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Is there a way to detect a Key being help down?
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00633633
Message ID:
00633677
Vues:
14
Thanks Sergey I will give it a try.

Simon

>>Hi
>>
>>The keypress function detects when the user presses and releases a key but is there a way to detect the repeated key strokes when a key is held down?
>>
>You can use Windows API function GetKeyState
>DECLARE INTEGER GetKeyState IN WIN32API INTEGER
See http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/keybinpt_4z51.asp for details. Here's the list of the definitions for some of the virtual keys.
/*
> * 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
>
Simon White
dCipher Computing
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