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Annotation of q_a/samples/uniput/status.c, revision 1.1

1.1     ! root        1: 
        !             2: /******************************************************************************\
        !             3: *       This is a part of the Microsoft Source Code Samples. 
        !             4: *       Copyright (C) 1993 Microsoft Corporation.
        !             5: *       All rights reserved. 
        !             6: *       This source code is only intended as a supplement to 
        !             7: *       Microsoft Development Tools and/or WinHelp documentation.
        !             8: *       See these sources for detailed information regarding the 
        !             9: *       Microsoft samples programs.
        !            10: \******************************************************************************/
        !            11: 
        !            12: /**************************************************************************\
        !            13: * status.c - module to support the status bar.
        !            14: *
        !            15: * resized by main frame window.
        !            16: * Title and type text may be set in display.c
        !            17: * text and painting managed in this module.
        !            18: \**************************************************************************/
        !            19: #define UNICODE
        !            20: 
        !            21: #include <windows.h>
        !            22: #include "uniput.h"
        !            23: 
        !            24: 
        !            25: /* prototype for function to do pseudo-3D outline */
        !            26: VOID framechildwindow (HDC, HWND, HWND);
        !            27: 
        !            28: 
        !            29: /* logfont for the font selected into the static windows on status bar */
        !            30: LOGFONT logfontsmall = {
        !            31:       UCFONTHEIGHT /2 ,
        !            32:       UCFONTWIDTH /2,
        !            33:        0 ,
        !            34:        0 ,
        !            35:      400 ,
        !            36:        0 ,
        !            37:        0 ,
        !            38:        0 ,
        !            39:        UNICODE_CHARSET ,
        !            40:        0 ,
        !            41:        0 ,
        !            42:        2 ,
        !            43:        2 ,
        !            44:       TEXT("Lucida Sans Unicode")};
        !            45: 
        !            46: 
        !            47: 
        !            48: HWND hwndStatic0, hwndStatic1, hwndStatic2;
        !            49: 
        !            50: /**************************************************************************\
        !            51: *
        !            52: *  function:  StatusWndProc()
        !            53: *
        !            54: *  input parameters:  normal window procedure parameters.
        !            55: *
        !            56: *  global variables:
        !            57: \**************************************************************************/
        !            58: LRESULT CALLBACK StatusWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
        !            59: {
        !            60: static HFONT hfontStatic;
        !            61: RECT rect, clientrect;
        !            62: 
        !            63: 
        !            64:   switch (message) {
        !            65: 
        !            66:     /**********************************************************************\
        !            67:     *  WM_CREATE
        !            68:     *
        !            69:     * Create two static child windows, and select a font for them.
        !            70:     \**********************************************************************/
        !            71:     case WM_CREATE: {
        !            72:       GetClientRect (hwnd, &clientrect);
        !            73: 
        !            74:       hwndStatic0 = CreateWindow(
        !            75:               TEXT("STATIC"),
        !            76:               TEXT("Target Window"),
        !            77:               WS_CHILD | WS_VISIBLE | SS_CENTER,
        !            78:               0,0,0,0,
        !            79:               hwnd, NULL, hInst, 0);
        !            80: 
        !            81:       hwndStatic1 = CreateWindow(
        !            82:               TEXT("STATIC"),
        !            83:               TEXT("Unicode/Ansi"),
        !            84:               WS_CHILD | WS_VISIBLE | SS_CENTER,
        !            85:               0,0,0,0,
        !            86:               hwnd, NULL, hInst, 0);
        !            87: 
        !            88:       hwndStatic2 = CreateWindow(
        !            89:               TEXT("STATIC"),
        !            90:               TEXT(""),
        !            91:               WS_CHILD | WS_VISIBLE | SS_RIGHT,
        !            92:               0,0,0,0,
        !            93:               hwnd, NULL, hInst, 0);
        !            94: 
        !            95: 
        !            96:       hfontStatic = CreateFontIndirect (&logfontsmall);
        !            97:       SendMessage (hwndStatic0, WM_SETFONT, (WPARAM) hfontStatic, 0);
        !            98:       SendMessage (hwndStatic1, WM_SETFONT, (WPARAM) hfontStatic, 0);
        !            99:       SendMessage (hwndStatic2, WM_SETFONT, (WPARAM) hfontStatic, 0);
        !           100:     } break;
        !           101: 
        !           102: 
        !           103:     /**********************************************************************\
        !           104:     *  WM_DESTROY
        !           105:     *
        !           106:     * free the font we created at WM_CREATE time.
        !           107:     * hwndStatic* child windows are destroyed automatically.
        !           108:     \**********************************************************************/
        !           109:     case WM_DESTROY:
        !           110:       DeleteObject (hfontStatic);
        !           111:     break;
        !           112: 
        !           113: 
        !           114:     /**********************************************************************\
        !           115:     *  WM_CTLCOLORSTATIC
        !           116:     \**********************************************************************/
        !           117:     case WM_CTLCOLORSTATIC: {
        !           118:       HDC hdc;
        !           119: 
        !           120:       hdc = (HDC) wParam;
        !           121:       SetBkMode (hdc, TRANSPARENT);
        !           122:       return (LRESULT)GetStockObject (LTGRAY_BRUSH);
        !           123:     } break;
        !           124: 
        !           125: 
        !           126:     /**********************************************************************\
        !           127:     *  WM_SIZE
        !           128:     *
        !           129:     * Resize the static controls to stretch them to always fill the status
        !           130:     *  bar minus some border area.
        !           131:     \**********************************************************************/
        !           132:     case WM_SIZE: {
        !           133:       GetClientRect (hwnd, &clientrect);
        !           134:       rect.top = clientrect.top + SBORDER;
        !           135:       rect.bottom = clientrect.bottom - SBORDER;
        !           136: 
        !           137:       rect.left = SBORDER;
        !           138:       rect.right = rect.left + SFIELD0;
        !           139: 
        !           140:       SetWindowPos (hwndStatic0, HWND_TOP,
        !           141:         rect.left,
        !           142:         rect.top,
        !           143:         rect.right - rect.left,
        !           144:         rect.bottom - rect.top, 0);
        !           145: 
        !           146: 
        !           147:       rect.left = 3*SBORDER + SFIELD0;
        !           148:       rect.right = rect.left + SFIELD1;
        !           149: 
        !           150:       SetWindowPos (hwndStatic1, HWND_TOP,
        !           151:         rect.left,
        !           152:         rect.top,
        !           153:         rect.right - rect.left,
        !           154:         rect.bottom - rect.top, 0);
        !           155: 
        !           156:       rect.left  = 5*SBORDER + SFIELD0 + SFIELD1;
        !           157:       rect.right = clientrect.right - SBORDER;
        !           158: 
        !           159:       SetWindowPos (hwndStatic2, HWND_TOP,
        !           160:         rect.left,
        !           161:         rect.top,
        !           162:         rect.right - rect.left,
        !           163:         rect.bottom - rect.top, 0);
        !           164: 
        !           165:       return TRUE;
        !           166:     } break;
        !           167: 
        !           168: 
        !           169: 
        !           170: 
        !           171:     /**********************************************************************\
        !           172:     *  WMU_SETTARGETNAME
        !           173:     *
        !           174:     * wParam - BOOL... TRUE: hwndTarget is unicode, FALSE: ansi
        !           175:     * lParam - pointer to new string.
        !           176:     *
        !           177:     \**********************************************************************/
        !           178:     case WMU_SETTARGETNAME:
        !           179: 
        !           180:       SetWindowText (hwndStatic0,(LPCTSTR) lParam);
        !           181: 
        !           182:       if (wParam == FALSE)
        !           183:         SetWindowText (hwndStatic1,TEXT ("Ansi"));
        !           184:       else
        !           185:         SetWindowText (hwndStatic1,TEXT ("Unicode"));
        !           186: 
        !           187:     break;
        !           188: 
        !           189: 
        !           190: #define MAXCHARS 255
        !           191: 
        !           192:     /**********************************************************************\
        !           193:     *  WMU_CHARACTER
        !           194:     *
        !           195:     * wParam - WCHAR value
        !           196:     *
        !           197:     * Display a string of characters in the second static window. This is
        !           198:     *  a FIFO buffer, if we fill it, shift characters to the left, and
        !           199:     *  set the string back into the static control.
        !           200:     *
        !           201:     \**********************************************************************/
        !           202:     case WMU_CHARACTER: {
        !           203:       TCHAR buffer[MAXCHARS+1];
        !           204:       int nchar;
        !           205:       int i;
        !           206: 
        !           207:       GetWindowText (hwndStatic2,buffer, MAXCHARS+1);
        !           208:       nchar = GetWindowTextLength (hwndStatic2);
        !           209: 
        !           210:       if (nchar >= MAXCHARS) {
        !           211:         nchar = MAXCHARS-1;
        !           212:         for (i= 0; i<(MAXCHARS-1); i++)
        !           213:           buffer[i] = buffer[i+1];
        !           214:       }
        !           215: 
        !           216:       buffer[nchar] = (TCHAR) wParam;
        !           217:       buffer[nchar+1] = (TCHAR) '\000';
        !           218: 
        !           219:       SetWindowText (hwndStatic2,buffer);
        !           220: 
        !           221:     } break;
        !           222: 
        !           223: 
        !           224: 
        !           225:     /**********************************************************************\
        !           226:     *  WM_PAINT
        !           227:     *
        !           228:     * Gray background is done automatically, just outline the two static
        !           229:     *  text windows with 3-D effect.
        !           230:     \**********************************************************************/
        !           231:     case WM_PAINT: {
        !           232:       HDC hdc;
        !           233:       PAINTSTRUCT ps;
        !           234: 
        !           235:       hdc = BeginPaint(hwnd, &ps);
        !           236: 
        !           237:       framechildwindow (hdc,hwnd, hwndStatic0);
        !           238:       framechildwindow (hdc,hwnd, hwndStatic1);
        !           239:       framechildwindow (hdc,hwnd, hwndStatic2);
        !           240: 
        !           241:       EndPaint (hwnd, &ps);
        !           242:     } return FALSE; /* end WM_PAINT */
        !           243: 
        !           244:   } /* end switch */
        !           245:   return (DefWindowProc(hwnd, message, wParam, lParam));
        !           246: }
        !           247: 
        !           248: 
        !           249: 
        !           250: /**************************************************************************\
        !           251: *
        !           252: *  function:  framechildwindow()
        !           253: *
        !           254: * Simply draw a 3D frame around child window.
        !           255: *
        !           256: \**************************************************************************/
        !           257: VOID framechildwindow (HDC hdc, HWND hwndParent, HWND hwndChild)
        !           258: {
        !           259: RECT rect;
        !           260: 
        !           261:       GetWindowRect (hwndChild, &rect);
        !           262: 
        !           263:       /* minor hack... assumes RECT is two points, right field starting first */
        !           264:       ScreenToClient (hwndParent, (LPPOINT)&rect);
        !           265:       ScreenToClient (hwndParent, (LPPOINT)&(rect.right));
        !           266: 
        !           267:       InflateRect (&rect, 1, 1);
        !           268:       FrameRect (hdc, &rect, GetStockObject (GRAY_BRUSH));
        !           269:       InflateRect (&rect, -1, -1);
        !           270:       SelectObject (hdc, GetStockObject (WHITE_PEN));
        !           271:       MoveToEx (hdc, rect.right, rect.top, NULL);
        !           272:       LineTo (hdc,rect.right, rect.bottom);
        !           273:       LineTo (hdc,rect.left, rect.bottom);
        !           274: 
        !           275:     return;
        !           276: }

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