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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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chapter2
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findtext.c
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C/C++ Source or Header
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1996-03-06
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9KB
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292 lines
#include <windows.h>
#include "findtext.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
HWND hwndFind = NULL;
LPCTSTR lpszAppName = "MyApp";
LPCTSTR lpszTitle = "FindText()/ReplaceText()";
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) )
{
if ( hwndFind && IsDialogMessage( hwndFind, &msg ) )
continue;
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 MAX_FIND_LEN 80
LPCTSTR lpszText = "This is a sample of text that can be searched using the"\
" Find Text or Replace Text common dialog box.";
LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
static FINDREPLACE fr;
static char szFind[MAX_FIND_LEN+1];
static char szReplace[MAX_FIND_LEN+1];
static char szBuf[512];
static char szNewBuf[512];
static UINT uFindMessage = 0;
static HWND hEdit = NULL;
static DWORD dwPos = 0;
// Handle Find and Replace common dialog message.
//...............................................
if ( uMsg == uFindMessage )
{
LPFINDREPLACE lpfr = (LPFINDREPLACE)lParam;
// Handle the Find Next command.
//..............................
if ( lpfr->Flags & FR_FINDNEXT )
{
LPTSTR lpFound;
DWORD dwCurPos = SendMessage( hEdit, EM_GETSEL, 0, 0 );
// If the position is the same as where we were,
// increment the position sow we find the next string.
//....................................................
if ( LOWORD(dwCurPos) == dwPos && dwPos > 0 )
dwPos++;
else
dwPos = LOWORD( dwCurPos );
SendMessage( hEdit, WM_GETTEXT, sizeof( szBuf ), (LPARAM)szBuf );
// Find the search string within the text starting at the
// current cursor position within the edit control.
//.......................................................
lpFound = strstr( &szBuf[ LOWORD(dwPos) ], lpfr->lpstrFindWhat );
// If the text was found, highlight it.
//.....................................
if ( lpFound )
{
dwPos = lpFound-&szBuf[0];
SendMessage( hEdit, EM_SETSEL, dwPos,
strlen( lpfr->lpstrFindWhat )+dwPos );
}
else
MessageBox( hWnd, "The string was not found.",
"Find", MB_OK | MB_ICONINFORMATION );
}
// Handle the Replace command.
//............................
if ( lpfr->Flags & FR_REPLACE )
{
SendMessage( hEdit, WM_GETTEXT, sizeof( szBuf ), (LPARAM)szBuf );
szBuf[dwPos] = 0;
strcpy( szNewBuf, szBuf );
strcat( szNewBuf, lpfr->lpstrReplaceWith );
strcat( szNewBuf, &szBuf[strlen( lpfr->lpstrFindWhat )+dwPos] );
SendMessage( hEdit, WM_SETTEXT, 0, (LPARAM)szNewBuf );
SendMessage( hEdit, EM_SETSEL, dwPos,
strlen( lpfr->lpstrReplaceWith )+dwPos );
}
// Handle the Replace All command.
//................................
if ( lpfr->Flags & FR_REPLACEALL )
MessageBox( hWnd, "Replace All is not implemented.",
"Replace", MB_OK | MB_ICONINFORMATION );
// If the dialog is terminating, set the handle to NULL.
//......................................................
if ( lpfr->Flags & FR_DIALOGTERM )
hwndFind = NULL;
}
switch( uMsg )
{
case WM_CREATE :
memset( &fr, 0, sizeof( FINDREPLACE ) );
uFindMessage = RegisterWindowMessage( "commdlg_FindReplace" );
hEdit = CreateWindow( "EDIT", "",
WS_CHILD | ES_LEFT |
WS_VISIBLE | ES_MULTILINE | ES_NOHIDESEL,
0, 0,
0, 0,
hWnd,
(HMENU)101,
hInst,
NULL
);
SendMessage( hEdit, WM_SETTEXT, 0, (LPARAM)lpszText );
break;
case WM_SIZE :
MoveWindow( hEdit, 0, 0, LOWORD( lParam ), HIWORD( lParam ), TRUE );
break;
case WM_COMMAND :
switch( LOWORD( wParam ) )
{
case IDM_FIND :
fr.lStructSize = sizeof( FINDREPLACE );
fr.hwndOwner = hWnd;
fr.lpstrFindWhat = szFind;
fr.wFindWhatLen = MAX_FIND_LEN;
fr.Flags = FR_MATCHCASE | FR_HIDEUPDOWN | FR_HIDEWHOLEWORD;
hwndFind = FindText( &fr );
break;
case IDM_REPLACE :
fr.lStructSize = sizeof( FINDREPLACE );
fr.hwndOwner = hWnd;
fr.lpstrFindWhat = szFind;
fr.lpstrReplaceWith = szReplace;
fr.wFindWhatLen = MAX_FIND_LEN;
fr.wReplaceWithLen = MAX_FIND_LEN;
fr.Flags = FR_MATCHCASE | FR_HIDEUPDOWN | FR_HIDEWHOLEWORD;
hwndFind = ReplaceText( &fr );
break;
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);
}