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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 2 of 3.iso
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chapter6
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makedl.c
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C/C++ Source or Header
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1996-03-06
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7KB
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244 lines
#include <windows.h>
#include <commctrl.h>
#include "makedl.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 = "MakeDragList()";
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;
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 );
}
LPCTSTR lpszData[8] = { "Apple", "Orange", "Pear", "Watermeleon",
"Grape", "Peach", "Strawberry", "Rasberry" };
LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
static LPDRAGLISTINFO lpdli;
static int nItem;
static int nItemToMove = -1;
static UINT uDLMsg = 0;
static HWND hList = NULL;
// Handle the dragging notifications.
//...................................
if ( uMsg == uDLMsg )
{
lpdli = (LPDRAGLISTINFO)lParam;
switch (lpdli->uNotification)
{
case DL_BEGINDRAG:
nItemToMove = LBItemFromPt(lpdli->hWnd, lpdli->ptCursor, TRUE);
return( TRUE );
case DL_DRAGGING:
nItem = LBItemFromPt(lpdli->hWnd, lpdli->ptCursor, TRUE);
DrawInsert( hWnd, lpdli->hWnd, nItem);
if ( nItem != -1 )
{
SetCursor( LoadCursor( hInst, "DragCursor" ) );
return( 0 );
}
return( DL_STOPCURSOR );
case DL_CANCELDRAG :
nItemToMove = -1;
break;
case DL_DROPPED:
nItem = LBItemFromPt(lpdli->hWnd, lpdli->ptCursor, TRUE);
if ( nItem != -1 )
{
char szBuf[40];
SendMessage( hList, LB_GETTEXT, nItemToMove, (LPARAM)szBuf );
SendMessage( hList, LB_DELETESTRING, nItemToMove, 0 );
SendMessage( hList, LB_INSERTSTRING, nItem, (LPARAM)szBuf );
SendMessage( hList, LB_SETCURSEL, nItem, 0 );
}
DrawInsert(hWnd, lpdli->hWnd, -1);
nItemToMove = -1;
return( DL_CURSORSET );
}
}
switch( uMsg )
{
case WM_CREATE :
InitCommonControls();
hList = CreateWindow( "LISTBOX", "",
WS_CHILD | WS_VISIBLE | LBS_STANDARD |
LBS_NOINTEGRALHEIGHT,
10, 100, 100, 100,
hWnd,
(HMENU)1,
hInst,
NULL);
if ( hList )
{
int i;
for( i=0; i<8; i++ )
SendMessage( hList, LB_INSERTSTRING, (WPARAM)-1,
(LPARAM)lpszData[i] );
MakeDragList( hList );
uDLMsg = RegisterWindowMessage( DRAGLISTMSGSTRING );
}
break;
case WM_SIZE :
if ( hList )
MoveWindow( hList, 0, 0, LOWORD( lParam ), HIWORD( lParam ), FALSE );
break;
case WM_COMMAND :
switch( LOWORD( wParam ) )
{
case IDM_ABOUT :
DialogBox( hInst, "AboutBox", hWnd, (DLGPROC)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);
}