哲宇提供
/* Lesson 2 - Understanding Messages and Events
* Pravin Paratey ()
**/
#include <windows.h>
HWND hwndMain;//Main window handle
// Callback function
LRESULT CALLBACK MainWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam);
// Windows entry point
int WINAPI
WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow)
{
MSG msg; // MSG structure to store messages
WNDCLASSEX wcx; // WINDOW class information
// Initialize the struct to zero
ZeroMemory(&wcx,sizeof(WNDCLASSEX));
wcx.cbSize = sizeof(WNDCLASSEX); // Window size. Must always be sizeof(WNDCLASSEX)
wcx.style = CS_HREDRAW|CS_VREDRAW |CS_DBLCLKS ; // Class styles
wcx.lpfnWndProc = (WNDPROC)MainWndProc; // Pointer to the callback procedure
wcx.cbClsExtra = 0; // Extra byte to allocate following the wndclassex structure
wcx.cbWndExtra = 0; // Extra byte to allocate following an instance of the structure
wcx.hInstance = hInstance; // Instance of the application
wcx.hIcon = NULL; // Class Icon
wcx.hCursor = LoadCursor(NULL, IDC_ARROW); // Class Cursor
wcx.hbrBackground = (HBRUSH)(COLOR_WINDOW); // Background brush
wcx.lpszMenuName = NULL; // Menu resource
wcx.lpszClassName = "Lesson2"; // Name of this class
wcx.hIconSm = NULL; // Small icon for this class
// Register this window class with MS-Windows
if (!RegisterClassEx(&wcx))
return 0;
// Create the window
hwndMain = CreateWindowEx(0, //Extended window style
"Lesson2", // Window class name
"Lesson 2 - A simple win32 application", // Window title
WS_OVERLAPPEDWINDOW, // Window style
CW_USEDEFAULT,CW_USEDEFAULT, // (x,y) pos of the window
CW_USEDEFAULT,CW_USEDEFAULT, // Width and height of the window
HWND_DESKTOP, // HWND of the parent window (can be null also)
NULL, // Handle to menu
hInstance, // Handle to application instance
NULL); // Pointer to window creation data
// Check if window creation was successful
if (!hwndMain)
return 0;
// Make the window visible
ShowWindow(hwndMain,SW_SHOW);
// Process messages coming to this window
while (GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
// return value to the system
return msg.wParam;
}
// Callback procedure
LRESULT CALLBACK MainWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
{
HDChMyDC;
PAINTSTRUCTps;
charszText[] = "畫出圓形及其半徑";
intnLen = sizeof(szText)-1;
int num = 360;//描繪的點數
int r = 100;//半徑
int i,x,y;
switch(msg)
{
case WM_PAINT:
hMyDC=BeginPaint(hwnd, &ps);
//當BeginPaint()函式成功執行完畢，就會傳回DC的識別代碼，因此我們必須宣告hMyDC 變數用以儲存這個回傳的DC識別代碼。
TextOut(hMyDC,150,100,szText,nLen);
//(1)畫線
// MoveToEx(hMyDC, 100, 20, NULL);
// LineTo(hMyDC, 100, 122);
//(2)畫三角形
// MoveToEx(hMyDC, 60, 20, NULL);
// LineTo(hMyDC, 60, 122);
// LineTo(hMyDC, 264, 122);
// LineTo(hMyDC, 264, 20);
// LineTo(hMyDC, 60, 20);
//(3)畫圓
SetPixel(hMyDC,200,150,RGB(0,255,0)); //畫圓心
for (i = 0;i < num; i++){
x= (200)+i; //利用x=cos(i),y=sin(i) 的公式畫圓
y= (150)+(100)*sin(-i*3.14159/180*2);
SetPixel(hMyDC,x,y,RGB(0,255,0));
x= (200)-i; //利用x=cos(i),y=sin(i) 的公式畫圓
y= (150)+(100)*sin(i*3.14159/180*2);
SetPixel(hMyDC,x,y,RGB(0,255,0));
}
MoveToEx(hMyDC,(400/2),(300/2),NULL);//線段的起點
LineTo(hMyDC,600,150);//畫線到(x,y)座標
MoveToEx(hMyDC,(400/2),(300/2),NULL);//線段的起點
LineTo(hMyDC,200,0);//畫線到(x,y)座標
MoveToEx(hMyDC,(400/2),(300/2),NULL);//線段的起點
LineTo(hMyDC,0,150);//畫線到(x,y)座標
MoveToEx(hMyDC,(400/2),(300/2),NULL);//線段的起點
LineTo(hMyDC,200,600);//畫線到(x,y)座標
EndPaint(hwnd, &ps);
break;
case WM_CLOSE:
DestroyWindow(hwnd);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, msg, wParam, lParam);
}
}
int nTopXY(UINT wnd_XY, UINT wnd_Dim)
{
int resl;
resl=((wnd_Dim/2)-(wnd_XY/2));
return resl;
}
哲宇提供2
/* Lesson 2 - Understanding Messages and Events
* Pravin Paratey ()
**/
#include <windows.h>
HWND hwndMain;//Main window handle
// Callback function
LRESULT CALLBACK MainWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam);
// Windows entry point
int WINAPI
WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow)
{
MSG msg; // MSG structure to store messages
WNDCLASSEX wcx; // WINDOW class information
// Initialize the struct to zero
ZeroMemory(&wcx,sizeof(WNDCLASSEX));
wcx.cbSize = sizeof(WNDCLASSEX); // Window size. Must always be sizeof(WNDCLASSEX)
wcx.style = CS_HREDRAW|CS_VREDRAW |CS_DBLCLKS ; // Class styles
wcx.lpfnWndProc = (WNDPROC)MainWndProc; // Pointer to the callback procedure
wcx.cbClsExtra = 0; // Extra byte to allocate following the wndclassex structure
wcx.cbWndExtra = 0; // Extra byte to allocate following an instance of the structure
wcx.hInstance = hInstance; // Instance of the application
wcx.hIcon = NULL; // Class Icon
wcx.hCursor = LoadCursor(NULL, IDC_ARROW); // Class Cursor
wcx.hbrBackground = (HBRUSH)(COLOR_WINDOW); // Background brush
wcx.lpszMenuName = NULL; // Menu resource
wcx.lpszClassName = "Lesson3"; // Name of this class
wcx.hIconSm = NULL; // Small icon for this class
// Register this window class with MS-Windows
if (!RegisterClassEx(&wcx))
return 0;
// Create the window
hwndMain = CreateWindowEx(0, //Extended window style
"Lesson3", // Window class name
"Lesson 3 - A simple win32 application: draw sin function", // Window title
WS_OVERLAPPEDWINDOW, // Window style
CW_USEDEFAULT,CW_USEDEFAULT, // (x,y) pos of the window
CW_USEDEFAULT,CW_USEDEFAULT, // Width and height of the window
HWND_DESKTOP, // HWND of the parent window (can be null also)
NULL, // Handle to menu
hInstance, // Handle to application instance
NULL); // Pointer to window creation data
// Check if window creation was successful
if (!hwndMain)
return 0;
// Make the window visible
ShowWindow(hwndMain,SW_SHOW);
// Process messages coming to this window
while (GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
// return value to the system
return msg.wParam;
}
// Callback procedure
LRESULT CALLBACK MainWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
{
HDChMyDC;
PAINTSTRUCTps;
double pi=3.14159;
charszText[] = "圖為60Sin(x)圖形,週期2Pi";
charszText2[] = "X";
charszText3[] = "Y";
intnLen = sizeof(szText)-1;
intnLen2 = sizeof(szText2)-1;
intnLen3 = sizeof(szText3)-1;
int num = 360;//描繪的點數
int i,x,y;
switch (msg)
{
case WM_PAINT:
hMyDC=BeginPaint(hwnd, &ps);
//當BeginPaint()函式成功執行完畢，就會傳回DC的識別代碼，因此我們必須宣告hMyDC 變數用以儲存這個回傳的DC識別代碼。
TextOut(hMyDC,100,270,szText,nLen);
TextOut(hMyDC,num+110,250,szText2,nLen2);
TextOut(hMyDC,100,35,szText3,nLen3);
// 畫Y軸
MoveToEx(hMyDC, 100, 250, NULL);
LineTo(hMyDC, 100, 50);
//(3)畫Sin
SetPixel(hMyDC,100,250,RGB(0,0,255)); //畫原點
for (i = 0;i < num; i++){
x= (100)+(i);
y= (250)-(60*sin(i*pi/180)); //弳度要換成角度
SetPixel(hMyDC,x,y,RGB(255,0,0));
}
MoveToEx(hMyDC,(100),(250),NULL); //畫X軸
LineTo(hMyDC,i+100,250);
EndPaint(hwnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
// Call the default window handler
return DefWindowProc(hwnd,msg,wParam,lParam);
}
return 0;
}
野田提供
/* Lesson 2 - Understanding Messages and Events
* Pravin Paratey ()
**/
#include <windows.h>
#include <math.h>
HWND hwndMain;//Main window handle
// Callback function
LRESULT CALLBACK MainWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam);
// Windows entry point
int WINAPI
WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nCmdShow)
{
MSG msg; // MSG structure to store messages
WNDCLASSEX wcx; // WINDOW class information
// Initialize the struct to zero
ZeroMemory(&wcx,sizeof(WNDCLASSEX));
wcx.cbSize = sizeof(WNDCLASSEX); // Window size. Must always be sizeof(WNDCLASSEX)
wcx.style = CS_HREDRAW|CS_VREDRAW |CS_DBLCLKS ; // Class styles
wcx.lpfnWndProc = (WNDPROC)MainWndProc; // Pointer to the callback procedure
wcx.cbClsExtra = 0; // Extra byte to allocate following the wndclassex structure
wcx.cbWndExtra = 0; // Extra byte to allocate following an instance of the structure
wcx.hInstance = hInstance; // Instance of the application
wcx.hIcon = NULL; // Class Icon
wcx.hCursor = LoadCursor(NULL, IDC_ARROW); // Class Cursor
wcx.hbrBackground = (HBRUSH)(COLOR_WINDOW); // Background brush
wcx.lpszMenuName = NULL; // Menu resource
wcx.lpszClassName = "Lesson3"; // Name of this class
wcx.hIconSm = NULL; // Small icon for this class
// Register this window class with MS-Windows
if (!RegisterClassEx(&wcx))
return 0;
// Create the window
hwndMain = CreateWindowEx(0, //Extended window style
"Lesson3", // Window class name
"Lesson 3 - A simple win32 application: draw circle", // Window title
WS_OVERLAPPEDWINDOW, // Window style
CW_USEDEFAULT,CW_USEDEFAULT, // (x,y) pos of the window
CW_USEDEFAULT,CW_USEDEFAULT, // Width and height of the window
HWND_DESKTOP, // HWND of the parent window (can be null also)
NULL, // Handle to menu
hInstance, // Handle to application instance
NULL); // Pointer to window creation data
// Check if window creation was successful
if (!hwndMain)
return 0;
// Make the window visible
ShowWindow(hwndMain,SW_SHOW);
// Process messages coming to this window
while (GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
// return value to the system
return msg.wParam;
}
// Callback procedure
LRESULT CALLBACK MainWndProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
{
HDChMyDC;
PAINTSTRUCTps;
charszText[] = "y=r*sin(x)";
intnLen = sizeof(szText)-1;
int num = 3600;//描繪的點數
int r = 100;//半徑
int i,x,y;
switch (msg)
{
case WM_PAINT:
hMyDC=BeginPaint(hwnd, &ps);
//睛^eginPaint()函式成功執行完畢，就會傳回DC的識別代碼，因此我們必須宣告hMyDC 變數用以儲存這個回傳的DC識別代碼。
TextOut(hMyDC,300,50,szText,nLen);
//(1)畫線
// MoveToEx(hMyDC, 60, 20, NULL);
// LineTo(hMyDC, 264, 122);
//(2)畫三角形
// MoveToEx(hMyDC, 60, 20, NULL);
// LineTo(hMyDC, 60, 122);
// LineTo(hMyDC, 264, 122);
// LineTo(hMyDC, 60, 20);
//(3)畫?E
SetPixel(hMyDC,300,100,RGB(0,0,255));
for (i = 0;i < num; i++){
x= (100)+(i/6);
y= (200)-r*(sin(0.01*i));
SetPixel(hMyDC,x,y,RGB(255,0,0));
}
MoveToEx(hMyDC,(100),(50),NULL);
LineTo(hMyDC,100,350);
MoveToEx(hMyDC,(50),(200),NULL);
LineTo(hMyDC,800,200);
EndPaint(hwnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
// Call the default window handler
return DefWindowProc(hwnd,msg,wParam,lParam);
}
return 0;
}