Return to getdev.c CVS log

Up to [WindowsNT SDKs] / q_a / samples / getdev

Annotation of q_a/samples/getdev/getdev.c, revision 1.1

1.1     ! root        1: /**************************************************************************\
        !             2: *  getdev.c -- sample program demonstrating the getdev... APIs
        !             3: *
        !             4: *  written March 92 by Steve Firebaugh
        !             5: *
        !             6: *  In this sample the main window is a dialog box.  There is no need to
        !             7: *   register a new window class or create a new window.  Instead just call
        !             8: *   DialogBox() and use the template defined in the .RC file.  All of the
        !             9: *   interesting code is thus in the window procedure for the dialog box.
        !            10: *
        !            11: *  The dialog template currently specifies a "monospaced font."  This makes
        !            12: *   the dialog look somewhat odd, but makes text formatting much easier.  If
        !            13: *   the specified font does not exist on the system running this sample, the
        !            14: *   program will work fine, but the contents of the listbox will not look
        !            15: *   very good.
        !            16: *
        !            17: \**************************************************************************/
        !            18: 
        !            19: #include <windows.h>
        !            20: #include "getdev.h"
        !            21: 
        !            22: 
        !            23: /**************************************************************************\
        !            24: *
        !            25: *  function:  WinMain()
        !            26: *
        !            27: *  input parameters:  c.f. generic sample
        !            28: *
        !            29: \**************************************************************************/
        !            30: int APIENTRY WinMain(HANDLE hInstance, HANDLE hPrevInstance,
        !            31:                      LPSTR lpCmdLine, int nCmdShow)
        !            32: {
        !            33: int ret;
        !            34: 
        !            35:     UNREFERENCED_PARAMETER( hPrevInstance );
        !            36:     UNREFERENCED_PARAMETER( lpCmdLine );
        !            37:     UNREFERENCED_PARAMETER( nCmdShow);
        !            38: 
        !            39:     ret = DialogBox (hInstance, "getdevDlg", NULL, MainDlgProc);
        !            40:     return ret;
        !            41: }
        !            42: 
        !            43: 
        !            44: 
        !            45: /**************************************************************************\
        !            46: *
        !            47: *  function:  MainDlgProc()
        !            48: *
        !            49: *  input parameters:  standard window procedure parameters.
        !            50: *
        !            51: * At initialization time, call GetDeviceCaps() repeatedly and place the
        !            52: *  results in the list box.
        !            53: *
        !            54: \**************************************************************************/
        !            55: LONG APIENTRY MainDlgProc(HWND hwnd, UINT message, UINT wParam, LONG lParam)
        !            56: {
        !            57:   UNREFERENCED_PARAMETER(lParam);
        !            58: 
        !            59: 
        !            60:   switch (message) {
        !            61: 
        !            62:     case WM_INITDIALOG: {
        !            63:       int i;
        !            64:       int value;
        !            65:       HDC hdc;
        !            66: 
        !            67:       hdc = GetDC (hwnd);
        !            68: 
        !            69:       for (i = 0; i < NINDEX ; i++) {
        !            70:         value = GetDeviceCaps (hdc , DevCaps[i].Value);
        !            71:         wsprintf (buffer,"%s %8d", DevCaps[i].String, value);
        !            72:         SendDlgItemMessage (hwnd, DID_LISTBOX, LB_ADDSTRING, 0, (LONG) buffer);
        !            73:         ExpandInfo (hwnd, DevCaps[i].Value, value);
        !            74:       }
        !            75: 
        !            76:       ReleaseDC (hwnd,hdc);
        !            77:     } break;
        !            78: 
        !            79: 
        !            80:     /********************************************************************\
        !            81:     * WM_SYSCOMMAND
        !            82:     *
        !            83:     * ignore all syscommand messages, except for SC_CLOSE.
        !            84:     *  on this one, call EndDialog().
        !            85:     \********************************************************************/
        !            86:     case WM_SYSCOMMAND:
        !            87:       if (wParam == SC_CLOSE) {
        !            88:         EndDialog (hwnd, TRUE);
        !            89:         return TRUE;
        !            90:       } else
        !            91:         return FALSE;
        !            92:     break;
        !            93: 
        !            94: 
        !            95:     default: return FALSE;
        !            96:   } /* end switch(message) */
        !            97: }
        !            98: 
        !            99: 
        !           100: 
        !           101: 
        !           102: 
        !           103: /**************************************************************************\
        !           104: *
        !           105: *  function:  ExpandInfo()
        !           106: *
        !           107: *  input parameters:
        !           108: *   hwnd  - parent of the list box with the info.
        !           109: *   index - the input value which was sent to GetDeviceCaps().
        !           110: *   value - the return value from calling GetDeviceCaps().
        !           111: *
        !           112: *  global variables:
        !           113: *   buffer - string to hold info sent to list box.
        !           114: *   space  - format string to wsprintf
        !           115: *
        !           116: *  Some of the return values from GetDeviceCaps() are bit strings
        !           117: *   where each bit has a constant defined for it in wingdi.h.  This
        !           118: *   function simply translates the bits into the string constant and
        !           119: *   then places that in the listbox.
        !           120: *
        !           121: \**************************************************************************/
        !           122: VOID ExpandInfo (HWND hwnd, int index, int value)
        !           123: {
        !           124:   int i;
        !           125: 
        !           126:   switch (index) {
        !           127: 
        !           128:     case TECHNOLOGY   :
        !           129:       for (i = 0 ; i< NDevice ; i++) {
        !           130:         if (value == Device[i].Value) {
        !           131:           wsprintf (buffer,space, Device[i].String);
        !           132:           SendDlgItemMessage (hwnd, DID_LISTBOX, LB_ADDSTRING, 0, (LONG)buffer);
        !           133:         }
        !           134:       }
        !           135:     break;
        !           136: 
        !           137: 
        !           138: 
        !           139:     case CURVECAPS    :
        !           140:       for (i = 0 ; i< NCurveCaps ; i++) {
        !           141:         if (value & CurveCaps[i].Value) {
        !           142:           wsprintf (buffer,space, CurveCaps[i].String);
        !           143:           SendDlgItemMessage (hwnd, DID_LISTBOX, LB_ADDSTRING, 0, (LONG)buffer);
        !           144:         }
        !           145:       }
        !           146:     break;
        !           147: 
        !           148: 
        !           149: 
        !           150:     case LINECAPS     :
        !           151:       for (i = 0 ; i< NLineCaps ; i++) {
        !           152:         if (value & LineCaps[i].Value) {
        !           153:           wsprintf (buffer,space, LineCaps[i].String);
        !           154:           SendDlgItemMessage (hwnd, DID_LISTBOX, LB_ADDSTRING, 0, (LONG)buffer);
        !           155:         }
        !           156:       }
        !           157:     break;
        !           158: 
        !           159: 
        !           160: 
        !           161:     case POLYGONALCAPS:
        !           162:       for (i = 0 ; i< NPolygonalCaps ; i++) {
        !           163:         if (value & PolygonalCaps[i].Value) {
        !           164:           wsprintf (buffer,space, PolygonalCaps[i].String);
        !           165:           SendDlgItemMessage (hwnd, DID_LISTBOX, LB_ADDSTRING, 0, (LONG)buffer);
        !           166:         }
        !           167:       }
        !           168:     break;
        !           169: 
        !           170: 
        !           171: 
        !           172:     case TEXTCAPS     :
        !           173:       for (i = 0 ; i< NTextCaps ; i++) {
        !           174:         if (value & TextCaps[i].Value) {
        !           175:           wsprintf (buffer,space, TextCaps[i].String);
        !           176:           SendDlgItemMessage (hwnd, DID_LISTBOX, LB_ADDSTRING, 0, (LONG)buffer);
        !           177:         }
        !           178:       }
        !           179:     break;
        !           180: 
        !           181: 
        !           182: 
        !           183:     case CLIPCAPS     :
        !           184:       for (i = 0 ; i< NClipCaps ; i++) {
        !           185:         if (value & ClipCaps[i].Value) {
        !           186:           wsprintf (buffer,space, ClipCaps[i].String);
        !           187:           SendDlgItemMessage (hwnd, DID_LISTBOX, LB_ADDSTRING, 0, (LONG)buffer);
        !           188:         }
        !           189:       }
        !           190:     break;
        !           191: 
        !           192: 
        !           193: 
        !           194:     case RASTERCAPS   :
        !           195:       for (i = 0 ; i< NRasterCaps ; i++) {
        !           196:         if (value & RasterCaps[i].Value) {
        !           197:           wsprintf (buffer,space, RasterCaps[i].String);
        !           198:           SendDlgItemMessage (hwnd, DID_LISTBOX, LB_ADDSTRING, 0, (LONG)buffer);
        !           199:         }
        !           200:       }
        !           201:     break;
        !           202: 
        !           203: 
        !           204:     default:
        !           205:     break;
        !           206: 
        !           207:   } /* end switch */
        !           208: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.