accelerator.c

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#include <windows.h>
#include <stdio.h>
#include <string.h>
 
#define ID_ACCEL1 0x100
#define ID_ACCEL2 0x101
#define ID_ACCEL3 0x102
#define ID_ACCEL4 0x103
 
#ifndef VK_A
#define VK_A 0x41
#endif
 
/*
 * {fVirt, key, cmd}
 * fVirt |= FVIRTKEY | FCONTROL | FALT | FSHIFT
 */
//static HFONT tf;
static ACCEL Accelerators[4] = {
    { FVIRTKEY, VK_A, ID_ACCEL1},
    { FVIRTKEY | FSHIFT, VK_A, ID_ACCEL2},
    { FVIRTKEY | FCONTROL, VK_A, ID_ACCEL3},
    { FVIRTKEY | FALT, VK_A, ID_ACCEL4}};
static HACCEL hAcceleratorTable;
static char Event[200];
 
LRESULT WINAPI MainWndProc(HWND, UINT, WPARAM, LPARAM);
 
int WINAPI
WinMain(HINSTANCE hInstance,
    HINSTANCE hPrevInstance,
    LPSTR lpszCmdLine,
    int nCmdShow)
{
  WNDCLASS wc;
  MSG msg;
  HWND hWnd;
 
  wc.lpszClassName = "AcceleratorTest";
  wc.lpfnWndProc = MainWndProc;
  wc.style = CS_VREDRAW | CS_HREDRAW;
  wc.hInstance = hInstance;
  wc.hIcon = LoadIcon(NULL, (LPCTSTR)IDI_APPLICATION);
  wc.hCursor = LoadCursor(NULL, (LPCTSTR)IDC_ARROW);
  wc.hbrBackground = (HBRUSH)GetStockObject(GRAY_BRUSH);
  wc.lpszMenuName = NULL;
  wc.cbClsExtra = 0;
  wc.cbWndExtra = 0;
  if (RegisterClass(&wc) == 0)
    {
      fprintf(stderr, "RegisterClass failed (last error 0x%lX)\n",
          GetLastError());
      return(1);
    }
 
  hWnd = CreateWindow("AcceleratorTest",
              "Accelerator Test",
              WS_OVERLAPPEDWINDOW,
              0,
              0,
              CW_USEDEFAULT,
              CW_USEDEFAULT,
              NULL,
              NULL,
              hInstance,
              NULL);
  if (hWnd == NULL)
    {
      fprintf(stderr, "CreateWindow failed (last error 0x%lX)\n",
          GetLastError());
      return(1);
    }
 
  /*tf = CreateFontA(14, 0, 0, TA_BASELINE, FW_NORMAL, FALSE, FALSE, FALSE,
    ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
    DEFAULT_QUALITY, FIXED_PITCH|FF_DONTCARE, "Timmons");*/
 
  Event[0] = 0;
 
  ShowWindow(hWnd, nCmdShow);
 
  hAcceleratorTable = CreateAcceleratorTable(Accelerators,
    sizeof(Accelerators)/sizeof(Accelerators[1]));
  if (hAcceleratorTable == NULL)
    {
      fprintf(stderr, "CreateAcceleratorTable failed (last error 0x%lX)\n",
          GetLastError());
      return(1);
    }
 
  while(GetMessage(&msg, NULL, 0, 0))
    {
      if (!TranslateAccelerator(hWnd, hAcceleratorTable, &msg))
        {
          TranslateMessage(&msg);
          DispatchMessage(&msg);
        }
    }
 
  if (!DestroyAcceleratorTable(hAcceleratorTable))
    {
      fprintf(stderr, "DestroyAcceleratorTable failed (last error 0x%lX)\n",
          GetLastError());
      return(1);
    }
 
  //DeleteObject(tf);
 
  return msg.wParam;
}
 
LRESULT CALLBACK MainWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    PAINTSTRUCT ps;
    HDC hDC;
    char buf[200];
 
    switch(msg)
    {
    case WM_PAINT:
      hDC = BeginPaint(hWnd, &ps);
      //SelectObject(hDC, tf);
      sprintf(buf, "Event: '%s'", Event);
      TextOut(hDC, 10, 10, buf, strlen(buf));
      EndPaint(hWnd, &ps);
      break;
 
    case WM_DESTROY:
      PostQuitMessage(0);
      break;
 
    case WM_COMMAND:
 
      switch (LOWORD(wParam))
      {
      case ID_ACCEL1:
        strcpy(Event, "A");
        break;
 
      case ID_ACCEL2:
        strcpy(Event, "SHIFT+A");
        break;
 
      case ID_ACCEL3:
        strcpy(Event, "CTRL+A");
        break;
 
      case ID_ACCEL4:
        strcpy(Event, "ALT+A");
        break;
 
      default:
        sprintf(Event, "%d", LOWORD(wParam));
        break;
      }
 
      InvalidateRect(hWnd, NULL, TRUE);
      UpdateWindow(hWnd);
      break;
 
    default:
      return DefWindowProc(hWnd, msg, wParam, lParam);
    }
    return 0;
}