Code:
#include <windows.h>
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam,
LPARAM lParam);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR CmdLine, int iCmdShow)
{
TCHAR szProg[] = TEXT ("Program...");
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wndclass.hInstance = hInstance;
wndclass.lpfnWndProc = WndProc;
wndclass.lpszClassName = szProg;
wndclass.lpszMenuName = NULL;
wndclass.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
if ( !RegisterClass(&wndclass) )
{
MessageBox(NULL, TEXT("Error registering window class"),
szProg, MB_ICONERROR);
return 0;
}
hwnd = CreateWindow(szProg, TEXT("..."),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
200, 200,
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 int cxClient, cyClient;
HDC hdc;
PAINTSTRUCT ps;
switch ( message )
{
case WM_SIZE:
cxClient = LOWORD (lParam);
cyClient = HIWORD (lParam);
return 0;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
SetMapMode(hdc, MM_ANISOTROPIC);
SetViewportOrgEx(hdc, cxClient / 2, cyClient / 2, NULL);
SetWindowExtEx(hdc, 1, 1, NULL);
SetViewportExtEx(hdc, 5, -5, NULL);
EndPaint(hwnd, &ps);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd, message, wParam, lParam);
}