ciabatta/tests/winmain.c

57 lines
1.4 KiB
C

#include <assert.h>
#include <windows.h>
LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE p, LPSTR pCmdLine, int nCmdShow) {
const char CLASS_NAME[] = "Sample Window Class";
assert(0);
WNDCLASS wc = {
.lpfnWndProc = WindowProc,
.hInstance = hInstance,
.lpszClassName = CLASS_NAME,
};
RegisterClass(&wc);
HWND hwnd = CreateWindowEx(
0,
CLASS_NAME,
"Learn to Program Windows",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL
);
if (hwnd == NULL) {
return 0;
}
ShowWindow(hwnd, nCmdShow);
MSG msg;
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return 0;
}
LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
switch (uMsg)
{
case WM_DESTROY:
PostQuitMessage(0);
return 0;
case WM_PAINT:
{
PAINTSTRUCT ps;
HDC hdc = BeginPaint(hwnd, &ps);
// All painting occurs here, between BeginPaint and EndPaint.
FillRect(hdc, &ps.rcPaint, (HBRUSH) (COLOR_WINDOW+1));
EndPaint(hwnd, &ps);
}
return 0;
}
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}