 NUM LOCK-Taste 
VK_SCROLL 91 SCROLL LOCK-Taste 
VK_LSHIFT   Linke Umschalt-Taste (nur mit GetAsyncKeyState und GetKeyState verwendet) 
VK_RSHIFT   Rechte Umschalt-Taste (nur mit GetAsyncKeyState und GetKeyState verwendet) 
VK_LCONTROL   Linke Strg-Taste (nur mit GetAsyncKeyState und GetKeyState verwendet) 
VK_RCONTROL   Rechte Strg-Taste (nur mit GetAsyncKeyState und GetKeyState verwendet) 
VK_LMENU   Linke Alt-Taste (nur mit GetAsyncKeyState und GetKeyState verwendet) 
VK_RMENU   Rechte Alt-Taste (nur mit GetAsyncKeyState und GetKeyState verwendet) 
VK_PROCESSKEY   Taste Process 
VK_ATTN   Taste Attn 
VK_CRSEL   Taste CrSel 
VK_EXSEL   Taste ExSel 
VK_EREOF   Taste Erase EOF 
VK_PLAY   Taste Play 
VK_ZOOM   Taste Zoom 
VK_NONAME   Reserviert f? zuk?ftigen Gebrauch 
VK_PA1   Taste PA1 
VK_OEM_CLEAR   Taste Clear         TShiftState
(in OnKeyDown, OnKeyUp, OnMouseDown, OnMouseUp und OnMouseMove verwendet)    Wert Bedeutung 
ssShift Die Taste Umschalt wird gedr?kt gehalten. 
ssAlt Die Taste Alt wird gedr?kt gehalten. 
ssCtrl Die Taste Strg wird gedr?kt gehalten. 
ssLeft Die linke Maustaste wird gedr?kt gehalten. 
ssRight Die rechte Maustaste wird gedr?kt gehalten. 
ssMiddle Die mittlere Maustaste wird gedr?kt gehalten. 
ssDouble Es wurde mit der Maus doppelgeklickt.     http://dev.csdn.net/Develop/article/33/33985.shtm
鍵盤VK值列表
/*
 * Virtual Keys, Standard Set
 */
#define VK_LBUTTON        0x01
#define VK_RBUTTON        0x02
#define VK_CANCEL         0x03
#define VK_MBUTTON        0x04    /* NOT contiguous with L & RBUTTON */
#define VK_BACK           0x08
#define VK_TAB            0x09
#define VK_CLEAR          0x0C
#define VK_RETURN         0x0D
#define VK_SHIFT          0x10
#define VK_CONTROL        0x11
#define VK_MENU           0x12
#define VK_PAUSE          0x13
#define VK_CAPITAL        0x14
#define VK_KANA           0x15
#define VK_HANGEUL        0x15  /* old name - should be here for compatibility */
#define VK_HANGUL         0x15
#define VK_JUNJA          0x17
#define VK_FINAL          0x18
#define VK_HANJA          0x19
#define VK_KANJI          0x19
#define VK_ESCAPE         0x1B
#define VK_CONVERT        0x1C
#define VK_NONCONVERT     0x1D
#define VK_ACCEPT         0x1E
#define VK_MODECHANGE     0x1F
#define VK_SPACE          0x20
#define VK_PRIOR          0x21
#define VK_NEXT           0x22
#define VK_END            0x23
#define VK_HOME           0x24
#define VK_LEFT           0x25
#define VK_UP             0x26
#define VK_RIGHT          0x27
#define VK_DOWN           0x28
#define VK_SELECT         0x29
#define VK_PRINT          0x2A
#define VK_EXECUTE        0x2B
#define VK_SNAPSHOT       0x2C
#define VK_INSERT         0x2D
#define VK_DELETE         0x2E
#define VK_HELP           0x2F
/* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
/* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
#define VK_LWIN           0x5B
#define VK_RWIN           0x5C
#define VK_APPS           0x5D
#define VK_NUMPAD0        0x60
#define VK_NUMPAD1        0x61
#define VK_NUMPAD2        0x62
#define VK_NUMPAD3        0x63
#define VK_NUMPAD4        0x64
#define VK_NUMPAD5        0x65
#define VK_NUMPAD6        0x66
#define VK_NUMPAD7        0x67
#define VK_NUMPAD8        0x68
#define VK_NUMPAD9        0x69
#define VK_MULTIPLY       0x6A
#define VK_ADD            0x6B
#define VK_SEPARATOR      0x6C
#define VK_SUBTRACT       0x6D
#define VK_DECIMAL        0x6E
#define VK_DIVIDE         0x6F
#define VK_F1             0x70
#define VK_F2             0x71
#define VK_F3             0x72
#define VK_F4             0x73
#define VK_F5             0x74
#define VK_F6             0x75
#define VK_F7             0x76
#define VK_F8             0x77
#define VK_F9             0x78
#define VK_F10            0x79
#define VK_F11            0x7A
#define VK_F12            0x7B
#define VK_F13            0x7C
#define VK_F14            0x7D
#define VK_F15            0x7E
#define VK_F16            0x7F
#define VK_F17            0x80
#define VK_F18            0x81
#define VK_F19            0x82
#define VK_F20            0x83
#define VK_F21            0x84
#define VK_F22            0x85
#define VK_F23            0x86
#define VK_F24            0x87
#define VK_NUMLOCK        0x90
#define VK_SCROLL         0x91
/*
 * VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
 * Used only as parameters to GetAsyncKeyState() and GetKeyState().
 * No other API or message will distinguish left and right keys in this way.
 */
#define VK_LSHIFT         0xA0
#define VK_RSHIFT         0xA1
#define VK_LCONTROL       0xA2
#define VK_RCONTROL       0xA3
#define VK_LMENU          0xA4
#define VK_RMENU          0xA5
#if(WINVER >= 0x0400)
#define VK_PROCESSKEY     0xE5
#endif /* WINVER >= 0x0400 */
#define VK_ATTN           0xF6
#define VK_CRSEL          0xF7
#define VK_EXSEL          0xF8
#define VK_EREOF          0xF9
#define VK_PLAY           0xFA
#define VK_ZOOM           0xFB
#define VK_NONAME         0xFC
#define VK_PA1            0xFD
#define VK_OEM_CLEAR      0xFE    作者Blog：http://blog.csdn.net/cryfish/