Windows API (Application programming interface).
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Windows, , , Hello, Windows! [34].
80 , Windows.
#include <windows.h>
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static char szAppName[] = "Hello";
HWND hwnd;
MSG msg;
WNDCLASSEX wndclass;
wndclass.cbSize = sizeof (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;
wndclass.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
RegisterClassEx (&wndclass);
hwnd = CreateWindow (szAppName,
"First Example",
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 iMsg, WPARAM wParam, LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
switch (iMsg) {
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps);
GetClientRect (hwnd, &rect);
DrawText (hdc, "Hello, Windows!", -1, &rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER);
EndPaint (hwnd, &ps);
return 0;
case WM_DESTROY:
PostQuitMessage (0);
return 0;
}
return DefWindowProc (hwnd, iMsg, wParam, lParam);
}
(. 6.1), Hello, Windows!.
Windows: , , , .
. 6.1. H ello
.