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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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CHAPTE18
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SENDCMD.C
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C/C++ Source or Header
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1996-04-29
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6KB
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217 lines
#include <windows.h>
#include <stdio.h>
#include "SendCmd.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 = "mciSendCommand()";
// 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 );
}
#define MSG_LEN 1024
char msg[MSG_LEN+1];
MCIERROR rc;
UINT uDeviceId = 0;
MCI_OPEN_PARMS open;
MCI_PLAY_PARMS play;
LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
switch( uMsg )
{
case WM_COMMAND :
switch( LOWORD( wParam ) )
{
case IDM_TEST:
{
// open waveform-audio device
//...........................
open.dwCallback = (DWORD)hWnd;
open.lpstrDeviceType = "waveaudio";
open.lpstrElementName = "Sample2.wav";
rc = mciSendCommand(0, MCI_OPEN,
MCI_OPEN_TYPE |
MCI_OPEN_ELEMENT,
(DWORD)&open);
if (rc)
{
mciGetErrorString(rc, msg, MSG_LEN);
MessageBox(hWnd, msg, NULL, MB_ICONSTOP|MB_OK);
return(0);
}
// play back sample2.wav
//......................
uDeviceId = open.wDeviceID;
play.dwCallback = (DWORD)hWnd;
rc = mciSendCommand(uDeviceId, MCI_PLAY, MCI_NOTIFY,
(DWORD)&play);
}
break;
case IDM_ABOUT :
DialogBox( hInst, "AboutBox", hWnd, About );
break;
case IDM_EXIT :
DestroyWindow(hWnd);
break;
}
break;
case MM_MCINOTIFY:
// close waveform-audio device
//............................
mciSendCommand(uDeviceId, MCI_CLOSE, 0, (DWORD)NULL);
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);
}