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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 1 of 3
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CHAPTER4
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ADJWNDRT.C
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C/C++ Source or Header
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1996-01-06
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183 lines
#include <windows.h>
#include "AdjWndRt.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
HWND hWnd = NULL;
HINSTANCE hInst; // current instance
LPCTSTR lpszAppName = "MyApp";
LPCTSTR lpszClassName = "My Class";
BOOL InitAppInstance( HINSTANCE hInstance );
BOOL RegisterWin95( CONST WNDCLASS* lpwc );
int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPTSTR lpCmdLine, int nCmdShow)
{
MSG msg;
RECT rect;
// Check to see if there is previous version of the application
// currently running. If not, then register the application class.
//................................................................
if ( !hPrevInstance && !InitAppInstance( hInstance ) )
return FALSE;
hInst = hInstance;
// Initialize a RECT with the size and position of
// the client area we want.
//...................................
rect.left = 100; // 100 pixels from the left of the screen.
rect.top = 150; // 150 pixels from the top of the screen.
rect.right = 200; // The width will be 100 pixels.
rect.bottom = 200; // the height will be 50 pixels.
AdjustWindowRect( &rect, WS_OVERLAPPEDWINDOW, TRUE );
hWnd = CreateWindow( lpszClassName, // Class name registered.
"My Application", // Title bar text.
WS_OVERLAPPEDWINDOW, // Window style.
rect.left, // Use the rect calculated
rect.top, // with AdjustWindowRect()
rect.right, // for the size and
rect.bottom, // position.
NULL, // No parent.
NULL, // Use class menu.
hInstance,
NULL);
if ( !hWnd )
return( FALSE );
ShowWindow( hWnd, nCmdShow );
UpdateWindow( hWnd );
while ( GetMessage( &msg, NULL, 0, 0 ) )
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return( TRUE );
}
BOOL InitAppInstance( HINSTANCE hInstance )
{
WNDCLASS wc;
// Register the main application window class.
//............................................
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 = lpszClassName;
if ( IS_WIN95 )
{
if ( !RegisterWin95( &wc ) )
return( FALSE );
}
else if ( !RegisterClass( &wc ) )
return( FALSE );
return( TRUE );
}
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 WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
switch( uMsg )
{
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);
}