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1.1 root 1: /*--------------------------------------------------
2: DEVCAPS.C -- Device Capabilities Display Program
3: --------------------------------------------------*/
4:
5: #define INCL_WIN
6: #define INCL_GPI
7: #include <os2.h>
8: #include <stdlib.h>
9: #include <string.h>
10: #include "devcaps.h"
11:
12: MRESULT EXPENTRY ClientWndProc (HWND, USHORT, MPARAM, MPARAM) ;
13:
14: int main (void)
15: {
16: static CHAR szClientClass [] = "DevCaps" ;
17: static ULONG flFrameFlags = FCF_TITLEBAR | FCF_SYSMENU |
18: FCF_SIZEBORDER | FCF_MINMAX |
19: FCF_SHELLPOSITION | FCF_TASKLIST ;
20: HAB hab ;
21: HMQ hmq ;
22: HWND hwndFrame, hwndClient ;
23: QMSG qmsg ;
24:
25: hab = WinInitialize (0) ;
26: hmq = WinCreateMsgQueue (hab, 0) ;
27:
28: WinRegisterClass (hab, szClientClass, ClientWndProc, 0L, 0) ;
29:
30: hwndFrame = WinCreateStdWindow (HWND_DESKTOP, WS_VISIBLE,
31: &flFrameFlags, szClientClass, NULL,
32: 0L, NULL, 0, &hwndClient) ;
33:
34: WinSendMsg (hwndFrame, WM_SETICON,
35: WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, FALSE),
36: NULL) ;
37:
38: while (WinGetMsg (hab, &qmsg, NULL, 0, 0))
39: WinDispatchMsg (hab, &qmsg) ;
40:
41: WinDestroyWindow (hwndFrame) ;
42: WinDestroyMsgQueue (hmq) ;
43: WinTerminate (hab) ;
44: return 0 ;
45: }
46:
47: LONG RtJustCharStringAt (HPS hps, POINTL *pptl, LONG lLength, CHAR *pchText)
48: {
49: POINTL aptlTextBox[TXTBOX_COUNT] ;
50:
51: GpiQueryTextBox (hps, lLength, pchText, TXTBOX_COUNT, aptlTextBox) ;
52:
53: pptl->x -= aptlTextBox[TXTBOX_CONCAT].x ;
54:
55: return GpiCharStringAt (hps, pptl, lLength, pchText) ;
56: }
57:
58: MRESULT EXPENTRY ClientWndProc (HWND hwnd, USHORT msg, MPARAM mp1, MPARAM mp2)
59: {
60: static HDC hdc ;
61: static SHORT cxClient, cyClient, cxCaps, cyChar, cyDesc ;
62: CHAR szBuffer [12] ;
63: FONTMETRICS fm ;
64: LONG lValue ;
65: POINTL ptl ;
66: HPS hps ;
67: SHORT sLine ;
68:
69: switch (msg)
70: {
71: case WM_CREATE:
72: hps = WinGetPS (hwnd) ;
73: GpiQueryFontMetrics (hps, (LONG) sizeof fm, &fm) ;
74: cxCaps = (SHORT) fm.lEmInc ;
75: cyChar = (SHORT) fm.lMaxBaselineExt ;
76: cyDesc = (SHORT) fm.lMaxDescender ;
77: WinReleasePS (hps) ;
78:
79: hdc = WinOpenWindowDC (hwnd) ;
80: return 0 ;
81:
82: case WM_SIZE:
83: cxClient = SHORT1FROMMP (mp2) ;
84: cyClient = SHORT2FROMMP (mp2) ;
85: return 0 ;
86:
87: case WM_PAINT:
88: hps = WinBeginPaint (hwnd, NULL, NULL) ;
89: GpiErase (hps) ;
90:
91: for (sLine = 0 ; sLine < NUMLINES ; sLine++)
92: {
93: ptl.x = cxCaps ;
94: ptl.y = cyClient - cyChar * (sLine + 2) + cyDesc ;
95:
96: if (sLine >= (NUMLINES + 1) / 2)
97: {
98: ptl.x += cxCaps * 35 ;
99: ptl.y += cyChar * (NUMLINES + 1) / 2 ;
100: }
101:
102: DevQueryCaps (hdc, devcaps[sLine].lIndex, 1L, &lValue) ;
103:
104: GpiCharStringAt (hps, &ptl,
105: (LONG) strlen (devcaps[sLine].szIdentifier),
106: devcaps[sLine].szIdentifier) ;
107:
108: ptl.x += 33 * cxCaps ;
109: RtJustCharStringAt (hps, &ptl,
110: (LONG) strlen (ltoa (lValue, szBuffer, 10)),
111: szBuffer) ;
112: }
113: WinEndPaint (hps) ;
114: return 0 ;
115: }
116: return WinDefWindowProc (hwnd, msg, mp1, mp2) ;
117: }
118: