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Windows 95 API Bible
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Windows 95 API Bible 3 Disc Set.iso
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Win32 API Bible Book 3 of 3
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CHAPTE22
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DEVCAPS.C
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C/C++ Source or Header
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1996-04-29
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10KB
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341 lines
#include <windows.h>
#include <stdio.h>
#include "DevCaps.h"
#if defined (WIN32)
#define IS_WIN32 TRUE
#else
#define IS_WIN32 FALSE
#endif
#define IS_NT IS_WIN32 && (BOOL)(GetVersion() < 0x80000000)
#define IS_WIN32S IS_WIN32 && (BOOL)(!(IS_NT) && (LOBYTE(LOWORD(GetVersion()))<4))
#define IS_WIN95 (BOOL)(!(IS_NT) && !(IS_WIN32S)) && IS_WIN32
HINSTANCE hInst; // current instance
LPCTSTR lpszAppName = "MyApp";
LPCTSTR lpszTitle = "My Application";
// the rest of the stuff
//......................
BOOL RegisterWin95( CONST WNDCLASS* lpwc );
int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPTSTR lpCmdLine, int nCmdShow)
{
MSG msg;
HWND hWnd;
WNDCLASS wc;
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC)WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon (hInstance, lpszAppName);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = lpszAppName;
wc.lpszClassName = lpszAppName;
if ( IS_WIN95 )
{
if ( !RegisterWin95( &wc ) )
return( FALSE );
}
else if ( !RegisterClass( &wc ) )
return( FALSE );
hInst = hInstance;
hWnd = CreateWindow( lpszAppName,
lpszTitle,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0,
CW_USEDEFAULT, 0,
NULL,
NULL,
hInstance,
NULL
);
if ( !hWnd )
return( FALSE );
ShowWindow( hWnd, nCmdShow );
UpdateWindow( hWnd );
while( GetMessage( &msg, NULL, 0, 0) )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
return( msg.wParam );
}
BOOL RegisterWin95( CONST WNDCLASS* lpwc )
{
WNDCLASSEX wcex;
wcex.style = lpwc->style;
wcex.lpfnWndProc = lpwc->lpfnWndProc;
wcex.cbClsExtra = lpwc->cbClsExtra;
wcex.cbWndExtra = lpwc->cbWndExtra;
wcex.hInstance = lpwc->hInstance;
wcex.hIcon = lpwc->hIcon;
wcex.hCursor = lpwc->hCursor;
wcex.hbrBackground = lpwc->hbrBackground;
wcex.lpszMenuName = lpwc->lpszMenuName;
wcex.lpszClassName = lpwc->lpszClassName;
// Added elements for Windows 95.
//...............................
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.hIconSm = LoadImage(wcex.hInstance, lpwc->lpszClassName,
IMAGE_ICON, 16, 16,
LR_DEFAULTCOLOR );
return RegisterClassEx( &wcex );
}
LRESULT CALLBACK About( HWND hDlg,
UINT message,
WPARAM wParam,
LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
return (TRUE);
case WM_COMMAND:
if ( LOWORD(wParam) == IDOK
|| LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, TRUE);
return (TRUE);
}
break;
}
return (FALSE);
}
#define MSG_LEN 1024
#define Display(s) SendMessage(hListBox, LB_ADDSTRING, 0, (LPARAM)s)
int nTabStop = 200;
char msg[MSG_LEN+1];
HWND hListBox = NULL;
MMRESULT rc;
UINT nDevId = 0;
VOID DisplayDevCaps(HWND hWnd, UINT nDevId);
LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
switch( uMsg )
{
case WM_CREATE :
// Create ListBox
//...............
hListBox = CreateWindow( "LISTBOX", "",
WS_CHILD | LBS_NOTIFY |
WS_VSCROLL | WS_BORDER |
WS_VISIBLE | LBS_NOINTEGRALHEIGHT |
LBS_USETABSTOPS,
0, 0,
0, 0,
hWnd,
(HMENU)101,
hInst,
NULL );
SendMessage(hListBox, LB_SETTABSTOPS, 1, (LPARAM)&nTabStop);
break;
case WM_SIZE :
MoveWindow( hListBox, 0, 0,
LOWORD( lParam ),
HIWORD( lParam ), TRUE );
break;
case WM_COMMAND :
switch( LOWORD( wParam ) )
{
case IDM_TEST:
{
SendMessage(hListBox, LB_RESETCONTENT, 0, 0);
sprintf(msg, "Joystick device driver supports %ld"
" joysticks.", joyGetNumDevs());
Display(msg);
Display("");
for (nDevId = 0; nDevId < joyGetNumDevs(); nDevId++)
DisplayDevCaps(hWnd, nDevId);
}
break;
case IDM_ABOUT :
DialogBox( hInst, "AboutBox", hWnd, About );
break;
case IDM_EXIT :
DestroyWindow( hWnd );
break;
}
break;
case WM_DESTROY :
PostQuitMessage(0);
break;
default :
return( DefWindowProc( hWnd, uMsg, wParam, lParam ) );
}
return( 0L );
}
/*****************************************************************************
* DisplayDevCaps
*
*
*
******************************************************************************/
VOID DisplayDevCaps(HWND hWnd, UINT nDevId)
{
JOYCAPS jc;
JOYINFO ji;
Display("");
// check if joystick is plugged in
//................................
if ( joyGetPos(nDevId, &ji) )
{
sprintf(msg, "Joystick #%ld:\t Not plugged in.", nDevId);
Display(msg);
return;
}
else
{
sprintf(msg, "Joystick #%ld:\t Capabilities:", nDevId);
Display(msg);
Display("");
}
joyGetDevCaps(nDevId, &jc, sizeof(JOYCAPS));
sprintf(msg, "Device driver manufacturer ID:\t %ld", jc.wMid);
Display(msg);
sprintf(msg, "Product ID:\t %ld", jc.wPid);
Display(msg);
sprintf(msg, "Product name:\t %s", jc.szPname);
Display(msg);
sprintf(msg, "Registry key:\t %s", jc.szRegKey);
Display(msg);
sprintf(msg, "Joystick driver OEM:\t %s", jc.szOEMVxD);
Display(msg);
Display("");
// joystick capabilities
//......................
sprintf(msg, "Number of buttons:\t Supported:%ld, In-use:%ld",
jc.wMaxButtons, jc.wNumButtons);
Display(msg);
sprintf(msg, "Number of axes:\t Supported:%ld, In-use:%ld",
jc.wMaxAxes, jc.wNumAxes);
Display(msg);
sprintf(msg, "Supports z-coordinate:\t %s",
((jc.wCaps & JOYCAPS_HASZ) ? "Yes" : "No") );
Display(msg);
sprintf(msg, "Supports rudder (forth-axis):\t %s",
((jc.wCaps & JOYCAPS_HASR) ? "Yes" : "No") );
Display(msg);
sprintf(msg, "Supports u-coordinate (fifth-axis):\t %s",
((jc.wCaps & JOYCAPS_HASU) ? "Yes" : "No") );
Display(msg);
sprintf(msg, "Supports v-coordinate (sixth-axis):\t %s",
((jc.wCaps & JOYCAPS_HASV) ? "Yes" : "No") );
Display(msg);
sprintf(msg, "Supports point-of-view (POV):\t %s",
((jc.wCaps & JOYCAPS_HASPOV) ? "Yes" : "No") );
Display(msg);
sprintf(msg, "Supports POV (centered, forward, backward, left,and right):\t %s",
((jc.wCaps & JOYCAPS_POV4DIR) ? "Yes" : "No") );
Display(msg);
sprintf(msg, "Supports POV degree bearings:\t %s",
((jc.wCaps & JOYCAPS_POVCTS) ? "Yes" : "No") );
Display(msg);
// range information
//..................
sprintf(msg, "X-coordinate range (first-axis):\t %ld..%ld",
jc.wXmin, jc.wXmax);
Display(msg);
sprintf(msg, "Y-coordinate range (second-axis):\t %ld..%ld",
jc.wYmin, jc.wYmax);
Display(msg);
sprintf(msg, "Z-coordinate range (third-axis):\t %ld..%ld",
jc.wZmin, jc.wZmax);
Display(msg);
sprintf(msg, "R-coordinate (rudder) range (fourth-axis):\t %ld..%ld",
jc.wRmin, jc.wRmax);
Display(msg);
sprintf(msg, "U-coordinate range (fifth-axis):\t %ld..%ld",
jc.wUmin, jc.wUmax);
Display(msg);
sprintf(msg, "V-coordinate range (sixth-axis):\t %ld..%ld",
jc.wVmin, jc.wVmax);
Display(msg);
sprintf(msg, "Polling frequency range supported:\t %ld..%ld",
jc.wPeriodMin, jc.wPeriodMax);
Display(msg);
}