怎么响应类似ctrl+a shift+b
#include<windows.h>#include<string.h>#include<stdio.h>#include<stdlib.h>char out[10]="";LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);int WINAPI WinMain(HINSTANCE hinstance,HINSTANCE hprevinst,LPSTR lpszcmdline,int ncmdshow){ HWND hwnd; MSG msg; WNDCLASS wndclass; char lpszclassname[]="6_3"; char lpsztitle[]="6_3"; wndclass.style=0; wndclass.lpfnWndProc=WndProc; wndclass.cbClsExtra=0; wndclass.cbWndExtra=0; wndclass.hInstance=hinstance; wndclass.hIcon=LoadIcon(NULL,IDI_APPLICATION); wndclass.hCursor=LoadCursor(NULL,IDC_ARROW); wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH); wndclass.lpszClassName=lpszclassname; wndclass.lpszMenuName=NULL; if(!RegisterClass(&wndclass)){ MessageBeep(0); return FALSE; } hwnd=CreateWindow(lpszclassname,lpsztitle,WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hinstance,NULL); ShowWindow(hwnd,ncmdshow); UpdateWindow(hwnd); while(GetMessage(&msg,NULL,0,0)){ TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam;}LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wparam,LPARAM lparam){ HDC hdc; PAINTSTRUCT ps; char c; char cc[10]; switch(message){ case WM_CHAR: switch(wparam){ } InvalidateRect(hwnd,NULL,1); break; case WM_KEYDOWN: switch(wparam){ case VK_UP: strcpy(out,"UP"); break; case VK_CONTROL: strcpy(out,"CTRL"); break; case VK_SHIFT: strcpy(out,"SHIFT"); } InvalidateRect(hwnd,NULL,1); break; case WM_PAINT: hdc=BeginPaint(hwnd,&ps); TextOut(hdc,10,10,out,strlen(out)); EndPaint(hwnd,&ps); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hwnd,message,wparam,lparam); } return 0;}WM_KEYDOWN: if(GetKeyState(VK_CONTROL) < 0 && GetKeyState(VK_SHIFT) < 0 && GetKeyState(_T('A')) < 0 && GetKeyState(_T('B')) < 0) { ...} break;