我发现OnKeyDown事件
void CTestView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
CString str;
str.Format("%c",nChar);
AfxMessageBox(str);
CView::OnKeyDown(nChar, nRepCnt, nFlags);
}
显示的都是大写,怎么让它区分大小写?
还有怎么按下F1、F2、F3、F4它会分别显示"p""d""r""s",真怪,到底怎么回事?
void CTestView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
CString str;
str.Format("%c",nChar);
AfxMessageBox(str);
CView::OnKeyDown(nChar, nRepCnt, nFlags);
}
显示的都是大写,怎么让它区分大小写?
还有怎么按下F1、F2、F3、F4它会分别显示"p""d""r""s",真怪,到底怎么回事?
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islower returns a non-zero value if c is a lowercase character (a – z). 当然,你还可以用ASCII值来判断。
case 0x30:
temp = "0";
break;
case 0x31:
temp = "1";
break;
case 0x32:
temp = "2";
break;
case 0x33:
temp = "3";
break;
case 0x34:
temp = "4";
break;
case 0x35:
temp = "5";
break;
case 0x36:
temp = "6";
break;
case 0x37:
temp = "7";
break;
case 0x38:
temp = "8";
break;
case 0x39:
temp = "9";
break;
case 0x41:
temp = "A";
break;
case 0x42:
temp = "B";
break;
case 0x43:
temp = "C";
break;
case 0x44:
temp = "D";
break;
case 0x45:
temp = "E";
break;
case 0x46:
temp = "F";
break;
case 0x47:
temp = "G";
break;
case 0x48:
temp = "H";
break;
case 0x49:
temp = "I";
break;
case 0x4A:
temp = "J";
break;
case 0x4B:
temp = "K";
break;
case 0x4C:
temp = "L";
break;
case 0x4D:
temp = "M";
break;
case 0x4E:
temp = "N";
break;
case 0x4F:
temp = "O";
break;
case 0x50:
temp = "P";
break;
case 0x51:
temp = "Q";
break;
case 0x52:
temp = "R";
break;
case 0x53:
temp = "S";
break;
case 0x54:
temp = "T";
break;
case 0x55:
temp = "U";
break;
case 0x56:
temp = "V";
break;
case 0x57:
temp = "W";
break;
case 0x58:
temp = "X";
break;
case 0x59:
temp = "Y";
break;
case 0x5A:
temp = "Z";
break;
case VK_F1:
temp = " F1 ";
break;
case VK_F10:
temp = " F10 ";
break;
case VK_F11:
temp = " F11 ";
break;
case VK_F12:
temp = " F12 ";
break;
case VK_F2:
temp = " F2 ";
break;
case VK_F3:
temp = " F3 ";
break;
case VK_F4:
temp = " F4 ";
break;
case VK_F5:
temp = " F5 ";
break;
case VK_F6:
temp = " F6 ";
break;
case VK_F7:
temp = " F7 ";
break;
case VK_F8:
temp = " F8 ";
break;
case VK_F9:
temp = " F9 ";
break;
case VK_NUMPAD0:
temp = " ([Extended]0) ";
break;
case VK_NUMPAD1:
temp = " ([Extended]1) ";
break;
case VK_NUMPAD2:
temp = " ([Extended]2) ";
break;
case VK_NUMPAD3:
temp = " ([Extended]3) ";
break;
case VK_NUMPAD4:
temp = " ([Extended]4) ";
break;
case VK_NUMPAD5:
temp = " ([Extended]5) ";
break;
case VK_NUMPAD6:
temp = " ([Extended]6) ";
break;
case VK_NUMPAD7:
temp = " ([Extended]7) ";
break;
case VK_NUMPAD8:
temp = " ([Extended]8) ";
break;
case VK_NUMPAD9:
temp = " ([Extended]9) ";
break;
case VK_RETURN:
temp = " (Return) ";
break;
case VK_TAB:
temp = " (Tab) ";
break;
case VK_CLEAR:
temp = " (Clear) ";
break;
case VK_MENU:
temp = " (Alt) ";
break;
case VK_PAUSE:
temp = " (Pause) ";
break;
case VK_ESCAPE:
temp = " (Esc) ";
break;
case VK_SPACE:
temp = " (Space) ";
break;
case VK_PRIOR:
temp = " (Page Up) ";
break;
case VK_NEXT:
temp = " (Page Dawn) ";
break;
case VK_END:
temp = " (End) ";
break;
case VK_HOME:
temp = " (Home) ";
break;
case VK_LEFT:
temp = " (Left Arrow) ";
break;
case VK_RIGHT:
temp = " (Right Arrow) ";
break;
case VK_UP:
temp = " (Up Arrow) ";
break;
case VK_DOWN:
temp = " (Down Arrow) ";
break;
case VK_SNAPSHOT:
temp = " (Print Screen) ";
break;
case VK_INSERT:
temp = " (Insert) ";
break;
case VK_DELETE:
temp = " (Delete) ";
break;
case VK_MULTIPLY:
temp = " ([Extended]*) ";
break;
case VK_ADD:
temp = " ([Extended]+) ";
break;
case VK_SUBTRACT:
temp = " ([Extended]-) ";
break;
case VK_DECIMAL:
temp = " ([Extended].) ";
break;
case VK_DIVIDE:
temp = " ([Extended]/) ";
break;
case VK_CAPITAL:
temp = " (Caps Lock) ";
break;
case VK_NUMLOCK:
temp = " (Num Lock) ";
break;
case VK_SCROLL:
temp = " (Scroll Lock) ";
break;
case VK_LWIN:
temp = " (Left Windows) ";
break;
case VK_RWIN:
temp = " (Right Windows) ";
break;
case VK_APPS:
temp = " (Menu) ";
break;
case VK_CANCEL:
temp = " (Cancel) ";
break;
case 192:
temp = "`";
break;
case 189:
temp = "-";
break;
case 187:
temp = "=";
break;
case 220:
temp = "\\";
break;
case 8:
temp = " (Back Space) ";
break;
case 219:
temp = "[";
break;
case 221:
temp = "]";
break;
case 186:
temp = ";";
break;
case 222:
temp = "'";
break;
case 188:
temp = ",";
break;
case 190:
temp = ".";
break;
case 191:
temp = "/";
break;
case 255:
temp = " (WakeUp/ShutDown) ";
break;
case 95:
temp = " (Sleep) ";
break;
case 16:
temp = " (Shift) ";
break;
case 17:
temp = " (Ctrl) ";
break;