Programming Windows程式开发设计指南->第七章 例子程序2
/*_############################################################################
_##
_## Programming Windows程式开发设计指南->第七章 例子程序2
_## Author: xwlee
_## Time: 2007.06.22
_## Chang'an University
_## Development condition: win2003 Server+VC6.0
_##
_## 程序7-2 CHECKER1
_## CHECKER1.C 文件
_## 简单的鼠标处理：一个例子
_## 程序只是进行验证
_##
_##
_## CHECKER1.C -- Connect-the-Dots Mouse Demo Program
_## (c) Charles Petzold, 1998
_##
_##########################################################################*/
#include
#define DIVISIONS 10
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,PSTR szCmdLine, int iCmdShow)
{ static TCHAR szAppName[] = TEXT ("Checker1") ;
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 ("Program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow ( szAppName, TEXT ("Checker1 Mouse Hit-Test Demo"),
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 ;
}
LRESULT CALLBACK WndProc ( HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam)
{
static BOOL fState[DIVISIONS][DIVISIONS] ;
static int cxBlock, cyBlock ;
HDC hdc ;
int x, y ;
PAINTSTRUCT ps ;
RECT rect ;
switch (message)
{
case WM_SIZE :
cxBlock = LOWORD (lParam) / DIVISIONS ;
cyBlock = HIWORD (lParam) / DIVISIONS ;
return 0 ;
case WM_LBUTTONDOWN :
x = LOWORD (lParam) / cxBlock ;
y = HIWORD (lParam) / cyBlock ;
if (x < DIVISIONS && y < DIVISIONS)
{
fState [x][y] ^= 1 ;
rect.left = x * cxBlock ;
rect.top = y * cyBlock ;
rect.right = (x + 1) * cxBlock ;
rect.bottom = (y + 1) * cyBlock ;
InvalidateRect (hwnd, &rect, FALSE) ;
}
else
MessageBeep (0) ;
return 0 ;
case WM_PAINT :
hdc = BeginPaint (hwnd, &ps) ;
for (x = 0 ; x < DIVISIONS ; x++)
for (y = 0 ; y < DIVISIONS ; y++)
{
Rectangle (hdc, x * cxBlock, y * cyBlock,
(x + 1) * cxBlock, (y + 1) * cyBlock) ;
if (fState [x][y])
{
MoveToEx (hdc, x * cxBlock, y * cyBlock, NULL) ;
LineTo (hdc, (x+1) * cxBlock, (y+1) * cyBlock) ;
MoveToEx (hdc, x * cxBlock, (y+1) * cyBlock, NULL) ;
LineTo (hdc, (x+1) * cxBlock, y * cyBlock) ;
}
}
EndPaint (hwnd,&ps);
return 0 ;
case WM_DESTROY :
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}