long wInaPlWndProc(HWND hwnd, UINT IMessage, UINT wParam, LONG IParam) RHDC hDC; ∥定义设备环境句柄 PAINTSTRUCT PS; ∥定义包含绘图信息的结构体变量 hEN Pen: ∥定义画笔句柄。 HBRUSHhBrush ∥定义画刷句柄 ∥以下定义输出的字符串。 static char cUp="You had hitted the Up key"; static char cctrll="You had hitted the ctrl key" static char cShift[="You had hitted the shift key" static char cCtrl All=You had hitted the ctrla key; static char cShift Bl=You had hitted the shift b key 下面定义并初始化按键标志变量。 static BOoLnUpkeyDown=FALSE nShiftKeyDown=FALSE, n Down=FALSE, nCtrlAKeyDown=FALSE nShiftBKeydown=FALSElong WINAPI WndProc(HWND hWnd,UINT iMessage,UINT wParam,LONG lParam) {HDC hDC; //定义设备环境句柄. PAINTSTRUCT ps; //定义包含绘图信息的结构体变量 HPEN hPen; //定义画笔句柄。 HBRUSH hBrush; //定义画刷句柄 //以下定义输出的字符串。 static char cUp[]="You had hitted the UP key"; static char cCtrl[]="You had hitted the Ctrl key"; static char cShift[]="You had hitted the SHIFT key"; static char cCtrl_A[]="You had hitted the CTRL A key"; static char cShift_B[]="You had hitted the SHIFT B key"; //下面定义并初始化按键标志变量。 static BOOL nUpKeyDown=FALSE, nShiftKeyDown=FALSE, nCtrlKeyDown=FALSE, nCtrlAKeyDown=FALSE, nShiftBKeyDown=FALSE;