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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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CHAPTE16
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CONNECT.C
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C/C++ Source or Header
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1996-04-28
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8KB
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260 lines
#include <windows.h>
#include <stdio.h>
#include "connect.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 = "midiConnect()";
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 | WS_VSCROLL,
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 );
}
#define MSG_LEN 1024
// global variables
//.................
char msg[MSG_LEN+1];
HWND hListBox = NULL;
MMRESULT rc;
UINT nDevId = 0;
HMIDIIN hmi = NULL;
HMIDIOUT hmo = NULL;
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,
0, 0,
0, 0,
hWnd,
(HMENU)101,
hInst,
NULL );
break;
case WM_SIZE :
MoveWindow( hListBox, 0, 0,
LOWORD( lParam ),
HIWORD( lParam ), TRUE );
break;
case WM_COMMAND :
switch( LOWORD( wParam ) )
{
case IDM_TEST :
{
// open MIDI input device
//.......................
rc = midiInOpen(&hmi, nDevId, (DWORD)NULL,
(DWORD)NULL, CALLBACK_NULL);
if (rc != MMSYSERR_NOERROR)
{
midiInGetErrorText(rc, msg, MSG_LEN);
MessageBox(hWnd, msg, NULL, MB_OK);
break;
}
// open MIDI output device
//........................
rc = midiOutOpen(&hmo, nDevId, (DWORD)NULL,
(DWORD)NULL, CALLBACK_NULL);
if (rc != MMSYSERR_NOERROR)
{
midiInClose(hmi);
midiOutGetErrorText(rc, msg, MSG_LEN);
MessageBox(hWnd, msg, NULL, MB_OK);
break;
}
// connect MIDI input device to
// MIDI output device
//.............................
rc = midiConnect(hmi, hmo, NULL);
if (rc != MMSYSERR_NOERROR)
{
midiInClose(hmi);
midiOutClose(hmo);
midiOutGetErrorText(rc, msg, MSG_LEN);
MessageBox(hWnd, msg, NULL, MB_OK);
break;
}
// all data received from the MIDI input device
// will be sent to the MIDI output device
//.............................................
// do something here...
// disconnect MIDI devices
//........................
midiDisconnect(hmi, hmo, NULL);
// close both MIDI devices
//........................
midiInClose(hmi);
midiOutClose(hmo);
}
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 );
}
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);
}