励、GDI啌崧圭塀!WHATSIZE殻會
Windows議弌煽雰?及匯鐙泌採亟恬Windows殻會議初府猟嫗竃孖壓ゞMicrosoft Systems Journal〃1986定12埖催貧。壓椎鐙猟嫗嶄?袈箭殻會出恂WSZ?仝what size?焚担樫雁々??万參夕殆、哂雁才坐致葎汽了?塋樵墨塋焦瘕魑調麸 D埜檉茂魑銚賾鰔廾羆省?WHATSIZE?泌殻會5-6侭幣。殻會?塋樵牧堽縉峩帆甚穫餬淑熟塋承調或斛塋焦瘕魑調麸 ?
殻會5-6 WHATSIZE
WHATSIZE.C
/*------------------------------------------------------------
WHATSIZE.C -- What Size is the Window?
(c) Charles Petzold, 1998
----------------------------------------------------------*/
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("WhatSize") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc= WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon= LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor= LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground= (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName= szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("What Size is the Window?"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}
void Show (HWND hwnd, HDC hdc, int xText, int yText, int iMapMode,
TCHAR * szMapMode)
{
TCHAR szBuffer [60] ;
RECT rect ;
SaveDC (hdc) ;
SetMapMode (hdc, iMapMode) ;
GetClientRect (hwnd, &rect) ;
DPtoLP (hdc, (PPOINT) &rect, 2) ;
RestoreDC (hdc, -1) ;
TextOut ( hdc, xText, yText, szBuffer,
wsprintf (szBuffer, TEXT ("%-20s %7d %7d %7d %7d"), szMapMode,
rect.left, rect.right, rect.top, rect.bottom)) ;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static TCHAR szHeading [] =
TEXT ("Mapping Mode Left Right Top Bottom") ;
static TCHAR szUndLine [] =
TEXT ("------------ ---- ----- --- ------") ;
static int cxChar, cyChar ;
HDC hdc ;
PAINTSTRUCT ps ;
TEXTMETRIC tm ;
switch (message)
{
case WM_CREATE:
hdc = GetDC (hwnd) ;
SelectObject (hdc, GetStockObject (SYSTEM_FIXED_FONT)) ;
GetTextMetrics (hdc, &tm) ;
cxChar = tm.tmAveCharWidth ;
cyChar = tm.tmHeight + tm.tmExternalLeading ;
ReleaseDC (hwnd, hdc) ;
return 0 ;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
SelectObject (hdc, GetStockObject (SYSTEM_FIXED_FONT)) ;
SetMapMode (hdc, MM_ANISOTROPIC) ;
SetWindowExtEx (hdc, 1, 1, NULL) ;
SetViewportExtEx (hdc, cxChar, cyChar, NULL) ;
TextOut (hdc, 1, 1, szHeading, lstrlen (szHeading)) ;
TextOut (hdc, 1, 2, szUndLine, lstrlen (szUndLine)) ;
Show (hwnd, hdc, 1, 3, MM_TEXT, TEXT ("TEXT (pixels)")) ;
Show (hwnd, hdc, 1, 4, MM_LOMETRIC, TEXT ("LOMETRIC (.1 mm)")) ;
Show (hwnd, hdc, 1, 5, MM_HIMETRIC, TEXT ("HIMETRIC (.01 mm)")) ;
Show (hwnd, hdc, 1, 6, MM_LOENGLISH, TEXT ("LOENGLISH (.01 in)")) ;
Show (hwnd, hdc, 1, 7, MM_HIENGLISH,TEXT ("HIENGLISH (.001 in)")) ;
Show (hwnd, hdc, 1, 8, MM_TWIPS, EXT ("TWIPS (1/1440 in)")) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
葎阻宴噐喘TextOut痕方?塋笑渡■しかく?WHATSIZE聞喘阻匯嶽耕協寂鉦議忖悶。和中匯訳酒汽議偃峰祥辛參俳算葎耕協寂鉦議忖悶?壓Windows 3.0嶄万頁單枠聞喘議??
SelectObject (hdc, GetStockObject (SYSTEM_FIXED_FONT)) ;
嗤曾倖揖劔議痕方喘噐僉函鮫永才鮫泡。崧念中戻欺議?WHATSIZE匆聞喘MM_ANISTROPIC啌崧圭塀繍貸辞汽了譜協葎忖憲寄弌。
輝WHATSIZE俶勣函誼鎗嶽啌崧圭塀岻匯議?塋焦瘕魑調麸(隠k譆4翊診圧追莟個敞檻i莇38志嶄袖柘穫餬淑州hゝ地塋焦瘕鰈瑋蝪ix?万断廬算葎貸辞恫炎?隼朔壓?塋笑渡?僐娃vii峺還mg穫餬淑宗5從怠睾1?4茂魎翮誑?WHATSIZE議Show痕方戦?
SaveDC (hdc) ; SetMapMode (hdc, iMapMode) ; GetClientRect (hwnd, &rect) ; DptoLP (hdc, (PPOINT) &rect, 2) ; RestoreDC (hdc, -1) ;
夕5-19?塋樵?WHATSIZE議灸侏補竃。